| Is vitamin D supplementation associated with an improvement in functional capacity in older people with vitamin D insufficiency and chronic heart failure? A double blind, placebo controlled trial. | Is Vitamin D supplementation associated with an improvement in functional capacity in older people with chronic heart failure? A double blind, placebo controlled trial | ISRCTN51372896 |
| The influence of hypovitaminosis D on iron deficiency in healthy women | Influence of vitamin D on body iron store in healthy women from NHANES: a cross-sectional study using an econometric model of causal inference | ISRCTN18154581 |
| A Study of the Bioequivalence of 70-mg Alendronate and 70-mg Alendronate in Combination With 5600 IU Vitamin D (MK0217A-253) | A 2-Part, Open-Label, Randomized, Crossover Study to Evaluate the Bioequivalence of the 70-mg Alendronate/5600 IU Vitamin D3 Final Market Combination Tablet to a 70-mg Alendronate Marketed Tablet, and the Relative Bioavailability of Vitamin D3 | NCT00803790 |
| Study of fall prevention by vitamin D in the elderly | Study of fall prevention by vitamin D in the elderly - Fall prevention study by vitamin D in the elderly | JPRN-UMIN000001831 |
| Does vitamin D improve markers of vascular health in type 2 diabetes? | Does vitamin D improve markers of vascular health in type 2 diabetes? | EUCTR2005-003615-70-GB |
| Vitamin D Levels in Children With IBD | Optimization of Vitamin D Stores and Its Impact on the Bone Health and Disease Outcomes of Children and Adolescents With IBD. | NCT00621257 |
| Evaluation of Potential Vitamin D Effects on Muscle: a Pilot Study | Evaluation of Potential Vitamin D Effects on Muscle: a Pilot Study | NCT00593996 |
| Vitamin D Deficiency, Insulin Resistance and FGF-23 | Impact of Vitamin D Deficiency on Insulin Resistance and the Regulation of FGF-23 | NCT00491322 |
| Cord Blood Plus Vitamin D and Omega 3s in T1D | Transfusion of Autologous Umbilical Cord Blood Plus Vitamin D and Omega 3 Fatty Acids to Preserve Beta Cell Function in Children With Recent Onset Type 1 Diabetes - A Pilot Study | NCT00873925 |
| Does Vitamin D improve markers of vascular health in stroke patients? | Does Vitamin D improve markers of vascular health in stroke patients? | EUCTR2007-001324-13-GB |
| Vitamin D and n-3 Polyunsaturated Fatty Acids (PUFAs) to Prevent Chronic Pain Following Major Thermal Burn Injury | Pilot, Double-blind, Randomized Controlled, Multi-center Study of the Effects of Fish Oil and Vitamin D in the Prevention of Chronic Pain Following Major Thermal Burn Injury | NCT03313076 |
| Preoperative Vitamin D Levels and Respiratory Complications of General Anesthesia | Evaluation of the Effect of Preoperative Vitamin D Levels and Respiratory Complications of General Anesthesia | NCT03342651 |
| Effects of vitamin D and calcium on bone and falls in an elderly population of Australian women selected for their history of falling | A randomised controlled study to evaluate the effects of vitamin D and calcium on lowering fall risk and improving bone structure in an elderly population of Australian women with low vitamin D status and a history of falling | ACTRN12606000331538 |
| The effect of vitamin D supplementation on patients with irritable bowel syndrome | Effects of supplementation with vitamin D on clinical outcomes, quality of life, anxiety, serum CRH and IL-6 in Patient with irritable bowel syndrome the predominant form diarrhea | IRCT201709232709N45 |
| Vitamin D Deficiency of Couples and Infertility | Prospective Cohort Study About Vitamin D Deficiency of Couples and Infertility | NCT03305510 |
| Characterization of Hyperparathyroidism and Vitamin D Deficiency in Obesity | Characterization of Hyperparathyroidism and Vitamin D Deficiency in Obesity | NCT00288873 |
| Primary Care Prevention of Falls and Fractures in the elderly by Annual Vitamin D Supplementation | Primary Care Prevention of Falls and Fractures in the elderly by Annual Vitamin D Supplementation | ISRCTN83409867 |
| Does Vitamin D improve markers of vascular health in type 2 diabetes? | Does Vitamin D improve markers of vascular health in type 2 diabetes? A randomised controlled trial | ISRCTN46424296 |
| Effects of Vitamin D Supplementation on Antimycobacterial Immunity | Effects of Vitamin D Supplementation on Antimycobacterial Immunity: A Randomised Trial | NCT00157066 |
| A pilot randomised controlled trial to determine if vitamin D treatment will result in a greater bone mass acquisition in pubertal girls - Influence of vitamin D on bone health in pubertal girls | A pilot randomised controlled trial to determine if vitamin D treatment will result in a greater bone mass acquisition in pubertal girls - Influence of vitamin D on bone health in pubertal girls | EUCTR2005-004729-25-GB |
| Vitamin D Supplementation and Sunlight Exposure in Brazilian Women Living in Opposite Latitudes (The D-SOL Study) | A Systems Biology Approach to the Interaction Between Vitamin D Supplementation and Sunlight Exposure in Brazilian Women Living in Opposite Latitudes (The D-SOL Study). | NCT03318029 |
| The effect of Vitamin D Supplementation on Cognitive Functions in Patients Receiving Maintenance Methadone Treatment | The effect of Vitamin D Supplementation on Cognitive Functions in Patients Receiving Maintenance Methadone Treatment | IRCT2017101133079N4 |
| Effect of Vitamin D Supplementation on the Physical Function of Older Adults Living Alone | Effect of Vitamin D Supplementation on the Physical Function of Older Adults Living Alone | KCT0002490 |
| To compare the efficacy of water soluble vitamin D3 versus fatsoluble vitamin D3 in vitamin D deficient adults and elderly. | To evaluate the efficacy of micellized vitamin D3 versus fat soluble vitamin D3 in vitamin D deficient adults and elderly with type IV& V skin. | CTRI/2017/10/010187 |
| Study the effect of vitamin D on the symptoms of urticaria | Study the effect of vitamin D on the activity of T-regulator cell and Th17 and its association with clinical symptoms of patients with idiopathic chronic urticaria | IRCT2017092123235N12 |
| High-Dose Vitamin D Induction in Optic Neuritis | A Phase II Trial of High-Dose Vitamin D Induction in Optic Neuritis (VitaDON 2) | NCT03302585 |
| 20070360 Incident Dialysis | Randomized Trial to Evaluate the Efficacy and Safety of Cinacalcet Treatment in Combination With Low Dose Vitamin D for the Treatment of Subjects With Secondary Hyperparathyroidism (SHPT) Recently Initiating Hemodialysis | NCT00803712 |
| Calcium and Vitamin D to Optimize Bone Mass in Boys With Risperidone-induced Hyperprolactinemia | Counteracting Risperidone-Induced Hyperprolactinemia in Youths | NCT00799383 |
| A Study of the Bioequivalence of 70 mg Alendronate and 70 mg Alendronate in Combination With 2800 IU Vitamin D | A 2-Part, Open-Label, Randomized, Crossover Study to Evaluate the Bioequivalence of the 70 mg Alendronate/2800 IU Vitamin D3 Final Market Combination Tablet to a 70 mg Alendronate Marketed Tablet, and the Relative Bioavailability of Vitamin D3 | NCT00806416 |
| Effect of alendronate or calcium plus vitamin D3 on thalassemic osteopathy | Effect of alendronate or calcium plus vitamin D3 on thalassemic osteopathy; a randomized placebo controlled double blind clinical trial | SLCTR/2008/018 |
| Vitamin D Supplementation in Physical Performance | Efficacy of Vitamin D Supplementation in Physical Performance of Iranian Elite Athletes | NCT03325686 |
| Serum, Dietary and Supplemental Vitamin D's Association With Cognitive Decline | Vitamin D Status and Intakes and Their Association With Cognitive Trajectory in a Longitudinal Study of Urban Adults | NCT03320109 |
| Comparison of the Efficacy of Calcium-cholecalciferol Foodstuffs and Calcium-cholecalciferol Supplement | The Prevalence of Vitamin D Insufficiency in Primary School Children and Comparison of the Effect of Calcium-Vitamin D-Fortified Milk, -Orange Juice and Calcium-Vitamin D Supplement | NCT00864539 |
| Does Vitamin D supplementation improve function and quality of life in older heart failure patients - A double blind, placebo controlled trial | Does Vitamin D supplementation improve function and quality of life in older heart failure patients - A double blind, placebo controlled trial | EUCTR2004-002116-28-GB |
| Impact of Correction of Vitamin D Deficiency in Oxidative Stress in Patients With Prediabetes (VICOX) | Impact of Correction of Vitamin D Deficiency in Oxidative Stress in Patients With Impaired Glucose Tolerance: A Randomized, Double-blind, Placebo-controlled Trial | NCT03356873 |
| Prevention of Secondary Hyperparathyroidism With Vitamin D in Stage II/III Chronic Kidney Disease | Prevention of Secondary Hyperparathyroidism With Vitamin D in Stage II/III Chronic Kidney Disease | NCT00781417 |
| The Interaction Between Calcium and Vitamin D Intake | The Interaction Between Calcium and Vitamin D Intake | NCT00762775 |
| Study Comparing Two Vitamin D Supplements for Infants: Liquid Versus D-Strips | A Randomized, Open-label, Cross-over Study Comparing Two Vitamin D Supplements for Infants: Liquid Versus D-Strips. | NCT00846677 |
| Vitamin D and Calcium Study | Vitamin D and Calcium Replacement/Supplementation in Subjects With Chronic Spinal Cord Injury | NCT00857831 |
| Vitamin D Supplementation in Crohn's Patients | "Vitamin D and Crohn's Disease"" From the Bench to the Clinic" | NCT00742781 |
| Effect of vitamin D supplement on quality of life and some blood biochemical factors in women with breast pain | Vitamin D supplement on quality of life, lipid profile and C - reactive protein among women with cyclical mastalgia | IRCT2017090210327N17 |
| Vitamin D Treatment in Patients With Chronic Hepatitis C | | NCT00804752 |
| Antenatal Vitamin D Supplementation in an at risk pregnant population (dark skinned/veiled), looking at neonatal vitamin D levels in cord blood. | Maternal vitamin D supplementation during pregnancy prevents vitamin D deficiency in the newborn: an open-label randomized controlled trial | ACTRN12609000142235 |
| Vitamin D supplementation in dibetic patients | The effect of vitamin D supplementation in overweight and obese people with type 2 diabetes and lipid disorders, and vitamin D deficiency | IRCT201707252480N8 |
| Vitamin D3 for Aromatase Inhibitor Induced Arthralgias | A Randomized Trial to Evaluate the Benefit of High Dose Vitamin D3 on Aromatase Inhibitor Letrozole-Associated Musculoskeletal Symptoms and Fatigue (The VITAL Trial). | NCT00867217 |
| VItamin D effects on CardiOvascular disease Risk | Effect of one year vitamin D intervention on risk of cardiovascular disease: a randomised controlled trial at 57°N | ISRCTN20328039 |
| Evaluation of Calcium, Vitamin D, Magnesium, and Zinc Absorption in Children | Evaluation of Calcium, Vitamin D, Magnesium, and Zinc Absorption in Healthy Children 4 to 8 Years of Age | NCT00868738 |
| Vitamin D After Myocardial Infarction (MI): the DAMI study | Effects of vitamin D supplementation on markers of vascular function after myocardial infarction: a placebo controlled, double blind, parallel group, randomised controlled trial | ISRCTN32927244 |
| Effect of High-Dose Vitamin D3 in Smokers and Non-Smokers With and Without HIV | Effect of High-Dose Vitamin D3 on Alveolar Macrophage Function, LL-37, and Oxidative Stress in Smokers and Non-Smokers With and Without HIV | NCT03270709 |
| Vitamin D Supplementation and CD4 Count in HIV-Infected Children | Vitamin D Supplementation and CD4 Count in HIV-Infected Children | NCT00911664 |
| Effects of Vitamin D and Omega-3 Supplementation on Telomeres in VITAL | Effects of Vitamin D and Omega-3 Supplementation on Telomeres in VITAL | NCT04386577 |
| The effect of oral vitamin D on serum level of 25(OH) vitamin D | Comparison the effect of oral vitamin D on serum level of 25(OH) vitamin D in two groups of healthy people with vitamin D deficiency with a level more and less than 10 ng/ml | IRCT2017042433630N1 |
| A Randomized Phase IV Control Trial of Single High Dose Oral Vitamin D3 in Pediatric Patients Undergoing HSCT | A Randomized Phase IV Control Trial of Single High Dose Oral Vitamin D3 (Stoss Therapy) in Pediatric Patients Undergoing HSCT to Prevent Vitamin D Deficiency and Insufficiency During Transplant | NCT03176849 |
| The effect of Curcuminoids and Vitamin D3 oral supplementation on the improvement of glycemia and helping the treatment of Diabetic Type 2 patients. | The effect of Curcuminoids and Vitamin D3 oral supplementation on Glucagon-like peptide-1, Serum glycemic and lipid profiles, Blood pressure and Body composition in Diabetic Type 2 patients. | IRCT2017041213678N22 |
| Vitamin D Supplementation on Metabolic Syndrome Indicators Among Older Adults, Alborz Province, Iran | Vitamin D Supplementation on Metabolic Syndrome Indicators Among Food Insecure, Vitamin D Deficient Older Adults in Karaj City, Alborz Province, Iran; | NCT03193944 |
| A Randomized, Double Blind, Comparative Study Of STATUS D3Ⓡ (vitamin D3) Versus Placebo In Children Aged Between 7 And 15 Years Old to prevent infectious diseases including influenza and to improve atopic dermatitis | A Randomized, Double Blind, Comparative Study Of STATUS D3Ⓡ (vitamin D3) Versus Placebo In Children Aged Between 7 And 15 Years Old to prevent infectious diseases including influenza and to improve atopic dermatitis - Preventive Effects of Vitamin D on Infectious Diseases and Allergic conditions Trials for Children Study: PEDIATRICS | JPRN-UMIN000001373 |
| Effect of Vitamin D on liver transplant recipients post surgery | Effect of Preoperative Vitamin D Supplementation in Liver transplant recipients with Vitamin D deficiency on post transplant outcomes : A Randomised, double blind placebo-controlled Trial - NIL | CTRI/2024/12/077828 |
| The Effect of Vitamin D on Urinary Calcium Excretion in Kidney Stone Formers With High Urinary Calcium | Phase III Study of the Effect of Vitamin D Repletion on Urinary Calcium Excretion in Kidney Stone Formers With Vitamin D Deficiency and High Urinary Calcium | NCT00948740 |
| The Effect of Vitamin D on Attention Deficit Hyperactivity Disorder | The effect of vitamin D supplementation on inflammatory cytokines (Interleukin 6, Tumor Necrosis Factor alpha), Brain-derived neurotrophic factor (BDNF), Dopamine, Serotonin, Paroxonase-1 enzyme (PON-1),Total Antioxidant Capacity (TAC), 8-Isoprostane, Soluble intercellular adhesion molecule-1(sICAM-1) and Soluble vascular cell adhesion molecule-1(sVCAM-1) in school- aged children with Attention Deficit Hyperactivity Disorder | IRCT2016102324081N2 |
| Liuwei Dihuang pill combined with Calcium Carbonate and Vitamin D3 Tablets in the treatment of PMOP with 'Shen yin deficiency zhen' by Hip structure analysis | Liuwei Dihuang pill combined with Calcium Carbonate and Vitamin D3 Tablets in the treatment of PMOP with 'Shen yin deficiency zhen' by Hip structure analysis | ChiCTR-IOR-17012111 |
| Vitamin D Supplementation and Tibia Fracture. Does it Improve Healing Rate? | Vitamin D Supplementation in Patients With Operated Tibia Fracture and Low Vitamin D. Does it Improve Healing Rate?. Randomized Controlled Trial | NCT03232216 |
| Vitamin D Versus Placebo in the Treatment of Vague Musculoskeletal Pain in Children | Vitamin D vs Placebo in the Treatment of Vague Musculoskeletal Pain in Children | NCT00944606 |
| Repletion of vitamin D levels using an oral spray vs capsule supplement among individuals who are deficient | Repletion rate of circulating 25-hydroxyvitamin D following sublingual and capsular vitamin D supplementation among individuals with sub-optimal vitamin D status | ISRCTN13778806 |
| Intervention study on oral administration of high-dose vitamin D for the treatment of overactive bladder in children | Intervention study on oral administration of high-dose vitamin D for the treatment of overactive bladder in children | ChiCTR2400093723 |
| Investigating the effectiveness of vitamin D on the amount of erythropoietin required in dialysis patients | Studying the effect of vitamin d supplementation on erythropoietin utilization in hemodialysis patients | IRCT20241027063513N1 |
| Vitamin D and Selenium in Type 2 Diabetes | The Effects of Vitamin D and Selenium Supplementation, Alone and in Combination, on Glycemic Indices, Inflammatory Markers, Adipokines, and Metabolic Parameters in Patients with Type 2 Diabetes | IRCT20180712040438N9 |
| Comparison of the high dose and conventional regimen of vitamin D effect on antioxidant markers of patients with diabetic foot ulcer | Comparison of the high dose and conventional regimen of vitamin D effect on antioxidant markers of patients with diabetic foot ulcer | IRCT20241215064055N1 |
| Relation of periodontal inflammation with the effect of vitamin d supplement and low level laser therapy as addition to scaling and root planing in peridontitis patients with type 2 diabetes mellitus and vitamin d insufficiency | Correlation of periodontal inflamed surface area with the effect of vitamin d supplement and low level laser therapy as an adjunct to scaling and root planing in periodontitis patients with type 2 diabetes mellitus and vitamin d insufficiency - a randomized controlled clinical trial - NIL | CTRI/2024/12/078709 |
| The effect of resistance training with calcium plus vitamin D supplementation on the level of growth factor beta 1(TGF-ß1) and high-sensitive C reactive protein (hs-CRP) | The effect of a course of resistance training with calcium plus vitamin D supplementation on the level of growth factor beta 1(TGF-ß1) and high-sensitive C reactive protein (hs-CRP) | IRCT20220322054338N2 |
| Investigating the effect of vitamin D deficiency correction on the number and intensity of vertigo attacks in patients with Meniere's disease | Investigating the effect of vitamin D deficiency correction on the quantity and intensity of vertigo attacks in patients with Meniere's disease in Imam Reza and Qaem Hospitals | IRCT20230312057693N1 |
| Clinical and Radiographic Evaluation of Topical Vitamin D on Immediate Dental Implants | Clinical and Radiographic Evaluation of Topical Vitamin D Application on Immediate Dental Implants: a Randomized Clinical Trial | NCT06806423 |
| Evaluation of the role of vitamin d in reducing the severity and duration of hospitalization of rotavirus infection in Iraqi children | Comparison of the Effectiveness of adding vitamin d with standard treatment in reducing the severity and duration of hospitalization of rotavirus infection in Iraqi children | IRCT20250115064393N1 |
| Investigating effect of vitamin D on bruxism | Investigation of the effect of vitamin D serum level correction on the severity of bruxism | IRCT20250103064267N1 |
| Does taking vitamin D3 before esophageal surgery reduce the risk of lung complications? | The association between preoperative single high-dose vitamin D3 supplementation and ARDS (Acute respiratory distress syndrome) incidence in patients after esophageal resection for carcinoma- a randomised, placebo-controlled trial (ESOVID) | ISRCTN15385525 |
| Immediate Implant Placement Using Xenograft Mixed with Vitamin D Versus Hyaluronic Acid. | Immediate Implant Placement Using Xenograft As Space Filling Material Mixed with Vitamin D Versus Hyaluronic Acid in Posterior Mandible Region: a Randomized Controlled Clinical Trial. | NCT06842368 |
| Efficacy Comparison of Weekly versus Daily Vitamin D Supplement in Healthy Infants | Efficacy Comparison of Weekly versus Daily Vitamin D Supplement in Healthy Infants | TCTR20250204006 |
| Assess the effect of Monthly versus daily vitamin D supplementation in children with chronic kidney disease stages 3 to 5 on vitamin d level and bone health markers | Intermittent versus daily vitamin D supplementation in children with chronic kidney disease stages 3 to 5 – A Non-Inferiority Trial - NIL | CTRI/2024/12/077994 |
| Effects of Vitamin D Supplementation During a Non-surgical Treatment of Generalized Chronic Periodontitis | Effects of Vitamin D Supplementation During a Non-surgical Treatment of Generalized Chronic Periodontitis: A Randomized Double-blinded Placebo Controlled Clinical Trial | NCT03162406 |
| High Dose Interval Vitamin D Supplementation in Patients With IBD Receiving Remicade | High Dose Interval Vitamin D Supplementation in Patients With IBD Receiving Remicade | NCT03162432 |
| Effect of Vitamin D3 on Vascular Function | The Effect of Cholecalciferol (Vitamin D3) on Vascular Function and Cardiovascular Risk Factors | NCT00948298 |
| Vitamin D Supplementation and Pregnancy Outcomes | Evaluation and Comparison of the Efficacy of 1000 and 2000 IU/d Vitamin D Supplementation During Pregnancy on Maternal and Newborn Vitamin D Status and Pregnancy Outcomes | NCT03308487 |
| High Dose Cholecalciferol to Reduce the Incidence of Gestational Diabetes in High Risk Pregnant Women | A Randomized Single-Center Study of the Effects of High-Dose Cholecalciferol to Reduce the Incidence of Gestational Diabetes in High-Risk Pregnant Women | NCT03037593 |
| The effect of vitamin D supplementation in the prevention of recurrence of preeclampsia in pregnant women with a history of preeclampsia | The effect of vitamin D supplementation in the prevention of recurrence of preeclampsia in pregnant women with a history of preeclampsia | IRCT2017010131695N1 |
| The effects of Vitamin D supplementation on ADHD symptoms and antioxidant capacity in Students 6-13 years old whit ADHD | Assessment of the efficacy of Vitamin D supplementation comparing to placebo on antioxidant capacity and symptoms ADHD in Students 6-13 years old whit ADHD | IRCT2016120331212N1 |
| Vitamin D efficacy on COPD | Effectiveness of Vitamin D Supplementation in Quality of Life of patient with severe and very severe Chronic Obstructive Pulmonary Disease with serum levels of Vitamin D less than 20ng/ml compared with the control group | IRCT2017021030705N1 |
| Immunmodulating and clinical effect of vitamin D onthe induction of remission in the patients with moderate to severe ulcerative colitis under the treatment with Infliximab. | Immunmodulating and clinical effect of vitamin D onthe induction of remission in the patients with moderate to severe ulcerative colitis under the treatment with Infliximab. | EUCTR2009-015649-21-NO |
| Vitamin D Supplementation for the Prevention of Acute Respiratory Tract Infections | Vitamin D Supplementation for the Prevention of Acute Respiratory Tract Infections; a Randomized Double-blinded Trial in Young Finnish Men | NCT00973583 |
| The effect of niacin on sodium, phosphorus, parathyroid hormone (PTH) and vitamin D levels | The effect of niacin on sodium, phosphorus, parathyroid hormone (PTH) and vitamin D levels in hemodialysis patients | IRCT20190702044076N2 |
| effect of vitamin D in treatment of men with sexual dysfunction | The effect of vitamin D in treatment of men with sexual dysfunction | IRCT201612252342N5 |
| A targeted community program of vitamin D treatment to reduce hospital admissions for falls, fractures and other disorders | A randomised controlled placebo-controlled study to evaluate the effects of vitamin D treatment on reducing hospital admissions for falls, fractures and other disorders in elderly women | ACTRN12609000748213 |
| Vitamin D to Improve Outcomes by Leveraging Early Treatment | Vitamin D to Improve Outcomes by Leveraging Early Treatment | NCT03096314 |
| Vitamin D supplementation for the treatment of non alcoholic fatty liver disease: a randomized double blind placebo controlled trial | Vitamin D supplementation for the treatment of non alcoholic fatty liver disease: a randomized double blind placebo controlled trial | IRCT201612077732N2 |
| Add on therapy of Vitamin D3 sublingual tablets for treatment of Hypertension | Utility of sublingual vitamin D3 as an add on therapy in patients of hypertension- A open label non-randomized trial | CTRI/2017/03/008033 |
| Effect of aerobic exercise and 25 hydroxy vitamin D supplementation on type 2 diabetes | Effect of aerobic exercise and 25 hydroxy vitamin D supplementation on ratio of GLP1 and DPP4 and Insulin resistance In men with type 2 diabetes | IRCT2017010315812N3 |
| Evaluating the effect of vitamin D3 supplementation on anxiety, depression, sleep quality, physical morbidity and oxidative stress in university students | Evaluating the effect of vitamin D3 supplementation on anxiety, depression, sleep quality, physical morbidity and oxidative stress in university students | IRCT201703076026N5 |
| A pilot study to investigate vitamin D status and its associations with dietary vitamin D intake, sunlight exposure and selected health outcomes in peritoneal dialysis and hemodialysis patients attending the Royal Brisbane and Women's Hospital renal unit. | A pilot study to investigate vitamin D status and its associations with dietary vitamin D intake, sunlight exposure, kidney disease, bone disease, inflammation, metabolic syndrome and quality of life in peritoneal dialysis and hemodialysis patients. | ACTRN12609000720213 |
| Effect of Vitamin D3 Supplementation in Pregnancy on Risk of Pre-eclampsia | Effect of Antenatal Vitamin D3 Supplementation on Risk of Pre-eclampsia | NCT03101150 |
| Vitamin D and Genetics in Nutritional Rickets | Vitamin D and Genetics in Nutritional Rickets | NCT00949832 |
| Role of Vitamin D Supplementation in Schizophrenia | Role of Vitamin D Supplementation in First Episode Schizophrenia: A Double Blind Controlled Study | NCT03101319 |
| Vitamin D Supplementation and Immunity/Physical Performance | The Effect of Vitamin D Supplementation on Vitamin D Status, Immunity and Physical Performance | NCT03132103 |
| The effect of vitamin D on chronic obstructive pulmonary disease | A randomized clinical trial to compare the effect of vitamin D and placebo on FEV1 in patients with chronic obstructive pulmonary disease | IRCT201610306312N3 |
| The Effect of Oral Vitamin D3 Supplementation on Spermogram Quantitative and Qualitative Indicators in Infertile Male | The Effect of Oral Vitamin D3 Supplementation on Spermogram Quantitative and Qualitative Indicators in Infertile Male | IRCT2016111830947N1 |
| Evaluating the effect of vitamin D3 supplementation on bone infection treatment and on sleep quality, anxiety and depression in patients with bone infection | Evaluating the effect of vitamin D3 supplementation on chronic osteomyelitis treatment and on sleep quality, anxiety and depression in patients with chronic osteomyelitis | IRCT201609026026N4 |
| Vitamin D Supplementation for Treatment of Dyslipidemia | Vitamin D Supplementation for Reduction of Dyslipidemia in Premenopausal Women | NCT03133975 |
| Vitamin D, Hashimato's Thyroiditis and Thyroid Functions | The Relationship Between Vitamin D Levels, Thyroid Functions, and Thyroid Autoimmunity | NCT06726967 |
| Effectiveness of vitamin D in patients with schizophrenia | Role of vitamin D supplementation in first episode schizophrenia: A double blind placebo controlled study | CTRI/2017/05/008459 |
| High versus low dose Vitamin D3 in severe Systemic Lupus Erythematosus on Pulse Methylprednisolone: a randomized, double blind, placebo controlled clinical trial | Assessment of Vitamin D supplementation in patients with Systemic Lupus Erythematosus admitted to the rheumatology ward | RBR-10t8m6m2 |
| Nutritional Supplementation in children with Type 1 Diabetes Mellitus | A randomized control trial of calcium and vitamin D supplementation, or Vitamin D in combination with Zinc or milk to improve bone health status of children and adolescents with type 1 Diabetes Mellitus. | CTRI/2017/08/009522 |
| A Prospective, Single-centre, Open-label Study to Confirm the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D Deficiency | A Prospective, Single-centre, Open-label Study to Confirm the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D Deficiency | NCT03233295 |
| TO STUDY EFFECT OF VITAMIN D IN PAIN PHYSICAL FUNCTION AND FEMORAL CARTILAGE REGENERATION IN KNEE OSTEOARTHRITIC PATIENTS | TO STUDY THE CLINICORADIOLOGICAL EFFECT OF VITAMIN D IN TREATMENT OF OSTEOARTHIRITIS OF THE KNEE | CTRI/2025/06/088096 |
| Impact of vitamin D status on risk of cardiovascular disease. | Impact of vitamin D status on risk of cardiovascular disease in healthy adults. | ACTRN12609000584235 |
| Vitamin D and Hypertensive Disorders of Pregnancy | The Relationship Among Vitamin Deficiency/Insufficiency, Vitamin Supplementation, and Hypertensive Disorders of Pregnancy | NCT07017920 |
| Effect of Vitamin D on balance performance in elderly fallers. | Effect of Vitamin D on balance performance in elderly fallers. A double blind randomised control trial. | ACTRN12609000503224 |
| Efect Supplementation Vitamin D in Diabetes Mellitus Type 2 | Effect Supplementation Vitamin D on HbA1c, Insulin, HOMA-IR and VCAM-1 in Diabetes Mellitus Type 2 | NCT07019415 |
| To investigate the impact of vitamin D supplements on complications and duration of stay in patients in need of immediate abdominal surgery | Effect of Vitamin D Supplementation on Pro-inflammatory, Anti-inflammatory Markers and Perioperative outcomes in Patients Undergoing Emergency LAParotomy (VD-LAP): A Randomized Controlled Pilot Study. - VD-LAP | CTRI/2025/06/088304 |
| The effects of calcium, vitamin D supplementation on falls and bone health in Chinese postmenopausal women | The effects of calcium, vitamin D supplementation on falls and bone health in Chinese postmenopausal women | ChiCTR-PRC-09000518 |
| Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART) | Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART) | NCT00920621 |
| Optimal Dose of Vitamin D Supplement for Pregnant Women with Hypovitaminosis D: A Randomized Controlled Trial | Optimal Dose of Vitamin D Supplement for Pregnant Women with Hypovitaminosis D: A Randomized Controlled Trial | TCTR20250614004 |
| Impact of Vitamin D Supplementation on Host Immunity to Mycobacterium Tuberculosis and Response to Treatment | Impact of Vitamin D Supplementation on Host Immunity to Mycobacterium Tuberculosis and Response to Treatment: Building Translational Research Capacity in Nutrition and Infectious Diseases in the Republic of Georgia | NCT00918086 |
| Effect of Supplemental Vitamin D on Skeletal Muscle Function in Chronic Obstructive Pulmonary Disease (COPD) Patients | Effect of Supplemental Vitamin D on Skeletal Muscle Function in COPD Patients. | NCT00914810 |
| Effect of multivitamin on serum 25-hydroxy vitamin D level in postmenopausal women: A randomized, double-blind, placebo-controlled trial | Effect of multivitamin on serum 25-hydroxy vitamin D level in postmenopausal women: A randomized, double-blind, placebo-controlled trial | TCTR20131206001 |
| Impact of Vitamin D Insufficiency and Type II Diabetes Mellitus on Periapical Lesions: A Comparative Study | Prevalence and periapical healing outcome in patients with Vitamin D insufficiency, Type II Diabetes mellitus or both: a comparative study - NIL | CTRI/2025/05/087830 |
| Does vitamin D deficiency contribute to fatigue in patients in remission after treatment of gynaecological malignancy? - VItamine D Influence on FATigue In gynaecological MAlignancy (VIDIFATIMA- trial) | Does vitamin D deficiency contribute to fatigue in patients in remission after treatment of gynaecological malignancy? - VItamine D Influence on FATigue In gynaecological MAlignancy (VIDIFATIMA- trial) | EUCTR2009-012300-69-NL |
| Vitamin D for the Treatment of Women With Polycystic Ovary Syndrome (PCOS) | Vitamin D Supplementation in Polycystic Ovary Syndrome: a Randomized Controlled Trial. | NCT00907153 |
| The effect of vitamin D-supplementation on glucose metabolism in non-western immigrants in the Netherlands. | The effect of vitamin D-supplementation on insulin sensitivity in non-western immigrants in the Netherlands. | NL-OMON26914 |
| Ph I/II of Vitamin D on Bone Mineral Density & Markers of Bone Resorption | A Phase I/II Randomized, Double-blind, Controlled Study to Evaluate Efficacy and Safety of Vitamin D on Bone Mineral Density and Markers of Bone Resorption in Aromatase Inhibitor-induced Bone Loss in Women With Breast Cancer. | NCT00904423 |
| An Imaging Sub-Study of the Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of Odanacatib (MK-0822) to Reduce the Risk of Fracture in Osteoporotic Postmenopausal Women Treated With Vitamin D and Calcium - The Imaging Sub-study for the Fracture Trial | An Imaging Sub-Study of the Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of Odanacatib (MK-0822) to Reduce the Risk of Fracture in Osteoporotic Postmenopausal Women Treated With Vitamin D and Calcium - The Imaging Sub-study for the Fracture Trial | EUCTR2008-004578-42-DK |
| Effect of 25-hydroxy vitamin D on inflammation and bone-turnover in critically ill patients | Effect of 25-hydroxy vitamin D on inflammation and bone-turnover in critically ill patients: a blinded, prospective, randomised, controlled, parallel group trial | ISRCTN24385496 |
| Blue Sky Study: Impact of Milk and Vitamin D for Child Growth and Health | Blue Sky Study: Impact of Milk and Vitamin D for Child Growth and Health | NCT00886379 |
| Comparison of 25-hydroxy Vitamin D Level in Caucasian Women Receiving Vitamin D Supplementation and Not Receiving Supplementation: a Randomized Controlled Trial. | Comparison of 25-hydroxy Vitamin D Level in Caucasian Women Receiving Vitamin D Supplementation and Not Receiving Supplementation: a Randomized Controlled Trial. | NCT00882505 |
| Vitamin D, Chronic Kidney Disease (CKD) and the Microcirculation | The Effect of Vitamin D on the Microcirculation of Patients With Chronic Kidney Disease (CKD) and Vitamin D Deficiency | NCT00882401 |
| Vitamin D Supplementation in Childhood Atopic Dermatitis | Randomized Trial of Vitamin D Supplementation in Winter-related, Childhood Atopic Dermatitis | NCT00879424 |
| Effect of Vitamin D Supplementation on Fasting Glucose and Interleukin-10 (IL-10) in Arab Women With Impaired Fasting Glucose | Prospective, Randomized, Double Blind Placebo Controled Clinical Trial to Assess the Effect of Vitamin D Supplementation on Fasting Glucose and IL-10 in Arab Women With Impaired Fasting Glucose. | NCT00877123 |
| Vitamin D in Minorities With Prediabetes | Effect of Vitamin D Supplementation on Pre-Diabetes in a Minority Population | NCT00876928 |
| Thiazolidinedione Intervention With Vitamin D Evaluation | AVANDIA CV Outcomes Study: Thiazolidinedione Intervention With Vitamin D Evaluation (TIDE) A Multicenter Randomized Double-Blind Placebo-Controlled Trial of a Thiazolidinedione or Placebo and of Vitamin D or Placebo In People With Type 2 Diabetes at Risk For Cardiovascular Disease | NCT00879970 |
| Comparison of effect of oral nano vitamin D3 versus placebo to reduce disease activity in patients suffering from ulcerative colitis. | A double blind randomized control trial to study the effect of oral 25-hydroxy vitamin D versus placebo in addition to standard therapy in patients with active ulcerative colitis on clinical/endoscopic response and markers of mucosal inflammation. | CTRI/2017/08/009232 |
| Impact of Sarcopenia together with vitamin D insufficiency to undesirable postoperative cardiac surgery outcomes in Age greater than or equal to 55 years | Impact of Sarcopenia together with vitamin D insufficiency to undesirable postoperative cardiac surgery outcomes in Age equal to or more than 55 years | TCTR20250528006 |
| This study looks at people who had their thyroid removed and low parathyroid hormone levels after surgery. It compares giving calcium and vitamin D supplements to everyone right away versus only to those with symptoms, aiming to find which approach better supports recovery and hormone balance. | Effect of calcium and vitamin D supplementation routinely vs exclusively in symptomatic patient on postoperative parathyroid hormone levels in total thyroidectomy patients with low parathyroid hormone level post operatively-An Open-Label Randomized Controlled Trial - nil | CTRI/2025/05/087585 |
| Influence of Vitamin D supplementation on the Success of Dental Implants placed in Diabetic Subjects | Effect of Vitamin D supplementation on dental implant stability, bone implant contact and bone morphology in diabetic and non-diabetic patients with Vitamin D deficiency and healthy patients in Bangalore- A Controlled Clinical Trial - NIL | CTRI/2025/05/087645 |
| Effect of Vitamin D Deficiency on the Structure of Titanium Platelet-Rich Fibrin | Effect of Vitamin D Deficiency on the Structure of Titanium Platelet-Rich Fibrin(T-Prf) | NCT06870786 |
| Efficacy and Safety of Short-Term High-Dose Vitamin D Supplementation Combined with Standard Behavioral Therapy in the Treatment of Pediatric Idiopathic Detrusor Overactivity: A Prospective, Randomized, Multicenter Clinical Trial | Efficacy and Safety of Short-Term High-Dose Vitamin D Supplementation Combined with Standard Behavioral Therapy in the Treatment of Pediatric Idiopathic Detrusor Overactivity: A Prospective, Randomized, Multicenter Clinical Trial | ChiCTR2500098026 |
| The Correlation between Serum Vitamin D with Apo B and Framingham Risk Score among a Group of Iraqi Subjects: A Cross-sectional and Prospective Pilot Study | Severe Vitamin D correction and prospective measurements of serum Apolipoprotein B and FRS | TCTR20250301003 |
| Evaluation of the influence of vitamin D level on the success rate of dental Implants. A multi-center clinical trial. | Evaluation of the influence of vitamin D level on the success rate of dental Implants. A multi-center clinical trial. - Vit. D-ITI-Study | DRKS00036216 |
| Calcium for dental health in children with cerebral palsy | Comparison of efficacy of oral calcium and vitamin D3 supplementation in improving dental health in children with cerebral palsy: a open labeled randomized controlled trial - Nil | CTRI/2025/03/082689 |
| Comparing effect of two different prophylactic Vitamin D dosage on Bone Health in a child with Nephrotic Syndrome (1st Episode) | To compare the effect of two prophylactic Vitamin D regimen on Bone mineral health in Children with first episode Nephrotic syndrome - Open labelled Randomized controlled trial - NIL | CTRI/2025/03/082823 |
| Clinical Efficacy of Vitamin D in Patients with Ratator Cuff Injury and Vitamin D Deficiency: A Randomized Controlled Trial. | Clinical Efficacy of Vitamin D in Patients with Ratator Cuff Injury and Vitamin D Deficiency: A Randomized Controlled Trial. | ChiCTR2500099477 |
| Neurosonographic Findings in Pregnant Women with Vitamin D Deficiency | Evaluation of Neurosonographic Findings in Pregnant Women with Vitamin D Deficiency | NCT06903247 |
| We will assess the efficacy of vitamin D supplementation in reducing severity, frequency and duration of migraine headache attacks. | Efficacy of vitamin D supplementation in severe migraine: a Randomised Control Trial - NIL | CTRI/2025/03/083141 |
| Vitamin D Supplementation in the Management of Essential Hypertension Among Patients with Vitamin D Deficiency | Vitamin D Supplementation Versus Standard Treatment in the Management of Essential Hypertension Among Patients with Vitamin D Deficiency: A Randomised Controlled Trial - NIL | CTRI/2025/03/083498 |
| Effect of a Protein-Creatine-Omega3-Vitamin D Supplement on Glycemic Variability in Mexican Patients With Type 2 Diabetes | Effect of a Combined Whey Protein, Creatine, Omega-3, and Vitamin D Supplement on Glycemic Variability in Mexican Patients With Recently Diagnosed Type 2 Diabetes: A Randomized, Double-blind Trial Using Continuous Glucose Monitoring | NCT06920667 |
| Impact of Vitamin D Supplements on Mental Health and Milk Composition in Mothers Living in Idaho | Effects of Maternal Stress on Human Milk Composition and Subsequent Infant Outcomes | NCT06919718 |
| Efficacy and Safety of Short-Term High-Dose Vitamin D Supplementation Combined with Enuresis Alarms for Treating Primary Nocturnal Enuresis in Children: A Prospective, Randomized, Controlled, Single-Center Clinical Trial | Efficacy and Safety of Short-Term High-Dose Vitamin D Supplementation Combined with Enuresis Alarms for Treating Primary Nocturnal Enuresis in Children: A Prospective, Randomized, Controlled, Single-Center Clinical Trial | ChiCTR2500100186 |
| A Trial to See the Effect of Three Drugs Vitamin D, Verapamil, and Lansoprazole on Cells That Secrete Insulin in Patients With Newly Diagnosed Type 1 Diabetes | Effect of vitamin D, verapamil, and lansoprazole on residual beta-cell function in children with newly diagnosed type 1 diabetes:-an open label randomised controlled pilot trial - NIL | CTRI/2025/04/084335 |
| A prospective cohort study on the effect of calcium and vitamin D supplementation on height and bone health of children aged 2-12 years in Shenyang | A prospective cohort study on the effect of calcium and vitamin D supplementation on height and bone health of children aged 2-12 years in Shenyang | ChiCTR2500100925 |
| Vitamin D supplementation role on the metabolic dysfunction in women with polycystic ovarian syndrome | Role of Vitamin D supplementation on the metabolic dysfunction in women with polycystic ovarian syndrome- A Randomised controlled trial - NIL | CTRI/2025/04/085214 |
| Comparison of two different drugs in treatment of vertigo caused by BPPV, along with supplementation of vitamin D. | Head - to - head comparison of betahistine and meclizine, alone and with vitamin D supplementation in the management of BPPV: mutli-arm , double blind , randomized controlled trial. - nil | CTRI/2025/04/085346 |
| The Effect of Vitamin D Supplement as Adjuvant Therapy in Eradication of Helicobacter Pylori Infection | The Effect of Vitamin D Supplement as Adjuvant Therapy in Eradication of Helicobacter Pylori Infection | NCT06964334 |
| The Role of Vitamin D3 in stroke patients | The effect of Intravenous Vitamin D3 on clinical outcome of stroke patients in ICU- a prospective randomised double blind study - nil | CTRI/2025/05/086335 |
| Effect of Vitamin D Supplementation in People with Dry Eyes having associated Vitamin D Deficiency | To Study the Therapeutic response of Oral Vitamin D Supplementation in Patients with Dry Eye Disease with concomitant Vitamin D Deficiency: A Quasi-experimental study in a Tertiary Care Setting in Central India - NIL | CTRI/2025/05/086333 |
| Pregnancy Maternal Serum Vitamin D Levels & Risk of Pre-eclampsia : A Case Control Pilot Study in Kenya. | Pregnancy Maternal Serum Vitamin D Levels & Risk of Pre-eclampsia : A Case Control Pilot Study in Kenya. | PACTR202505516303679 |
| Intervention study on bone metabolism supplementation of Calcium and Vitamin D in Patients with epilepsy | Intervention study on bone metabolism supplementation of Calcium and Vitamin D in Patients with epilepsy | ChiCTR2500102296 |
| Effect of Vitamin D Supplementation on the Rehabilitation of Patients After Rotator Cuff Tear Repair | Effect of Vitamin D Supplementation on the Rehabilitation of Patients After Rotator Cuff Tear Repair: a Double-blind Randomized Controlled Trial | NCT06984068 |
| Study Comparing Laser Treatment and Vitamin D Injections for Keloid Scar Reduction | EFFICACY OF Q SWITCHED Nd YAG LASER VERSUS INTRALESIONAL VITAMIN D INJECTION IN THE TREATMENT OF KELOIDS A COMPARATIVE STUDY - NIL | CTRI/2025/05/087116 |
| Clinical Efficacy of Plasma Activated Dental Implants in Individuals with Vitamin D Deficiency/Insufficiency - A Randomized Controlled Clinical Trial | Clinical Efficacy of Plasma Activated Dental Implants in Individuals with Vitamin D Deficiency/Insufficiency - A Randomized Controlled Clinical Trial - NIL | CTRI/2025/05/087428 |
| Effects of Vitamin D3 and Yeast Beta-Glucan Supplementation on Cardiovascular Disease in Patients with Type 2 Diabetes | Effects of Vitamin D3 and Yeast Beta-Glucan Supplementation on Cardiovascular Disease in Patients with Type 2 Diabetes: a Randomized Double-Blind Controlled Trial | NCT06861062 |
| Comparing bioequivalence of oral cholecalciferol and ergocalciferol treatment for 3 months in Australian hip fracture cases | A three month prospective study of elderly australian hip fracture patients treated with ergocalciferol compared with cholecalciferol therapy: The vitamin D outcome study | ACTRN12608000381381 |
| Effect of supplementation in treatment of women with polycystic ovary syndrome | Clinical trial of the effect of combined vitamin D, K and calcium supplementation compared with the placebo on metabolic profiles in women with polycystic ovary syndrome | IRCT201608115623N87 |
| hCAP18 Levels and Vitamin D Deficiency in Healthy Subjects | hCAP18 Levels and Vitamin D Deficiency in Healthy Subjects | NCT00742235 |
| Effects of Vitamin C, Vitamin D3, Coenzyme Q10 and antioxidant formula of different supplement forms on micronutrient, biomarker blood levels and quality of life | Effects of Vitamin C, Vitamin D3, Coenzyme Q10 and antioxidant formula of different supplement forms on micronutrient, biomarker blood levels and quality of life. | TCTR20190205002 |
| Role of AHT#1 food supplement in symptom control of IBS-D | Role of AHT#1 (curcumin/green tea/vitamin D) food supplement on symptom control in diarrhoea-predominant irritable bowel syndrome (IBS-D) as assessed by the IBS Severity Scoring System (IBS-SSS) | ISRCTN15346028 |
| Acute Effect of Vitamin D3 Supplementation | Acute Effect of Vitamin D3 Supplementation on Serum 25(OH)D | NCT03849833 |
| Retrospective recording of the frequency of vitamin D deficiency in the older patient | Retrospective recording of the frequency of vitamin D deficiency in the older patient - VitD_geri | DRKS00017103 |
| Effects of vitamin D therapy on composition and cardiovascular risk factors in patients with Type 2 diabetes mellitus | The correlation between vitamin D level and diabetic macroangiopathy, is vitamin D therapy useful? | ChiCTR1900022515 |
| Effects of Smoking and Vitamin D3 on the Levels of Human Cathelicidin Peptide LL-37 | Evaluation of Gingival Crevicular Fluid Levels of LL-37 and Serum Vitamin D3 Levels in Smoker and Non-Smoker Patients With Chronic Periodontitis | NCT03923218 |
| Effects of Vitamin D3 Supplementation on Antioxidant Enzymes Status in Vitamin D3 Deficient Asthma COPD Overlap (ACO) Patients | Effects of Vitamin D3 Supplementation on Antioxidant Enzymes Status in Vitamin D3 Deficient Asthma COPD Overlap (ACO) Patients | NCT03931889 |
| Triamcinolone With Vitamin D Synergistic Efficacy in Psoriasis | Triamcinolone With Vitamin D Synergistic Efficacy in Psoriasis | NCT04036188 |
| Vitamin D Supplementation in the Armed Forces | Effectiveness of Vitamin D Supplementation to Reduce Injury and Illness in the UK Armed Forces With Specific Reference to Stress Fracture Risk Reduction | NCT03963128 |
| Vitamin D/K in COPD | Randomized controlled trial to assess the effect of vitamin D plus K supplementation on the rate of elastin degradation in COPD | NL-OMON26885 |
| Comparison of 2 different doses of Vitamin D to improve bone strength in disease of progressive muscle weakness named DMD. | Comparison of supplementation with two different doses of vitamin D on bone mineral density in patients with Duchenne muscular dystrophy- A randomised double blind control trial. | CTRI/2019/06/019543 |
| Daily Versus Bolus Oral Vitamin D3 For Treatment Of Rickets In Children. | Daily Versus Depot Oral Vitamin D3 For Treating Nutritional Rickets. | CTRI/2018/12/016760 |
| The Vitamin D in Pediatric Crohn's Disease ( ViDiPeC-2 ) | A Pragmatic Randomized Controlled Trial on High Dose Vitamin D to Prevent Relapses of Crohn's Disease in Children | NCT03999580 |
| Effect of Vitamin d and Omega 3 on Osteocalcin | Assessing the Combined Effect of Omega-3 Fatty Acid and Vitamin D3 on Plasma Osteocalcin Levels : a Randomized Controlled Trial in Males and Females With Vitamin D Deficiency | NCT04005612 |
| Vitamin D3 injection in warts. | Intralesional Vitamin D3 - An Immunotherapy in cutaneous warts. | CTRI/2019/07/020453 |
| Effect of vitamin D in severe traumatic brain injury | Comparison of the efficacy of high and low doses vitamin D supplementation on serum levels of inflammatory factors and mortality in patients with severe head trauma. | IRCT20180619040151N3 |
| The effect of aerobic training and vitamin D supplementation on diabetes indices | The effect of aerobic training with vitamin D supplementation on insulin, Glycosylated hemoglobin, nuclear factor of kappa in type 2 diabetic women | IRCT20140512017675N2 |
| A Novel Method to Deliver Antibiotics directly to the Open Wounds in diabetic Patients | A single-centric unblinded pilot project to assess the efficacy of local antibiotic delivery using Vitamin D3 granules for complete healing of foot ulcers among diabetic patients | CTRI/2019/08/020819 |
| Vitamin D Deficiency and Effect of Its Supplementation on Interstitial Lung Diseases(ILD). | Vitamin D Deficiency in Interstitial Lung Diseases | NCT04100226 |
| Daily Vitamin D for Sickle-cell Respiratory Complications | Daily Vitamin D for Sickle-cell Respiratory Complications | NCT04170348 |
| Vitamin D and Prebiotics for Intestinal Health in Cystic Fibrosis | Vitamin D and Prebiotics for Intestinal Health in Cystic Fibrosis | NCT04118010 |
| Effect of vitamin D on the recurrence of uterine fibroids | Effect of vitamin D on the recurrence rate of uterine fibroid | IRCT20150909023949N3 |
| A Study to Investigate the Effect of Vitamin D3 Supplementation on Asthma Symptoms in Adults With Asthma (VITDAS) | A Daily 5000 IU Vitamin D Supplement for the Improvement of Lung Function and Asthma Control in Adults With Asthma: a Randomised Controlled Trial | NCT04117581 |
| Application of vitamin D3 in the treatment of dry eye syndrome after FS-lasik | Application of vitamin D3 in the treatment of dry eye syndrome after FS-lasik | ChiCTR1900026563 |
| The Effect of Calcium and Vitamin D Supplements on Metabolic and Hormonal Disturbances in Polycystic Ovary Syndrome Patients | The Effect of Calcium and Vitamin D Supplements as an Adjuvant Therapy to Metformin on Metabolic and Hormonal Disturbances in Polycystic Ovary Syndrome Patients | NCT03792984 |
| 15-month longitudinal study of dietary and sunlight influences on vitamin D status in a well-characterised population of postmenopausal women at 57ºN | | ISRCTN96210443 |
| Vitamin D treatment in allergic skin rashes | Therapeutic Effect of Single Dose Vitamin D3 in Childhood Atopic Dermatitis â?? A Prospective Clinical Trial. | CTRI/2018/07/014727 |
| An investigation of the effect of vitamin D supplementation on insulin resistance and bone health in South Asian women | The effect of vitamin D supplementation on insulin resistance and bone markers in South Asian women with hypovitaminosis D and raised insulin resistance (HOMA-IR) | ACTRN12607000642482 |
| Longitudinal Effect of Vitamin D3 Replacement on Cognitive Performance and MRI Markers in Multiple Sclerosis Patients | Longitudinal Effect of Vitamin D3 Replacement on Cognitive Performance and MRI Markers in Multiple Sclerosis Patients: A Single-Blind Randomized Clinical Trial | NCT03610139 |
| """Effect of Supplementation in combination with diet therapy in treatment of polycystic ovary syndrome""" | The effect of vitamin D supplementation on anthropometric indices and Leptin serum level in women with polycystic ovary syndrome treated with low calorie diet | IRCT20120913010826N30 |
| Effect of Vitamin D on Management of Attention Deficit Hyperactivity Disorder | The Effect of Vitamin D Supplementation on Superoxide Dismutase Antioxidant Enzyme and Inflammatory Factors in Students 6-13 Years of Age with Attention Deficit Hyperactivity Disorder (ADHD) | IRCT20161104030698N1 |
| Vitamin D status of children suffering from nutritional Rickets after treatment. | Effect of weekly supplementation of oral 2000IU v/s 4000IU vitamin D3 on 25(OH)D levels,12 weeks after administration of oral 3 lakhs IU vitamin D3 in nutritional rickets.A randomized double blind study. | CTRI/2018/08/015179 |
| Effect of Suplementation of Vitamin D in Gestational Diabetes Mellitus | Effect of Suplementation of 5,000 UI Vitamin D3 on the Glycemic Profile in Patients With Gestational Diabetes Mellitus of the Hospital Civil de Guadalajara Dr. Juan I. Menchaca | NCT03645109 |
| Vitamin D and Arterial Stiffness in Elderly | Treating Vitamin D Insufficiency in Community Dwelling Elderly to Improve Arterial Stiffness | NCT03649802 |
| The Influence of Food Matrix Delivery System on the Bioavailability of Vitamin D3 | The Influence of Food Matrix Delivery System on the Bioavailability of Vitamin D3 | NCT03783273 |
| Vitamin D Oral Replacement in Asthma | Vitamin D Oral Replacement in Asthma | NCT03686150 |
| PK/PD of Vitamin D3 in Adults With CF | A Pilot Study Evaluating Single, High-dose Pharmacokinetics/Pharmacodynamics of Vitamin D3 in CF | NCT03734744 |
| Effect of vitamin D on maintaining immunity level in HIV patients | Assessing the effect of vitamin D on the CD4 count and some blood indices in Human Immunodeficiency Virus (HIV) patients | IRCT20180926041146N1 |
| Effect of alendronate and vitamin D on selected bone turnover markers in women with postmenopausal osteoporosis and a high fracture risk; a randomized controlled trial | Effect of alendronate and vitamin D on selected bone turnover markers in women with postmenopausal osteoporosis and a high fracture risk; a randomized controlled trial | SLCTR/2018/038 |
| Effectiveness of national program of iron and vitamin D supplementation | Effectiveness of national program of iron and vitamin D supplementation among secondary female students in Gonabad | IRCT20180722040559N3 |
| The effect evaluation of vitamin D supplementation in the populations with pre-diabetes | The effect evaluation of vitamin D supplementation in the populations with pre-diabetes | ChiCTR1800019719 |
| Treatment of Peyronie's disease with hyperthermia, vitamin D and testosterone: a pilot randomised controlled trial | | ISRCTN82950322 |
| Effect of Vitamin D Administration Along With SSRIs in Patients With Major Depressive Disorder | Effect of Vitamin D Administration Along With Selective Serotonin Reuptake Inhibitors (SSRIs) in Patients With Major Depressive Disorder (MDD) | NCT03754712 |
| Vitamin D3 For CGD Patients With BCGosis/Itis | Effect of Vitamin D3 Supplementation on Chronic Granulomatous Disease Patients With BCGosis/Itis | NCT03984890 |
| Evaluation of the efficacy and safety of the three different Vitamin D formulations in VIT-D3 deficient subjects. | A single centre, open label, prospective, randomized, parallel group, comparative study to evaluate efficacy and safety of three different form of Vitamin D repletion strategies with standard treatment (Calcium tablet) in VIT-D3 deficient subjects. | CTRI/2018/12/016539 |
| Effect of Vitamin D Deficiency and Vitamin D Supplementation on Glucose Metabolism | Improved Insulin Sensitivity With Therapeutic Vitamin D Replacement in Pre-Diabetic Vitamin D Deficient Individuals | NCT00749918 |
| Kabul Vitamin D Supplementation Trial | The Effect of Vitamin D Supplementation on the Incidence of Pneumonia in Children in Afghanistan: a Randomized Controlled Trial | NCT00548379 |
| Vitamin D to Improve Outcomes by Leveraging Early Treatment: Long-term Brain Outcomes in Vitamin D Deficient Patients | Vitamin D to Improve Outcomes by Leveraging Early Treatment: Long-term Brain Outcomes in Vitamin D Deficient Patients (VIOLET-BUD) | NCT03733418 |
| High-dose Vitamin D Supplements in Older Adults | Phase II RCT of High-dose Vitamin D Supplements in Older Adults | NCT03613116 |
| Effects of Vitamin D Replacement in Patients With Primary Hyperparathyroidism (PHPT) | Pilot Study to Detect and Assess the Effect of Vitamin D Replacement on Gland Size by 4DCT in Patients With Primary Hyperparathyroidism (PHPT) | NCT00538720 |
| Adjunctive Treatment With Vitamin D3 in Patients With Active IBD | Adjunctive Treatment With Vitamin D3 in Patients With Active IBD (ACTIVATED): A Randomized, Double-blind, Placebo-controlled Trial | NCT04225819 |
| Vitamin D supplementation and immune regulation study | The D-SIRe2 study: a randomised placebo-controlled trial assessing the short-term (12 weeks) and long-term (43 weeks) effects of low-dose vitamin D3 Supplementation on markers of Immune system Regulation in healthy volunteers in the northeast of Scotland. | ISRCTN73114576 |
| Effect of intra-lesion injection of vitamin D3 versus cryotherapy on the treatment of plantar warts | Effect of intra-lesion injection of vitamin D3 versus cryotherapy on the treatment of plantar warts: a randomized clinical trial | IRCT20120215009014N358 |
| Determining the Effect of Vitamin D, Dyslipidemia and Microvascular in Patients With Type 2 Diabetes | Determining the Effect of Vitamin D, Dyslipidemia and Microvascular in Patients With Type 2 Diabetes | NCT04439474 |
| Vitamin D Supplementation in the Prevention and Mitigation of COVID-19 Infection | The Role of Vitamin D in Mitigating COVID-19 Infection Severity: Focusing on Reducing Health Disparities in South Carolina | NCT04482673 |
| The Effect of D3 on Selected Cytokines Involved in Cytokine Storm in the Covid-19 Uninfected Jordanian People | The Effect of Weekly 50,000 IU Vitamin D3 Supplements on the Serum Levels of Selected Cytokines Involved in Cytokine Storm of Covid-19; A Randomized Clinical Trial in the Covid-19 Uninfected Jordanian People With Vitamin D Deficiency | NCT04476745 |
| Tele-health Enabled Clinical Trial for COVID-19 | Tele-health Enabled Clinical Trial for COVID-19: Vitamin D as an Immunomodulator to Prevent Complications and Reduce Resource Utilization in Outpatients | NCT04489628 |
| VITamin D and OmegA-3 TriaL: Interrelationship of Vitamin D and Vitamin K on Bone (VITAL) | VITamin D and OmegA-3 TriaL: Interrelationship of Vitamin D and Vitamin K on Bone | NCT04573946 |
| VITALITY Trial | VITamin D for AdoLescents with HIV to reduce musculoskeletal morbidity and ImmunopaThologY | PACTR202009897660297 |
| Efficacy of vitamin D supplementation in preventing peripheral neuropathy in multiple myeloma patients. | Efficacy of vitamin D supplementation in preventing peripheral neuropathy in multiple myeloma patients. - Efficacy of vitamin D in preventing neuropathy | NL-OMON43187 |
| Evaluation of the likely beneficial effects of vitamin D on infection with coronavirus. | Usefulness of vitamin D on morbidity and mortality of SARS-COV-2 virus infection (Covid-19) at the Central University Hospital of Asturias - Vitamin D and COVID-19 | EUCTR2020-002274-28-ES |
| The Effect of Vitamin D and Selenium Supplements | The Effect of Supplements Containing Vitamin D and Selenium to Asthma Treatment on Symptoms and Immunological Alterations in Patients with Moderate to Severe Asthma | IRCT20150716023235N16 |
| TO STUDY THE EFFECTIVENESS OF INTRALESIONAL MEASLES MUMPS RUBELLA VACCINE AND VIT D3 FOR THE TREATMENT OF WARTS | A Comparative Study To Evaluate The Efficacy Of Intralesional Measles, Mumps And Rubella Vaccine And Intralesional Vitamin D3 In The Treatment Of Extragenital Warts | CTRI/2020/09/027933 |
| Vitamin D Supplementation in RNA-seq Profiles of Single-core Prostate Samples, Among Veterans | Vitamin D Supplementation in RNA-seq Profiles of Single-core Prostate Samples, Including Diversity and Stress Determinants, Among Veterans | NCT04621500 |
| Vitamin D Supplementation in Estonian Conscripts | The Influence of Vitamin D on the Physical Performance and General Health of Conscripts of the Estonian Defence Forces | NCT04939636 |
| Pearlium®/Effecti-Cal®, a Novel Formulation of Calcium, Vitamin D and Minerals for Prevention of Postmenopausal Bone Loss | Pearlium®/Effecti-Cal®, a Novel Formulation of Calcium, Vitamin D and Minerals for Prevention of Postmenopausal Bone Loss | NCT04609189 |
| Effect of Vitamin D3-fortified Fruit Juice on Iron Status in Women | Effect of Vitamin D3-fortified Fruit Juice Supplementation on the Recovery of Iron Status in Childbearing-aged Women With Marginally Low Iron Stores | NCT04618289 |
| Vitamin D3 Supplements on semen parameters | To assess the effectiveness of vitamin D3 in improving sperm count, motility and morphology in subfertile men | CTRI/2020/11/028788 |
| Vitamin D Supplementation in Individuals With a Chronic Spinal Cord Injury | Vitamin D Supplementation in Individuals With a Chronic Spinal Cord Injury - a Placebo-controlled Randomized Double-blinded Study | NCT04652544 |
| Comparing the fraction of Vitamin D3 that reaches the blood circulation in healthy volunteers after a single dose of either a marketed liquid medication or a new form of the medication that is dissolvable in the mouth | Vitamin D3 bioavailability comparison between a marketed oral solution and a new orodispersible film in healthy volunteers | ISRCTN13208948 |
| Vitamin D Supplementation in Children With Sickle Cell Disease | Effect of Vitamin D Supplementation on Sickle Cell Disease Hospitalisation and Related Complications Among Children in Mulago Hospital: A Randomised Clinical Trial | NCT04662476 |
| Impact of Vitamin D Supplementation on the Rate of Pathologic Complete Response in Vitamin D Deficient Patients | Impact of Vitamin D Supplementation on the Rate of Pathologic Complete Response in Vitamin D Deficient Patients Receiving Neoadjuvant Chemotherapy for Operable Triple Negative Breast Cancer | NCT04677816 |
| Vitamin D Supplementation for the Prevention of Acute Respiratory Infections: a RCT in Young Finnish Men | Vitamin D Supplementation for the Prevention of Acute Respiratory Tract Infection: a Randomized, Double-blinded and Plasebo Controlled Trial Among Young Finnish Men | NCT05014048 |
| Effects of vitamin D supplementation in physically active adults | Effect of vitamin D supplementation on resting metabolic rate, body composition and strength in physically active adults | ACTRN12620000896976 |
| Vitamin D Supplementation as a Neoadjuvant for Photodynamic Therapy of Actinic Keratoses | Vitamin D Supplementation as a Neoadjuvant for Photodynamic Therapy of Actinic Keratoses | NCT04140292 |
| Vitamin D Testing and Treatment for COVID 19 | Vitamin D Testing and Treatment for Adults With COVID 19 | NCT04407286 |
| International ALLIANCE Study of Therapies to prevent progression of COVID-19, a randomized trial | Therapies to prevent progression of COVID-19, including Hydroxychloroquine, Azithromycin, Zinc, Vitamin D with or without Vitamin C, a multi-centre, international, randomized trial: The International ALLIANCE Study - Stage 1 | ACTRN12620000557932 |
| Effect of Vitamin D Status and Repletion on Postoperative Total Joint Arthroplasty Complications | Effect of Vitamin D Status and Repletion on Postoperative Total Joint Arthroplasty Complications | NCT04229368 |
| Vitamin D to improve Fatigue and Quality of Life in Patients with Colorectal Cancer | Personalized Vitamin D Supplementation for Reducing or Preventing Fatigue and Enhancing Quality of Life of Patients with Colorectal Tumor: Randomized Intervention Trial - Vitamin D for Reducing Cancer related Fatigue and Enhancing Quality of Life | EUCTR2019-000502-30-DE |
| Trial of High-Dose Vitamin D in the Treatment of Complicated Severe Acute Malnutrition | Trial of High-Dose Vitamin D in the Treatment of Complicated Severe Acute Malnutrition | NCT04270643 |
| Vitamin D in Pregnancy | Vitamin D Deficiency in Pregnancy - Identifying Associations and Mechanisms Linking Maternal Vitamin D Deficiency to Placental Dysfunction and Adverse Pregnancy Outcomes | NCT04291313 |
| Intralesional Vitamin D Injection for Treatment of Common Warts | Efficacy of Intralesional Vitamin D Injection for Treatment of Common Warts: A Randomized Controlled Trial | NCT04278573 |
| The efficacy of Vitamin D3 on seizure attacks in the patients with drug-resistant epilepsy | Effect of Vitamin D3 on seizure attacks in the patients with drug-resistant epilepsy compared with the control group | IRCT20130730014217N2 |
| A study to assess the metabolic alterations of cholecalciferol (vitamin D3) after oral administration in elderly volunteers | A study to assess the metabolic alterations of cholecalciferol (vitamin D3) after oral administration in elderly volunteers | KCT0004781 |
| Relationship between the Level of Vitamin D3 Deficiency and Dental Implant Osseointegration | Relationship between the Level of Vitamin D3 deficiency and successful osseointegration | TCTR20200304001 |
| A pilot randomised controlled trial to determine if vitamin D treatment will result in greater bone mass acquisition in pubertal girls | | ISRCTN72827849 |
| Observation and Study on Vitamin D3 for Immunotherapy of Refractory Graves Disease | Observation and Study on Vitamin D3 for Immunotherapy of Refractory Graves Disease | ChiCTR2000030587 |
| Effects of Tocilizumab and its combination with Vitamin D to treat the increased defensive response in COVID-19 | A randomized clinical trial (IIIb) of eficacy of a single dose of Tocilizumab or a combination of Tocilizumab plus Vitamin D (single i.m. dose) for the treatment of the COVID-19 hyperimmune complication. Assessment of IL-6. - Tocilizumab vs. its combination with Vitamin D. Variation in IL-6 | EUCTR2020-001903-17-ES |
| High Dose Interval Vitamin D Supplementation in Patients With Inflammatory Bowel Disease Receiving Biologic Therapy | Implementation of High Dose Interval Vitamin D Supplementation in Patients With Inflammatory Bowel Disease Receiving Infliximab or Vedolizumab | NCT04331639 |
| Vitamin D, Probiotics and Breast Cancer | Effects of 4 months of 25 Hydroxy vitamin D3 supplementation and probiotics independently and concomitantly on some factors affecting cancer progression in patients with breast cancer undergoing surgery referred to Shahid Bahonar Hospital in Kerman. | IRCT20200313046756N1 |
| Comparison of vitamin D3 and N-acetylcysteine prescription in COVID-19 patients and their effect on recovery process | Comparison of vitamin D3 and N-acetylcysteine prescription in COVID19 patients and their effect on recovery process | IRCT20200324046850N1 |
| Comparative evaluation of efficacy of Vitamin D3 supplements using biomarkers on orthodontic tooth movement in patients with Vitamin D insufficiency | effects of vitamin D3 supplements on orthodontic bone remodelling in young adults with vitamin D insufficiency seeking orthodontic treatment using bone turnover marers in gingival crevicular fluid | CTRI/2020/04/024563 |
| Vitamin D Supplementation in Conscripts | Fitness and Health Characteristics in Conscripts With Supplementation of Vitamin D | NCT04359524 |
| A multicenter randomized controlled study of vitamin D supplementation in pregnant women for the prevention of gestational diabetes | A multicenter randomized controlled study of vitamin D supplementation in pregnant women for the prevention of gestational diabetes | ChiCTR2000032488 |
| Anti-inflammatory Effect of Curcumin, Homotaurine, Vitamin D3 on Human Vitreous in Patients With Diabetic Retinopathy | Analysis of Soluble Mediators of Inflammation and Angiogenesis in the Vitreous of Patients With Diabetic Retinopathy Treated With Curcumin/Homotaurine/Vit. D3 | NCT04378972 |
| Vitamin D and COVID-19 Management | Improving Vitamin D Status in the Management of COVID-19 | NCT04385940 |
| Replenishing and Maintaining Vitamin D Status in Older Adults in Residential Care Facilities in NI | Replenishing and Maintaining Vitamin D Status in Deficient Older Adults in Residential Care Facilities in Northern Ireland | NCT04395638 |
| Vitamin D 2 to Dialysis Patients | Vitamin D and Muscle Strength in the Dialysis Population | NCT00535158 |
| Clinical Trial to Optimise Levels of Vitamin D for Rhinovirus Protection | Clinical Trial to Optimise Levels of Vitamin D for Rhinovirus Protection (COLD) | NCT04368520 |
| Association Between Vitamin D and the Risk of Uterine Fibroids | Association Between Vitamin D and the Risk of Uterine Fibroids | NCT03586947 |
| Oral Vitamin D Supplementation in Elderly Women | Oral Vitamin D Supplementation in Elderly Women: Twice a Day or Three Times a Year? A Randomised Controlled Trial | NCT00575835 |
| Efficacy of High versus Conventional Dose of Ergocalciferol Supplementation on Serum 25-Hydroxyvitamin D and Interleukin-6 levels in Hemodialysis Patients with Vitamin D Deficiency: Multicenter, Randomized, Controlled Study | Efficacy of High versus Conventional Dose of Ergocalciferol Supplementation onSerum 25-Hydroxyvitamin D and Interleukin-6 levels in Hemodialysis Patients withVitamin D Deficiency: Multicenter, Randomized, Controlled Study | TCTR20200213006 |
| Vitamin D Effect in Rheumatoid Arthritis. | Vitamin D: Does It Help Tregs in Active Rheumatoid Arthritis Patients. | NCT04472481 |
| The Role of Vitamin D Supplementation on Pain in Women With Primary Dysmenorrhea and Hypovitaminosis D | The Role of Vitamin D Supplementation on Pain in Women With Primary Dysmenorrhea and Hypovitaminosis D: A Randomized, Double-blind, Placebo-Controlled Study | NCT04829487 |
| Efficacy of vitamin D supplement and topical benzoyl peroxide in mild to moderate acne | Efficacy of vitamin D supplement and topical benzoyl peroxide in mild to moderate acne | TCTR20210616002 |
| The impact of vitamin D supplementation in chronic heart failure | Examining the pleiotropic actions of vitamin D supplementation in patients with chronic heart failure | ISRCTN17873085 |
| Vitamin D Deficiency in Adults Following a Major Burn Injury | Vitamin D Deficiency in Adults Following a Major Burn Injury | NCT05084248 |
| Effects of Vitamin D on Lipids | Effects of Vitamin D on Lipids | NCT00723385 |
| Vitamin D Supplementation on Reported Rates of Taxane-Induced Neuropathy | Impact of Vitamin D Supplementation on Reported Rates of Taxane-Induced Neuropathy | NCT05259527 |
| The Effects of Vitamin D and Calcium Supplementation to Parathyroid Hormone in CHB Patients Treated With TDF | The Effects of Vitamin D and Calcium Supplementation to Parathyroid Hormone in CHB Patients Treated With Tenofovir Disoproxil Fumarate | NCT05313477 |
| The effect of vitamin D and chemotherapy compared with chemotherapy in the treatment of chemotherapy after ovarian cancer surgery | The effect of vitamin D and chemotherapy compared with chemotherapy in the treatment of chemotherapy after ovarian cancer surgery | IRCT2017101833680N4 |
| The effect of vitamin D deficiency treatment on dyspnea severity in patients with COPD | Comparison of the effect of vitamin D and placebo on clinical and spirometric indices in patients with chronic obstructive pulmonary disease (COPD). | IRCT2017042919554N12 |
| Vitamin D Homeostasis in Sarcoidosis | Vitamin D Homeostasis in Sarcoidosis | NCT03621553 |
| A Study of Fixed Dose Versus Serum Level-Based Titration Regimen of Vitamin D Supplementation in Dialysis Patients | A Randomized Study Comparing Between Fixed Dose and Serum Level-Based Titration Regimen of Vitamin D Supplementation Among Dialysis Patients | NCT05434377 |
| Immune Mechanisms of Vitamin D to Reduce Chronic Pain After Burn | Immune Mechanisms of Vitamin D in a Randomized Controlled Trial to Reduce Chronic Pain After Burn | NCT05619289 |
| The Effect of High-Dose Vitamin D Supplementation on Hand Grip Strength Recovery in Eldery patient with Distal Radius Fracture : A Double-blinded Randomized Controlled Trial | The Effect of High-Dose Vitamin D Supplementation on Hand Grip Strength Recovery in Eldery patient with Distal Radius Fracture : A Double-blinded Randomized Controlled Trial | TCTR20240720001 |
| Effect of combined omega-3 and vitamin D supplementation in treatment of coronary heart disease | Clinical trial of the effect of combined omega-3 and vitamin D supplementation compared with the placebo on carotid intima-media thickness and metabolic profiles in type 2 diabetic patients with coronary heart disease | IRCT2017090133941N15 |
| Comparative Efficacy of Oily Form vs. Micellized Nano-Droplet Form Vitamin D3 | Efficacy of Supplementation with Oily Form Vitamin D3 Vs. Micellized Nano-Droplet Form Vitamin D3 in Children: A Randomized Controlled Trial | CTRI/2017/10/010052 |
| Vitamin D for Painful Nocturnal Leg Cramps | Nocturnal Leg Cramps in the Elderly: Randomized Controlled Trial of Ergocalciferol (Vitamin D2) for a Painful and Distressing Problem | NCT00715429 |
| Role of Vitamin D3 intake and decrease in Respiratory infections. | Randomised Trial of Two Different Doses of Vitamin D Supplementation And Risk of Acute Respiratory Infection in Childrens in Rural Kolar, Karnataka. | CTRI/2017/10/010274 |
| Immunomodulatory Effect of Vitamin D in Colon Cancer Patients: a Randomized Clinical Trial | Immunomodulatory Effect of Vitamin D in Colon Cancer Patients: a Randomized Clinical Trial | TCTR20171106001 |
| Dose of vitamin D in children with chronic kidney disease | Optimal dose of cholecalciferol supplementation in Indian children with chronic kidney disease-A randomised control trial | CTRI/2017/11/010385 |
| The effect of vitamin D deficiency treatment on the improvement of patients with fatty liver disease | The effect of vitamin D supplementation on serum Liver enzymes in patients with Non-Alcoholic Fatty Liver Disease | IRCT2017102218124N5 |
| VItamiN D treatIng Chronic heArT Failure (the Effect of Vitamin D Supplementation in Patients With Heart Failure) | VItamiN D treatIng Chronic heArT Failure (the Effect of Vitamin D Supplementation on Hospitalisation and Mortality in Patients With Heart Failure): Multicentre, Phase III, Randomised Placebo-controlled Trial | NCT03416361 |
| Effects of an 8-Week High-Dose Vitamin D on Fatigue and Neuropsychiatric Manifestations in Long COVID: A Randomized Controlled Trial | Effects of an 8-Week High-Dose Vitamin D on Fatigue and Neuropsychiatric Manifestations in Long COVID: A Randomized Controlled Trial | TCTR20221013001 |
| Effects of Vitamin D Supplementation in Muscle Strength and Balance Training | Effects of Vitamin D Supplementation in Muscle Strength and Postural Balance Training in Vulnerable Elderly Women | NCT03367585 |
| Effect of vitamin D supplementation on muscle strength and physical performance in knee osteoarthritis | Effect of vitamin D supplementation on muscle strength and physical performance in knee osteoarthritis | TCTR20170324006 |
| Vitamin D and Residual Beta-Cell Function in Type 1 Diabetes | Vitamin D and Residual Beta-Cell Function in Type 1 Diabetes | NCT03046927 |
| DIVINE: Dialysis Infection and Vitamin D In New England | DIVINE: Dialysis Infection and Vitamin D In New England | NCT00892099 |
| Vitamin D Deficiency in Chronic Kidney Disease (CKD) Patients | Response of Secondary Hyperparathyroidism to Paricalcitol Versus Ergocalciferol in Patients With Stage 3 and 4 Chronic Kidney Disease With Vitamin D Deficiency: a Randomized Controlled Trial | NCT00958451 |
| Different Vitamin D Preparations & FGF23 in Humans | Effect of Different Vitamin D Preparations on Circulating FGF23 Levels in Vitamin D Deficient Caucasian and African-American Men and Women | NCT00957879 |
| Vitamin D During In Vitro Fertilisation (IVF) - A Prospective Randomized Trial | | NCT01019785 |
| hCAP18 Levels and Vitamin D Deficiency in Chronic Kidney Disease | hCAP18 Levels and Vitamin D Deficiency in Chronic Kidney Disease | NCT01026363 |
| Vitamin D and Inflammatory Markers of Cardiovascular Disease in African Americans With Type 2 Diabetes | Does Administration of Vitamin D in African Americans With Hypovitaminosis D and Type 2 DM Improve Inflammatory Markers of Cardiovascular Disease? | NCT01153243 |
| Effect of Vitamin D Oral Supplements on 25 OH Vitamin D Levels | Effect of Vitamin D Oral Supplements on 25 OH Vitamin D Levels: A Randomized Controlled Trial | NCT01170494 |
| Melatonin and Vitamin D in Breast Cancer | Anti-proliferative Effects of Melatonin and Vitamin D in Breast Cancer | NCT02288806 |
| Vitamin D Supplement Study for Stage Three and Four Chronic Kidney Disease (CKD) Patients | A Randomized Study to Evaluate the Effectiveness of Cholecalciferol Versus Ergocalciferol Following Kidney Disease Outcomes Quality Initiative (K/DOQI) Guidelines for Vitamin D Therapy in Stages 3 & 4 Chronic Kidney Disease (CKD) Patients | NCT01173848 |
| Vitamin D Deficiency in Adolescent Girls | Vitamin D Deficiency in Adolescent Girls | NCT01180946 |
| Vitamin D and Bone Homeostasis in Ortho Polytrauma Patients | A Pilot Study of Role of Vitamin D in Regulation of Bone Homeostasis in Orthopaedic Polytrauma Patients | NCT03066817 |
| Study Comparing Two Isoforms of Vitamin D Supplements for Infants | Bio-equivalency Study of the Effects of Vitamin D2 and Vitamin D3 Supplements on 25-hydroxyvitamin D Levels in Exclusively Breast Fed Canadian Infants | NCT01190137 |
| Effect of Vitamin D Supplementation on Inflammation and Cardiometabolic Risk Factors in Obese Adolescents | The Effect of Vitamin D on Cytokines and Cardiometabolic Risk in Obese Adolescents | NCT01217840 |
| Vitamin D Repletion in Stone Formers With Hypercalciuria | Effect of Ergocalciferol Repletion on Urine Calcium Among Stone Formers With Vitamin D Deficiency and Hypercalciuria | NCT01295879 |
| Sustainability of Vitamin D Levels After Repletion With Ergocalciferol In Chronic Kidney Disease Stage 5D | Sustainability of 25-hydroxyvitamin D Levels, Inflammatory Reduction, and Endothelial Dysfunction After Repletion With Ergocalciferol in CKD Stage 5D | NCT01312441 |
| Treatment of Vitamin D Deficiency in Patients With Rheumatoid Arthritis | Vitamin Therapy in Rheumatoid Arthritis | NCT01426347 |
| Safety and Bioefficacy of Vitamin D2 and Vitamin D3 | Safety and Bioefficacy of Vitamin D2 and Vitamin D3: Randomized Trial With Human Volunteers | NCT01503216 |
| Evaluating Vitamin D Content in Mushrooms | Evaluation of Vitamin D in a Mushroom Supplement | NCT01815437 |
| Vitamin D Repletion in Coronary Artery Disease | The Effects of Vitamin D Repletion on Endothelial Function and Inflammation in Patients With Coronary Artery Disease | NCT01570309 |
| Is Treatment of Vitamin D Deficiency Associated With Resolution of Statin-Induced Muscular Symptoms | Is Treatment of Vitamin D Deficiency Associated With Resolution of Statin-Induced Muscular Symptoms | NCT01568255 |
| Vitamin D and Cardiac Autonomic Tone in Hemodialysis | Vitamin D Supplementation and Cardiac Autonomic Tone in Hemodialysis Patients: A Blinded, Randomized-controlled Trial | NCT01774812 |
| Hepatic Dysfunction, Vitamin D Status, and Glycemic Control in Diabetes | Hepatic Dysfunction, Vitamin D Status, and Glycemic Control in Diabetes | NCT02132442 |
| Respiratory infections in asthma: the role of host defense against infections, allergic inflammation and vitamin D | Respiratory infections in asthma: the role of host defense against infections, allergic inflammation and vitamin D - asthma and vitamin D | NL-OMON31956 |
| Treatment of Women with PCOS of Phenotype D | Treatment of Menstrual Cycle Alterations in Women with PCOS of Phenotype D Using Dietary Supplementation That Combines Diosgenin, Vitamin D and Alpha-lactalbumin | NCT06639698 |
| Effect of Vitamin D3 on Functions of Kidney and Blood Vessels in Vitamin D Deficient Patients with Type 2 Diabetes Mellitus | A Randomized Double-Blind Placebo-Controlled Trial Evaluating the Efficacy of Oral Vitamin D3 in Improving Renal and Vascular Functions in Vitamin D Deficient Patients with Type 2 Diabetes Mellitus | CTRI/2017/12/010785 |
| The vitamin D deficiency in pregnancy: prevalence and treatments | Vitamin D Status and Response to Vitamin D3 (50000 unit supplementation) in pregnant Iranian woman | IRCT20170714035077N3 |
| Effect of High Dose Vitamin D Supplementation on HIV Latency | Effect of High Dose Vitamin D Supplementation on HIV Latency: A Pilot Randomized Controlled Trial | NCT03426592 |
| Myocardial Function and Vitamin D Supplementation in Diabetes. | Effect of Vitamin D Supplementation on Myocardial Regional Function by Dobutamine Stress Echocardiography in Diabetic Patients. | NCT03437421 |
| Impact on Reducing the Incidence of Low Serum Calcium by Providing Educational Materials on the Need to Take Daily Supplemental Calcium and Vitamin D to Patients With Paget's Disease Treated With Reclast® | Post US Approval Voluntary Registry Study to Determine Incidence of Hypocalcemia Post Reclast® Treatment in Patients With Paget's Disease After Institution of Educational Strategies to Improve Adherence to Calcium and Vitamin D Supplementation | NCT00668200 |
| Efficacy of Vitamin D on serum levele of visfatin and vascular endothelial growth factor (VEGF) | Efficacy of Vitamin D on serum levele of visfatin and vascular endothelial growth factor (VEGF) among Ulcerative Colitis Patients | IRCT20131125015536N7 |
| Effectiveness of a six-week treatment course of vitamin D in steady state sickle cell anaemia children with hypovitaminosis | Comparative Effectiveness of six-week treatment course of vitamin D2 and D3 in children with sickle cell anaemia in steady state: A randomized clinical Trial | PACTR201803003160262 |
| The Efficacy of Different Vitamin D Supplementation Delivery Methods | The Efficacy of Different Vitamin D Supplementation Delivery Methods on Serum 25(OH)D in Humans a Randomised Double-blind Placebo Trial | NCT03463642 |
| Vitamin D as a Nutritional Neoadjuvant During Photodynamic Therapy of Basal Cell Carcinoma | Vitamin D as a Nutritional Neoadjuvant During Photodynamic Therapy of Basal Cell Carcinoma in Basal Cell Nevus Syndrome | NCT03467789 |
| Comparison between vitamin D3, triamcinolone, and fractional CO2 laser for treatment of keloids and hypertrophic scars | Clinical and histopathologic evaluation of intralesional injection of vitamin D3, triamcinolone, and fractional carbon dioxide in treatment of keloids; a prospective randomized controlled trial | PACTR201806003302197 |
| A clinical trial to compare three different regimes for treatment of nutritional rickets in children | To evaluate the efficacy of daily vitamin D therapy versus Stoss therapy in nutritional rickets in Indian children: a randomized controlled trial | CTRI/2018/04/013300 |
| The efficacy and the safety of Vitamin D3 30,000 IU for loading dose schedules | Controlled randomized open label clinical study to compare the efficacy and the safety of the loading dose schedules of Vitamin D3 (colecalciferol) 30,000 IU product in deficient patients - The efficacy and the safety of Vitamin D3 30,000 IU for loading dose schedules | EUCTR2018-000508-40-HU |
| Efficiency of Vitamin D3 and 25-hydroxyvitamin D3 on Transcriptomic Changes of Low Vitamin D Responders | Comparing the Efficiency of Vitamin D3 and 25-hydroxyvitamin D3 Treatment on Changes of the Transcriptome of Low Vitamin D Responders | NCT03537027 |
| Study of the Osteoprotector Effects of a Milk Product Based on Anthocyans and Enriched in Calcium and Vitamin D | | NCT00663221 |
| Development of Vitamin D as a Therapy for Breast Cancer - Phase 2 | Development of Vitamin D as a Therapy for Breast Cancer - Phase 2 | NCT00656019 |
| High-Dose Vitamin D Deficiency in Burn Injury | Use of High-Dose Vitamin D to Treat Vitamin D Deficiency Following Severe Burn Injury in Children I: A Pilot Study | NCT00591604 |
| Vitamin D for Chemoprevention | Defining Optimal Doses of Vitamin D for Chemoprevention in Blacks. | NCT00585637 |
| Clinical Study on the Bioequivalence of Vitamin D in Healthy Adults | A Randomized, Examiner-blind Comparator-controlled Crossover Bioequivalence Study on Vitamin D in Healthy Adults | NCT03552666 |
| Impact of Vitamin D Supplementation in Patients With Multiple Sclerosis | Impact of Vitamin D Supplementation in Patients With Multiple Sclerosis | NCT03385356 |
| Improving Functionality in Older People | Improving Cognition and Brain Imagery Through Optimal Vitamin D Supplementation in the Elderly | NCT03611049 |
| Vitamin D3 Supplementation for AlloHSCT-RCT | Validating a Vitamin D3 Supplementation Regimen Among Patients Undergoing Allogeneic Hematopoietic Stem Cell Transplantation | NCT03534674 |
| Bone and Muscle Health in Kids | Effect of Maternal Vitamin D Supplementation During Pregnancy on Offspring Bone Mass, Body Composition and Muscle Strength in Early Childhood: Follow-up of a Randomized Controlled Trial Cohort. | NCT03537443 |
| To the study the role of vitamin D3 injection for treating cutaneous warts | Role of intralesional vitamin D3 injection in the treatment of cutaneous warts | CTRI/2018/05/013908 |
| The comparison of the effect of vitamin D 3 + Erythropoietin + Pentoxifylline and normal saline on the improvement of patients candidate for lumbar or neck laminectomy | A comparative study on the effect of vitamin D 3 + Erythropoietin + Pentoxifylline and normal saline on the improvement of patients candidate for lumbar or neck laminectomy of Imam Reza Hospital in Kermanshah (2018-2019) | IRCT20130812014333N93 |
| Effect of Vitamin D Supplement in Induction of Ovulation in Overweight Women With Polycystic Ovary Syndrome | Effect of Adding Vitamin D Supplement to Clomiphene Citrate for Induction of Ovulation in Overweight Women With Polycystic Ovary Syndrome | NCT03396380 |
| The effect of Perceptual motor Exercises along with music and Vitamin D3 Supplementation in children with autism spectrum disorder | The effect of Perceptual-motor Exercises along with music and Vitamin D3 Supplementation on Nerve Growth Factor, Attention, motor proficiency and GARS-2 in children with high-functioning autism | IRCT20150519022323N2 |
| The effect of vitamin D on the treatment of type 2 diabetes | The effect of vitamin D injection on Endothelial Biomarker, hs-CRP, Lipid profile and Glycemic Control in vitamin D deficient patients with Type 2 Diabeties | IRCT2017100336539N1 |
| Effect of oral vitamin D to pregnant mothers on vitamin D levels of their children at 6 months of age | Effect of oral vitamin D supplementation to pregnant mothers on vitamin D status of their exclusively breastfed infants at 6 months of age- A randomised triple blind placebo controlled trial | CTRI/2017/12/010850 |
| XELOX/mFOLFOX Plus Vitamin D3 vs. XELOX/mFOLFOX as Firstline Chemotherapy in mCRC | A Randomized, Multicenter, Double-blinded, Phase III Study of Vitamin D3 in Combination With Oxaliplatin Plus Fluoropyrimidine Versus Oxaliplatin Plus Fluoropyrimidine as First-line Chemotherapy in Previously Untreated Advanced or Metastatic Colorectal Cancer | NCT03389659 |
| Efficacy of Broad-Band Ultraviolet B versus Vitamin D3 supplementation in balance control and cognitive functions in Patients with Multiple Sclerosis | Somatic and Cognitive impacts of Broad-Band Ultraviolet B Radiation versus Vitamin D3 supplementation in Patients with Relapsing-Remitting Multiple Sclerosis. | PACTR201801002891127 |
| The effectiveness of vitamin D on diabetic neuropathy | Comparing the effectiveness of 50000 units of vitamin D orally/weekly for 12 weeks and control group on diabetic neuropathy- before and after study | IRCT2017102325266N2 |
| Vitamin D3 Supplementation and Stress Fracture Occurrence in High-Risk Collegiate Athletes | Vitamin D3 Supplementation and Stress Fracture Occurrence in High-Risk Collegiate Athletes | NCT03395171 |
| Effect of combined omega-3 and vitamin D supplementation in treatment of multiple sclerosis | Clinical trial of the effect of combined omega-3 and vitamin D supplementation compared with the placebo on clinical and metabolic status in patients with multiple sclerosis | IRCT2017090133941N20 |
| Prospective, randomized, open-label, blinded-endpoint trial to examine the effect of active vitamin D on cardiovascular events in hemodialysis patients: Japan Dialysis Active Vitamin D trial (J-DAVID) | Prospective, randomized, open-label, blinded-endpoint trial to examine the effect of active vitamin D on cardiovascular events in hemodialysis patients: Japan Dialysis Active Vitamin D trial (J-DAVID) - Japan Dialysis Active Vitamin D trial (J-DAVID) | JPRN-UMIN000001194 |
| Vitamin D trial in Workplace | Intervention study on vitamin D supplementation in single manufacturing company workers | KCT0002540 |
| Safety of Vitamin D Supplementation in Older Persons | Safety of Vitamin D Supplementation in the Elderly | NCT00681590 |
| Efficacy of vitamin D supplementation in deficient multiple myeloma patients | Efficacy of a predefined vitamin D dosing regimen in vitamin D-deficient multiple myeloma patients | NL-OMON22930 |
| Role of Vitamin D in pain relief in Rheumatoid Arthritis | Effect of 1,25 dihydroxy Vitamin D3 Supplementation on Pain Relief in Early Rheumatoid Arthritis: An 8-week, open-label, parallel randomized trial | CTRI/2018/01/011532 |
| Effects of a Food for Special Medical Purposes containing D-Mannose, birch extract, vitamin D and vitamin A for the dietary management of acute symptomatic uncomplicated urinary tract infections in females - a randomized, double-blind, placebo-controlled, parallel-design study | Effects of a Food for Special Medical Purposes containing D-Mannose, birch extract, vitamin D and vitamin A for the dietary management of acute symptomatic uncomplicated urinary tract infections in females - a randomized, double-blind, placebo-controlled, parallel-design study - / | DRKS00013240 |
| Vitamin D and inflammatory bowel disease in children | Vitamin D supplementation in adolescents with inflammatory bowel disease: Does it work? | PACTR201712002835247 |
| Effect of vitamin D3 and calcium on blood lipid | Comparison of combination therapy with vitamin D, calcium and statin with statin alone in reducing blood cholesterol in patients with hypercholesterolemia | IRCT20171007036613N1 |
| Influence of vitamin D administration on the intestinal bacterial composition in CD patients and healthy controls | Influence of vitamin D administration on the intestinal bacterial composition in CD patients and healthy controls | DRKS00013485 |
| Vitamin D Deficiency Treatment Outcomes After Non-ST-Segment Elevation Myocardial Infarction | Vitamin D Deficiency Treatment Outcomes on Inflammation, Endothelial Function and Ventricular Retrieval After Non ST-Segment Elevation Myocardial Infarction: A Randomized Placebo Controlled Clinical Trial (NAVID Study) | NCT03405207 |
| Does treatemnt with Vitamin D and Calcium help patients with Steroid Sensitive Nephrotic Syndrome ? | A Randomized Controlled Trial to assess the effect of Vitamin D deficiency and supplementation on Bone Mineral Density in steroid sensitive nephrotic syndrome | CTRI/2018/01/011225 |
| L-arginine and Vitamin D Adjunctive Therapy in Pulmonary Tuberculosis (TB) | Phase 3 Trial of Oral L-arginine and / or Vitamin D as Adjunctive Therapies in Pulmonary Tuberculosis in Papua Province, Indonesia. | NCT00677339 |
| Vitamin D deficiency in diabetic patients with obesity | To assess the effects of vitamin D supplementation in improving endothelial function in patients with diabetes and obesity | ACTRN12609000840280 |
| Correction of Vitamin D Deficiency in Chronic Hepatitis C Patients who Had Sustained Virologic Response After Direct-acting Agent Therapy : Effect on Serum Hepatic Fibrogenesis Markers | Correction of Vitamin D Deficiency in Chronic Hepatitis C Patients who Had Sustained Virologic Response After Direct-acting Agent Therapy : Effect on Serum Hepatic Fibrogenesis Markers | TCTR20171206003 |
| Effect of vitamin D supplementation on anxiety and inflammation in diabetic women. | The effect of vitamin D supplementation on anxiety, inflammation, Omentin and Vaspin biomarkers in diabetic women | IRCT20170927036451N1 |
| Metformin, Vitamin D, and Depression in Polycystic Ovary Syndrome (PCOS) Trial | Metformin, Vitamin D, and Depression in Polycystic Ovary Syndrome (PCOS) Trial: The MINDD Trial | NCT03380091 |
| Efficacy of topiramate alone and topiramate with supplement vitamin D3 on migraine headaches in 5-15 year old migraineur children | Evaluation of efficacy of topiramate alone and topiramate with supplement vitamin D3 on monthly frequency, severity, and disability score of headaches in 5-15 year old migraineur children without vitamin D3 deficiency | IRCT201701092639N20 |
| Effect of Vitamin D on Drug Resistant Helicobacter Pylori (HP) Eradication Study | Delineation of Therapeutic Potential and the Causal Relationship Between Vitamin D and Helicobacter Pylori (HP) Infection and Gastritis | NCT03142620 |
| Vitamin D, Leptin, Vitamin D Receptor Polymorphism, and Treatment-Related Morbidity in Ovarian Cancer | Vitamin D, Leptin, Vitamin D Receptor Polymorphism, and Treatment-Related Morbidity in Ovarian Cancer | NCT03028519 |
| Additief antiproteinurisch effect van de vitamine D analoog paricalcitol. | Vitamin D in addition to RAAS blockade and dietary sodium for the Treatment of Urinary Excretion of albumin. | NL-OMON22539 |
| Vitamin D and Fish Oil for Autoimmune Disease, Inflammation and Knee Pain | Vitamin D and Fish Oil for Autoimmune Disease, Inflammation and Knee Pain | NCT01351805 |
| Public title of study A Study Evaluating the Effect of Vitamin D Supplementation on Beta Cell Function and Insulin Resistance in Obese Asian-Indian Children Aged 11-17 years. | A Randomized Double Blind Controlled Trial to Investigate the Effects of Vitamin D supplementation on Insulin Resistance and Beta cell function in obese Asian-Indian Subjects, aged 11-17 years. | CTRI/2011/04/001699 |
| Effects of Vitamin D on Renin Expression in Hypertensive Patients | Effects of Calcitriol (1a, 25-[OH]2 Vitamin D3) on Renin Expression in Hypertensive Patients Without Vitamin D Deficiency | NCT00585442 |
| Vitamin D and Glucose Metabolism in Pediatrics | Vitamin D Concentrations and Their Effect on Glucose Metabolism in Pediatrics | NCT01386736 |
| Identifying Vitamin D Deficiency in Very Low Birth Weight Infant (VLBW) Infants Part 2 | Identifying Vit D Deficiency in VLBW Infants Part 2 | NCT01363167 |
| Vitamin D and COPD | Clinical trial for comparing the effect of 25(oh)2vitD, calcitriol and placebo on pulmonary function test, serum C reactive protein and total antioxidant in patient with chronic obstructive pulmonary disease. | IRCT138712271774N1 |
| Vitamin D for Sickle Cell | Pilot Study of Vitamin D to Ameliorate Chronic Pain in Sickle Cell Disease | NCT01331148 |
| Assessment of fracture healing by high-resolution peripheral quantitative computer tomography (HRpQCT) and bone strength analysis in standard care and after immediate administration of vitamin D. | Assessment of fracture healing by high-resolution peripheral quantitative computer tomography (HRpQCT) and bone strength analysis in standard care and after immediate administration of vitamin D. - Fracture healing by HRpQCT in standard care and after vitamin D. | NL-OMON41626 |
| Vitamin D for the Treatment of Severe Asthma | Asthma and Vitamin D (a Clinical Pilot Study) | NCT00712205 |
| Tumor Necrosis Factor Decreases Vitamin D Dependant Calcium Absorption | Tumor Necrosis Factor-a Induces Vitamin D Resistance in Small Intestinal Calcium Absorption | NCT00427804 |
| Assessment the effect of Ca-Vitamin D and metformin on PCOS | The effect of Calcium-Vitamin D and Metformin on Polycystic Ovarian Syndrome | IRCT201009131760N9 |
| Vitamin D and Omega-3 Inhibit Metabolic Syndrome | Phase 3 Study of Vitamin D and Omega-3 Supplementation to Reduce Risk of Metabolic Syndrome | NCT01326442 |
| Vitamin D and Mortality in Heart Failure | Effect of Vitamin D on All-cause Mortality in Heart Failure Patients | NCT01326650 |
| Vitamin D Supplementation and Cardiac Hypertrophy in Chronic Kidney Disease (CKD) | Impact of Vitamin D Supplementation on Cardiac Hypertrophy and Function in Chronic Kidney Disease Patients - a Randomised Controlled Trial | NCT01323712 |
| Sleep Apnea Syndrome and Vitamin D | Effect of the Correction of Vitamin D Deficiency in Patients With Obstructive Sleep Apnea-hypopopnea Syndrome (OSAHS) | NCT01323218 |
| Study of Vitamin D and Uric Acid Lowering on Kidney and Blood Vessel Function | Modifiable Effectors of Renin System Activation: Treatment Evaluation (MODERATE) | NCT01320722 |
| Role of replacing vitamin D in people who are deficient in vitamin-D and have a high risk of developing diabetes (prediabetes) in preventing the progression to diabetes | Effect of vitamin-D supplementation on the progression to overt diabetes of prediabetes with vitamin-D deficiency: A randomized controlled trial. | CTRI/2011/091/000192 |
| Test if adding Vitamin D, a safe standard vitamin supplement to steroid tablets, will improve the clinical response to steroids in patients who are considered to be steroid resistant | Does 1-alpha,25-dihydroxyvitamin D3 (calcitriol) enhance corticosteroid activity in steroid refractory asthma?A randomised control trial to test whether active vitamin D can improve the clinical response to steroids in asthmatic patients. - Vitamin D and steroid resistant asthma | EUCTR2008-002244-42-GB |
| Human Intervention Study With Calcium Phosphate and Vitamin D | The Effect of Vitamin D3 Alone and in Combination With Calcium Phosphate on Bone Metabolism in Healthy Adults | NCT01297023 |
| Gene Expression Profile of Breast Cancer Samples After Vitamin D Supplementation | Influence of Vitamin D on Gene Expression Profile of Breast Cancer Samples From Post-menopausal Patients | NCT00926315 |
| Vitamin D Plus Celecoxib Therapy to Stimulate Intratumoral Immune Reactivity | Vitamin D Plus Celecoxib Therapy to Stimulate Intratumoral Immune Reactivity | NCT00953849 |
| Vitamin D and Coronary Calcification Study | A Phase IV, Randomized, Single-center Study of the Effects of Calcitriol and Paricalcitol on Vascular Calcification in Chronic Kidney Disease Stages 3 and 4 | NCT00752102 |
| Effect of Vitamin D Repletion on Insulin Resistance and Systemic Inflammation | Effect of Vitamin D Repletion on Insulin Resistance and Systemic Inflammation | NCT01354964 |
| Effect of Vitamin D Supplementation on Hemoglobin A1c | Does Vitamin D Supplement Alter Serum Level of Glycosylated Hemoglobin in Adult Patients Between 34-74 Years With Type 2 Diabetes Mellitus and Vitamin D Deficiency? | NCT01354262 |
| Vitamin D status in heart surgery patients and effects on clinical outcomes | In elective cardiac surgery patients, what is the effect of vitamin D status on clinical ICU outcomes, and does a 6 week period of vitamin D supplementation post surgery increase serum vitamin D levels in those found to be deficient? | ACTRN12611000516987 |
| DO IT Trial: Vitamin D Outcomes and Interventions In Toddlers | DO IT Trial: Vitamin D Outcomes and Interventions In Toddlers | NCT01419262 |
| Vitamin D and Chronic Obstructive Lung Disease | Vitamin D and COPD. A Randomised, Double-blind, Placebo-controlled Trial of the Effect of Vitamin D on Withdrawal From Pulmonary Rehabilitation and Exercise Endurance | NCT01416701 |
| Calcitriol and Zoledronate in Treating Patients With Progressive Prostate Cancer | A Phase I Study of 1,25 Dihydroxy-Vitamin D3 (Calcitriol) in Patients With Prostate Cancer | NCT00004928 |
| Efficacy of Vitamin D Supplementation in relapsing-remitting Multiple Sclerosis | Efficacy of Vitamin D Supplementation in relapsing-remitting Multiple Sclerosis - EVIDIMS | EUCTR2011-002785-20-DE |
| Prediabetes, Prehypertension and Vitamin D Supplementation - A Practice Based Clinical Intervention Pilot Study | Prediabetes, Prehypertension and Vitamin D Supplementation - A Practice Based Clinical Intervention Pilot Study | NCT01425424 |
| The effect of vitamin D in succss of IVF | Predictive value of follicular fluid Vitamin D in pregnancy rate of ivf program | IRCT201107314339N3 |
| Alzheimer's Disease - Input of Vitamin D With mEmantine Assay | Evaluation d'Une stratégie thérapeutique d'Association médicamenteuse Pour la Prise en Charge de la Maladie d'Alzheimer et Des Maladies apparentées au Stade modéré | NCT01409694 |
| Comparison of the bioavailability of vitamin D2 and D3 | Comparison of the bioavailability of vitamin D2 and vitamin D3 in healthy volunteers when consumed at different levels in a malt drink | ISRCTN24666304 |
| Challenges in Achieving Adequate Vitamin D Status in the Adult Population - Part 3 (VITAD/3) | Challenges in Achieving Adequate Vitamin D Status in the Adult Population - Part 3: Screening Tool for Identification of Subjects at Risk for Suboptimal Vitamin D Status | NCT05641818 |
| The Immune and Clinical Impacts of Vitamin D in Patients With Chronic Musculo-skeletal Pain | The Immune and Clinical Impacts of Vitamin D in Patients With Chronic Musculo-skeletal Pain | NCT01417923 |
| Ergocalciferol vs. Cholecalciferol Food Fortification Study | Ergocalciferol (Vitamin D2) vs. Cholecalciferol (Vitamin D3) Food Fortification: Comparative Efficiency in raising 25OHD Status in Caucasian & Asian Women and Mechanisms of Action (D2-D3 Study) | ISRCTN23421591 |
| Nursing-Home Residents Given Bread Fortified With Vitamin D3 | Long-Term Effects of Giving Nursing-Home Residents Bread Fortified With 125 Micrograms (5000 IU) Vitamin D3 Per Daily Serving | NCT00789503 |
| In patients with chronic hepatitis C, ribavirin doses of vitamin D and alpha -2 pegeuinteoperon impact on response to treatment A: randomized, multicenter, phase IV clinical public | In patients with chronic hepatitis C, ribavirin doses of vitamin D and alpha -2 pegeuinteoperon impact on response to treatment A: randomized, multicenter, phase IV clinical public | KCT0000152 |
| The effects of systemic vitamin D administration on production of interleukin-10 by peripheral blood T cells in asthmatics and controls. - Vitamin D Study | The effects of systemic vitamin D administration on production of interleukin-10 by peripheral blood T cells in asthmatics and controls. - Vitamin D Study | EUCTR2004-002569-19-GB |
| Vitamin D in women with polycystic ovary syndrome | Vitamin D and clomiphene citrate versus clomiphene citrate only for ovulation induction in women with PCOS: A randomized double-blind, placebo-controlled clinical trial | ACTRN12611000780954 |
| Vitamin D and airway obstruction | Efficacy of vitamin D in the improvement of pulmonary function tests in patients with chronic obstructive pulmonary disease | IRCT201103154724N2 |
| Vitamin D Replacement in Statin-Induced Myopathy | Vitamin D Replacement in Statin-Induced Myopathy | NCT01400009 |
| DALI: finding the right dose of Vitamin D for obese pregnant women | DALI dosing study of Vitamin D in obese pregnant women - DALI | EUCTR2010-019252-41-AT |
| Assessment of Vitamin D Supplementation and Immune Function | Assessment of Vitamin D Supplementation and Immune Function | NCT01399151 |
| Rapid vs Maintenance Vitamin D Supplementation in Deficient Children With Asthma to Prevent Exacerbations. | Rapid vs Maintenance Vitamin D Supplementation in Deficient Children With Asthma to Prevent Exacerbations | NCT01395589 |
| Vitamin D Deficiency in Human Immunodeficiency Virus | The effect of Cholecalciferol and dietary advice on Vitamin D levels in participants with Human Immunodeficiency Virus Infection | ACTRN12611000631909 |
| Effect of Vitamin D and Calcium on Genes in the Colon | High vs. Low Calcium Intake in the Presence of High Vitamin D: Effect on Gene Expression in the Colon | NCT00298545 |
| Vitamin D Therapy to Reduce Cardiac Damage Among Vulnerable Hypertensive Patients | Adjunct Vitamin D Therapy as a Means to Reduce the Disparity in Subclinical Target Organ Cardiac Damage Among Vulnerable Hypertensive Patients | NCT01360476 |
| Vitamin D Repletion in Primary Hyperparathyroidism | Randomized Controlled Trial of Vitamin D Repletion Regimens in Primary Hyperparathyroidism | NCT01306656 |
| Vitamin D Supplements for HIV-positive Patients on cART | Vitamin D Supplements for HIV-positive Patients on cART | NCT01295034 |
| Randomized controlled trial for the prevention of colorectal tumor recurrence by vitamin D and calcium supplementation | Randomized controlled trial for the prevention of colorectal tumor recurrence by vitamin D and calcium supplementation - Randomized controlled trial for the prevention of colorectal tumor recurrence by vitamin D and calcium supplementation | JPRN-UMIN000004854 |
| Therapeutic Benefit of Preoperative Supplemental Vitamin D in Patients Undergoing Brain Tumor Surgery | Effect of Single High Dose Vitamin D3 on Peri-operative and Post-operative Complications and Clinical Outcomes in Patients Under Craniotomy for Brain Tumor Resection | NCT03248544 |
| Vitamin D and Breast Cancer Biomarkers in Female Patients | Vitamin D and Breast Cancer Biomarkers | NCT01224678 |
| Therapeutic effect of vitamin D on renal manifestation of systemic lupus erythematosus | The effect of calcitriol on progress and activity of Lupus nephritis | IRCT2013030912762N1 |
| Phase II Pre-operative Vitamin D Supplementation to Prevent Post-thyroidectomy Hypocalcemia | A Phase 2, Placebo-controlled, Randomized Study to Evaluate the Effect of Pre-operative Vitamin D Supplementation on Hypocalcemia Following Total or Near-total Thyroidectomy | NCT01868750 |
| Vitamin D Supplementation and Upper Respiratory Tract Infections in Adolescent Swimmers | Vitamin D Supplementation, Upper Respiratory Tract Infections, Immune and Physical Functions in Adolescent Swimmers | NCT01215682 |
| ROLE OF CALCIUM AND VITAMIN D IN NUTRITIONAL RICKETS AND ITS MANAGEMENT | ROLE OF CALCIUM AND VITAMIN D IN NUTRITIONAL RICKETS AND ITS MANAGEMENT | CTRI/2010/091/000448 |
| Statin/Vitamin D & Migraine Study | Combined Statin and Vitamin D Therapy for Prophylactic Treatment of Episodic Migraine | NCT01225263 |
| Safety Study of an Oral Vitamin D Analog in Postmenopausal Women | A Phase 1B, Double-Blind, Placebo-Controlled, Calcitriol Active-Controlled, Daily-Dose, Escalating-Dose, Safety and Tolerance Study of 2MD Soft Gel Capsules in Normal Healthy Postmenopausal Women | NCT01969656 |
| Effects of Vitamin D Replacement on Hormones Regulating Iron Metabolism in Individuals With Chronic Kidney Disease | Vitamin D Replacement in Chronic Kidney Disease and Its Effects on Iron Homeostasis, Serum Hepcidin, and Hemojuvelin Levels. | NCT01988116 |
| Impact of preoperative Vitamin D3 administration on postoperative hypocalcaemia in patients undergoing total thyroidectomy | Impact of preoperative Vitamin D3 administration on postoperative hypocalcaemia in patients undergoing total thyroidectomy | DRKS00005615 |
| Effect of Vitamin D Supplementation on Blood Pressure in Elderly People | Effect of Vitamin D Supplementation on Blood Pressure in Elderly People | NCT02047799 |
| The effect of vitamin D on cardiovascular outcomes in patients with chronic kidney disease | Randomised controlled trial to assess the effect of vitamin D3 and 1,25-hydroxy vitamin D supplementation on vascular calcification and arterial stiffness in patients with chronic kidney disease | ACTRN12610000815066 |
| Vitamin D in Bronchiolitis Obliterans Syndrome | A Randomized Double Blind Placebo Controlled Trial With Vitamin D to Prevent Bronchiolitis Obliterans Syndrome After Lung Transplantation | NCT01212406 |
| Use of Vitamin D3 for the Treatment of Steroid Resistant Asthmatic Patients | Use of Vitamin D3 for the Treatment of Steroid Resistant Asthmatic Patients | NCT01210521 |
| Extension Study of CTAP101-CL-3001 or CTAP101-CL-3002 | A Long-term Safety and Efficacy Study of CTAP101 Capsules in Subjects With Stages 3 or 4 Chronic Kidney Disease, Secondary Hyperparathyroidism and Vitamin D Insufficiency (Extension of Study CTAP101-CL-3001 or CTAP101-CL-3002) | NCT02282813 |
| A clinical trial to study the effect of supplementation with Vitamin D on the sugar control of diabetic patients | A double-blind, randomized, placebo-controlled trial of the effect of vitamin D3 supplementation on long term glycemic control | CTRI/2015/01/005392 |
| Can Vitamin D Treatment Help Treat Moderate to Severe Atopic Dermatitis in Young Children? the D-Vex Pilot Study | A Phase IV, Double-blind, Randomised, Placebo-controlled Trial to Assess the Efficacy and Safety of Stoss Versus Daily Dose Oral Vitamin D Compared to Placebo for the Treatment of Atopic Dermatitis in Pre-school Aged Children- a Pilot Study | NCT03257215 |
| Intervention Using Vitamin D for Elevated Urinary Albumin Treated With Losartan in Diabetes (IDEAL) | Kidney Disease in Type 2 Diabetes Mellitus: Biomarker Discovery and Novel Therapeutics | NCT02410005 |
| Effect of Vitamin D Supplementation on Muscle Mass and Function | Impact of Vitamin D Supplementation on Strength and Lean Mass Accumulation During an Exercise Intervention | NCT01199926 |
| Analysis of Response of Subjects With Atopic Dermatitis or Psoriasis to Oral Vitamin D3 | Analysis of the Response of Subjects With Atopic Dermatitis to Oral Vitamin D3 by Measurement of Antimicrobial Peptide Expression in Skin and Saliva | NCT00789880 |
| Vitamin D in Pediatric Crohn's Disease | Vitamin D in Pediatric Crohn's Disease | NCT01187459 |
| Activated Vitamin D for the Prevention and Treatment of Acute Kidney Injury | Activated Vitamin D for the Prevention and Treatment of Acute Kidney Injury (ACTIVATE-AKI) | NCT02962102 |
| Vitamin D for Improving Metabolic Control and Depressive Symptoms | Vitamin D for Improving Metabolic Control and Depressive Symptoms in Women With Diabetes; The Sunshine Study | NCT01185574 |
| Clinical Comparative Evaluation of the Use of Photodynamic Therapy in Conjunction With the Use of Vitamin D in Management Stage II Grade B Periodontitis Patients | Clinical Comparative Evaluation of the Use of Photodynamic Therapy in Conjunction With the Use of Vitamin D in Management Stage II Grade B Periodontitis Patients: A Randomized Controlled Clinical Trial. | NCT06700122 |
| Evaluation of the Effectiveness of Vitamin D Supplementation to Pregnant Women and Their Infants in Pakistan. | Evaluation of the Effectiveness of Vitamin D Supplementation to Pregnant Women and Their Infants in Pakistan | NCT01229189 |
| Vitamin D Supplementation in Kidney Disease | Vitamin D Supplementation on Physical and Cognitive Function-Pilot Study | NCT01229878 |
| Comparison of Efficacy of Vitamin D and Vitamin D-calcium Fortified Yogurt Drink in Diabetic Patients | Comparison of Efficacy of Vitamin D and Vitamin D-calcium Fortified Yogurt Drink on Glycemic, Metabolic, Inflammatory, Immunity and Oxidative Stress Markers in Type 2 Diabetes | NCT01229891 |
| The Roles of Vitamin D and Microbiome in Children With Post-acute COVID-19 Syndromes (PACS) and Long COVID | The Roles of Vitamin D and Microbiome in Children With Post-acute COVID-19 Syndromes (PACS) and Long COVID | NCT05633472 |
| Study to Evaluate Safety of Vitamin D Receptor Activators in Patients Ages 0 to 16 With Chronic Kidney Disease Stage 5 Receiving Peritoneal Dialysis Within Current Clinical Practice | A Prospective, Multicenter Study to Evaluate the Safety of Paricalcitol Capsules as Determined by Hypercalcemia in Pediatric Patients Ages 0 to 16 With Chronic Kidney Disease (CKD) Stage 5 Receiving Peritoneal Dialysis (PD) Within Current Clinical Practice | NCT01134315 |
| Does vitamin D treatment have an effect on arterial stiffness and protein in urine in patients with type 2 diabetes and stage 3 chronic kidney disease | Effect of active vitamin D treatment on arterial stiffness and albuminuria in patients with type 2 diabetes and stage 3 chronic kidney disease - Vitamin D in Diabetes Trial (VDDT) | EUCTR2010-018285-23-GB |
| Impact of Vitamin D Therapies on Chronic Kidney Disease | Impact of Vitamin D Therapies on Monocyte Function in Chronic Kidney Disease | NCT01222234 |
| Topical Diclofenac and Vitamin D3 to treat Basal Cell Carcinoma - VitaDi | Topical Diclofenac and Vitamin D3 to treat Basal Cell Carcinoma - VitaDi | EUCTR2010-022410-11-NL |
| Effect of vitamin D supplementation on clinical outcome of ART fresh embryo transplantation in patients with endometriosis complicated with infertility | Effect of vitamin D supplementation on clinical outcome of ART fresh embryo transplantation in patients with endometriosis complicated with infertility | ChiCTR2200066342 |
| Paricalcitol Versus Calcitriol for the Management of Renocardiac Syndrome in Renal Transplant Patients | Phase 4 Study of Paricalcitol and Calcitriol for Reparative Management of Chronic Allograft Dysfunction and Renocardiac Syndrome in Vitamin D Insufficient Renal Transplant Recipients | NCT01265615 |
| Early intervention with supplemental of vitamin D in patients with primary hypertension and vitamin D deficiency | Early intervention with supplemental of vitamin D in patients with primary hypertension and vitamin D deficiency | ChiCTR-TRC-10001142 |
| Vitamin D Pilot Study in Patients With Multiple Sclerosis | Vitamin D Pilot Study in Patients With Multiple Sclerosis | NCT01257958 |
| Vitamin D in HIV-Infected Patients on HAART | Vitamin D, Immune Activation, and Metabolic Abnormalities in HIV-Infected Patients on Antiretroviral Therapy | NCT01250899 |
| Effects of adjunct low-dose vitamin D on relapsing-remitting multiple sclerosis progression: Preliminary findings of a randomized, placebo-controlled trial | Effects of adjunct low-dose vitamin D on relapsing-remitting multiple sclerosis progression: Preliminary findings of a randomized, placebo-controlled trial | IRCT201104166202N1 |
| Topical Vitamin D3, Diclofenac or a Combination of Both to Treat Basal Cell Carcinoma | Topical Vitamin D3, Diclofenac or a Combination of Both to Treat Basal Cell Carcinoma | NCT01358045 |
| Vitamin D and Arterial Function in Patients With Chronic Kidney Disease | Vitamin D and Arterial Function in Patients With Chronic Kidney Disease | NCT01384539 |
| Effect of vitamin D on insulin resistance in type 2 diabetic patients | Effect of vitamin D on insulin resistance of type 2 diabetic patients | IRCT1138901221414N12 |
| The Study of Vitamin D Supplement Effect on Improvement of Glycemic Indexes in Type 2 Diabetics | The Study of Vitamin D Supplement Effect on Improvement of Glycemic Indexes in Type 2 Diabetics | IRCT201011185191N6 |
| Vitamin D deficiency in Pregnancy - A comparison of two treatments | A randomised double blinded interventional trial to determine the effect of 50,000 IU vitamin D supplementation monthly or twice monthly from 20 weeks gestation. | ACTRN12610001044011 |
| A Prospective, randomized , placebo, controlled trial ( double blinded) to assess the potential role of vitamin D treatment in breast cancer patients | A Prospective, randomized , placebo, controlled trial ( double blinded) to assess the potential role of vitamin D treatment in breast cancer patients - Potential role of Vitamin D treatment in Breast Cancer | NL-OMON34378 |
| What is the best way for treatment of vitamin D deficiency and insufficiency? | Comparison of the same dose of oral and parentral vitamin D in treatment of vitamin D insufficiency | IRCT201010174950N1 |
| Role of Vitamin D in Innate Immunity to Tuberculosis | Vitamin D Supplementations as Adjunct to Anti-tuberculosis Drugs in Mongolia | NCT01244204 |
| Effect of Vitamin D Supplement on Osteoprotegin Expression and Disease Progression in Patients With Chronic Kidney Disease Stage 1 and 2 | | NCT01561222 |
| Vitamin D and the Health of Blood Vessels in Kidney Disease | The Impact of Vitamin D Supplementation on Vascular Stiffness and Blood Pressure in Chronic Kidney Disease Patients | NCT01247311 |
| antiproteinuric and antiinflammatory effect of vitamin D comparing with direct renin inhibitor in DKD | Antiproteinuric and Anti-Inflammatory effect of Vitamin D comparing with Direct renin inhibitor in Diabetic Kidney Disease | TCTR20120000008 |
| The VALIDATE-D Study | Evaluating Hormonal Mechanisms for Vitamin D Receptor Agonist Therapy in Diabetes: The VALIDATE-D Study | NCT01635062 |
| Vitamin D, Diet and Activity Study | Vitamin D, Weight Loss, and Breast Cancer Biomarkers | NCT01240213 |
| Vitamin D Deficiency and Atopic Dermatitis | Treatment Of Vitamin D Deficiency And Effect On Atopic Dermatitis Severity | NCT01337635 |
| The Effect of Inactive and Active Vitamin D on Serum Sclerostin/dickkopf1 Levels | Comparisons of the Effect of Inactive and Active Vitamin D on Serum Sclerostin/dickkopf1 Levels | NCT01765010 |
| Vitamin D as a Therapeutic Adjunct in the Stimulant Treatment of ADHD | Vitamin D as a Therapeutic Adjunct in the Stimulant Treatment of ADHD: a Proof-of-concept Study of Stimulant-induced Dopamine Release Using [11C]-PHNO PET in Healthy Humans | NCT03103750 |
| Effectiveness of vitamin D supplement in prevention of recurrent urinary tract infections in children | Effectiveness of vitamin D supplement in prevention of urinary tract infections in children with recurrent urinary tract infection | IRCT2017052221968N2 |
| Prevalence of Serum-Vitamin D Abnormalities, Periodontitis and Anaemia in Patients With Melasma | A Cross Sectional Observational Study | NCT03241381 |
| The effect of vitamin D on prevention of Diabetes | The comparative study of the effect of fortified yogurt with vitamin D, plain yogurt and vitamin D supplement on Glycemic, lipid and anthropometric indices in people with pre-diabetes | IRCT2016102615111N2 |
| Effect of vitamin D deficiency treatment on children with Attention deficit hyperactivity disorder (ADHD) | Effect of vitamin D deficiency treatment on children with Attention deficit hyperactivity disorder (ADHD) | IRCT2017012826998N2 |
| Effect of Calcium-vitamin D supplementation on serum lipids levels of 50-75 years old women | Effect of Calcium-vitamin D supplementation on serum lipids levels of 50-75 years old women | IRCT2017020532406N1 |
| A Study to Evaluate the Effect of Vitamin D on PFS in Indolent Non-Hodgkin's Lymphoma | ILyAD (Indolent Lymphoma And Vitamin D) A Phase III Double Blind, Randomized Trial to Evaluate the Effect of Vitamin D on Progression-free Survival in Patients With Low Tumor-burden Indolent Non-Hodgkin Lymphoma Treated With Rituximab | NCT03078855 |
| The effect of vitamin D in bronchiectasis | Investigation the effect of oral vitamin D compared to placebo in the treatment of brochiectasis | IRCT2017022532771N1 |
| CLINICAL TRIAL FOR THE ADMINISTRATION OF VITAMIN D AS PREVENTION IN TRANSITORY HYPOCALCEMIA IN POSTOPERATORY OF TOTAL THYROIDECTOMY | CLINICAL TRIAL FOR THE ADMINISTRATION OF PREOPERATIVE VITAMIN D AS PREVENTION IN TRANSITORY HYPOCALCEMIA IN POSTOPERATORY OF TOTAL THYROIDECTOMY - AVD | EUCTR2016-005207-30-ES |
| Effect of vitamin D supplementation versus placebo on hypertension in patients with vitamin D deficiency | Effect of vitamin D supplementation versus placebo on hypertension in patients with vitamin D deficiency: a double blind randomized clinical trial | IRCT201703129014N151 |
| The effect of vitamin D supplementation on liver fibrosis in non-alcoholic fatty liver patients | The effect of vitamin D supplementation on serum concentrations of fibrogenic factors, vitamin D receptor and liver-related micro-RNAs in non-alcoholic fatty liver patients | IRCT201405251485N13 |
| An efficacy of oral BCAA and vitamin D to Sarcopenia and bone metabolism in cirrhosis patients with hypoalbuminaemia | An efficacy of oral BCAA and vitamin D to Sarcopenia and bone metabolism in cirrhosis patients with hypoalbuminaemia - Efficacy of oral BCAA and Vitamin D to a cirrhosis patients | JPRN-UMIN000026567 |
| Vitamin D for Muscle Metabolic Function in Cancer Cachexia | The Contribution of Vitamin D to Muscle Metabolic Function in Cancer Cachexia | NCT03144128 |
| Glucose Metabolism Effects of Vitamin D Supplementation in Prediabetes | Randomized Controlled Trial of Vitamin D Supplementation on Glucose Metabolism in Subjects With Components of the Metabolic Syndrome | NCT01479933 |
| Trial of Vitamin D3 Supplementation in Paediatric Asthma | Randomized, Double-blind, Placebo Controlled Trial of Vitamin D3 Supplementation on Clinical, and Subjective Symptoms of Paediatric Asthma | NCT02428322 |
| Vitamin D Raising and Maintaining Blood Serum 25(OH)D3 Levels | Effectiveness of Various Vitamin D Protocols on Raising and Maintaining Blood Serum 25(OH)D3 Levels Over a Three Month Period | NCT03099759 |
| The effect of vitamin D in the prevention of MS disease in first degree relatives of MS patients. | The effect of vitamin D supplementation on the gene expression of interleukins 10, 17A and 6 in the apparently healthy first degree relatives of multiple sclerosis patients compared to apparently healthy people. | IRCT201703033655N3 |
| Effect of vitamin D replacement on functions of blood vessels in patients with vitamin D deficiency after correcting thyroid hormone deficiency | Effect of vitamin D replacement on vascular functions in vitamin D deficient treated hypothyroid patients â?? a randomized double blinded placebo controlled trial | CTRI/2017/03/008267 |
| Vitamin D and irritable bowel syndrome in children | Vitamin D intervention in adolescents with irritable bowel syndrome | PACTR201704002162350 |
| Use of whey protein , vitamin D and training in older adults nursing home. | Whey protein supplementation, vitamin D and resistance training in institutionalized older adults: randomized clinical trial | RBR-42zsbt |
| VASO - Vitamin D and arthroplasty surgery outcomes | A prospective, randomised-controlled feasibility study investigating the benefit of screening for Vitamin D deficiency in a pre-operative elective arthroplasty setting | ISRCTN14533082 |
| The Correlation Between Anemia of Chronic Diseases, Hepcidin and Vitamin D in IBD Patients | The Correlation Between Anemia of Chronic Diseases, Hepcidin and Vitamin D in IBD Patients | NCT03145896 |
| CLA and Vitamin D on Protein Turnover | Randomized Controlled Trial to Evaluate the Independent and Combined Effects of Conjugated Linoleic Acids and Vitamin D on Muscle Protein Turnover in Older Adults | NCT03115775 |
| Magnesium and Vitamin D Supplementation and Cardiometabolic Outcomes | Parathyroid Hormone and Cardiometabolic Outcomes in Obesity: Role of Magnesium and Vitamin D Supplementation | NCT03134417 |
| The association between vitamin D and tuberculosis prevalence in China: plasma vitamin D level and vitamin D receptor polymorphisms | The association between vitamin D and tuberculosis prevalence in China: plasma vitamin D level and vitamin D receptor polymorphisms | ChiCTR-EOC-17011126 |
| vitamin D on the course of pneumonia | Evaluation of the effect of vitamin D on the course of pneumonia in patients admitted of Shahid Beheshti Hospital in 2014-2015 | IRCT201511023576N3 |
| The effects of interval training and vitamin D on symptoms of premenstrual syndrome | Comparison of the effects of interval training and vitamin D on symptoms of premenstrual syndrome in non-athlete females | IRCT2016080420465N5 |
| Oral Vitamin D Substitution Weekly or Monthly and Adherence | Oral Vitamin D Substitution Weekly or Monthly - Which Procedure Leads to Highest Adherence? A Prospective Intervention Study in Outpatient Care | NCT03141593 |
| The Relationship Between Vitamin D and Hepatitis B Virus Replication | Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation | NCT03068767 |
| Cholecalciferol Supplementation in Restless Leg Syndrome in Patients With Chronic Kidney Disease | Evaluation of Cholecalciferol Supplementation in Chronic Kidney Disease Patients With Restless Leg Syndrome | NCT03063190 |
| The effect of vitamin D supplement on airway function in asthma | Investigation the effect of vitamin D supplement on airway function in mildto moderate asthma with vitamin D deficiency in 2016-2017 | IRCT2016112731129N1 |
| The Assessment of the Effect of Vitamin D Supplementation on Inflammatory and Endothelial Factors in the Patients With Type 2 Diabetes . | The Assessment of the Effect of Vitamin D Supplementation on the Serum of AGES and Endothelialy Factors and Gene Expression of Glyoxalase Enzyme and YKL-40 Factor in PBMC Cells in the Patients With Type 2 Diabetes . | NCT03008057 |
| The effect of vitamin D supplementation on reproductive outcomes | A clinical trial to compare the effect of vitamin D supplementation on outcomes of assisted reproduction techniques in infertile women | IRCT2015111124999N1 |
| Effect of supplementation in treatment of patients with polycystic ovary syndrome | Clinical trial of the effect of vitamin D supplementation compared with the placebo on gene expression related to insulin, inflammation and lipid in patients with polycystic ovary syndrome | IRCT201701025623N99 |
| Effect of vitamin supplementation on pulmonary fibrosis patients | Effect of supplementation of vitamin D, C and E on the lung functional tests, level of hs-CRP, ESR, TGFß1 and antioxidant status in Idiopathic Pulmonary Fibrosis patients | IRCT201612202365N15 |
| Effect of supplementation in treatment of patients with diabetic hemodialysis | Clinical trial of the effect of vitamin D supplementation compared with the placebo on gene expression related to inflammation and oxidative stress in patients with diabetic hemodialysis | IRCT201701035623N101 |
| Effect of supplementation in treatment of maintenance methadone treatment patients | Clinical trial of the effect of vitamin D supplementation compared with the placebo on mental health parameters and metabolic profiles in maintenance methadone treatment patients | IRCT201701035623N102 |
| Vitamin D Supplementation and Neurocognition | The Effect of Vitamin D Supplementation on Neurocognitive Function in Older Subjects | NCT03019120 |
| Role Of Vitamin D In Reproductive Success Following Intra Uterin Insemination In Polycystic Ovary Syndrome Patients | Role Of Vitamin D In Reproductive Success Following Intra Uterin Insemination In Polycystic Ovary Syndrome Patients | IRCT201104216246N1 |
| The effect of vitamin D supplement on treatment and prevention of Coronary Heart Disease | Clinical trials to investigate the effect of vitamin D supplementation on serum levels of heat shock protein 60 in patients with coronary heart disease | IRCT201612122365N14 |
| vitamin D supplementation in postmenopausal women with periodontitis | Impact of Vitamin D supplementation in postmenopausal women with stage II periodontitis after nonsurgical periodontal therapy | CTRI/2024/11/076146 |
| Vitamin D supplementation in strategies children with low levels of vitamin D | Optimal vitamin D supplimentation strategies for vitamin D deficient Indian childrens | CTRI/2017/01/007681 |
| Effect of Milk Protein and Prebiotics in Combination With Vitamin D on Innate Immunity in Elderly People | A Nutritional Intervention Study to Evaluate the Effect of Milk Protein and Prebiotics in Combination With Vitamin D on Innate Immunity in Elderly People | NCT03026244 |
| Effects of Vitamin D on Moderate to Severe Periodontitis | Effects of Vitamin D on Chronic Periodontitis | NCT03044886 |
| Effect of supplementation in treatment of women with polycystic ovary syndrome | Clinical trial of the effect of multi mineral-vitamin D supplementation compared with the placebo on metabolic profiles in women with polycystic ovary syndrome | IRCT201701165623N103 |
| Effect of high dose vitamin D on blood glucose in critically ill patients | Comparing effect of high dose vitamin D and placebo on insulin resistance in critically ill patients | IRCT2014061218069N1 |
| The Impact of Vitamin D Deficiency on Hypocalcaemia Following Total Thyroidectomy | The Impact of Vitamin D Deficiency on Hypocalcaemia Following Total Thyroidectomy | NCT03063060 |
| The Supplementation effect of vitamin D on arterial function in patients with type 1 diabetes | The Supplementation effect of vitamin D on endothelial function in patients with type 1 diabetes | IRCT2016112331062N1 |
| Effect of Vitamin D Supplementation on nasal polyp relaps | Assessment of the effect of Vitamin D Supplementation on recurrence rate of nasal polyposis after endoscopic sinus surgery : A Triple Blinded Randomized Controlled Trial | IRCT201608043186N8 |
| Vitamin D Repletion and Maintenance in IBD: How Much and How Often | A Vitamin D Dosing Strategy for Adequate Repletion and Maintenance in IBD Patients With Minimal Disease Activity | NCT03053414 |
| A STUDY ON CHILDREN SUFFERING FROM NUTRITIONAL RICKETS AGED 6 MONTHS TO 5 YEARS COMPARING A LOWER DOSE OF VITAMIN D GIVEN AS A SINGLE ORAL DOSE FOR TREATMENT (90,000IU) WITH THE STANDARD DOSE (3,00,000 IU) | TO COMPARE THE EFFICACY OF 90,000 IU AND 3,00,000 IU ORAL SINGLE DOSE VITAMIN D FOR TREATMENT OF NUTRITIONAL RICKETS IN CHILDREN AGED 6 MONTHS TO 5 YEARS- A RANDOMIZED CONTROLLED TRIAL | CTRI/2017/02/007791 |
| Effect of supplementation in treatment of patients with gestational diabetes | Clinical trial of the effect of combined omega-3 fatty acids and vitamin D supplementation compared with the placebo on metabolic profiles and pregnancy outcomes in patients with gestational diabetes | IRCT201701305623N106 |
| Clinical application and immunological mechanism of vitamin D supplementation in repeated implantation failure | Clinical application and immunological mechanism of vitamin D supplementation in repeated implantation failure | ChiCTR-IPC-17010606 |
| Effects of vitamin D3 supplementation on intramyocellular lipids in adults | Effects and mechanism of vitamin D3 supplementation on intramyocellular lipids in adults | ChiCTR-IIR-17010604 |
| Vitamin D and chronic urticaria | Effect of vitamin D on clinical outcome and biochemical profile in patients with vitamin D-deficient chronic urticaria- a randomized placebo controlled trial. | CTRI/2017/02/007871 |
| Effect of calcium plus vitamin D supplementation on insulin resistance in patients with poly-cystic ovary syndrome and vitamin D deficiency | Effect of calcium plus vitamin D supplementation on insulin resistance in patients with poly-cystic ovary syndrome and vitamin D deficiency | IRCT2016122625732N10 |
| A Study Evaluating Vitamin D in Allergic Bronchopulmonary Aspergillosis Complicating Asthma | A Study Evaluating Vitamin D in Allergic Bronchopulmonary Aspergillosis Complicating Asthma | NCT03133299 |
| A randomized double-blind placebo controlled trial of Vitamin D supplementation in asthmatic children | A randomized double-blind placebo controlled trial of Vitamin D supplementation in asthmatic children | TCTR20170422001 |
| Vitamin D fortified cereal based snack supplementation among adolescents | Vitamin D fortified food- an approach to improve vitamin D status, bone markers, quality of life and cognitive ability among adolescents - VIDFORTC | CTRI/2017/04/008408 |
| Building bone from blood: The effect of vitamin D on circulating bone-forming cells | A randomised, double blind, placebo-controlled trial to determine the effect of vitamin D supplementation on the number of Circulating Osteo-Progenitor (COP) cells in vitamin D-deficient individuals | ACTRN12617000570381 |
| Prevention of endothelial dysfunction in patients with type 2 diabetes | Simultaneous use of chromium picolinate and vitamin D reconstruction or prevention of endothelial dysfunction in patients with type 2 diabetes by examining the pattern of changes in metabolic markers of oxidative stress, inflammation and endothelial dysfunction | IRCT2017052034038N1 |
| Effect of Vitamin D Supplementation on Metabolic Parameters of Patients With Psoriasis | Effect of Vitamin D Supplementation on Metabolic Parameters of Patients With Moderate to Severe Psoriasis | NCT02271971 |
| Importance of Dosing Regimen for the Effect of Vitamin D Supplementation | Importance of Dosing Regimen for the Effect of Vitamin D Supplementation | NCT03272126 |
| Effect of supplementation in treatment of women with gestational diabetes | Clinical trial of the effect of multi mineral-vitamin D supplementation compared with the placebo on metabolic profiles in women with gestational diabetes | IRCT201706045623N116 |
| Effects of combined intake of low-fat milk and vitamin D supplement for the prevention of stress fractures in athletes | Effects of combined intake of low-fat milk and vitamin D supplement for the prevention of stress fractures in athletes - Effects of combined intake of low-fat milk and vitamin D supplement for the prevention of stress fractures | JPRN-UMIN000027854 |
| Comparison of the effect of administration Calcium-Vitamin D and Metformin in Regulating Menstrual Cycle in person with an ovulation | Comparison of the effect of administration Calcium-Vitamin D and Metformin in Regulating Menstrual Cycle in Polycystic Ovarian Syndrome | IRCT201705084850N4 |
| A Randomized Trial of Vitamin D Supplementation With or Without Vitamin A in Stem Cell Transplantation | A Randomized Double Blinded Trial of Vitamin D Supplementation With or Without Vitamin A Supplementation in Allogeneic Stem Cell Transplantation | NCT03202849 |
| The Effect of Supplementation of Vitamin D Deficiency in Older People With Acute Hip Fracture: | A Prospective Randomized Trial Comparing the Effects of 2 Vitamin D Supplementation Regimens in Elderly People After Hip Fracture Surgery | NCT03213886 |
| The effect of taking Vitamin D on braces treatment speed in persons with less vitamin D in their body | The effect of Systemic Administration of Cholecalciferol on the Rate of Orthodontic Tooth Movement of Maxillary Canines among subjects with Vitamin D deficiency- A Randomized Control Clinical Trial - NIL | CTRI/2024/11/076903 |
| Vitamin D Supplementation in Vitamin Deficient Women Undergoing IVF Cycles: Does it Affect the Fertility Outcome? | Vitamin D Supplementation in Vitamin Deficient Women Undergoing ICSI Cycles: Does it Affect the Fertility Outcome? | NCT03209856 |
| Does resistance exercise with/without a nutrition supplement improve bone and muscle strength in women? | Efficacy of a targeted resistance exercise programme with and without leucine and vitamin D-enriched protein supplementation for preventing bone loss and improving muscle strength in older women: a randomised controlled trial | ISRCTN12419961 |
| Therapeutic regimens for Vitamin D3 deficiency | Comparison of two therapeutic regimens Vitamin D3 deficiency in the first trimester of pregnancy on the level of vitamin D3 in the second trimester of pregnancy | IRCT2016040527227N1 |
| A clinical trial to study the effect of Vitamin D in patients of systemic lupus erythematosus. | Vitamin D as an adjunct in the treatment of systemic lupus erythematosus-a double blind randomized control trial. | CTRI/2017/07/009033 |
| Dose the Locomotion training improve physical function for elderly people with vitamin D supplementation dramatically? | Dose the Locomotion training improve physical function for elderly people with vitamin D supplementation dramatically? - Exercise and vitamin D for elderly | JPRN-UMIN000028229 |
| The effect of whey protein, calcium, and vitamin D-fortified synbiotic yogurt in overweight and obese patients with metabolic syndrome | Evaluating the effect of whey protein, calcium, and vitamin D-fortified synbiotic yogurt compared with low-fat conventional yogurt on anthropometric indices, insulin resistance, lipid profiles, inflammatory markers and appetite status in overweight and obese patients with metabolic syndrome following the balanced hypocaloric diet. | IRCT2017050633836N1 |
| The effect of vitamin D on the improvement of abdominal pain | The effect of different levels of vitamin D on the supply of children with inflammatory bowel disease | IRCT201011075123N1 |
| Effects of Vitamin D Supplementation on Immune Function in Infants | Effects of Vitamin D Supplementation on Immune Function in Infants | NCT04461665 |
| A randomized, double-blind, placebo-controlled, double-dummy study to determine the safety/tolerability of a simultaneous subcutaneous treatment of BM41 and vitamin D3 in patients with moderate to severe allergic rhinitis/ rhinoconjunctivitis caused by birch pollen. | A randomized, double-blind, placebo-controlled, double-dummy study to determine the safety/tolerability of a simultaneous subcutaneous treatment of BM41 and vitamin D3 in patients with moderate to severe allergic rhinitis/ rhinoconjunctivitis caused by birch pollen. - BM41ViD | NL-OMON45256 |
| Effect of Vitamin D supplementation in treatment of First episode Psychosis | Effect of Vitamin D supplementation in treatment of First Episode Psychosis: A Randomised double blind, placebo controlled study | CTRI/2017/07/009136 |
| Effects of vitamin D supplementation in type 1 diabetes mellitus patients | Effects of vitamin D supplementation in type 1 diabetes mellitus patients: a non-randomised study | ISRCTN32601947 |
| Comparison of Sunlight Exposure and Vitamin D Supplementation on Serum 25-hydroxyvitamin D Levels | Comparison of Sunlight Exposure and Oral Vitamin D Supplementation on Serum 25-hydroxyvitamin D Concentration and Metabolic Markers in Korean Young Adults: a Randomized Clinical Trial | NCT03310242 |
| Effect of supplementation in treatment of schizophrenia patients | Clinical trial of the effect of combined probiotic and vitamin D supplementation compared with the placebo on Clinical symptom and metabolic profiles in schizophrenia patients | IRCT2017072333551N2 |
| A clinical trial to study the effect of vitamin D in patients with gum diseases. | A Randomized Controlled Trial for reinforcement of epithelial barrier function by vitamin D induction of the antimicrobial peptide cathelicidine. A novel therapeutic approach in Chronic periodontitis. | CTRI/2017/08/009193 |
| Study on supplementing children with abnormal body movements with a oral Vitamin | Effect of high dose Vitamin D supplementation on Vitamin D status of pre-pubertal children on anti-epileptic drugs - A Randomised Controlled Trial | CTRI/2017/08/009234 |
| Homoeopathy for Vitamin D deficiency: a public health program | Public health program to assess the prevalence of Vitamin-D deficiency and its management with homoeopathic medicine - NIL | CTRI/2025/04/085258 |
| Effect of supplementation in treatment of women with gestational diabetes | Clinical trial of the effect of combined probiotic and vitamin D supplementation compared with the placebo on metabolic profiles in women with gestational diabetes | IRCT201706075623N119 |
| A study to compare two different doses of vitamin D supplementation in children with nephrotic syndrome | Comparative efficacy of two different doses of daily vitamin D supplementation in children with nephrotic syndrome: A randomized controlled trial | CTRI/2017/08/009339 |
| An intervention to examine the effect of vitamin D on urine protein levels in type 2 diabetes | Intervention using vitamin D for Elevated urinary ALbumin in diabetes (IDEAL-2) | ISRCTN86739609 |
| Vitamin D supplementation in paediatric inflammatory bowel disease | Vitamin D supplementation in paediatric inflammatory bowel disease: A randomised controlled trial to determine effect of vitamin D status and supplementation method on serum 25-hydroxyvitamin D levels | ACTRN12617000836336 |
| Effect of supplementation in treatment of women with gestational diabetes | Clinical trial of the effect of multi mineral-vitamin D supplementation compared with the placebo on pregnancy outcomes in women with gestational diabetes | IRCT201704225623N109 |
| Effect of supplementation in treatment of women with polycystic ovary syndrome | Clinical trial of the effect of combined omega-3 and vitamin D supplementation compared with the placebo on metabolic profiles in women with polycystic ovary syndrome | IRCT201704245623N114 |
| Effects of Vitamin D Supplementation on Strength, Bone Density, and Injury Risk in Collegiate Athletes | Vitamin D, Strength, and Bone Density in Collegiate Athletes | NCT03151174 |
| The Impact of Vitamin D Supplementation on Glucose Metabolism in Chinese Women With Former Gestational Diabetes Mellitus | The Impacts of Vitamin D Supplementation on Glucose Metabolism in Chinese Women With Vitamin D Deficiency and Former Gestational Diabetes Mellitus:A Randomised Control Trial | NCT03138616 |
| Effect of supplementation vitamin D in treatment of maintenance methadone treatment patients | Clinical trial of the effect of vitamin D supplementation on gene expression markers related to insulin, inflammation and lipid in maintenance methadone treatment patients | IRCT2017042433551N1 |
| Effect of vitamin D supplementation on metabolic syndrome in elderlies | The Effect of Vitamin D Supplementation on Metabolic Syndrome Indicators among Food In-secured, Vitamin D Deficient ; A Randomised Clinical Trial | IRCT2016121831449N1 |
| Vitamin D Supplementation in IBS | Vitamin D Supplementation in IBS | NCT03148288 |
| The effect of vitamin D supplementation in diabetic dialysis patients | Randomized, double blinded, case-control clinical trial on effect of vitamin D supplementation on metabolic profiles in diabetic Hemodialysis patients | IRCT2017040924625N4 |
| Role of Vitamin D in Androgenetic Alopecia | Role of Vitamin D in Androgenetic Alopecia | NCT03154528 |
| The efficacy of Vitamin D supplementation in the treatment of schizophrenia | The efficacy of Vitamin D supplementation in the treatment of schizophrenia | IRCT201507087373N5 |
| Effect of vitamin D deficiency correction on serum Fibroblast growth factor 23 level | Effect of vitamin D deficiency correction on serum Fibroblast growth factor 23 level in vitamin D deficient patients and comparision with vitamin D deficient patients | IRCT138707171312N1 |
| Effect of Vitamin D supplementation in improving Thyroid disease of mild variety | Impact of Vitamin D Supplementation on Thyroid Function in Subclinical Autoimmune Hypothyroidism - A Randomized Double Blind Placebo Controlled Trial | CTRI/2017/05/008596 |
| The effect of vitamin D3 and calcium supplementation in treatment of postpartum depression | The effect of vitamin D3 and calcium supplementation on depression severity, levels of 25-hydroxy vitamin D, sex hormone estradiol and inflammatory biomarkers (Interleukin 6,Tumor Necrosis Factor alpha) in women with postpartum depression | IRCT2016091416123N9 |
| Changes of metabolism indexes and PTH in hemodialysis patients | Comparison of treatment effect of active vitamin D versus passive vitamin D on bone metabolism indexes and PTH in hemodialysis patients | IRCT2017050723559N12 |
| Role of Vitamin D treatment in women with multiple cysts in ovary(reproductive organ) who have low vitamin D blood levels | Effect of Vitamin D as Add-on Therapy in Vitamin D Deficient Women with Polycystic Ovary Syndrome: A Randomized Double Blind Placebo Controlled Trial. | CTRI/2017/05/008667 |
| The Effect of Vitamin D Supplementation on Disease Activity Markers in Systemic Lupus Erythematosus (SLE) | | NCT01425775 |
| Vitamin D and Its Affect on Growth Rates and Bone Mineral Density Until Age 5 | Supplemental Vitamin D Administered to One Year Old Vitamin D Deficient Infants Until Age 3 and Its Affect on Growth Rates and Bone Mineral Density Until Age 5 | NCT01419821 |
| The effect of vitamin D supplementation on patients with irritable bowel syndrome | Effects of supplementation with vitamin D on clinical outcomes, quality of life, anxiety, serum serotonin (5-hydroxytryptamine), 5-hydroxy-indole acetic acid and ratio of 5-HIAA/ 5-HT in Patient with irritable bowel syndrome the predominant form diarrhea | IRCT201701162709N42 |
| Vitamin D supplementation in adolescents with irritable bowel syndrome: Is it useful? | Vitamin D supplementation in adolescents with irritable bowel syndrome: Is it useful? | PACTR201706002337124 |
| Is Vitamin D Insufficiency and Deficiency Associated With Antepartum and Postpartum Depression? | Is Vitamin D Insufficiency and Deficiency Associated With Antepartum and Postpartum Depression? | NCT02272387 |
| The role of Vitamin D on metabolic and immunology profile of postmenopausal women | The role of Vitamin D on cardiometabolic and immuno-inflammatory profile of postmenopausal women | RBR-4mhs32 |
| A study to assess the effect of vitamin D deficiency correction on platelet counts in immune thrombocytopenia patients. | Impact of treatment of vitamin D deficiency on platelet response in immune thrombocytopenia patients | CTRI/2017/06/008751 |
| Vitamin D supplementation and muscle strength in sarcopenic and obese sarcopenic elderly Lebanese people | Effect of vitamin D supplementation on muscle mass and strength in sarcopenic and obese sarcopenic older Lebanese people | ISRCTN10618249 |
| Effect of steroid on Bone health in children during treatment of initial episode of Nephrotic Syndrome and role of vitamin D and calcium supplementation in them. | Effect of calcium and vit D supplement on bone mineral density(BMD) in children with first episode of nephrotic syndrome. | CTRI/2017/06/008780 |
| Vitamin D and Exercise in Falls Prevention | Effects of Vitamin D and Exercise in Preventing Falls of Elderly Women | NCT00986466 |
| Iron and Vitamin D supplementation for pregnant women | Comprehensive antenatal supplementation on Hb status of pregnant women | CTRI/2019/09/021372 |
| Calcitriol supplementation in Nonalcoholic Fatty Liver Disease | Effect of Calcitriol supplementation on the severity of fatty liver, inflammatory and metabolic biomarkers in patients with non-alcoholic fatty liver with different genotypes of vitamin D receptor | IRCT2017053034222N1 |
| Vitamin D and Microbiota in Cystic Fibrosis | Pilot Study Evaluating the Role of Vitamin D Repletion on Gut and Lung Microbiota in Cystic Fibrosis | NCT02589444 |
| The effect of vitamin D3 supplementation in treatment of Irritable Bowel Syndrome | Evaluating the effect of vitamin D3 supplementation on clinical signs, inflammatory and oxidative stress bio-markers in patients with Irritable Bowel Syndrome: A randomized double blinded clinical trial | IRCT2015042521935N1 |
| A Pilot Study of Vitamin D in Boys With X-linked Adrenoleukodystrophy | A Pilot Study of Vitamin D in Boys With X-linked Adrenoleukodystrophy | NCT02595489 |
| Vitamin D Supplementation and Muscle Characteristics in Trained Subjects | Effects of 12 Weeks of Vitamin D Supplementation on Muscle Characteristics in Trained Subjects | NCT02599675 |
| The Granheim COPD Study - Vitamin D and Strength Training | The Granheim COPD Study: Effects of Vitamin D3-supplementation on the Efficacy of Strength Training in COPD Patients and Healthy Controls - a Double-blinded RCT | NCT02598830 |
| A Study to Investigate the Effect of Vitamin D3 Supplementation on Iron Status in Iron Deficient Women | A Double Blind Randomised Controlled Trial to Investigate the Effect of Vitamin D3 Supplementation on Iron Absorption and Hepcidin Response in Marginally Deficient and Iron Deficient Women | NCT02714361 |
| A Comparison of Capsules and Oral Spray Solution as Methods of Delivering Vitamin D3 and Raising Status | A Comparison of Capsules and Oral Spray Solution as Methods of Delivering Vitamin D3 and Raising Status: a Randomised Crossover Study | NCT02608164 |
| High Dose Vitamin D3 in Crohn's Disease | Impact of High Dose Vitamin D3 Supplementation in Treatment of Crohn's Disease in Remission: A Randomized Double-blind Controlled Study | NCT02615288 |
| Impact of Vitamin D Supplementation on Recurrent Respiratory Infections in Paediatric Primary Care. | Impact of Vitamin D Supplementation on Recurrent Respiratory Infections in Paediatric | NCT02617771 |
| Effect of ingestion of Vitamin D3 on Upper respiratory tract infection of healthy Japanese adult. | Effect of ingestion of Vitamin D3 on Upper respiratory tract infection of healthy Japanese adult. - Effect of Vitamin D3 on Upper respiratory tract infection. | JPRN-UMIN000020169 |
| A study to evaluate the topical switching therapy from combined vitamin D3/corticosteroid to vitamin D3 alone in plaque psoriasis | A study to evaluate the topical switching therapy from combined vitamin D3/corticosteroid to vitamin D3 alone in plaque psoriasis - Topical switching therapy for plaque psoriasis | JPRN-UMIN000019379 |
| Natural vitamin D (cholecalciferol) versus standard care in patients receiving dialysis | Natural vitamin D (cholecalciferol) versus standard care in patients receiving dialysis - The SIMPLIFIED randomised registry trial | ISRCTN15087616 |
| Effect of nutritional vitamin D supplements in hemodialysis patients | Effect of nutritional vitamin D supplements in hemodialysis patients - Nutritional vitamin D supplementation in hemodialysis patients | JPRN-UMIN000020409 |
| Randomized-Controlled Trial of Vitamin D Supplementation in Children with Autism Spectrum Disorder | Randomized-Controlled Trial of Vitamin D Supplementation in Children with Autism Spectrum Disorder - Vitamin D Supplementation in Children with Autism Spectrum Disorder | JPRN-UMIN000020281 |
| Effect of vitamin D3 in the treatment of patients with diabetic neuropathy | The effects of vitamin D3 supplementation on some of metabolic and inflammatory markers in patients with diabetic nephropathy | IRCT201511173140N15 |
| Effect of Vitamin D-biofortified Eggs on Wintertime Serum 25-hydroxyvitamin D in Adults: Randomized Controlled Trial | A Dietary Intervention Study Examining the Effect of Consumption of Vitamin D-enhanced Eggs on Winter-time Vitamin D Status in Adults | NCT02678364 |
| Vitamin D Status in Patients With Severe Sepsis | Vitamin D Status in Patients With Severe Sepsis: A Randomized Clinical Trial | NCT02684487 |
| Vitamin D to Prevent Severe Asthma Exacerbations (Vit-D-Kids Asthma) | Vitamin D to Prevent Severe Asthma Exacerbations | NCT02687815 |
| BEST-D: A trial to identify the best suitable oral daily dose of vitamin D supplement required to optimise blood levels | BEST-D (Biochemical efficacy and safety trial of vitamin D): a dose-finding trial assessing biochemical and vascular effects of high dose vitamin D - BEST-D: Biochemical Efficacy and Safety Trial of Vitamin D(V1.0) | EUCTR2011-005763-24-GB |
| High Dose Oral Versus Intramuscular Vitamin D3 Supplementation In Multiple Sclerosis Patients | Isfahan University of Medical Sciences | NCT02696590 |
| PDT Plus Vitamin D3 for Anal Dysplasia | A Phase I Study of Photodynamic Therapy (PDT) Plus Vitamin D3 for High-grade Anal Dysplasia and Microinvasive Anal Cancer | NCT02698293 |
| Topical Delivery of Vitamin D3 as Vitamin D Supplementation | Topical Delivery of Vitamin D3: A Randomized Controlled Trial (RCT) | NCT02735200 |
| Effect of Vitamin D3 Supplementation in Treatment of Irritable Bowel Syndrome | Effect of Vitamin D3 Supplementation on Clinical Signs, Oxidative Stress and Inflammatory Biomarkers in Patients With Irritable Bowel Syndrome | NCT02579902 |
| Peri-operative Vitamin D Therapy for Hepatectomy | Peri-operative Vitamin D Therapy for Patients With Hepatocellular Carcinoma Receiving Hepatectomy | NCT05650151 |
| Effect of Vitamin D3 Supplementation on Muscle Mass in ICU Patient | Effect of High Dose Vitamin D3 Supplementation on Skeletal Muscle Mass and Body Compositions in Critically Ill Patients With Vitamin D Deficiency | NCT02594579 |
| Rapid Normalization of Vitamin D in Critically Ill Children: A Phase II Dose Evaluation Randomized Controlled Trial | Rapid Normalization of Vitamin D in Critically Ill Children: A Phase II Dose Evaluation Randomized Controlled Trial | NCT02452762 |
| Evaluation of efficacy and safety of fixed dose combination of statin and cholecalciferol for the treatment of hyperlipidemia | Evaluation of efficacy and safety of fixed dose combination of statin and cholecalciferol for the treatment of hyperlipidemia: a randomised, open label, comparative, multicenter study. | CTRI/2015/05/005778 |
| The Effects of Vitamin D on Angiogenic Factors in Women With Polycystic Ovary Syndrome | The Effects of Vitamin D Supplementation on Transforming Growth Factor-beta1 and Vascular Endothelial Growth Factor in Vitamin D-Deficient Women With Polycystic Ovary Syndrome: A Randomized Placebo-Controlled Trial | NCT02460380 |
| The Role of Vitamin D3 and Calcium Supplementation in Attenuating T2DM Severity | The Role of Vitamin D and Calcium Supplementation in the Pathogenesis of Type 2 Diabetes Mellitus | NCT02464462 |
| Cathelicidin and Vitamin D: Impact on Populations At-Risk and With COPD | Cathelicidin and Vitamin D: Impact on Populations At-Risk and With COPD | NCT02464059 |
| Efficacy Study of Vitamin D to Treat Contrast-induced Nephropathy | Efficacy Study of Vitamin D to Treat Contrast-induced Nephropathy | NCT02489240 |
| ?he effect of vitamin D on kidney function in non-diabetic nephropathy patients | Oral Cholecalciferoleffests on proteinuria and urinary TGF-ß1and urinary MCP-1in non-diabetic nephropathy patients on established renin–angiotensin–aldosterone system inhibition | IRCT20151123025202N43 |
| Effects of vitamin D supplement during pregnancy on umbilical cord vitamin D, bone mineral density and anthropometric measurements from birth to two months later | Effects of vitamin D supplement during pregnancy on umbilical cord vitamin D, bone mineral density and anthropometric measurements from birth to two months later | IRCT2015040910327N13 |
| Effect of Vitamin D on Hormonal, Metabolic and Cardiovascular Risk Factors in Patients With Polycystic Ovary Syndrome | The Effect of Colecalciferol (Vitamin D) on Hormonal, Metabolic and Cardiovascular Risk Factors in Patients With Polycystic Ovary Syndrome (PCOS) - a Double Blind Randomised Placebo-controlled Study | NCT02513381 |
| Trial of Vitamin D3 Supplementation in Paediatric Autism | Vitamin D3 for Autism Spectrum Disorder: a Randomized, Double-blind, Placebo-controlled Trial. | NCT02508922 |
| Effect of vitaminD3 or 25(OH)D3 Fortified Dairy on Vitmain D Status and CVD Risk Markers | Fortification of Milk and Butter With Either vitaminD3 or 25(OH)D3: The Effect on Vitamin D Status and Cardiovascular Disease Risk Markers in Humans | NCT02535910 |
| Effectiveness of Vitamin D Supplementation | Effectiveness of Vitamin D Supplementation on Reducing Blood Pressure and Improving Endothelial Function of Pre-menopausal African American Women | NCT02513823 |
| The BreaD Study - Bio-availability of D2 Vitamin Present in Bread | Work Package 5: The Potential Advantages and Limitations of Use of Novel Food-based Solutions for Prevention of Vitamin D Deficiency. Food-based Solutions for Optimal Vitamin D Nutrition and Health Through the Life Cycle (ODIN) | NCT02525003 |
| Effect of vitamin D3 on glycemic control, inflammatory markers and 24hr urine protein in patients with insufficiency and deficiency in serum vitamin D level in type 2 diabetes mellitus | Effect of vitamin D3 on glycemic control, inflammatory markers and 24hr urine protein in patients with insufficiency and deficiency in serum vitamin D level in type 2 diabetes mellitus | IRCT2015081723656N1 |
| Effects of vitamin D supplementation on thyroid function tests in pregnant women | Effects of vitamin D supplementation on thyroid function tests in pregnant women | IRCT201508091312N2 |
| The efficacy of prophylactic oral calcium and vitamin D therapy in controlling early postoperative complications of hypocalcemia in thyroidectomy patients | The efficacy of prophylactic oral calcium and vitamin D therapy in controlling early postoperative complications of hypocalcemia in thyroidectomy patients | IRCT20241023063478N1 |
| The effect of Vitamin D on cardiovascular risk in patients with impaired fasting glucose | The effect of oral Vitamin D supplementation on endothelial function, vascular inflammation, oxidative stress and insulin sensitivity in patients with impaired fasting glucose: A randomised, double blinded, placebo controlled trial - Vitamin D supplementation in impaired fasting glycaemia | EUCTR2014-002766-73-GB |
| Investigation of Vitamin D3 Enriched, Reduced-fat Yellow Cheese Efficacy to Prevent Vitamin D Deficiency | Investigation of Vitamin D3 Enriched, Reduced-fat Yellow Cheese Efficacy to Prevent Vitamin D Deficiency | NCT02543671 |
| Effect of Vitamin D and Omega 3 in treatment of children with enuresis | Effect of Vitamin D, Omega 3 and their combination in treatment of 7-15 years old children with enuresis | IRCT2015062222868N1 |
| A Study Evaluating the Effect of Vitamin D on Clinical Outcome in Autistic Children | A Pilot Study Evaluating the Effect of Vitamin D on Clinical Outcome in Autistic Children | NCT02550912 |
| Change in Free 25(OH)D After High Dose in Vitamin D Deficient Postmenopausal Women | Change in Free 25(OH)D After High Dose in Vitamin D Deficient Postmenopausal Women | NCT02553044 |
| Allergic Rhinitis, Immunotherapy and Vitamin d | Vitamin D Supplementation as an Adjuvant Therapy for Specific Immunotherapy in Patients With Allergic Rhinitis. | NCT02738619 |
| To Study the Nutri-Genomic Response of Vit-D Supplementation in African-Americans | An Eight Week Double Blinded Randomized, Placebo-controlled Trial to Assess the Effect of Two Doses of 100,000 IU Vitamin D3 by Mouth on Select Genetic Responses in Overweight, Hypertensive African-Americans With Hypovitaminosis D | NCT02802449 |
| Effects of Vitamin D and Fish Oil on the Kidney in Hypertensives | Effects of Vitamin D and Fish Oil on the Kidney in Hypertensives | NCT02757872 |
| Prevention of COPD exacerbation by normalizing serum vitamin D3 level. | Study of the effect of vitamine D3 on incidence of exacerbations and infections of ‘chronic obstructive pulmonary disease’ patients (COPD) with serum levels of vitamine D less than 75 nmol/L. | IRCT2016022826816N1 |
| Vitamin D Supplementation During Pregnancy and Bone Status in Children at Birth and at One Year of Age | The Effect of Different Doses of Vitamin D Supplementation During Pregnancy on Bone and Vitamin D Status in Children at Birth and at One Year Age | NCT01060735 |
| The effect of treatment with high dose vitamin D on airway inflammation in non-atopic asthma. | The effect of treatment with high dose vitamin D on airway inflammation in non-atopic asthma. - Vitamin D in non-atopic asthma | NL-OMON32451 |
| Using Ca-41 Methodology to Assess the Impact of Different Vitamin D Supplementation Levels on Postmenopausal Bone Health | Using Ca-41 Methodology to Assess the Impact of Different Vitamin D Supplementation Levels on Postmenopausal Bone Health | NCT01053481 |
| Effects of Vitamin D Dose and Genotype of the Binding Protein in Infants and Children | A Randomized, Controlled Trial of Vitamin D Supplementation in Infants and Children: Effects of Vitamin D Dose and Genotype of the Binding Protein | NCT01050387 |
| Vitamin D Supplementation and Respiratory Index of Severity in Children (RISC) in Pneumonia | The Effects of Vitamin D Supplementation in Respiratory Index of Severity in Children (RISC) of Hospitalized Patients With Community-acquired Pneumonia | NCT02936895 |
| Vitamin D Repletion in Chronic Kidney Disease | The Effect of Vitamin D3 Repletion in Chronic Kidney Disease Stage 3 | NCT00772772 |
| Assessment of Bioimpedance and Vitamin D and LV Mass in PD Patients (FLUID Study) | The Effect of Bio-impedance Analysis and Vitamin D Versus Usual Care on Left Ventricular Mass in Peritoneal Dialysis Patients: a Randomized Controlled Trial | NCT01045980 |
| Prevalence of Vitamin D Deficiency in Type 1 Diabetes Mellitus and Effect of Supplementation on Insulin Requirements | Prevalence of Vitamin D Deficiency in Type 1 Diabetes Mellitus and Effect on Insulin Requirements After Supplementation With Vitamin D-A Pilot Study | NCT01029392 |
| A phase I randomised repeat dose study in healthy volunteers to determine the oral bioavailability of various formulations of vitamin D in combination with the novel penetration enhancer tocopheryl phosphate mix (TPM) | A phase I randomised repeat dose study in healthy volunteers to test various oral formulations of vitamin D in combination with the novel penetration enhancer tocopheryl phosphate mix (TPM), in order to determine the amount of vitamin D that reaches the blood stream. | ACTRN12609001046291 |
| The Effects of Vitamin D Repletion in Vitamin D Deficient Patients With Stage 3 and 4 Chronic Kidney Disease | The Effects of Vitamin D Repletion in Vitamin D Deficient Patients With Stage 3 and 4 Chronic Kidney Disease | NCT01029002 |
| Vitamin D Status in Males in Jerusalem Area and Its Correlation to Parathyroid Hormone (PTH) Level and Bone Mineral Density | | NCT01025128 |
| Vitamin D Treatment to Patients Suffering From Chronic Pain and Vitamin D Hypovitaminosis | A Randomised, Double-blind, Placebo-controlled Study to Check Whether Vitamin D Will Lead to a Decrease in Pain Intensity in Patients Suffering From Chronic Pain and Hypovitaminosis D | NCT01023490 |
| Treatment of acute pain after shingles with vitamin D cream | Treatment of acute herpes zoster neuralgia with high potency vitamin D cream | ACTRN12609001014246 |
| Influence of Vitamin D Treatment on Multi-systemic Functions in Young Men With Vitamin D Deficiency Due to Work Conditions | Prospective, Randomized, Double Blind Placebo Controled Clinical Trial to Assess the Multi- Systemic Effect of Vitamin D Supplementation on Young Men With Vitamin D Deficiency | NCT01016184 |
| Vitamin D Supplementation in Warfighters | Genomics of Vitamin D Supplementation and Warfighter Nutritional Resilience | NCT02954549 |
| Efficacy of Vitamin D Supplementation in Obese Children | Efficacy of Vitamin D Supplementation in Obese Children | NCT02956408 |
| Vitamin D for Chronic Sinusitis | A Randomized, Clinical Trial of a Novel Immunotherapy for Chronic Sinusitis: Vitamin D | NCT01007799 |
| The effects of combining omega-3, vitamin D and protein with exercise on cognition in older people | A multi-faceted intervention to enhance cognition in older people at risk of cognitive decline: the Protein, Omega-3 aNd vitamin D Exercise Research (PONDER) study | ACTRN12616001549415 |
| Effect of Calcium Supplement Particle Size and Vitamin D Supplement on Calcium Retention in Adolescent Girls | The Effect of Particle Size of Calcium Carbonate and Vitamin D on Calcium and Bone Parameters in Adolescent Girls | NCT01005381 |
| Cluster-randomised, Double-Blind, Placebo-Controlled Trial of Vitamin D Supplementation for the Prevention of Influenza and other Respiratory Infections in Sheltered Accommodation (ViDiFlu) - Trial of vitamin D supplementation for prevention of influenza | Cluster-randomised, Double-Blind, Placebo-Controlled Trial of Vitamin D Supplementation for the Prevention of Influenza and other Respiratory Infections in Sheltered Accommodation (ViDiFlu) - Trial of vitamin D supplementation for prevention of influenza | EUCTR2009-010085-35-GB |
| Vitamin D to Improve Glucose Metabolism and Reduce Inflammation in Obese Adolescents | Use of Vitamin D to Improve Glucose Metabolism and Reduce Inflammation in Obese Adolescents on a Standard Weight Loss Program | NCT00994396 |
| Assessment of vitamin D oral supplementationon on insulin resistance, visceral fat and adiponectin in women with polycystic ovary syndrome and hypovitaminosis D | Assessment of vitamin D oral supplementation on insulin resistance, visceral fat and adiponectin in women with polycystic ovary syndrome and hypovitaminosis D | IRCT2016101030248N1 |
| Thiazolidinedione Intervention with vitamin D Evaluation (TIDE) A Multicenter Randomized Double-Blind Placebo-Controlled Trial of a Thiazolidinedione or Placebo and of Vitamin D or Placebo In People With Type 2 Diabetes at Risk For Cardiovascular Disease - TIDE | Thiazolidinedione Intervention with vitamin D Evaluation (TIDE) A Multicenter Randomized Double-Blind Placebo-Controlled Trial of a Thiazolidinedione or Placebo and of Vitamin D or Placebo In People With Type 2 Diabetes at Risk For Cardiovascular Disease - TIDE | EUCTR2008-005030-73-SE |
| A Trial Evaluating Vitamin D Normalization on Major Adverse Cardiovascular-Related Events Among Myocardial Infarction Patients | A Trial Evaluating Vitamin D Normalization on Major Adverse Cardiovascular-Related Events Among Myocardial Infarction Patients (The TARGET-D Study) | NCT02996721 |
| Vitamin D Supplementation Reduces Renin-Angiotensin System Activity in Obesity | Vitamin D Deficiency Augments Renin-Angiotensin System Activity in Obesity | NCT01068418 |
| Nutritional Requirements for Vitamin D in Pregnant Women | Randomized Controlled Trial to Determine the Nutritional Requirement for Vitamin D for Prevention of Deficiency During Pregnancy and in the Early Neonatal Period (D-MAT) | NCT02506439 |
| Effect of vitamin D2 supplementation on serum adiponectin in Thai obese postmenopausal women with vitamin D insufficiency | Effect of vitamin D2 supplementation on serum adiponectin in Thai obese postmenopausal women with vitamin D insufficiency | TCTR20160427002 |
| Effect of vitamin D supplementation to mothers on vitamin D status of exclusively breastfed infants | Vitamin D supplementation to mothers during lactation : Effect on vitamin D levels of exclusively breastfed infants at 6 months - A randomized triple blind placebo controlled trial | CTRI/2016/10/007333 |
| Weekly 30000 IU vitamin D treatment in PCOS patients | A multicentre, Phase III, randomised, double blind, placebo-controlled study to assess the safety and the efficacy of a weekly administered dose of 30,000 IU vitamin D (colecalciferol) in deficient patients diagnosed with PCOS | EUCTR2016-000503-87-HU |
| Optimal Vitamin D3 Supplementation Strategies for Acute Fracture Healing | A Blinded Exploratory Randomized Controlled Trial (RCT) to Determine Optimal Vitamin D3 Supplementation Strategies for Acute Fracture Healing | NCT02786498 |
| Oral Vitamin D Treatment for the Prevention of Hepatocellular Carcinoma | Study of Oral Vitamin D Treatment for the Prevention of Hepatocellular Carcinoma in Patients With Chronic Hepatitis B | NCT02779465 |
| Comparing Inj Vitamin D versus Inj Acyclovir to find which drug is better to treat warts which do not resolve with other treatment options. | Evaluation of efficacy of intralesional Inj. Vitamin D versus intralesional Inj. Acyclovir in the treatment of recalcitrant cutaneous warts: A randomised clinical trial. - NIL | CTRI/2024/12/077629 |
| Does Vitamin D Supplementation Enhance Resolution of Inflammation After Community-acquired Pneumonia? | A Prospective Randomised Placebo-controlled Study of the Influence of Vitamin D Supplementation on Resolution of Inflammation Following Community-acquired Pneumonia | NCT02802722 |
| The Deferasirox-calcium-vitamin D3 Therapy for Postmenopausal Osteoporosis (PMOP) | Phase 2 Study of Deferasirox-calcium-vitamin D3 to Treat Postmenopausal Osteoporosis (PMOP) | NCT02854722 |
| Effect of Different Vitamin D Vitamers on Vitamin D Status | Effect of Different Vitamin D Vitamers on Vitamin D Status and Biomarkers for Bone Health and Cardiovascular Risk in Healthy Humans | NCT02860663 |
| Gene Expression, Metabolomic, Microbiome, and Calcium Metabolism in Response to Varied Vitamin D Dosages | RCT Double Blinded Evaluation of Changes in Gene Expression, Metabolomic, Microbiome, and Calcium Metabolism in Response to Varied Vitamin D Dosages in Adults Who Are Vitamin D Insufficient | NCT02856776 |
| Vitamin D Supplementation improves Vitamin D levels in Type II Diabetic subjects. | Impact of Vitamin D (Cholecalciferol) granules supplementation on serum Vitamin D levels and cardio-metabolic profile of subjects with Type-II diabetes mellitus. | CTRI/2016/08/007130 |
| Effect of High Dose Vitamin D on Cancer Biomarkers and Breast Cancer Tumors | Phase I/II Study Evaluating Safety and Effects of Preoperative High-Dose Vitamin D on the Receptors, Biomarkers and Pathological Characteristics of High Grade DCIS or Invasive Breast Cancer. | NCT02856503 |
| Vitamin D3 Absorption Studies in Healthy Adult Volunteers. | Vitamin D3 Absorption Studies in Healthy Adult Volunteers. | ACTRN12616001027404 |
| High Dose Vitamin D Supplementation in Chronic Spontaneous Urticaria | High Dose Vitamin D Supplementation in Treatment of Chronic Spontaneous Urticaria | NCT02873364 |
| Effect of Vitamin D3 Supplementation on Arterial and Bone Remodeling in Chronic Kidney Disease Patients | Effect of Vitamin D3 Supplementation on Arterial and Bone Remodeling in Chronic Kidney Disease Patients | NCT02999204 |
| A Randomized Control Trial of Vitamin D Prophylaxis in the Prevention of Hypertensive Disorders of Pregnancy | A Randomized Control Trial of Vitamin D Prophylaxis in the Prevention of Hypertensive Disorders of Pregnancy | NCT02920593 |
| Vitamin D and Physical Performance Before and After Intervention and Birth Outcome in Pregnant Somali and Swedish Women | Vitamin D and Physical Performance Before and After Intervention and Birth Outcome in Pregnant Somali and Swedish Women | NCT02922803 |
| Individualized Response to Vitamin D Treatment Study | Multi Ethnic Study of Atherosclerosis Individualized Response to Vitamin D Treatment Study | NCT02925195 |
| The effects of vitamin D on neuroimaging of autism spectrum disorder | The effects of vitamin D on neuroimaging of autism spectrum disorder | ChiCTR-IOR-17012846 |
| Dose-dependent Anti-inflammatory Effects of Vitamin D in a Human Gingivitis Model | Dose-dependent Anti-inflammatory Effects of Vitamin D in a Human Gingivitis Model | NCT00779909 |
| Correlation Between Vitamin D Status and Bone Mineral Density in Patients With Hemophilia | Correlation Between Vitamin D Status and Bone Mineral Density in Patients With Hemophilia | NCT01090206 |
| Study to Investigate the Effects of Vitamin D Administration on Plasma Renin Activity in Patients With Stable Chronic Heart Failure | An Open-label, Blinded-endpoint, Randomized, Prospective Trial Investigating the Effects of Vitamin D Administration on Plasma Renin Activity in Patients With Stable Chronic Heart Failure | NCT01092130 |
| Role of Vitagliptin and Vitamin D in the Treatment of Non Alcoholic Fatty Liver Disease (NAFLD) | Role of Vitagliptin and Vitamin D in the Treatment of Non Alcoholic Fatty Liver Disease (NAFLD) | NCT01083992 |
| The Beneficial Effect of Vitamin D Supplement to Peg Interferon Alpha 2a or to Telbivudine Monotherapy in Patients With Chronic Hepatitis B Virus (HBV) Infection | The Beneficial Effect of Vitamin D Supplement to Peg Interferon Alpha 2a or to Telbivudine Monotherapy in Patients With Chronic HBV Viral Infection | NCT01083251 |
| Effects of vitamin D supplementation in coronary artery disease patients with postchallenge hyperglycemia and vitamin D deficiency on endothelial function and insulin sensivitivity | Effects of vitamin D supplementation in coronary artery disease patients with postchallenge hyperglycemia and vitamin D deficiency on endothelial function and insulin sensivitivity | EUCTR2009-015776-95-AT |
| Vitamin D Levels in Stage IV Colorectal Cancer Patients | Vitamin D Levels in Stage IV Colorectal Cancer Patients: A Phase II Study | NCT01074216 |
| The Effect of Vitamin D Fortification of Bread and Milk in Danish Families | The Effect of Vitamin D Fortification of Bread and Milk in Danish Families | NCT01184716 |
| A Pilot Study to Examine the Effects of Vitamin D Supplementation on Mitochondrial Bioenergetics in Older Adults | A Pilot Study to Examine the Effects of Vitamin D Supplementation on Mitochondrial Bioenergetics in Older Adults - An EVIDENCE Sub-Study | NCT02445066 |
| Vitamin D and Resistance Exercise Training; Effects on Musculoskeletal Health in Frail Older Men and Women | Influence of Combined Vitamin D Supplementation and Resistance Exercise Training on Musculoskeletal Health in Frail Older Men and Women (EXVITD) | NCT02467153 |
| Effects of Vitamin D Supplementation on Postoperative Rehabilitation in Hip and Knee Osteoarthritis Patients | Effects of Vitamin D Supplementation on Postoperative Rehabilitation in Hip and Knee Osteoarthritis Patients: a Multicenter Randomized Controlled Trial | NCT06747559 |
| Vitamin D and Cocaine Administration | Testing Restoring Effects of Vitamin D on the Dopamine System: A Human Laboratory Study Among Cocaine Users. | NCT04826133 |
| Comparison of Serum Calcium Level Between Preoperative Vitamin D and Non-vitamin D Regimen of Total Parathyroidectomy in End-stage Renal Failure Patients in Rajavithi Hospital | Comparison of Serum Calcium Level Between Preoperative Vitamin D and Non-vitamin D Regimen of Total Parathyroidectomy in End-stage Renal Failure Patients in Rajavithi Hospital | NCT04967469 |
| To find the minimum dose of vitamin D required in pregnancy for good maternal and neonatal health | Vitamin D and calcium nutrition in pregnancy-evaluation of optimal supplementation dose of vitamin D during antenatal period | CTRI/2010/091/000352 |
| Effect of vitamin D on diabetes prevention | Effect of vitamin D supplementation on glucose status, lipid profiles and inflammatory factors in mothers with a history of gestational diabetes | IRCT138902113840N1 |
| A study of the effect of vitamin D supplementation in pregnant women, on the growth and biochemical features of the newborn baby and infant. | Vitamin D and calcium nutrition: deficiency and evaluation of supplementation. | CTRI/2010/091/000499 |
| Vitamin D Supplementation in Healthy Adolescents | Clinical Trial of Vitamin D Supplementation in Healthy Adolescents | NCT01126671 |
| Effects of Vitamin D Supplementation on Lung Function in an Acute Pulmonary Exacerbation of Cystic Fibrosis | | NCT00788138 |
| Sun exposure for vitamin D sufficiency in skin type V | Sun exposure levels for provision of vitamin D sufficiency in people of skin type V living in the UK | ISRCTN07565297 |
| Calcitriol Supplementation in COVID-19 Patients | A Randomized Open Label Study to Evaluate Efficacy of Calcitriol Supplementation in COVID-19 Patients With Vitamin D Deficiency | NCT05415254 |
| Influence of Vitamin D on Inflammatory Bowel Disease Remission | | NCT01121796 |
| Vitamin D supplementation for prevention of placenta mediated pregnancy complications. - Prevention of pregnancy complications with vitamin D | Vitamin D supplementation for prevention of placenta mediated pregnancy complications. - Prevention of pregnancy complications with vitamin D | EUCTR2010-019483-37-SE |
| Vitamin D and Inflammatory Cytokine Levels After Acute Myocardial Infraction (MI) | Intervention Study Measuring Inflammatory Cytokine Levels in the Serum of Patients Who Underwent an Acute MI, and the Influence of Vitamin D on These Levels | NCT01115842 |
| Vitamin D in Pregnancy and Lactation | Vitamin D Dose-response Study Throughout Pregnancy and Lactation | NCT01112891 |
| The role of vitamin D in the treatment of nerve pain in diabetes | Vitamin D as an analgesic for neuropathic pain in type 2 diabetes | ACTRN12610000322033 |
| A randomised controlled trial of vitamin D supplementation vs placebo on cognitive and emotional outcomes | A randomised controlled trial of vitamin D supplementation vs placebo on cognitive and emotional outcomes in healthy volunteers | ACTRN12610000318088 |
| Thiazolidinedione Intervention With Vitamin D Evaluation (TIDE) | Thiazolidinedione intervention with vitamin d evaluation (TIDE) a multicenter randomized double-blind placebo-controlled trial of a thiazolidinedione or placebo and of vitamin d or placebo in people with type 2 diabetes at risk for cardiovascular disease. | PER-005-10 |
| Vitamin D treatment effect on retinal nerve fiber loss after optic neuritis. | Vitamin D treatment effect on retinal nerve fiber loss after optic neuritis. | NL-OMON26942 |
| A Psoriasis Plaque Test Comparing Eight Different Formulations of Vitamin D Analogues for the Treatment of Psoriasis | | NCT01105286 |
| A clinical trial with Teriparatide: a recombinant human parathyroid hormone) and Calcium and Vitamin D Supplementation in Post-menopausal Women with Osteoporosis. | Evaluation of Safety and Efficacy of Teriparatide in Addition to Calcium And Vitamin D Supplementation in Comparison to Calcium and Vitamin D Supplementation Alone, in Increasing The Bone Mineral Density in Post-menopausal Women with Osteoporosis | CTRI/2010/091/000242 |
| Impact of Vitamin D in Rheumatoid Arthritis | Impact of Vitamin D in Modulating Disease Activity and Inflammatory Mediators in Rheumatoid Arthritis | NCT06716476 |
| Vitamin D in OUD: Exploration of Alterations on the Dopamine D2/D3 Receptor System | Exploration of Baseline Alterations on the Dopamine D2/D3 Receptor System and the Effects of Vitamin D in Opioid Use Disorder: an [11C]-PHNO Study | NCT06261905 |
| Influence of Vitamin D on Vascular Function in Adolescents and Young Adults With Type 1 Diabetes | Influence of Vitamin D on Vascular Function in Adolescents and Young Adults With Type 1 Diabetes | NCT01103817 |
| Vitamin D Supplementation and Acute Respiratory Infection in Older Long-Term Care Residents | Vitamin D Supplementation and Acute Respiratory Infection in Older Long-Term Care Residents | NCT01102374 |
| Comparison of two topical vitamin D analogues in form of ointments in combination with phototherapy in treatment of psoriasis | Comparative evaluation of topical calcipotriol plus Narrow Band ultraviolet B phototherapy versus topical calcitriol plus Narrow Band ultraviolet B phototherapy in treatment of psoriasis - Calcipotriol vs calcitriol with NBUVB in psoriasis treatment | CTRI/2022/06/043333 |
| peginterferon alfa-2b and ribavirin plus Vitamin D for chronic hepatitis C : An open-label randomized controlled trial. | peginterferon alfa-2b and ribavirin plus Vitamin D for chronic hepatitis C : An open-label randomized controlled trial. - Trial D | JPRN-UMIN000003721 |
| NVD in Hypothermic HIE Neonates | N-Acetylcysteine and Vitamin D in Infants With Hypoxic Ischemic Encephalopathy Treated With Hypothermia | NCT04643821 |
| A clinical trial to study effect of local injection of vitamin D3 on rate of tooth movement in patients undergoing fixed orthodontic treatment. | â?? EVALUATION OF EFFECTIVENESS OF LOCALLY INJECTED CALCITRIOL IN ALTERING RATE OF ORTHODONTIC TOOTH MOVEMENT DURING CANINE RETRACTION â?? RANDOMISED CONTROLLED CLINICAL TRIAL â?? | CTRI/2020/09/027568 |
| Vitamin D and T-Regulatory Cells in Coronary Artery Disease | Vitamin D and T-Regulatory Cells in Coronary Artery Disease | NCT01183962 |
| Vitamin D Supplementation in CAD and Postchallenge Hyperglycemia | Effects of Vitamin D Supplementation in Coronary Artery Disease Patients With Postchallenge Hyperglycemia and Vitamin D Deficiency on Endothelial Function and Insulin Sensitivity | NCT01183442 |
| Compare the Efficacy of Cinacalcet vs Traditional Vitamin D for Secondary Hyperparathyroidism (SHPT) Among Subjects Undergoing Hemodialysis | A Multicenter, Randomized, Open Label Study to Compare the Efficacy of Cinacalcet Versus Traditional Vitamin D Therapy for Management of Secondary Hyperparathyroidism Among Subjects Undergoing Hemodialysis | NCT01181531 |
| Randomized, controlled, trial for Vitamin D3 injection in the treatment of vitamin D deficiency in obese patients with type 2 diabetes mellitus after metabolic surgery | Randomized, controlled, trial for Vitamin D3 injection in the treatment of vitamin D deficiency in obese patients with type 2 diabetes mellitus after metabolic surgery | ChiCTR1800016459 |
| Evaluation of effect of different type of vitamin D on biochemical markers of osteopenia of Prematurity | Comparison of Calcitriol and Cholecalciferol on biochemical markers of Metabolic Bone Disease in very low birth weight infants | IRCT20111206008307N28 |
| Vitamin D Supplementation and Physical Function in Older Adults | Vitamin D Supplementation, Skeletal Muscle Gene Expression, and Physical Performance in Older Adults | NCT01179503 |
| Vitamin D3: Identification of central nervous system targets using high-technology functional MRI (D-LIGHTFUL) | Vitamin D3: Identification of central nervous system targets using high-technology functional MRI (D-LIGHTFUL) - D-LIGHTFUL | NL-OMON48648 |
| Predictive value of frailty on postoperative function and living status of elderly orthopedic patients and the effect of vitamin D intervention | Predictive value of frailty on postoperative function and living status of elderly orthopedic patients and the effect of 1-25-hydroxyvitamin D intervention | ChiCTR1800018840 |
| VItamin D Effect on Osteoarthritis Study | Does Vitamin D Supplementation Prevent Progression of Knee Osteoarthritis? A Randomised Controlled Trial | NCT01176344 |
| Vitamin D Supplementation in Chronic Rhinosinusitis With Nasal Polyps | Vitamin D Supplementation in Chronic Rhinosinusitis With Nasal Polyps | NCT01185808 |
| Daily Vitamin D Supplementation Compared to a Loading Dose and Monthly Supplementation in Elderly Nursing Home Residents | Vitamin D Supplementation in Elderly Nursing Home Residents: Daily Supplementation Compared to a Loading Dose an Monthly Supplementation, a Randomised Trial | NCT01168544 |
| Vitamin D in Sepsis - A Randomised Control Trial | Calcitriol in Sepsis Patients - A Randomised Control Trial - CalSARCT | CTRI/2019/01/017066 |
| Using Different Doses of Active Vitamin D Combined With Neutral Phosphate in Children With X-linked Hypophosphatemia | Comparing the Effectiveness of High or Low Dose of Active Vitamin D Combined With Neutral Phosphate in Children With X-linked Hypophosphatemia | NCT03820518 |
| Vitamin D3 in Obesity: Identification of Central Nervous System Targets Using High-Technology Functional MRI | Vitamin D3 in Obesity: Identification of Central Nervous System Targets Using High-Technology Functional MRI | NL-OMON26821 |
| Vitamin D in Vulnerable Adults (VIVA-VA) | Vitamin D in Vulnerable Adults | NCT01170273 |
| Vitamin D and Osteoporosis Prevention in Elderly African American Women | Vitamin D and Osteoporosis Prevention in Elderly African American Women: A 4-year Randomized, Double-blind, Placebo-controlled Study to Investigate the Effect of Vitamin D Status in Elderly African American Women | NCT01153568 |
| The effects of prenatal vitamin D supplementation on child health | Effects of prenatal vitamin D supplementation on respiratory and allergic phenotypes and bone density in the first three years of life | ISRCTN68645785 |
| High Dose Vitamin D Study | Study of High-dose Vitamin D Supplementation in Stage-4 Colorectal Cancer Patients | NCT01150877 |
| Clinical trial of zoledronic acid in children and adolescents with Duchenne muscular dystrophy | Open label, randomized clinical trial of zoledronic acid (Aclasta) versus vitamin D plus calcium in children and adolescents with Duchenne muscular dystrophy, to assess change in lumbar spine bone density over 12 months | ACTRN12610000507088 |
| Does Vitamin D Improves Sustained Virologic Response (SVR) in Genotype 2,3 Chronic Hepatitis C Patients? | Does Vitamin D Supplement Improve SVR in Chronic Hepatitis C (Genotype 2,3) in naïve Patients Treated With Peginterferon Alpha and Ribavirin | NCT01146626 |
| Vitamin D as a Therapeutic Adjunct in the Stimulant Treatment of ADHD: a Proof-of-concept Tele-health Study of Stimulant-induced Improvement in Neurocognitive Functioning. | Vitamin D as a Therapeutic Adjunct in the Stimulant Treatment of ADHD: a Proof-of-concept Tele-health Study of Stimulant-induced Improvement in Neurocognitive Functioning. | NCT04386811 |
| Does 3 Months Therapy With Vitamin D + Peg + Ribavirin Improve Sustained Virologic Response (SVR) in Genotype 2, 3 Chronic Hepatitis C Patients? | Does 3 Months Therapy With Vitamin D + Peg + Ribavirin Improve SVR in Genotype 2,3 Chronic Hepatitis C Patients? | NCT01151397 |
| The Role of Vitamin D in Menopause: Relationship to Menopausal Symptoms in Body Composition | The Role of Vitamin D in Menopause: Relationship to Menopausal Symptoms in Body Composition | NCT01141972 |
| Vitamin D in Active Tuberculosis (TB) Study | Antimicrobial Peptide LL-37 (Cathelicidin) Production in Active Tuberculosis Disease: Role of Vitamin D Supplementation | NCT00788320 |
| Randomised placebo controlled study of vitamin D during pregnancy and infancy | Randomised placebo controlled study of vitamin D3 during pregnancy and infancy to determine the vitamin D dose in pregnancy and early life that safely and effectively increases serum vitamin D concentration in infants. | ACTRN12610000483055 |
| The effect of exercise training with ingested of vitamin D on angiogenesis | Investigate and Compare the Effect of Eight Weeks Resistance and Endurance Training with Vitamin D Supplementation on Some Serum Angiogenesis Indices in Obese Hypertensive Meedle- Aged Men | IRCT2017062421719N1 |
| Effect of Vitamin D Replacement on Bone Healing in Mini-dental Implants | Effect of Vitamin D Replacement on Bone Healing in Mini-dental Implants: a Randomized Clinical Trial | NCT03356730 |
| vitamin D and non alcoholic fatty liver disease in children | effect of oral vitamin D supplementation in children with non alcoholic fatty liver disease | PACTR201710002634203 |
| Correlative Analysis of the Genomics of Vitamin D and Omega-3 Fatty Acid Intake in Prostate Cancer | Correlative Analysis of the Genomics of Vitamin D and Omega-3 Fatty Acid Intake in Men Managed With Active Surveillance for Prostate Cancer | NCT03290417 |
| vitamin D and thyroid disease | Changes in auto antibody and cytokine levels following Vitamin D supplementation in subclinical autoimmune hypothyroidism | CTRI/2017/09/009889 |
| Effect of Vitamin D3 Supplementation on Cardiometabolic Risk | Effect of Vitamin D3 Supplementation on Cardiometabolic Risk Factors in a Cohort of Overweight and Obese Adults in the United Kingdom (UK) | NCT02359214 |
| Effect of vitamin D and calcium supplementation on serum levels of hormones affecting postpartum depression | Effect of vitamin D and calcium supplementation on serum levels of cortisol and inflammatory biomarkers (IL10, hsCRP) in women with postpartum depression | IRCT2016111016123N12 |
| Vitamin D Treatment in Hemodialysis patients | Evaluation of the effect of vitamin D deficiency treatment on hemoglobin levels in hemodialysis patients | IRCT20190107042264N4 |
| Effects of Mega-dose Vitamin D Pulse and Maintenance Therapy on Seizure Frequency, Fatigue, and Quality of Life: a Prospective Study | Effects of Mega-dose Vitamin D Pulse and Maintenance Therapy on Seizure Frequency, Fatigue, and Quality of Life: a Prospective Study | NCT06736002 |
| Effects of Vitamin D Fortification on Vitamin D Metabolite Profiles and Status in Vitamin D Insufficient Individuals | A Double-Blind, Randomized, Control Study to Examine the Effects of Vitamin D Fortification on Vitamin D Metabolite Profiles and Status in Vitamin D Insufficient Individuals. | NCT02422784 |
| Trial of Vitamin D Supplements to Raise Calcidiol Levels of Pregnant Women in Mongolia | Trial of Vitamin D Supplements to Raise Calcidiol Levels of Pregnant Women in Mongolia | NCT02395081 |
| Omega-3, vitamin D and Autism in children | Effect of Vitamin D and Omega-3 Fatty Acid Supplements on behavioural measures in Children with Autism Spectrum Disorder (ASD): A randomised, double-blind, placebo-controlled trial | ACTRN12615000144516 |
| Effect of high dose Vitmin D on mortality and morbidity in pulmonary ICU patients. | Effect of high dose Vitamin D3 on mortality, morbidity, length of stay in ICU and mechanical ventilation duration in pulmonary ICU patients. | IRCT2014050517583N1 |
| Determination of Vitamin D Dose to Maintain Sufficiency Amongst Indian and Malay Women in the Tropics | Maintenance of Vitamin D Sufficiency With Oral Vitamin D Supplementation in Malaysian Women of Malay and Indian Ethnicity With Post Menopausal Osteoporosis | NCT02389179 |
| Study of Vitamin D and Effect on Heart Disease and Insulin Resistance | The Effect of Vitamin D Supplementation on Endothelial Function, Inflammation and Insulin Resistance in HIV | NCT01093417 |
| Prevention Trial: Immune-tolerance With Alum-GAD (Diamyd) and Vitamin D3 to Children With Multiple Islet Autoantibodies | Double-blind, Investigator-initiated Study to Determine the Effect of Alum-GAD (Diamyd) in Combination With Vitamin D3 on the Progression to Type 1 Diabetes in Children With Multiple Islet Autoantibodies | NCT02387164 |
| Effect of vitamin D supplement in pregnancy on prevention of postpartum depression | Effect of vitamin D supplement in pregnancy on prevention of postpartum depression | IRCT2015020310327N11 |
| Safety and efficacy of the treatment of active-form Vitamin D application for meibomian gland dysfunction | Safety and efficacy of the treatment of active-form Vitamin D application for meibomian gland dysfunction - Treatment of active-form Vitamin D application for MGD | JPRN-UMIN000029347 |
| Maternal Vitamin D for Acute Respiratory Infections in Infancy | Maternal Vitamin D for Acute Respiratory Infections in Infancy (MDARI): a Nested Sub-study in a Randomized Controlled Trial of Vitamin D Supplementation During Pregnancy and Lactation in Dhaka, Bangladesh | NCT02388516 |
| Protective Effects of Saxagliptin (And Vitamin D3) on ß Cell Function in Adult-onset Latent Autoimmune Diabetes | A Randomized Controlled, Open-label, Multi-center Study With 104-week Saxagliptin or (and) Vitamin D3 Assessing Protective Effects on Beta Cell Function in Latent Autoimmune Diabetes in Adults (LADA) Treated With Metformin (and Insulin) | NCT02407899 |
| Vitamin D Status in Autism Spectrum Disorder and the Efficacy of Vitamin D Supplementation in Autistic Children | Vitamin D Status in Autism Spectrum Disorder and the Efficacy of Vitamin D Supplementation in Autistic Children - Vitamin D and Autism | JPRN-UMIN000016770 |
| Acute Effect of Systemic Stress on Measured Blood Concentrations of 25 (OH) Vitamin D | Acute Effect of Systemic Stress on Measured Blood Concentrations of 25 (OH) Vitamin D | NCT02460211 |
| The effect of vitamin D supplementation on plasma high sensitivity C-reactive protein and P-selectin in patients with thromboembolism | Evaluation of vitamin D supplementation on plasma hs-CRP level and P-selectin in patients with vitamin D deficiency and thromboembolism; A Randomized controlled trial | IRCT201407048307N7 |
| The improvement of endometrial receptivity in PCOS patients by Vitamin D3: a prospective randomized controlled clinical trial | The improvement of endometrial receptivity in PCOS patients by Vitamin D3: a prospective randomized controlled clinical trial | ChiCTR-IPR-15006369 |
| A Prospective, Multi-center Study to Evaluate the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D Deficiency | A Prospective, Multi-centre, Randomized, Double-blind, Placebo-controlled Phase 3 Study to Evaluate the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D Deficiency | NCT02443246 |
| Benefits of giving vitamin D injection along with usual treatment for depression | Efficacy of vitamin D as an adjunct to standard treatment in depression: A randomized controlled trial | CTRI/2017/09/009824 |
| D-Light Intervention | D-Light Intervention: A Randomised Controlled Human Intervention Study to Assess the Impact of Vitamin D From Milk and Supplements on Functional Health Outcomes and Future Vitamin D Synthesis From UV Exposure | NCT02495584 |
| A cohort study on the health effects of vitamin D supplementation in type 2 diabetic patients | A cohort study on the health effects of vitamin D supplementation in type 2 diabetic patients | ChiCTR-IPC-17012657 |
| Supplementation With Vitamin D to Patients With Heart Failure (D-Heart). | Supplementation With Vitamin D to Patients With Heart Failure. Effects on Symptoms, Quality-of-life and Disease Processes. | NCT03289637 |
| Pharmacokinetics of Calcifediol and Cholecalciferol | The Response of Serum 25-hydroxyvitamin D to Different Doses of Calcifediol Hy.D Compared to Vitamin D3 Supplementation: A Randomized, Controlled, Double Blind, Long Term Pharmacokinetic Study | NCT02333682 |
| To study the efficacy of Vitamin D as an adjunctive treatment along with Anti Tubercular Therapy on early sputum negativity in smear positive Pulmonary Tuberculosis | Randomized controlled trial to study the efficacy of Vitamin D as an adjunctive treatment along with ATT on early sputum conversion in smear positive Pulmonary Tuberculosis - NIL | CTRI/2024/11/077220 |
| Vitamin D Supplementation in TB Prevention | Vitamin D in TB Prevention in School Age Children | NCT02276755 |
| The Role of Vitamin D in Fertility and In Vitro Fertilisation (IVF) Outcomes | The impact of Vitamin D status on fertility outcomes, reproductive cell metabolism and bioenergetics. | ACTRN12617001221347 |
| The Effect of Vitamin D3 Supplementation on Hepcidin and Ferritin Serum Levels in Children With Chronic Kidney Disease | The Effect of Vitamin D3 Supplementation on Hepcidin and Ferritin Serum Levels in Children With Chronic Kidney Disease | NCT06706271 |
| Geelong Exercise and Nutrition Training Study (GENTS): Examining the Effects of Exercise and/or Calcium-Vitamin D on Bone Health in Older Men | Effects of a Multi-component Exercise Program and Calcium-Vitamin D3 Fortified Milk on Bone Mineral Density, Bone Structure and Strength in Older Men: A Factorial Design Randomised Controlled Trial | ACTRN12617001224314 |
| Vitamin D status and peripheral neuropathy in multiple myeloma patients | Vitamin D status and peripheral neuropathy in multiple myeloma patients - Vitamin D and peripheral neuropathy | NL-OMON45779 |
| vitamin D supplementation in metabolic syndrome | Effect of vitamin D supplementation on carotid intima-media thickness and risk factors of cardiovascular disease in patients with metabolic syndrome | IRCT201409033140N14 |
| Effect of vitamin D on sonographic and laboratory and criteria | Comparison of vitamin D and placebo application on sonographic, laboratory and some biochemical criteria of fatty liver in overweight and obese children aged between 12 and 18 years | IRCT2017082017756N23 |
| Effectivness of Vitamin D Level on Quality of Life and pain Level in Hemodialysis Patients in Hamadan Province | Effectivness of Vitamin D Level on Quality of Life and pain Level in Hemodialysis Patients in Hamadan Province | IRCT20200914048719N3 |
| Vitamin D supplementation effect on cyclical mastalgia | Evaluation of the effect of Vitamin D supplementation on pain and serum level of prolactin in women suffering from cyclical mastalgia | IRCT2017072610327N16 |
| Trial of Vitamin D in HIV Progression, Birth Outcomes, and Child Health | Trial of Vitamin D in HIV Progression, Birth Outcomes, and Child Health | NCT02305927 |
| Effect of combined probiotic and vitamin D supplementation in treatment of coronary heart disease | Clinical trial of the effect of combined probiotic and vitamin D supplementation compared with the placebo on metabolic profiles in type 2 diabetic patients with coronary heart disease | IRCT2017073033941N4 |
| A comparative trial studying the molecular action of vitamin D and retinoids (acitretin) in children with autosomal recessive congenital ichthyosis | A Phase II randomized controlled trial elucidating the gene expression profile using transcriptomic analysis in children with autosomal recessive congenital ichthyosis treated with vitamin D and acitretin. | CTRI/2017/08/009565 |
| Effect of VItamin D as add-on Therapy for vitamin D insufficient patients with severe Asthma | EVITA Trial: Effect of VItamin D as add-on Therapy for vitamin D insufficient patients with severe Asthma: a randomized, double-blind, placebo-controlled trial. - EVITA | EUCTR2014-002363-15-DE |
| The Effect of Vitamin D Supplementation Among Overweight Jordanian Women With Polycystic Ovary Syndrome (PCOS) | The Effect of Vitamin D Supplementation on Chromium Serum Levels and Insulin Resistance Among Overweight Jordanian Women With Polycystic Ovary Syndrome in Irbid | NCT02328404 |
| Effect of vitamin D on serum levels of Asymmetric dimethylarginine and immune system cytokines, and Cathelicidin gene expression in Ulcerative Colitis patients | Effect of vitamin D on serum levels of Asymmetric dimethylarginine and immune system cytokines, and Cathelicidin gene expression in Ulcerative Colitis patients | IRCT2014062318207N1 |
| The Effect of Calcifediol (Hy.D 25 SD/S) and Vitamin D3 on Muscle Strength in a Frail Elderly Population | The Effect of Calcifediol (Hy.D 25 SD/S) and Vitamin D3 on Muscle Strength in a Frail Elderly Population: a Randomized, Double-blind, Placebo-controlled Trial. | NCT02349282 |
| The effect of vitamin D3 on the obesity | The comparison of effectiveness of vitamin D3 supplement with placebo on reducing the rate of weight gain due to consuming of olanzapine in the women with psychiatric disorders. | IRCT2014122520430N1 |
| Comparing the effect of vitamin D weekly with daily in treatment of patients with vitamin D deficiency | Comparing the effect of 50000 units vitamin D weekly with 7000 units daily in treatment of patients with vitamin D deficiency | IRCT2017022022965N6 |
| knee joint design, vitamin D and steroid abuse as risk factor for bony soft tissue Injury | Anatomical factors, vitamin D and anabolic steroid abuse as risk factor for Anterior Cruciate Ligament Injury | CTRI/2017/09/009616 |
| A study of effects of Calcium and Vitamin D supplementation on depletion of jaw bones in patients having all missing teeth.â?? | A randomised open label study to assess the effects of Calcium and Vitamin D supplementation on residual ridge resorption in ageing edentulous patients. | CTRI/2017/09/009626 |
| Evaluation of Vitamin D Supplementation on heart health, muscle strength and Body fat in twins | Supplementation with Vitamin D assessment on Physical Fitness: study heritability | RBR-3qy2f2 |
| Vitamin D supplementation in infertile males with decreased sperm count and motility. | IMPACT OF VITAMIN D SUPPLEMENTATION ON SEMEN QUALITY IN VITAMIN D DEFICIENT INFERTILE MALES WITH OLIGOASTHENOZOOSPERMIA | CTRI/2017/09/009678 |
| Study of the effect of drug composition erythropoietin, pentoxifylline and vitamin D3 on the consciousness level of patients with brain injury | Study of the effect of drug composition erythropoietin, pentoxifylline and vitamin D3 on the consciousness level of patients with brain injury | IRCT20130812014333N157 |
| Vitamin D and Photodynamic Therapy for Treatment of BCC in BCNS | Vitamin D as a Nutritional Neoadjuvant During Photodynamic Therapy of Basal Cell Carcinoma in Basal Cell Nevus Syndrome | NCT03483441 |
| A Study of Alendronate Sodium Vitamin D3 Tablets on Knee Osteoarthritis | The Effect of Alendronate Sodium Vitamin D3 Tablets on Knee Joint Structure and Knee Osteoarthritis Pain: A Multi-center, Randomized, Double-blind, Controlled Study. | NCT04739592 |
| High Dose Vitamin D Plus Multivitamin in the Prevention of Cluster Headache | High Dose Vitamin D Plus Multivitamin in the Prevention of Cluster Headache: a Randomized, Double-blind, Placebo Controlled Trial. | NCT04570475 |
| Effects of vitamin D and/or aquatic exercise on IL-1ß and IL-1RA serum levels and behavior of children with autism spectrum disorder | Effects of vitamin D and/or aquatic exercise on IL-1ß and IL-1RA serum levels and behavior of children with autism spectrum disorder | IRCT20180503039517N5 |
| Effect of vitamin d on inflammatory factors | The effect of vitamin D injection on tumor necrosis factor alpha (TNF) and vascular cell adhesion molecule 1 (SVCAM-1) in vitamin D deficient patients with Type 2 Diabeties | IRCT20200913048697N1 |
| Vitamin D3 in Systemic Lupus Erythematosus | Effect of Vitamin D3 on the IFN Alpha Signature in Patients With Systemic Lupus Erythematosus (ALE02) | NCT00710021 |
| Improving Vitamin D Status in Home-bound Elders | Improving Vitamin D Status in Home-bound Elders: a Pilot Study | NCT01410084 |
| A study to assess the usefulness of combination of Vitamin D, magnesium and Vitamin B12 in older COVID-19 patients | A cohort study to evaluate the effect of combination vitamin D, magnesium and vitamin B12 (DMB) on progression to severe outcome in older COVID-19 patients | ISRCTN15324611 |
| The Role of Vitamin D, A, and Beta Carotene in Tuberculosis Patients With Vitamin D Receptor Gene Polymorphism | The Role of Vitamin D, A, and Beta Carotene in Tuberculosis Patients With Vitamin D Receptor Gene Polymorphism | NCT04593524 |
| Benign Paroxysmal Positional Vertigo (BPPV) in Older Patients | A Double Blinded Randomized Control Trial (RCT) to Evaluate the Effectiveness of Vitamin D Treatment in Lowering the Recurrence Rate of Benign Paroxysmal Positional Vertigo (BPPV) in Older Patients | NCT04578470 |
| Trial of Vitamin D to Reduce Risk and Severity of COVID-19 and Other Acute Respiratory Infections | Phase 3 Randomised Controlled Trial of Vitamin D Supplementation to Reduce Risk and Severity of COVID-19 and Other Acute Respiratory Infections in the UK Population | NCT04579640 |
| Monitoring the use of cellular applications for the influence on the behavior of individuals during sun exposure | EN19-0771-01- Clinical study aiming to monitor the use of mobile applications for their potential of impacting an individual’s sun exposure behavior, by assessing vitamin D synthesis and production of erythema after sun exposure - NA: NA | RBR-2mf6qg |
| Evaluation of the effects of silymarin and calciferol on LUTS in patients with benign prostatic hyperplasia | Evaluation of the effects of silymarin and calciferol on LUTS in patients with benign prostatic hyperplasia with normal and lower than normal serum vitamin D levels | IRCT20200906048641N1 |
| Relationships Between Vitamin D and Orthopedic Trauma | Relationships Between Vitamin D and Orthopedic Trauma | NCT04564625 |
| Vitamin D3 Supplementation to Prevent Respiratory Tract Infections | Vitamin D3 Supplementation to Prevent Respiratory Tract Infections, Including Covid-19, in Hospital Workers: a Pragmatic Study | NCT04596657 |
| Comparison of response to standard treatment plus therapeutic vitamin D dose, with standard treatment and maintenance vitamin D in children with functional constipation, randomized clinical trial | Comparison of response to standard treatment plus therapeutic vitamin D dose, with standard treatment and maintenance vitamin D in children with functional constipation, randomized clinical trial | IRCT20121107011392N3 |
| The effect of vitamin D supplementation and aerobic exercise on inflammation and lung function in male smokers | The effect of vitamin D supplementation and aerobic exercise on serum levels of inflammatory factors and lung function in male smokers | IRCT20180513039637N4 |
| The effects of vitamin D on bone, muscle and adipose tissue: a phase IV randomized double-blind study. | The effects of vitamin D on bone, muscle and adipose tissue: a phase IV randomized double-blind study. | EUCTR2019-003907-37-IT |
| Prephase treatment with prednisone +/- Vitamin D supplementation followed by immunochemotherapy in Elderly patients with Diffuse Large B-Cell Lymphoma (DLBCL) | Prephase treatment with prednisone +/- Vitamin D supplementation followed by immunochemotherapy in Elderly patients with Diffuse Large B-Cell Lymphoma (DLBCL).A randomized, open label, phase III study by Fondazione Italiana Linfomi. - Prephase treatment with prednisone +/- Vitamin D supplementation followed by immunochemotherapy in E | EUCTR2019-004474-26-IT |
| The Effect of Vitamin D Supplementation on Improvement of Symptoms in Asthma Patients with Vitamin D Insufficiency and Deficiency | The Effect of Vitamin D Supplementation on Improvement of Symptoms in Mild-to-Moderate Asthma Patients with Vitamin D Insufficiency and Deficiency | IRCT20200825048515N10 |
| The effect of vitamin D on glycaemic control in pre-diabetic patients | The effect of vitamin D supplementation on glycaemic control and progression to Type 2 Diabetes Mellitus in pre-diabetic patients – An open-label intervention clinical trial | ACTRN12620001106921 |
| The Effects of Vitamin D and Probiotic on metabolic syndrome | The Effects of Vitamin D and Probiotic Co-Supplementation on metabolic syndrome components in the military personnel with this syndrome | IRCT20180201038585N7 |
| Effect of vitramin D in asthma | The effect of vitamin D on pulmonary function and serum level of interleukin 10 and antioxidant activity in patient with moderate to severe asthma. | IRCT20190721044288N1 |
| Effect of vitamin D on prostate | Effect of vitamin D on biochemical indicators and clinical symptoms in military personnel with benign prostatic hyperplasia | IRCT20180201038585N9 |
| The effect of Vitamin D on fasting plasma glucose and Insulin levels | The Effect of Vitamin D on Insulin Resistance Biomarker and Fasting Blood Glucose in Pregnant Women: A Randomized Controlled Trial. | IRCT20120718010324N59 |
| Evaluation of the effects of vitamin D brain mapping in children with ADHD | Evaluation of the effects of vitamin D supplementation on vitamin status and brain mapping in children with ADHD | IRCT20200922048802N1 |
| Eggs Over Easy: Effects of egg consumption on blood vitamin D levels in young adults. | Effects of egg consumption on the vitamin D status of young adults. | ACTRN12620001057976 |
| The effect of vitamin D deficiency treatment on lipid profile in ischemic heart diseases | The effect of vitamin D deficiency treatment on lipid profile in ischemic heart diseases: a double blinded randomized clinical trial | IRCT20200905048622N1 |
| Effect of vitamin D3 supplementation on viral load and recovery of TCD4 + cells in HIV patients on antiretroviral therapy assisted by SUS | Effect of vitamin D3 supplementation on viral load and recovery of TCD4 + cells in HIV patients on antiretroviral therapy assisted by SUS - : SIDA | RBR-5h432f |
| Effect of vitamin D on intensity of dysmenorrhea | Investigating the effect of low dose vitamin D on intensity of dysmenorrhea | IRCT20180218038789N3 |
| Vitamin D Supplementation as a Neoadjuvant for Photodynamic Therapy of Actinic Keratoses | Vitamin D Supplementation as a Neoadjuvant for Photodynamic Therapy of Actinic Keratoses | NCT04482322 |
| Study of total post-thyroidectomy hypocalcemia after preoperative cholecalciferol supplementation | Study of total post-thyroidectomy hypocalcemia after preoperative cholecalciferol supplementation | EUCTR2018-000526-64-FR |
| Vitamin D and Methotrexate Adverse Effects | Effect of Vitamin D Administration on Methotrexate Adverse Effects in Patients With Acute Lymphoblastic Leukemia | NCT04488237 |
| International ALLIANCE Study of Therapies to Prevent Progression of COVID-19 | Therapies to Prevent Progression of COVID-19, Including Hydroxychloroquine, Azithromycin, Zinc, Vitamin D, Vitamin B12 With or Without Vitamin C, a Multi-centre, International, Randomized Trial: The International ALLIANCE Study | NCT04395768 |
| Comparative Evaluation of Three Vitamin D3 Formulations for Sequential Improvement of Vitamin D3 Levels throughout a period of 3-Months. | Comparative Evaluation of Three Vitamin D3 Formulations for Sequential Improvement of Vitamin D3 Levels throughout a period of 3-Months. - NIL | CTRI/2024/02/063141 |
| N-terminal Pro B-type Natriuretic Peptide and Vitamin D Levels as Prognostic Markers in COVID-19 Pneumonia | N-terminal Pro B-type Natriuretic Peptide and Vitamin D Levels as Prognostic Markers in COVID-19 Pneumonia | NCT04487951 |
| effect of vitamin D on decreasing blood pressure | Evaluating the effect of vitamin D on decreasing blood pressure in patients with Stage 1 hypertension | IRCT20190105042238N1 |
| Investigating the effect of vitamin D and vitamin E on Intensity and Duration of Dysmenorrhea | The Effect of Vitamin D and Vitamin E on Ameliorating Intensity and Duration of Dysmenorrhea in Iranian Women | IRCT20160308026962N4 |
| The effect of exercise and vitamin D in postmenopausal women with metabolic syndrome | The interaction effect of aerobic exercise and vitamin D supplementation on serum levels of apelin, vaspin and inflammatory factors in postmenopausal women with metabolic syndrome | IRCT20200122046217N1 |
| A clinical trial to study the effects of two different dosages of Vitamin D in preterm neonates | Randomised Control Trial of efficacy and outcome of Vitamin D supplementation in preterm neonates | CTRI/2020/08/027251 |
| A multicenter, randomized, controlled trial for calcium and vitamin D treatment in elderly population with high fracture risk and low bone mass and establishment of reasonable intervention strategy | A multicenter, randomized, controlled trial for calcium and vitamin D treatment in elderly population with high fracture risk and low bone mass and establishment of reasonable intervention strategy | ChiCTR2000036016 |
| The Association of Vitamin D Supplementation With the Outcome in Critically Ill Children | The Association of Vitamin D Supplementation With the Outcome in Critically Ill Children | NCT04536831 |
| The association between vitamin D levels and risk of type 2 diabetes mellitus: a prospective cohort study | The association between vitamin D levels and risk of type 2 diabetes mellitus: a prospective cohort study | ChiCTR2000036583 |
| Study on the clinical effectiveness of vitamin D supplementation on stable adult bronchiectasis | Study on the clinical effectiveness of vitamin D supplementation on stable adult bronchiectasis | ChiCTR2000036279 |
| Effect of Vitamin d Deficiency in Chronic Rhinosinusitis With Nasal Polyposis | Effect of Vitamin d Deficiency in Chronic Rhinosinusitis With Nasal Polyposis: Clinical, Laboratory & Immunohistochemical Study | NCT04529668 |
| Vitamin D for COVID-19 Trial | A Cluster-Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy of Vitamin D3 Supplementation to Reduce Disease Severity in Persons With Newly Diagnosed COVID-19 Infection and to Prevent Infection in Household Members | NCT04536298 |
| A phase-III clinical trial to study the effects of vitamin D3 add on therapy with escitalopram in depression. | Randomized, double-blind, placebo-controlled trial on the impact of vitamin D supplementation on treatment and outcome of depression | CTRI/2020/08/027428 |
| Effect of Vitamin D Supplementation in Live Birth Rate of in Vitro Fertilization Outcome | A Randomized Double-blind Placebo-controlled Trial to Investigate the Effect of Vitamin D Supplementation in Live Birth Rate of in Vitro Fertilization Outcome | NCT04547530 |
| Pharmacokinetic Study: Effect of 25(OH)D and Vitamin D3 on Serum 25(OH)D | Pharmacokinetic Study in Healthy Postmenopausal Women to Compare Supplementation of Vitamin D3 to 25(OH)D | NCT00718276 |
| Evaluation of the Relationship Between Zinc Vitamin D and b12 Levels in the Covid-19 Positive Pregnant Women | Zinc Vitamin D and b12 Levels in the Covid-19 Positive Pregnant Women | NCT04407572 |
| Testosterone Pellets Plus Vitamin D and E Versus Vitamin D and E Alone for the Treatment of Peyronie's Disease | An Open-Label, Nine-Month Randomized Controlled Study of Testosterone (Testopel) Pellets Plus Vitamin D and E Versus Vitamin D and E Alone for the Treatment of Peyronie's Disease | NCT01578473 |
| Effect of Vitamin D in Rhinosinusitis with Nasal Polyps | Effect of oral Vitamin D Supplementation in recovery of the Patients with Chronic Rhinosinusitis with Nasal Polyps and Vitamin D insufficiency | IRCT20200729048247N1 |
| Pregnancy Outcome and Vitamin D Level Among Vitamin D Supplementation During Pregnancy | Pregnancy Outcomes and Vitamin D Level Among Vitamin D Supplementation During Pregnancy : A Double-blind Randomized Placebo Controlled Trial | NCT04591847 |
| Vitamin D supplementation on body composition in basketball players | Vitamin D supplementation on bone turnover in NCAA D1 collegiate basketball players: a pilot study | ISRCTN14155111 |
| The relationship between vitamin D and prognosis of tuberculosis patients | The relationship between vitamin D and prognosis of tuberculosis patients | ChiCTR2000039832 |
| Baseline Vitamin D Deficiency and COVID-19 Disease Severity | Baseline Vitamin D Deficiency and COVID-19 Disease Severity/Need for Escalation of Care | NCT04628000 |
| Prevention of pre-eclampsia through vitamin D supplementation: a single-blinded randomized clinical trial without placebo | Pre-eclampsia in Kivu: vitamin D levels and impacts of vitamin D supplementation on obstetric-neonatal outcomes in primigravida | ISRCTN46539495 |
| Prevention of relapse in Category I treated Pulmonary Tuberculosis patients with and without Vitamin D3 supplementation | Prevention of relapse in Category I treated Pulmonary Tuberculosis patients with & without Vitamin D3 supplementation A randomized double blind control clinical trial | CTRI/2021/02/030977 |
| The Effect of Probiotics and Vitamin D Supplementation on Sport Performance in MMA Athletes. | The Effect of Probiotics and Vitamin D Supplementation on Sport Performance and Intestinal Barrier Function in Trained Male Mixed-martial Arts Athletes | NCT04759729 |
| Effect of Vitamin D3 Supplementation on the severity of Stress Urinary Incontinence (SUI) in premenopausal women | Effect of Vitamin D3 Supplementation on the severity of Stress Urinary Incontinence (SUI) in premenopausal women; A double-blind clinical trial | IRCT20190724044318N2 |
| VITAMIN D DEFICIENCY may leads to death IN CRITICALLY ILL PATIENTS | CORRELATION OF VITAMIN D DEFICIENCY WITH MORTALITY IN CRITICALLY ILL PATIENTS | CTRI/2021/02/031248 |
| Does vitamin D reduce blood pressure and left ventricular (LV) mass in resistant hypertensive patients with vitamin D insufficiency? | Does vitamin D reduce blood pressure and left ventricular (LV) mass in resistant hypertensive patients with vitamin D insufficiency? A double-blind, placebo-controlled, parallel-group randomised trial | ISRCTN63688695 |
| The effect of vitamin D on complications and mortality of intertrochanteric fracture hip fracture in over 60 years patients | The frequency of mortality and morbidity following intertrochanteric fracture in patients over 60 years of age who received vitamin D compared to controls | IRCT20151123025202N14 |
| The effect of vitamin D use on ankle-brachial index in diabetic patients | The Comparison of the effect of vitamin D and standard treatment on ankle-brachial index in type 2 diabetic patients | IRCT20190919044819N4 |
| Effect of vitamin D on improvement of n 5-10 years old children with idiopathic short stracture | Effect of vitamin D on serum level of Insulin-like growth factor 1 in 5-10 years old children with idiopathic short stature | IRCT20200622047874N1 |
| Comparison of neonatal prognosis of vitamin D intake and no receive it at birth is premature infant | Comparison of neonatal prognosis of vitamin D intake and no receive it at birth is premature infant | IRCT20110807007244N6 |
| The effect of vitamin D intake in the mother during childbirth on the incidence of respiratory problems in infants | The effect of vitamin D intake in the mother during childbirth on the incidence of nonspecific respiratory distress | IRCT20110807007244N7 |
| Evaluation of treatment outcome among children of 1-10 years with Vitamin D deficiency treated with daily Vitamin D in comparison to fortnightly Vitamin D. | Daily versus fortnightly oral vitamin D3 in equivalent doses in treatment of symptomatic vitamin D deficiency in children aged 1-10 years: A randomized controlled trial | CTRI/2021/02/031422 |
| Low and High Doses of Prophylactic Vitamin D in Prevention of Osteopenia of Prematurity | Comparison Between Low and High Doses of Prophylactic Vitamin D in Prevention of Osteopenia of Prematurity | NCT04768439 |
| Effect of Treatment for Vitamin D Deficiency on Thyroid Function and Autoimmunity in Hashimoto's Thyroiditis. | Effect of Vitamin D Supplementation on Autoimmunity and Thyroid Function in Subjects With Hashimoto's Thyroiditis and Vitamin D Deficiency: Clinical Pilot Trial. | NCT04778865 |
| Comparison of the effect of COCs and vitamin D-COCs on ovulatory dysfunction Bleeding in reproductive age women | Comparative of the effect of Combined oral contraceptive pills (COCs) and vitamin D - COCs on Ovulatory dysfunction bleeding (AUB-O) in reproductive age women : A triple blind randomized controlled clinical trial | IRCT20110606006709N22 |
| A study to compare the efficacy of daily 4000 IU versus 6000 IU of oral vitamin D3 in the treatment of vitamin D deficient over weight and obese children. | Comparative efficacy of daily 4000 IU versus 6000 IU of oral vitamin D3 in the treatment of vitamin D deficient overweight and obese children - A Randomized controlled trial | CTRI/2021/02/031591 |
| Vitamin D Supplementation in Younger Women | Optimum Vitamin D Nutrition in Young Women | NCT00662844 |
| Effect of synbiotic with or without vitamin D on intestinal microbiome | Effect of synbiotic and/or vitamin D on intestinal microbiome and its relationship with muscle strength, function and body composition in overweight or obese middle-aged women. | IRCT20090822002365N25 |
| Clinical study of Buerger exercise combined with vitamin D in the treatment of diabetic foot | Clinical study of Buerger exercise combined with vitamin D in the treatment of diabetic foot | ChiCTR2100043815 |
| Effect of vitamin D in treatment of burn | The effect of vitamin D supplementation on inflammation and antioxidant markers in the burned hospitalized patients | IRCT20210116050044N1 |
| Vitamin D, Omega-3, and Combination Vitamins B, C and Zinc Supplementation for the Treatment and Prevention of COVID-19 | Prevent and Treat Double-Blind Factorial Randomized Trials of Daily Oral Vitamin D, Omega 3, and Combination Vitamins B, C and Zinc Supplementation for the Treatment and Prevention of COVID-19 | NCT04828538 |
| Serum Parathyroid Hormone and Vitamin D levels as predictors of hypocalcaemia after total/Near total thyroidectomy | Serum Parathyroid Hormone and Vitamin D levels as predictors of hypocalcaemia after total/Near total thyroidectomy | CTRI/2021/03/032054 |
| Relationship Between Preoperative Vitamin D and Surgical Site Infection | Relationship Between Preoperative Vitamin D and Surgical Site Infection | ChiCTR2100044820 |
| Clinical Study of the Effect of Vitamin D on the RAAS System in Children With Chronic Orthostatic Intolerance (POTS) | Clinical Study of the Effect of Vitamin D on the RAAS System in Children With Chronic Orthostatic Intolerance (POTS) | NCT04844957 |
| The D-Frail Study 2: Does vitamin D deficiency cause frailty through its effects on early-stage vascular dysfunction (endothelial dysfunction)? – Interplay between vitamin D deficiency, chronic inflammation, and sarcopenia - A vitamin D intervention | The D-Frail Study 2: Does vitamin D deficiency cause frailty through its effects on early stage vascular dysfunction (endothelial dysfunction)? – Interplay between vitamin D deficiency, chronic inflammation and sarcopenia - A vitamin D intervention in healthy older adults | ACTRN12621000059864 |
| Vitamin D supplementation and insulin homeostasis among healthy overweight and obese adults. | The Effect of the Vitamin D Supplementation in Obese and Non-Diabetic Individuals; a Double Blind Randomized Clinical Trial. | IRCT20200713048089N1 |
| The D-Frail Study 1: Association between vascular endothelial dysfunction and physical frail in patients with cardiovascular comorbidities: A prospective crossectional cohort study | The D-Frail Study 1: Association between vascular endothelial dysfunction and physical frail in patients with cardiovascular comorbidities: A prospective crossectional cohort study – Interplay between vitamin D deficiency, chronic inflammation and sarcopenia | ACTRN12621000058875 |
| Evaluation of the vitamin D serum level in the clinical staff of the Pius Hospital Oldenburg compared to garbage collectors in the city of Oldenburg and identification of groups at risk of inadequate levels | Evaluation of the vitamin D serum level in the clinical staff of the Pius Hospital Oldenburg compared to garbage collectors in the city of Oldenburg and identification of groups at risk of inadequate levels - E-VitaD | DRKS00023712 |
| Vitamin D and Zinc Supplementation for Improving Treatment Outcomes Among COVID-19 Patients in India | A Randomized Trial to Determine the Effect of Vitamin D and Zinc Supplementation for Improving Treatment Outcomes Among COVID-19 Patients in India | NCT04641195 |
| Effect of Vitamin D on Ovulation Rate in Women With Polycystic Ovary Syndrome | A Randomized Double-blind Controlled Trial on the Effect of Vitamin D on Ovulation Rate of Women With Polycystic Ovary Syndrome | NCT04650880 |
| comparison of two doses of vitamin D in healthy term neonates | COMPARISON OF EFFICACY OF DAILY SUPPLEMENTATION OF 800 IU vs. 400 IU VITAMIN D ON SERUM VITAMIN D STATUS AT 14 WEEKS OF AGE IN TERM HEALTHY NEONATES: A RANDOMIZED CONTROLLED TRIAL | CTRI/2020/11/029281 |
| Effect of vitamin D supplementation in urinary incontinency | Evaluation of the effect of vitamin D supplementation in post menopausal patients with urgent urinary incontinency and vitamin D deficiency | IRCT20200417047109N1 |
| The epidemiological investigation of serum Vitamin D levels and the prevalence of osteoporosis and sarcopenia among Chinese elderly and a multi-center randomized controlled study of the effect of vitamin D and nutritional supplement on osteo-sarcopenia | The epidemiological investigation of serum Vitamin D levels and the prevalence of osteoporosis and sarcopenia among Chinese elderly and a multi-center randomized controlled study of the effect of vitamin D and nutritional supplement on osteo-sarcopenia | ChiCTR2000040279 |
| The effect of vitamin D administration during labor on the incidence of Transient rapid breathing of the Newborn | The effect of vitamin D administration during labor on the incidence of Transient Tachypnea of the Newborn | IRCT20110807007244N5 |
| Vitamin D Supplementarion in Pregnant Women at Risk and COVID-19 | Randomised Clinical Trial of Vitamin D Supplementation in Pregnant Women and Prevalence of Covid-19 Immunity. | NCT04825093 |
| Intralesional Vitamin D in Alopecia Areata | Intralesional Vitamin D3 Injection in Treatment of Alopecia Areata: A Novel Approach | NCT04660786 |
| Effect of vitamin D supplementation in epilepsy | Effect of vitamin D supplementation on seizure frequency in persons with drug resistant epilepsy and its correlation with biomarkers | CTRI/2020/12/029862 |
| The effect of vitamin D3 on the symptoms of patients with irritable bowel syndrome | The Effect of Vitamin D3 on Quality of Life and Symptoms of patients with Irritable Bowel Syndrome and vitamin D3 Deficiency | IRCT20180617040114N4 |
| The effect of Elastic Exercises, Fennel Extract and Calcium-vitamin D supplementation in treatment of Premenstrual Syndrome | Interactive effect of Plyometric (Elastic) Exercises with Fennel Extract and Calcium-vitamin D supplementation on Premenstrual Syndrome in non-athletic girls | IRCT20201116049412N1 |
| Compare response to vitamin D in obese vs non obese children. | Response to weekly oral doses of vitamin D in vitamin D deficient overweight and obese versus normal BMI children of 5 to 12 years age. | CTRI/2020/12/030062 |
| The effects of vitamin D supplementation on bone density in vitamin D insufficient teenagers: randomised controlled trial | The effects of vitamin D supplementation on bone density in vitamin D insufficient teenagers: randomised placebo-controlled trial | ACTRN12608000299303 |
| Studying vitamin D status and the efficacy of vitamin D supplementation in autistic children in Bangladesh | Studying vitamin D status in autism spectrum disorder and the efficacy of vitamin D supplementation in autistic children in Bangladesh | CTRI/2020/12/030101 |
| Vitamin D Status in Children With Sickle Cell Disease Living in Lyon, France | Evaluation of Vitamin D Deficiency Distribution in Children With Sickle Cell Disease Followed in Lyon, France | NCT04694976 |
| Patient preference and acceptability of calcium plus vitamin D3 supplementation: a randomised, open, cross-over trial | Patient preference and acceptability of calcium plus vitamin D3 supplementation: a randomised, open, cross-over trial | ISRCTN18822358 |
| The effect of vitamin D on depression, anxiety and general health. | The effect of oral vitamin D on depression, anxiety and general health in menopausal women. | IRCT20090810002324N18 |
| Evaluation of relationship between vitamin D supplementation treatment and hypercalciuria in patients with kidney stones | Evaluation of relationship between vitamin D supplementation treatment and hypercalciuria in patients with kidney stones | IRCT20200105046012N1 |
| Study to evaluate if vitamin deficiency in celiac disease patients can be treated with gluten free diet alone or added vitamin D supplementation is required. | Role of supplement in celiac disease patients with vitamin D deficiencies: a randomization control trial | CTRI/2021/01/030270 |
| Impact of Vitamin D Level and Supplement on SLE Patients During COVID-19 Pandemic | Impact of Vitamin D Level and Supplement on SLE Patients During COVID-19 Pandemic | NCT04709744 |
| The effect of water exercise and vitamin D consumption on the health of diabetics | The effect of 8 weeks vitamin D supplementation and water training on serum glycosylated hemoglobin, CRP, insulin resistance and lipid profile in women with type 2 diabetes | IRCT20201223049811N1 |
| The effect of vitamin D on sleep quality and pregnancy symptoms | The effect of vitamin D on sleep quality and pregnancy symptoms in pregnant women: a randomized controlled clinical trial | IRCT20120718010324N61 |
| Vitamin D and Endometrial Receptivity in Infertile Women | Effect of Vitamin D on Vaginal / Endometrial Biomarkers and Endometrial Receptivity in Women With Fertility Problems | NCT04721899 |
| The effect of vitamin D on hyperandrogenism and metabolism in patients with PCOS | The effect of vitamin D on hyperandrogenism and metabolism in patients with PCOS | ChiCTR2100042326 |
| Evaluation of the relationship between vitamin D3 and hemoglobin in patients undergoing hemodialysis | Correlation between vitamin D3 and rise of hemoglobin in dialysis in hemodialysis ward | IRCT20190202042588N2 |
| To find the relation between Vitamin D and recurrent respiratory infections | To evaluate the correlation between Vitamin D deficiency and naïve B-lymphocyte activation and function in Patients with recurrent upper respiratory tract infections | CTRI/2020/07/026540 |
| The effect of different doses of vitamin D on vitamin D levels in patients with severe chronic obstructive pulmonary disease | Comparing the effect of different dose of vitamin D on vitamin D level in patients with severe chronic obstructive pulmonary disease based on GOLD criteria with vitamin D deficiency | IRCT20180924041108N1 |
| Vitamin D in Egyptian Children With Atopic Dermatitis | The Impact of Vitamin D Supplementation as an Adjuvant Therapy on Clinical Outcome in Patients With Severe Atopic Dermatitis | NCT04468711 |
| The efficacy and safety of daily oral vitamin D2 in the treatment of vitamin D deficiency in adults(VD2-2022) | The efficacy and safety of daily oral vitamin D2 in the treatment of vitamin D deficiency in adults(VD2-2022) | ChiCTR2400079573 |
| USAGE OF SYSTEMIC DOSES OF VITAMIN D TO ACCELERATE ORTHODONTIC TOOTH MOVEMENT | ACCELERATED ORTHODONTIC TOOTH MOVEMENT WITH THE USE OF SYSTEMIC VITAMIN D - A RANDOMISED CONTROL TRIAL | CTRI/2020/02/023504 |
| Investigating the Effects of Single Dose and Co-Supplementation of Vitamin D and Omega-3 in women with poly cystic ovary syndrome | Investigating the Effects of Single Dose and Co-Supplementation of Vitamin D and Omega-3 on Anthropometric Factors, Lipid and Glycemic Profile, and the Status of Sex Hormone Binding Globulin in Women with Polycystic Ovary Syndrome | IRCT20100223003408N7 |
| Observation of the Effect of Vitamin D Supplementation on Chronic Course of Patients With Ulcerative Colitis Based on Vitamin D Receptor Fok I Gene Polymorphism | Observation of the Effect of Vitamin D Supplementation on Chronic Course of Patients With Ulcerative Colitis Based on Vitamin D Receptor Fok I Gene Polymorphism,a Prospective Cohort Study | NCT04309058 |
| Exploring the Effects of Vitamin D Supplementation on the Chronic Course of Patients With Crohn's Disease With Vitamin D Deficiency | Exploring the Effects of Vitamin D Supplementation on the Chronic Course of Patients With Crohn's Disease With Vitamin D Deficiency,a Prospective Cohort Study | NCT04308850 |
| Randomized controlled trial for vitamin D supplementation to improve metabolic syndrome in patients with depression | Randomized controlled trial for vitamin D supplementation to improve metabolic syndrome in patients with depression | ChiCTR2000030130 |
| Effects of Enteral Supplement Vitamin D Incritically Ill Patients | Investigating the Effects of Enteral Supplement of Vitamin D in Critically Ill Patients With Vitamin D Deficiency | NCT04292873 |
| The Effects of spinal stabilization and Vitamin D on the tumor necrosis factor-a and interleukin-10 in women with Chronic Low Back Pain | The Effects of spinal stabilization exercise and Vitamin D intake on the levels of tumor necrosis factor-a and interleukin-10 in women with Chronic Low Back Pain | IRCT20190831044650N1 |
| Vitamin D Oral Gel for Prevention of Radiation Induced Oral Mucositis | The Effectiveness of Topical Oral Vitamin D Gel in Prevention of Radiation-induced Oral Mucositis | NCT04308161 |
| The effect of vitamin D replacement on patients with subclinical hypothyroidism | The effect of Vitamin D Replacement on patients with subclinical hypothyroidism: A randomized clinical trial | IRCT20190610043856N1 |
| Effect of 8 weeks of Pilates exercise and vitamin D on Tumor necrosis factor-a and interleukin-10 levels in overweight men | Investigating the changes of Tumor necrosis factor-a and Interleukin-10 after 8 weeks of regular Pilates exercise and vitamin D intake in overweight men | IRCT20190831044650N2 |
| Native vs. active vitamin D for children with chronic kidney disease: a cross-over study | Native vs. active vitamin D for children with chronic kidney disease: a cross-over study - Native vs. active vitamin D for children with chronic kidney disease: a cross-over study: native vs. active vitamin D for CKD children | JPRN-UMIN000039891 |
| Effect of Aerobic Interval Training With Vitamin D Supplement on Functional Capacity and Perceived Myalgia | Effect of Aerobic Interval Training Combined With Vitamin D Supplement on Functional Capacity and Perceived Myalgia in Middle Aged Obese Women | NCT04319289 |
| Vitamin D on Prevention and Treatment of COVID-19 | Effect of Vitamin D Administration on Prevention and Treatment of Mild Forms of Suspected Covid-19 | NCT04334005 |
| Vitamin D dose response on bone resorption rates and calcium absorption in vitamin D deficient and sufficient states | Stable Isotope studies to understand Vitamin D dose response on Bone Resorption rates and fractional Calcium absorption in Vitamin D deficient and sufficient states. | CTRI/2020/03/024395 |
| Study on vitamin D effect in Severe acute malnutrition children with complication | Effect of Vitamin D Therapy in children with Severe Acute Malnutrition With Medical complication:An Open Label Randomised Controlled Trail. | CTRI/2020/04/024435 |
| A Study of Hydroxychloroquine, Vitamin C, Vitamin D, and Zinc for the Prevention of COVID-19 Infection | A Randomized, Double-Blind, Placebo-Controlled Phase IIa Study of Hydroxychloroquine, Vitamin C, Vitamin D, and Zinc for the Prevention of COVID-19 Infection | NCT04335084 |
| Effect of vitamin D3 in autism children | Efficacy of Vitamin D3 in the management of mild to moderate autistic children - A Randomized controlled trial - NIL | CTRI/2024/01/061228 |
| The effect of vitamin D on quality of life and symptom severity of symptomatic uterine Leiomyoma in women | The effect of vitamin D on quality of life and symptom severity of symptomatic uterine Leiomyoma in women | IRCT20160821029446N7 |
| Case Control Study of Vitamin D Status and Adult Multidrug-resistant Pulmonary Tuberculosis in Maharashtra, India | Case Control Study of Vitamin D Status and Adult Multidrug-resistant Pulmonary Tuberculosis in Maharashtra, India | NCT04342598 |
| Vitamin D and Resistance Exercise in Elderly (NUTRIAGINGVitD) | Vitamin D and Resistance Exercise in Elderly | NCT04341818 |
| Vitamin D as a Key Player in Rheumatoid Arthritis | Vitamin D as a Key Player in Rheumatoid Arthritis Immune Response | NCT04344405 |
| Evaluation of vitamin D effect on diabetic macular edema | Effect of intravitreal bevacizumab (Avastin®) plus vitamin D supplementation on diabetic macular edema in vitamin D deficient patients | IRCT20200407046978N1 |
| effect of vitamin D on sleep quality in hemodialysis patients | effect of vitamin D on sleep quality in hemodialysis patients | IRCT20200223046593N1 |
| A clinical trial comparing daily versus intermittent vitamin D supplementation in children with nephrotic syndrome | Randomized controlled trial to compare the effect of intermittent versus daily vitamin D supplementation on vitamin D status in children with nephrotic syndrome | CTRI/2020/04/024598 |
| Adjuvant Effects of Vitamin A and Vitamin D Supplementation on Treatment of Children With ADHD | Adjuvant Effects of Vitamin A and Vitamin D Supplementation on Treatment of Children With ADHD:A Randomized, Double Blind, Placebo-controlled, Multicentric Trial. | NCT04284059 |
| vitamin D administration on chronic liver disease | Effects of Vitamin D administration on patients with chronic liver disease | JPRN-jRCTs031200015 |
| Vitamin D supplementation reduces serum uric acid concentration in patients with prediabetes and hyperuricaemia | Study to develop clinical and genetically-related methods to use vitamin D and calcium for the prevention of osteoporosis and related disease in Thais | TCTR20200219002 |
| Efficacy of Vitamin D Supplementation on Recurrent episodes of Acute Otitis Media among Under Five Children in Alexandria: Randomized Control Study | Efficacy of Vitamin D Supplementation on Recurrent episodes of Acute Otitis Media among Under Five Children in Alexandria: Randomized Control Study | PACTR202002786256542 |
| Supplementing high dose of oral vitamin D to lactating mother every 3 months to provide vitamin D to their infants till 6 months | Effectiveness of 3 monthly high dose of maternal vitamin D supplementation in preventing vitamin D deficiency in infants until 6 months of age : A prospective Case control study | CTRI/2019/11/022050 |
| Vitamin D supplementation on surrogate markers of ageing, ageing-related genes, glycemic and metabolic markers in north Indian Individuals with the prediabetes | Randomized control trial of vitamin D supplementation on surrogate markers of ageing (leukocyte telomerase length and telomerase activity), association/interactions with selected ageing-related genes (including myostatin, α-Actinin-3, vitamin D receptor, Forkhead box O3 and Sirtuin1), glycemic and metabolic markers in north Indian Individuals with the prediabetes | CTRI/2019/11/022106 |
| Evaluating Vitamin D3 Supplement on Post-Op Outcomes | A Prospective, Tripled-Blinded, Randomized Controlled Trial Evaluating Vitamin D3 Supplementation on Post-Operative Functional and Clinical Outcomes Following Total Knee Arthroplasty | NCT04177758 |
| Vitamin D, Insulin Resistance, and Cardiovascular Disease | Vitamin D, Insulin Resistance, and Cardiovascular Disease | NCT00736632 |
| Evaluation the treatment effect of vitamin D deficiency on the improvement of dry eye | Evaluation the treatment effect of vitamin D deficiency on the improvement of dry eye | IRCT20190407043184N1 |
| The effects of vitamin D supplementation on glycemic control and oxidative stress parameters in patients with type 2 diabetes mellitus | The effects of vitamin D supplementation on insulin resistance, Castelli Risk Index I and TG/ TBARS Index in patients with type 2 diabetes: a 6-month follow-up randomized controlled study | ISRCTN25609316 |
| The Effect of Vitamin D on the Treatment of Patients with Chronic Musculoskeletal Pain | The Effect of Vitamin D on the Treatment of Patients with Chronic Musculoskeletal Pain with Serum Vitamin D Deficiency | IRCT20191019045153N1 |
| A clinical trial to study the effect of Vitamin D3 supplementation on lung function in obstructive airway diseases | Comparative analysis of various obstructive airway disease and effect of Vitamin D3 supplementation on symptoms and lung function with special emphasis on DLCO | CTRI/2019/12/022359 |
| Preoperative Hypocalcaemia, a Comparative Clinical Trial | Vitamin D and Calcium Supplementation to Prevent Post-total Thyroidectomy Hypocalcaemia, a Comparative Clinical Trial | NCT04212533 |
| A trial of neuroprotective vitamin D in traumatic brain injury patients | Investigating the effect of neuroprotective vitamin D on Traumatic Brain injury patients | IRCT20191026045243N2 |
| Oral and intramuscular administration of vitamin D in patients with nonalcoholic fatty liver | Comparison of serum level of vitamin D in Patients with Non-alcoholic Fatty Liver Disease (NAFLD) after administration of Oral & Intramuscular Vit D | IRCT20190701044062N2 |
| Influence of Kidney Performance and Magnesium on Formation of (OH)2-vitamin D3 | Influence of Kidney Performance and Magnesium on the Biomarkers of Vitamin D | NCT04237480 |
| Effect of Vitamin D on neonatal respiratory distress | Comparison of the incidence of respiratory distress syndrome in neonates of mothers receiving vitamin D with those who do not receive | IRCT20190814044529N1 |
| Effect of vitamin D supplementation on type 2 diabetic patients with hypertension. | Effect of vitamin D supplementation on flow-mediated dilatation (FMD), Oxidized LDL (oxLDL) and Intracellular adhesion molecule 1 (ICAM1) in type 2 diabetic patients with hypertension. | IRCT20191223045861N1 |
| The effect of Vitamin D use on dizziness treatment in elderly | The effect of Vitamin D supplementation on recurrence of Benign Paroxysmal Positional Vertigo in the elderly | RBR-5hk245 |
| To identify the benefits of supplementation of vitamin D under supervision as compared to self administration among vitamin D deficient staff working in anesthesia department | A prospective, randomized controlled clinical trial to assess the efficacy of directly observed vitamin D supplementation among vitamin D deficient anesthesia workers | CTRI/2020/01/023087 |
| Study of vitamin D level modification on mortality rate and postoperative complications in children after VSD repair surgery | Study of vitamin D level correction on mortality rate and postoperative complications in children after VSD repair surgery in Shahid Chamran Hospital in Isfahan | IRCT20200123046231N1 |
| Short Term Cardiovascular Effects and Oxidative Status of Calcium and Vitamin D Supplementation of Postmenopausal Hypertensive Blacks Women | Short Term Cardiovascular Effects and Oxidative Status of Calcium and Vitamin D Supplementation of Postmenopausal Hypertensive Blacks Women in Sub Saharan Africa | NCT04255992 |
| Effects of Platelet-rich Fibrin and Vitamin D? Injections on Root Resorption | Assessment of the Effects of Platelet-rich Fibrin and Vitamin D? Injections on Root Resorption: A Randomized Controlled Clinical Trial | NCT06198322 |
| Effect of Vitamin D Intake on Maternal of Delivery on Retinopathy of prematurity in Infants | Effect of Vitamin D Intake on Maternal of Delivery on Retinopathy of prematurity in Infants | IRCT20110807007244N3 |
| Evaluating if the improved vitamin D status through sun exposure, food or supplements could benefit Type 2 Diabetes patients according to blood test biomarkers (HbA1c) | The Role of Vitamin D in Controlling and Reducing Diabetes Mellitus Risks via changes in HbA1c and blood glucose | ACTRN12620000121965 |
| Impact of vitamin D deficiency on prognosis of patients with novel coronavirus pneumonia (COVID-19) | Impact of vitamin D deficiency on prognosis of patients novel coronavirus pneumonia (COVID-19) | ChiCTR2000029732 |
| The influence of vitamin D and vitamin E in the treatment of infertile women with polycystic ovary syndrome | Assessing the effect of adding vitamin D and vitamin E to metformin with dydrogesterone regimen? in the treatment of infertile women with polycystic ovary syndrome | IRCT2016022821653N5 |
| Determining the effect of vitamin D3 and positive group counseling with lifestyle changes in premenstrual women of reproductive age | Survey the effect of vitamin D3 tablet intake, positivism group consulting with changing in life style in the treatment of premenstrual syndrome in women | IRCT20191231045967N1 |
| PRagmatic Analysis of Vitamin D in ANCA-Associated Vasculitis | "A Local Interventional Study in a Cohort of Patients With GPA, MPA and EGPA (PART 2 of ""Vitamin D Status in ANCA-associated Vasculitis: Analysis of RDCRN-VCRC and Local Clinic Cohorts of Patients With GPA, MPA and EGPA"")" | NCT04280601 |
| Vitamin D Regulation of Gut Specific B Cells and Antibodies Targeting Gut Bacteria in Inflammatory Bowel Disease | Vitamin D Regulation of a4ß7+ B Cell Immunophenotypes and Mucosal Antibody Response to Commensal Gut Bacteria in Patients With Inflammatory Bowel Disease | NCT04828031 |
| Defining Vitamin D Insufficiency in School Age Children: A Randomized Placebo Controlled Trial of Vitamin D3 | Defining Vitamin D Insufficiency in School Age Children: A Randomized Placebo Controlled Trial of Vitamin D3 | NCT00732758 |
| Evaluation of the Clinical and Psychological Impact of Vitamin D Replacement in Adolescent Females at Risk for Polycystic Ovarian Syndrome (PCOS) | Evaluation of the Clinical and Psychological Impact of Vitamin D Replacement in Adolescent Females at Risk for Polycystic Ovarian Syndrome (PCOS) | NCT04355572 |
| Effect of Vitamin D and turmeric in lymphoma patients. | Efficacy and safety of combination of cholecalciferol and Curcuma longa as an add-on therapy to standard R-CHOP in Diffuse Large Bcell Lymphoma (DLBCL) - a randomized open label 2x2 factorial trial - E-SCHOLAR | CTRI/2020/06/025818 |
| Vitamin D Regulates the Expression of Glucocorticoid Receptors in Blood of Severe Asthmatic Patients | Vitamin D Regulates the Expression of Glucocorticoid Receptors in Blood of Severe Asthmatic Patients | NCT04443387 |
| Vitamin D Supplementation in Patients With COVID-19 | Vitamin D Supplementation in Patients With COVID-19: A Randomized, Double-blind, Placebo-controlled Trial | NCT04449718 |
| Study of the effect of vitamin D3 on improvement of bacterial vaginosis | Study of the effect of high dose vitamin D3 on improvement of bacterial vaginosis in vitamin D deficient women | IRCT20150609022637N7 |
| EFFECT OF DAILY VITAMIN D SUPPLEMENTATION ON VITAMIN D LEVELS AT 3 MONTHS IN CHILDREN WITH EPILEPSY RECEIVING SODIUM VALPROATE MONOTHERAPY | EFFECT OF DAILY VITAMIN D SUPPLEMENTATION ON VITAMIN D LEVELS AT 3 MONTHS IN CHILDREN WITH EPILEPSY RECEIVING SODIUM VALPROATE MONOTHERAPY | TCTR20200621002 |
| Perioperative versus Postoperative Oral Calcium and Vitamin D Supplement to Prevent Symptomatic Hypocalcemia after Total Thyroidectomy: A Randomized Controlled Trial | Perioperative versus Postoperative Oral Calcium and Vitamin D Supplement to Prevent Symptomatic Hypocalcemia after Total Thyroidectomy: A Randomized Controlled Trial | TCTR20200622005 |
| Treatment of postmenopausal genital syndrome | Comparison of the therapeutic effect of conjugated estrogen vaginal cream with vitamin D and E combination vaginal cream in the treatment of postmenopausal genital syndrome | IRCT20151123025202N10 |
| Evaluation of the effect of vitamin D on diabetic patients | Determining the effect of vitamin D on the expression of inflammatory NLRP3 genes and oxidative stress in Patients with type 2 diabetes | IRCT20200616047795N1 |
| Clinical trial on changes in 25OHD3 level and vitamin D metabolites level in urine under the condition of increasing serum 25OHD level | Clinical trial on changes in 25OHD3 level and vitamin D metabolites level in urine under the condition of increasing serum 25OHD level - Clinical trial on changes in 25OHD3 level and vitamin D metabolites level in urine under the condition of increasing serum 25OHD level | JPRN-UMIN000040867 |
| Comparison of Oral & Intramuscular injection form of Vitamin D in patients with vitamin D deficiency | Comparison of Oral & Intramuscular injection form of Vitamin D prescription on the Serum 25-Hydroxy-vitamin D level in patients with vitamin D deficiency | IRCT20191030045277N1 |
| effect of vitamin D treatment on the dry eye parameters in 1394-1395 | Prevalence of dry eye in vitamin D deficiency patients that referred to the Jahrom Honary Clinic and the effect of vitamin D treatment on the dry eye parameters in 1394-1395 | IRCT20200615047785N1 |
| The effect of vitamin D on bone age | The frequency of vitamin D deficiency in sixth grade girls in Jahrom city and its relationship with bone age and entropometric indicators before and after treatment in September 2015 | IRCT20200615047785N2 |
| The effect of vitamin D intake of mother in labor on the prognosis of premature children | The effect of vitamin D intake in mothers with preterm labor on prognosis of children at two years of age | IRCT20110807007244N4 |
| High Dose Vitamin D Supplementation in Children With Sickle Cell Disease | Safety and Efficacy of Monthly High-Dose Vitamin D3 Supplementation in Children and Adolescents With Sickle Cell Disease and Healthy Counter Parents | NCT06274203 |
| To Compare the safety and efficacy of Vitamin D, with Magnesium in mild to moderate Covid 19 patients | Randomized, Double Blind, Parallel Group Study of Vitamin D3 & Magnesium in Covid 19 Infection - Covid | CTRI/2020/06/026189 |
| To study the safety and efficacy of Vitamin D3, Vitamin K2-7 & magnesium , in prevention of COVID 19 infection in health care professional (HCP) | Randomized, Double Blind, Comparative, Parallel group study of Vitamin D3 ( Cholecalciferol ) Vitamin K2-7 & magnesium in prophylaxis of COVID-19 infection in health care professionals - Covid19 | CTRI/2020/06/026191 |
| Vitamin D and Mindfulness on Diabetes | Synergistic effect of Vitamin D Supplement and mindfulness on insulin resistance, pain severity, Pain-Related Disability, Quality of Life and cognitive function in Vitamin D Deficient Type 2 Diabetic mellitus (T2DM) : A randomized clinical | TCTR20200629004 |
| PRevention of COVID-19 With Oral Vitamin D Supplemental Therapy in Essential healthCare Teams | PROTECT RCT (PRevention of COVID-19 With Oral Vitamin D Supplemental Therapy in Essential healthCare Teams | NCT04483635 |
| Estimation vitamin D3 in patients having gum disease and those having healthy gums | Evaluation Of Serum Vitamin D3 In Periodontally Healthy And Diseased Individuals | CTRI/2020/06/026236 |
| Effect of vitamin D supplementation in novel corona virus 2019 | Effect of vitamin D supplementation in diagnosed cases of 2019 Novel Coronavirus; a randomized clinical trial | IRCT20110726007117N11 |
| A Phase III Randomized, Placebo-Controlled Study to Evaluate the Effect of Odanacatib (MK-0822) on Bone Mineral Density (BMD) and Overall Safety, and to Estimate the Effect of Odanacatib (MK-0822) on Bone Micro-architecture in Postmenopausal Women Treated with Vitamin D | A Phase III Randomized, Placebo-Controlled Study to Evaluate the Effect of Odanacatib (MK-0822) on Bone Mineral Density (BMD) and Overall Safety, and to Estimate the Effect of Odanacatib (MK-0822) on Bone Micro-architecture in Postmenopausal Women Treated with Vitamin D | EUCTR2008-004504-31-SE |
| A study on the effect of vitamin D3 supplementation on sleep quality in adults | Assessment of the impact of Vitamin D3 supplementation on sleep quality in adults with vitamin D deficiency - AVIDS | CTRI/2024/01/061970 |
| Effect of training, caloric restriction and vitamin D supplementation on body composition, lipid profile and plasma BDNF | Effect of four-week Water Aerobics training with and without caloric restriction and vitamin D supplementation on body composition, lipid profile and peripheral blood BDNF in adult females with overweight and obesity | IRCT20200411047036N1 |
| The effects of vitamin K2 combined with vitamin D supplementation on bone health and cardiovascular disease: a double-blind randomized controlled trial | The effects of vitamin K2 combined with vitamin D supplementation on bone health and cardiovascular disease: a double-blind randomized controlled trial | ChiCTR2000033525 |
| Evaluation of the effect of vitamin D3 supplementation in doses of 1000 and 3000 IU / day on hyperglycemic control, wound healing,wound infection and sepsis incidence and length of stay in hospital in burn patients | Evaluation of the effect of vitamin D3 supplementation in doses of 1000 and 3000 IU / day on hyperglycemic control, wound healing,wound infection and sepsis incidence and length of stay in hospital in burn patients | IRCT20200420047141N1 |
| The LEAD COVID-19 Trial: Low-risk, Early Aspirin and Vitamin D to Reduce COVID-19 Hospitalizations | The LEAD COVID-19 Trial: Low-risk, Early Aspirin and Vitamin D to Reduce COVID-19 Hospitalizations | NCT04363840 |
| Measurement of vitamin D level and nutritional status in widespread pain patient and compare the effect of vitamin D therapy and physical therapy among them. | Status of vitamin D and nutrition among widespread pain patient and their response to vitamin D therapy and physical therapy | CTRI/2020/04/024845 |
| Investigation of the effect of vitamin D treatment on asthenospermia in infertile patients with vitamin D insufficiency | Evaluation of the effect of vitamin D therapy on asthenospermia in infertile patients with vitamin D insufficiency | IRCT20200412047046N1 |
| An Evaluation of the Effect of Vitamin D Supplementation on Depressive Symptoms Among Chinese Adolescents | Effect of Vitamin D Supplementation on Depressive Symptoms in Chinese Adolescents | NCT06247930 |
| High vs Low Dose Vitamin D in Patients With Diabetic Peripheral Neuropathy | High-dose Vitamin D Supplementation Reduces Inflammation and Improves Microcirculation in Patients With Diabetic Peripheral Neuropathy | NCT04377399 |
| Vitamin D deficiency in children and adolescents with Type I Diabetes Mellitus: influence of vitamin D supplementation and variations in the Fok-I gen on glycemic control | Vitamin D deficiency in children and adolescents with Type I Diabetes Mellitus: influence of vitamin D supplementation and Fok-I polymorphism on glycemic control | RBR-5x82zr |
| The effect of vitamin D supplementation in preventing recurrence of rhinosinusitis with nasal polyps | The effect of vitamin D supplementation on prevention of recurrence of rhinosinusitis with nasal polyp after endoscopic surgery | IRCT20171030037093N36 |
| Comparison of the effects of Alendronate and Vitamin D administration on lumbosacral vertebral fusion | Comparison of the effects of Alendronate and Vitamin D administration on lumbosacral vertebral fusion in patients undergoing posterior spinal cord fusion | IRCT20180826040869N2 |
| Ayurvedic Diet Regimen for Vitamin D deficiency in Obese females | Effect of Manda Peya Vilepi Pathyakalpana on Hypovitaminosis D in obese females: A Randomised controlled clinical study | CTRI/2020/05/024993 |
| Should Ranges of Vitamin D be Redefined to Prevent or Treat Viral Infections? | Is it Too Low to Prevent us From Infections? Should Ranges of Vitamin D be Redefined to Prevent or Treat Viral Infections? | NCT04394390 |
| Ultra dose vitamin D supplementation in ventilator associated pneumonitis (VAP) patients | Effects of ultra dose vitamin D supplementation on remission, morbidity and mortality of ventilator associated pneumonitis (VAP) patients: A Randomized Controlled Trial study. | IRCT20200324046844N1 |
| The relationship of preoperative vitamin D concentration and Postoperative Cognitive Dysfunction in elderly female patients: a prospective cohort study | The relationship of preoperative vitamin D concentration and Postoperative Cognitive Dysfunction in elderly female patients: a prospective cohort stu | ChiCTR2000033130 |
| Assessment of Serum Levels of Vitamin D, Vitamin B12 and Folic Acid Among Patients With Lifelong Premature Ejaculation and Non-responding to Dapoxetine Treatment. | Vitamin D, Vitamin B12, and Folic Acid Among Patients With Lifelong Premature Ejaculation and Non-responding to Dapoxetine Treatment. | NCT04355949 |
| Cholecalciferol to Improve the Outcomes of COVID-19 Patients | Randomized Controlled Trial of High Dose of Vitamin D as Compared With Placebo to Prevent Complications Among COVID-19 Patients | NCT04411446 |
| Effect of vitamin D supplement in regulation of blood pressure | Investigating the effect of vitamin D3 supplementation in blood pressure control in essential hypertensive patients | IRCT20080901001165N57 |
| Study to Evaluate Efficacy of Odanacatib (MK-0822) on Bone Mineral Density (BMD) and Bone Micro-architecture and Overall Safety in Postmenopausal Women (MK-0822-031) | A Phase III Randomized, Placebo-Controlled Study to Evaluate the Effect of Odanacatib (MK-0822) on Bone Mineral Density (BMD) and Overall Safety, and to Estimate the Effect of Odanacatib (MK-0822) on Bone Micro-architecture in Postmenopausal Women Treated With Vitamin D | NCT00729183 |
| The evaluation of effect of administration of vitamin D on glycemic index in patient with Diabetes Mellitus type1( DM1) | The evaluation of the effect of administering of vitamin D on glycemic control in pediatric patients with type1 Diabetes Mellitus | IRCT20190917044806N1 |
| Fortification and supplementation effect on vitamin D levels | Comparison of the effects of vitamin D fortified oil and vitamin D supplement in improving vitamin D status and lipid profile among 18-30 healthy persons. | IRCT20180708040401N2 |
| Effects of vitamin D3 supplementation on oxidative and inflammatory stress markers in overweight or obese workers | Effects of vitamin D3 supplementation on inflammation and oxidative stress markers in overweight and obese women: a randomized, double-blind, placebo-controlled clinical trial | RBR-39srtp |
| Investigating the effect of vitamin D on discoid lupus erythematosus | The effectiveness of vitamin D injection compared to placebo on disease severity in patients with discoid lupus erythematosus | IRCT20220506054753N1 |
| Impact of vitamin D supplement in erectile dysfunction treatment with Phosphodiesterase type 5 inhibitor | Impact of vitamin D supplement in erectile dysfunction treatment with Phosphodiesterase type 5 inhibitor | TCTR20200605004 |
| Use of three different drugs for reduction in severity of COVID-19 disease using Arterial Stiffness as a clinical marker | Comparing efficacies of Combinations of Vitamin D3 and Magnesium,Cilnidipine and Telmisartan therapies for reduction in severity of COVID-19 disease using Arterial Stiffness as a clinical marker:A Randomized, Parallel group Comparative Study. - ASCOTH Study | CTRI/2021/03/032385 |
| Efficacy of preoperative Vitamin C and combination of Vitamin C, Vitamin D and Zinc for post operative sore throat in patients undergoing elective surgeries under general anaesthesia at Pravara Rural Hospital, Loni. | Efficacy of Preoperative Vitamin C and Combination of Vitamin C, Vitamin D and zinc for postoperative sore throat in Patients undergoing elective Surgeries under General Anaesthesia at Pravara Rural Hospital, Loni. | CTRI/2021/04/032508 |
| Analysing compliance with Calcium and Vitamin D supplementations in patients receiving bone resorptive agents. | Analysing compliance with Calcium and Vitamin D supplementations in Cancer patients receiving bone resorptive agents. | ACTRN12621000383864 |
| Sarcomeal oral supplement in treating diabetic sarcopenia | Investigating the effect of Sarcomeal oral supplementation and vitamin D3 on muscle parameters and metabolic factors in patients with diabetic sarcopenia: a randomized open-label clinical trial with parallel groups | IRCT20230831059311N1 |
| Randomized Trial of Enteral Vitamin D Supplementation in Infants < 28 Weeks Gestational Age or <1000 Grams Birth Weight | Randomized Trial of Enteral Vitamin D Supplementation in Infants < 28 Weeks Gestational Age or <1000 Grams Birth Weight | NCT05694689 |
| Effect of Vitamin D Supplementation on Health of Low Birth Weight Infants | Randomised Controlled Trial to Evaluate the Preventive Effect on Mortality and Serious Morbidity/ Hospitalisations of Daily Vitamin D Supplements in Small for Gestational Age Term Infants | NCT00415402 |
| Study of the Effect of Combined Use of Vitamin D in Low-dose-oral immunotherapy for Children with Cow's Milk Allergy | Study of the Effect of Combined Use of Vitamin D in Low-dose-oral immunotherapy for Children with Cow's Milk AllergyDouble-Blind, Randomized, Placebo-Controlled Trial | JPRN-jRCTs031220589 |
| Influence of BsmI Polymorphism genetic variation on the effect of high doses of Vitamin D supplementation on Inflammation, Stress, Methylation and Bone Mineral Density in patients with Cystic Fibrosis | Influence of the BsmI Polymorphism (rs 1544410) of the VDR gene on the effect of Supplementation with Megadoses of Vitamina D 3, Process Inflammatory and Oxidative Estress, Metthylation of the VDR Gene and Bone Mineral Density in patients com Cystic Fibrosis | RBR-104yt7rh |
| Establishing the Vitamin D Requirements During Lactation | Establishing the Vitamin D Requirements During Lactation | NCT00412074 |
| Vitamin D Status of Pregnant Women and Their Children in Eau Claire, South Carolina | Vitamin D Status of Pregnant Women and Their Children in Eau Claire, South Carolina: A Prevalence and Supplementation Model for Community Health Care Centers in the U.S. | NCT00412087 |
| Comparison of the effect of vitamin D and vitamin C cream and their composition on pregnancy striae in first pregnant women | Comparison of the effect of vitamin D and vitamin C cream and their composition on pregnancy striae in first pregnant women | IRCT20220509054799N1 |
| Evaluation of vitamin D,E combination therapy on women with primary Dysmenorrhea | Evaluation of Vitamin D,E Combination Therapy on women with Primary Dysmenorrhea in Imam Hossein Hospital | IRCT20220720055506N1 |
| Effect of vitamin D supplementation on bone health in children with blood cancer | Effect of vitamin D supplementation during induction phase of chemotherapy on bone mineral homeostasis in children with acute lymphoblastic leukemia: randomized double blind placebo controlled trial | CTRI/2023/02/049382 |
| Secondary prevention of type 1 diabetes in children and adolescents aged 6 months - 18 years using oral Vitamin D (calcitriol and analogues) | Secondary PREvention of type 1 diabetes with oral CALcitriol and analogues in children and adolescents aged 6 months - 18 yrs | ISRCTN17354692 |
| Effects of vitamin D3 on symptoms, brain imaging and intestinal microflora in children with ASD | Effects of vitamin D3 on symptoms, brain imaging and intestinal microflora in children with ASD | ChiCTR2100051141 |
| Prevalence of Vitamin D deficiency in Australian adults before and after Vitamin D supplementation and frequency of respiratory infection: The Vitamin D study | A cross-sectional study of Vitamin D levels in Australian adults before and after Vitamin D supplementation and frequency of respiratory infection | ACTRN12621001259831 |
| Vitamin D Time-Course Pilot Study | Time-course of parathyroid hormone change following vitamin D supplementation in vitamin D insufficient elderly: a pilot study. | ACTRN12606000434594 |
| Probiotics in Paget's disease | Measuring the effect of probiotics or calcium/vitamin D supplements in patients with Paget's disease of bone | ISRCTN12180483 |
| Calcium and Vitamin D Malnutrition in Elderly Women | Calcium and Vitamin D Malnutrition in Elderly Women | NCT00352170 |
| The Investigation of Vitamin D and Menstrual Cycles Trial, the inVitD Trial: A Phase II Randomized Trial | The Investigation of Vitamin D and Menstrual Cycles Trial: A Phase II Clinical Trial | NCT05050916 |
| Dietary vitamin D supplementation for post- menopausal women | Effect of dietary vitamin D2 supplementation on vitamin D status in post- menopausal women | CTRI/2023/02/049526 |
| VitD3 Supplementation in Patients With Multiple Myeloma | EVALUATION OF CHOLECALCIFEROL (VitD3) MAINTENANCE SUPPLEMENTATION IN PATIENTS WITH MULTIPLE MYELOMA (MM) UNDERGOING TRANSPLANTATION AND IN COMBINATION WITH LENALIDOMIDE MAINTENANCE | NCT05846880 |
| Vitamin D Supplementation in Healthy Adults in Prolonged Endurance Exercise | Effects of Vitamin D Supplementation on Biochemical Reaction and Skeletal Muscle Synthesis in Prolonged Endurance Exercise and Cluster Set Configurations of Resistance Training | NCT05781620 |
| A Randomized, Double-Blind, Placebo-Controlled, Multicenter 16 Week Study to Assess the Effect of Vitamin D3 8400 IU Once Weekly on Body Sway and Neuromuscular Function in Men and Women Over 70 Years Old - Vitamin D Proof of Concept Study | A Randomized, Double-Blind, Placebo-Controlled, Multicenter 16 Week Study to Assess the Effect of Vitamin D3 8400 IU Once Weekly on Body Sway and Neuromuscular Function in Men and Women Over 70 Years Old - Vitamin D Proof of Concept Study | EUCTR2005-002113-21-DE |
| The effect of two different type of light-emitting devices on serum vitamin D level in healthy adults | The effect of two attachable light-emitting devices of different wavelengths on serum vitamin D level in healthy adults | KCT0008207 |
| Effect of Serum Vitamin D Level on the Efficacy of Peg-interferon Treatment in CHB | Effect of Serum Vitamin D Level and Vitamin D Receptor on the Efficacy of Pegylated Interferon in Patients With Chronic Hepatitis B With Low Level HBsAg Treated by Nucleos(t)Ide Analogues | NCT05753280 |
| Effect of Vitamin D3 on level of calcidiol (25[OH]D), cathelicidin, Interleukin-6, Interleukin-8, Interleukin-10, and severity of pneumonia in children | Effect of Vitamin D3 on level of calcidiol (25[OH]D), Interleukin-10 (IL-10), and severity of pneumonia in children: A Double-blinded Randomized Controlled Trial | TCTR20230223002 |
| A Research of the genetic-neural mechanisms and vitamin D intervention in cerebral small vessel disease: a prospective, non-random, and open label single-center study | A Research of the genetic-neural mechanisms and vitamin D intervention in cerebral small vessel disease: a prospective, non-random, and open label single-center study | ChiCTR2300068710 |
| Effect of HMB and vitamin D supplementation on osteosarcopenia in older persons | A randomised, double-blind, placebo-controlled trial to determine the effect of vitamin D alone or in combination with HMB on osteosarcopenia in older persons | ACTRN12619000636156 |
| Nutritional Intervention for Age-related Muscular Function and Strength Losses | A Double Blind Study on the Efficacy of a Combination of Beta-hydroxy-beta-methylbutyrate and Vitamin D on Muscular Strength and Functionality in Older Adults. | NCT00874575 |
| Vitamin D, Epigallocatechin Gallate, D-chiro-inositol and Vitamin B6 in Uterine Fibroid | The Use of Vitamin D in Combination with Epigallocatechin Gallate, D-chiro-inositol and Vitamin B6 in the Treatment of Women with Uterine Fibroid | NCT05448365 |
| Effect of Preoperative Vitamin D Supplementation in Liver Transplant Recipients With Vitamin D Deficiency on Post Transplant Outcomes | Effect of Preoperative Vitamin D Supplementation in Liver Transplant Recipients With Vitamin D Deficiency on Post Transplant Outcomes | NCT06736093 |
| Comparison between Intralesional MMR and Intralesional Vitamin D3 in treatment of cutaneous warts using dermoscopy | Evaluation of efficacy of intralesional MMR with Vitamin D3 in cutaneous warts using dermoscopy - NIL | CTRI/2024/11/077359 |
| A multicenter, open label, randomized study to investigate the efficacy of subcutaneous immunotherapy combined with vitamin D3 in children and adolescent patients with allergic rhinitis | A multicenter, open label, randomized study to investigate the efficacy of subcutaneous immunotherapy combined with vitamin D3 in children and adolescent patients with allergic rhinitis | ChiCTR2400093283 |
| Effect of Oral Vitamin D3 and Calcium Supplementation on Muscle and Bone Health Among Rural Post-menopausal Women | Effect of Oral Vitamin D3 and Calcium Supplementation on Sarcopenia Indices and Osteoporosis Among Rural Post-menopausal Women | NCT06900387 |
| Vitamin D3 fortified antihypertensive as an effective treatment for hypertension in stroke | Exploring the effects of Vitamin D fortified Telmisartan in ishchaemic stroke patients : A novel therapeutic approach - Nil | CTRI/2024/12/078239 |
| Effect of vitamin D supplementation combined with a very low-carbohydrate diet in patients with overweight or obese | Effect of vitamin D supplementation combined with a very low-carbohydrate diet in patients with overweight or obese | ChiCTR2500096116 |
| Effects of an omega-3, curcumin, and vitamin D3 combination supplement on health parameters in adults with hyperglycemia | Effects of an omega-3, curcumin, and vitamin D3 combination supplement on health parameters in adults with hyperglycemia | TCTR20250122001 |
| The efficacy and safety of daily oral vitamin D2 in the treatment of vitamin D deficiency in adults(VD2-2022) | The efficacy and safety of daily oral vitamin D2 in the treatment of vitamin D deficiency in adults(VD2-2022) | ChiCTR2500096872 |
| A study to show the effect Of Vitamin D Supplementation On Serum Pigment epithelium deerived factor and vascular endothelial growth factor in Diabetic Retinopathy patients | Effect of vitamin D supplementation on serum levels of pigment epithelium derived factors and vascular endothelium growth factors in patients of Diabetic Retinopathy - nil | CTRI/2025/02/080622 |
| A clinical study to see the effects of vitamin D3 in increasing the orthodontic tooth movement. | Evaluation of the effect of local administration of vitamin D3 on the maxillary canine retraction and the amount of external apical root resorption: A Prospective, Double blind, Split mouth randomized control clinical study - NIL | CTRI/2025/02/080685 |
| Effects of Vitamin D and Calcium on Hyperglycemia and Dyslipidemia in Patients Gestational Diabetes | Synergistic Effects of Vitamin D and Calcium Supplementation on Hyperglycemia and Dyslipidemia in Patients With Gestational Diabetes | NCT06896669 |
| The Impact of Correcting Nutritional Vitamin D Deficiency and Bone Mineral Metabolism Disorders on Complications in Hemodialysis | The Impact of Correcting Nutritional Vitamin D Deficiency and Bone Mineral Metabolism Disorders on Complications in Hemodialysis | ChiCTR2500099025 |
| To study effect of Vitamin D supplementation in asthma patients | Comparison of Budesonide plus formoterol and vitamin D versus Budesonide plus formoterol in Asthma at tertiary care hospital A Prospective Open label Randomized controlled Trial | CTRI/2021/09/036165 |
| Vitamin D as an adjuvant therapy to Amitriptyline in migraine | Effectiveness of Vitamin D as adjuvant to Amitriptyline therapy in migraine - A single blinded Randomized placebo controlled trial in a tertiary care institute | CTRI/2021/09/036180 |
| A study of vitamin D supplementation on clinical outcome of COVID-19 infected patients with pneumonia | A study of vitamin D supplementation on clinical outcome of COVID-19 infected patients with pneumonia | TCTR20210906005 |
| Efficacy and safety of vitamin D supplementation in the treatment of pediatric overactive bladder syndrome: a prospective, randomized, controlled, single-center clinical study | Efficacy and safety of vitamin D supplementation in the treatment of pediatric overactive bladder syndrome: a prospective, randomized, controlled, single-center clinical study | ChiCTR2300067454 |
| Effect of Vitamin D on Inflammatory Markers in Type 2 Diabetes Mellitus in Mexico. | Effect of Vitamin D Supplementation on Inflammatory Markers in Mexican Population With Type 2 Diabetes Mellitus | NCT06993064 |
| Study on the effect of vitamin D supplementation and the optimal threshold for blood 25(OH)D in community-based prediabetes elderly cohort | Study on the effect of vitamin D supplementation and the optimal threshold for blood 25(OH)D in community-based prediabetes elderly cohort | ChiCTR2500102303 |
| The effect of vitamin D supplementation at diagnosis of pneumonia upon response to treatment | | ISRCTN61245920 |
| Improving Vitamin D Status In Cystic Fibrosis | Desktop Tanning Unit to Improve Vitamin D Status in Patients With Cystic Fibrosis and Short Bowel Syndrome: A Pilot Study | NCT00450073 |
| Vitamin D and Calcium Homeostasis for Prevention of Type 2 Diabetes | Vitamin D and Calcium Homeostasis for Prevention of Type 2 Diabetes | NCT00436475 |
| Relationship Between Vitamin D and Vitamin B12 Levels and Neuropathic Pain in Lipedema | Relationship Between Vitamin D and Vitamin B12 Levels and Neuropathic Pain in Lipedema:Cross Sectional Study | NCT06338059 |
| Effects of dispersible vitamin D and B12 supplementation in vitamin D and B12 insufficiency | Effects of a novel dispersible supplement containing 2500IU of vitamin D and 1000µg of B12 in restoring vitamin D and B12 insufficiency | ACTRN12624000468527 |
| Effect of Micronutrient Supplementation on Nerve Conduction Velocity in T1D- RCT | Vitamin B12, Vitamin D and Iron Supplementation for Improvement of Nerve Conduction Velocities in Children and Youth With Type 1 Diabetes | NCT06443593 |
| Effects of Vitamin D, Epigallocatechin Gallate, Vitamin B6, and D-Chiro-inositol Combination on Uterine Fibroids | Effects of Vitamin D, Epigallocatechin Gallate, Vitamin B6, and D-Chiro-inositol Combination on Uterine Fibroids: a Randomized Controlled Trial | NCT05409872 |
| The effects of vitamin D and pancreatic enzyme replacement therapy on improving serum vitamin D levels and bone metabolism in patients with chronic pancreatitis | A Multicenter Randomized Clinical Trial to Confirm the Effect of Combined Vitamin D and Pancreatic Enzyme Supplementation Therapy on Improving Serum Vitamin D Level and Bone Metabolism in Patients with Chronic Pancreatitis | KCT0009935 |
| Role of Vitamin D in Treatment of Sudden onset Sensorineural heariong loss | â??Evaluating the role of add on Vitamin D in Sudden Onset Sensorineural Hearing Loss: A Randomized Controlled Trial.â?? | CTRI/2021/09/036670 |
| Evaluation of Vitamin D Requirements During Pregnancy | Evaluation of Vitamin D Requirements During Pregnancy | NCT00292591 |
| Effect of Vitamin D Supplementation on Blood Pressure and Insulin Sensitivity | A randomised phase III study to evaluate the effects of Vitamin D supplementation on patients with low vitamin D levels to reduce blood pressure levels and improve insulin sensitivity | ACTRN12605000017628 |
| Resistive Exercise Versus HIIT on Calcium and Vitamin D | Resistive Exercise Versus High Intensity Interval Training on Calcium and Vitamin D in Premenopausal Women: A Randomized Controlled Trial | NCT05795504 |
| Autism Children with Vitamin D deficiency, Homoeopathic treatment | Efficacy of Syphilinum 10M in correcting Vitamin D deficiency disorder in Autism Spectrum Disorder Children | CTRI/2023/04/051253 |
| Vitamin D in prediction and treatment of post thyroidectomy hypocalcemia | Vitamin D deficiency and it’s impact in prediction and treatment of postoperative hypocalcemia in a cohort of patients undergoing total thyroidectony. | CTRI/2023/04/051296 |
| A study to determine the effect of adjunct Vitamin D treatment in pulmonary tuberculosis patients with Vitamin D deficient. | A prospective interventional randomized parallel group active controlled double blind clinical trial to determine the effect of adjunct Vitamin D treatment on DLC, ESR, serum ADA, serum CRP, Oxygen Saturation, and Body Weight in Vitamin D deficient pulmonary tuberculosis patients. | CTRI/2021/11/037914 |
| The Regulatory Effect and Mechanism of Vitamin D and Omega-3 fatty acids on Immune Injury of People Living With HIV Exposed to Ambient Particulate Matter | The Regulatory Effect and Mechanism of Vitamin D and Omega-3 fatty acids on Immune Injury of People Living With HIV Exposed to Ambient Particulate Matter | ChiCTR2300070301 |
| A COMPARISON OF SINGLE ORAL AND SINGLE INTRAMUSCULAR DOSE IN THE TREATMENT OF VITAMIN D DEFICIENCY | A COMPARISON OF SINGLE ORAL AND SINGLE INTRAMUSCULAR DOSE IN THE TREATMENT OF VITAMIN D DEFICIENCY | PACTR202111705598860 |
| Effects of muscular strength, balance, flexibility, agility and coordination exercises and calcium vitamin ingestion on the function of the muscle / bone of older wonen with osteoporosis | Effects of multicomponent exercise and vitamin D and calcium supplementation on musculoskeletal function and risk of falls in older women with osteoporosis: randomized controlled clinical trial (VITADEX study) | RBR-7d6qr5f |
| Vitamin D Supplementation and Glycemic Control Improvement Among Type 1 Diabetic Children | The Effects of Vitamin D Supplementation on Glycemic Control in Children With Type 1 Diabetes Mellitus in Gaza Strip, A Randomized Controlled Trial | NCT05141968 |
| Role of Vitamin D in Anemia in Indian population | Anemia: Exploring the role of vitamin D, essential elements and lifestyle in Indian population | CTRI/2023/04/051405 |
| Improvement of outcome and reduction of toxicity in elderly patients withCD20+ aggressive B-cell lymphoma by an optimised schedule of themonoclonal antibody rituximab, substitution of conventional by anothervincristine and FDG-PET based reduction of therapy in combination withvitamin D substitution | Improvement of outcome and reduction of toxicity in elderly patients with CD20+ aggressive B-cell lymphoma by an optimised schedule of the monoclonal antibody rituximab, substitution of conventional by liposomal vincristine and FDG-PET based reduction of therapy in combination with vitamin D substitution - OPTIMAL>60/DR.CHOP | EUCTR2010-019587-36-DE |
| Effects of exercise training and vitamin D supplementation on Migraine | Effects of 8 weeks of aerobic exercise and vitamin D supplementation on serum levels of brain-derived neurotrophic factor, quality of life, and some cognitive and psychological indices in Migraine patients | IRCT20210617051606N3 |
| Glycemic Index Evaluation of a Hypercaloric/High-protein Nutritional Supplement in Healthy Adults | Clinical Trial to Evaluate Hypercaloric/High-protein Nutritional Supplement Glycemic Index Enriched With Calcium, Vitamin D and Docosahexaenoic Acid (DHA) in Healthy Adults | NCT05335863 |
| The effects of vitamin D supplementation in women with hypothyroidism | Effect of vitamin D supplementation on metabolic status, thyroid hormones, serum irisin and obesity indices in women with subclinical hypothyroidism | IRCT20100408003664N25 |
| The Efficacy of Vitamin D Supplementation in Patients With Severe and Extremely Severe COVID-19 | The Efficacy of Vitamin D Supplementation in Patients With Severe and Extremely Severe COVID-19 | NCT05092698 |
| Evaluation of the effect of vitamin D before percutaneous coronary intervention in the prevention of cardiovascular complications | Evaluation of the effect of loading dose of vitamin D before percutaneous coronary intervention in patients with unstable angina in reducing Major adverse cardiovascular events | IRCT20210228050528N1 |
| Vitamin D status in undernourished children | Vitamin D status in relation to systemic and intestinal inflammation in undernourished children, 6-59 months old | PACTR202110646172601 |
| Verification of changes in urinary vitamin D metabolites and beta-carotene due to vitamin D and beta-carotene supplementation in healthy subjects - Open-label study- | Verification of changes in urinary vitamin D metabolites and beta-carotene due to vitamin D and beta-carotene supplementation in healthy subjects - Open-label study- - Verification of changes in urinary vitamin D metabolites and beta-carotene due to vitamin D and beta-carotene supplementation in healthy subjects - Open-label study- | JPRN-UMIN000045653 |
| Vitamin D and Progesterone for Acute Spinal Cord Injury | Effects of Synchronic Administration of Vitamin D and Progesterone on Outcome of Patients with Acute Spinal Cord Injury; A Randomized, Double Blind, Placebo Controlled Study | IRCT201310082445N2 |
| Neo-adjuvant Progesterone and Vitamin D3 in Breast cancer | Randomized Controlled Trial of Neo-adjuvant Progesterone and Vitamin D3 in women with LOBC and LABC - Feasibility Study | CTRI/2013/06/003788 |
| Utilizing the Crosstalk Among Chicoric Acid, 13-Cis Retinoic Acid(Aerosolized), Minocycline and Vitamin D as a Potent Quadrate Therapy for Treating Patients With Multidrug-resistant TB and Patient With Both Multidrug-resistant TB and COVID-19 | Utilizing the Crosstalk Among Chicoric Acid, 13-Cis Retinoic Acid(Aerosolized), Minocycline and Vitamin D as a Potent Quadrate Therapy for Treating Patients With Multidrug-resistant TB and Patient With Both Multidrug-resistant TB and COVID-19 | NCT05077813 |
| Role of high dose vitamin D3 on anemia in mechanically ventilated patients with sepsis | Effect of high dose vitamin D3 on hemoglobin concentrations of mechanically ventilated patients with sepsis: A placebo-controlled randomized controlled trial | CTRI/2022/05/042836 |
| STUDY AMONG EXPECTANT MOTHERS TO EVALUATE THE VITAMIN D LEVELS AND OBSERVE CARIES PATTERN IN INFANTS. | ROLE OF MATERNAL BLOOD MINERAL, VITAMINS LEVELS IN THE OCCURRENCE OF EARLY CHILDHOOD CARIES AMONG INFANTS (1 to 2 YEARS). | CTRI/2021/10/037169 |
| Evaluation of the effect of vitamin D supplementation in reducing vertigo attacks and severity in Meniere’s patients, A Randomized Double-Blind Clinical Trial with Placebo-Controlled | Evaluation of the effect of vitamin D supplementation in reducing vertigo attacks and severity in Meniere’s patients, A Randomized Double-Blind Clinical Trial with Placebo-Controlled | IRCT20210716051908N1 |
| Randomized Controlled Trial of Neo-adjuvant Progesterone and Vitamin D3 in Women With Large Operable Breast Cancer and Locally Advanced Breast Cancer | Randomized Controlled Trial of Neo-adjuvant Progesterone and Vitamin D3 in Women With Large Operable Breast Cancer and Locally Advanced Breast Cancer. | NCT01608451 |
| Vitamin D and bone health in persons with intellectual disability | Vitamin D and bone health in persons with intellectual disability | ACTRN12605000243617 |
| Effect of exercise, vitamin D supplementation on serum levels of alkaline phosphatase and reactive protein(crp) | The effect of 8 weeks of combined exercises with and without blood flow restriction and vitamin D intake on serum levels of alkaline phosphatase and C reactive exercise (crp) and muscle quality of elderly women. | IRCT20221120056548N5 |
| Feasibility Study of 2000 IU Per Day of Vitamin D for the Primary Prevention of Type 1 Diabetes | Pilot Trial of Vitamin D for the Prevention of Type 1 Diabetes | NCT00141986 |
| PREDIN: Pregnancy and Vitamin D Intervention Study | PREDIN: Pregnancy and Vitamin D Intervention Study - A Randomized Controlled Trial | NCT05329428 |
| Vitamin D deficiency among non western immigrants: treatment with vitamin D supplementation or sunlight? | Vitamin D deficiency among non western immigrants: treatment with vitamin D supplementation or sunlight? | NL-OMON26009 |
| The effect of vitamin D supplementation dose and time on the efficacy of vitamin D deficiency CTS patients | The effect of vitamin D supplementation dose and time on the efficacy of vitamin D deficiency CTS patients | ChiCTR2300068947 |
| Calcium and Vitamin D vs Markers of Adenomatous Polyps | Calcium, Vitamin D, and Colon Cancer Risk Biomarkers | NCT00208793 |
| Vitamin D/Calcium Polyp Prevention Study | Vitamin D/Calcium Polyp Prevention Study | NCT00153816 |
| Effect of vitamin D supplementation on the functional efficiency of patients after stroke | The effect of vitamin D Supplementation on the fUnctional efficiency of Patients after ischemic strOke undergoing neurological Rehabilitation - a prospective, randomized Trial with a control group (D-SUPORT) | ISRCTN11086312 |
| The effect and epigenetic mechanism of combining Baduanjin training and vitamin D supplementation on frail older adults | The effect and epigenetic mechanism of combining Baduanjin training and vitamin D supplementation on frail older adults | ChiCTR2300069201 |
| Investigating the effect of cognitive rehabilitation, Transcranial Alternating Current Stimulation, comibination of and cognitive rehabilitation and Transcranial Alternating Current Stimulation, and the effect of vitamin D on cognitive and executive functions. | Comparison of cognitive rehabilitation, Transcranial Alternating Current Stimulation (tACS)? combination of cognitive rehabilitation and Transcranial Alternating Current Stimulation ,and the effect of vitamin D on cognitive and executive functions of patients with mild cognitive impairment (MCI). | IRCT20230125057214N1 |
| Comparison of pain after abdominal surgery in patients receiving Nasocalcin spray or vitamin D and Nasocalcin spray | Comparison of pain after abdominal surgery in patients receiving Nasocalcin spray or vitamin D and Nasocalcin spray | IRCT20230110057093N1 |
| Vitamin D in knee osteoarthritis | Comparing the effectiveness of platelet-enriched plasma along with vitamin D and platelet-enriched plasma without vitamin D in improving function and reducing pain in knee osteoarthritis patients | IRCT20230224057514N1 |
| To see the effects of vitamin D in addition to anti-tubercular treatment on inter-leukin 6 levels in patients having pulmonary tuberculosis | Effects of Vitamin D supplementation on IL-6 levels in patients of Pulmonary Tuberculosis | CTRI/2022/02/040458 |
| The effect of single oral dose vitamin D on left ventricular remodelling in patients with acute anterior left ventricular infarction referred to Shahid Rajaei Hospital and comparison with randomized clinical trial control group IRCT | The effect of single oral dose vitamin D on left ventricular remodelling in patients with acute anterior left ventricular infarction referred to Shahid Rajaei Hospital and comparison with randomized clinical trial control group IRCTcular | IRCT20211117053087N1 |
| International ALLIANCE Study of Therapies to prevent progression of COVID-19, a randomized trial - Stage 2 | Therapies to prevent progression of COVID-19, including Quercetin, Zinc, high dose Vitamin D with or without Intravenous Vitamin C, a multi-centre, international, randomized trial: The International ALLIANCE Study - Stage 2 | ACTRN12622000309785 |
| A study to evaluate the efficacy and safety of Magnesium and Vitamin D supplement as an additional therapy to anti diabetic drugs in Type 2 Diabetic Patients. | A Randomized, Multicenter, Double Blind, Placebo Controlled prospective study to evaluate the Efficacy and Safety of Magnesium and Vitamin D Supplement as an add on therapy to Oral Hypoglycemic agents (OHA) in Type 2 Diabetic Patients. | CTRI/2023/03/050877 |
| The effect of high-intensity interval training (HIIT) and vitamin D supplementation on older men | The effect of 8 weeks of high-intensity interval training (HIIT) with and without vitamin D supplementation on some muscle atrophy indexes in older men | IRCT20190917044797N2 |
| Differences between sun exposure and vitamin D supplementation on blood pressure of pregnant women and size of newborn babies | Differences in the effect of sun exposure and vitamin D supplementation on blood pressure of pregnant women and anthropometric status of newborn babies | ISRCTN87262826 |
| Outcome of High Dose Vitamin D on Prognosis of Sepsis Requiring Mechanical Ventilation | Outcome of High Dose Vitamin D on Prognosis of Sepsis Requiring Mechanical Ventilation; A Randomized Controlled Trial | NCT05244018 |
| Plan D- Vitamin D Supplementation in Psychotic Disorders | Plan D- a Randomized Controlled Trial of Vitamin D Supplementation in Psychotic Disorders Including the Use of Digital Measures | NCT05211635 |
| Vitamin D supplements during pregnancy | Oral Vitamin D supplementation as a safe, affordable treatment for profound vitamin D deficiency inpregnancy | CTRI/2022/01/039091 |
| Efficacy of vitamin D in the adjuvant treatment of attention deficit hyperactivity disorder in children | Efficacy of vitamin D in the adjuvant treatment of attention deficit hyperactivity disorder in children | ChiCTR2200055133 |
| A Study of Oyster mushrooms and Oyster mushrooms fortified with Indian gooseberry in Vitamin D deficiency | A COMPARATIVE PHARMACOGNOSTIC, PHYTOCHEMICAL AND CLINICAL EVALUATION OF PLEUROTUS FLORIDA AND AMALAKI SIDDHA PLEUROTUS IN VIT D DEFICIENCY | CTRI/2021/09/037009 |
| ?The effect of vitamin D in the treatment of vitamin D deficiency | Assessment of optimal vitamin D dose for treatment of hypovitaminosis D in pregnant women | IRCT20211101052937N1 |
| The Sun-D Trial: the effect of high SPF sunscreen application on vitamin D | The Sun-D Trial: the effect of high SPF sunscreen application on vitamin D in Australian adults | ACTRN12621001752853 |
| Vitamin D as a Prognostic Marker on Assisted Reproductive Technologies Outcomes. | Vitamin D as a Prognostic Marker on Assisted Reproductive Technologies Outcomes. | NCT05091203 |
| The effect of vitamin D on recurrence of chronic rhinosinusitis associated with nasal polyposis | Evaluation of the effect of vitamin D on recurrence of chronic rhinosinusitis associated with nasal polyposis after functional endoscopic sinus surgery (Triple blind, Placebo-controlled randomized clinical trial) | IRCT20211026052878N1 |
| Severity of COVID-19 and Vitamin D Supplementation | The Effect of Vitamin D Supplementation in Standard Therapy on Reducing Severity of COVID-19 Among Hospitalized Patients | NCT05166005 |
| Effects of vitamin D supplementation on risks of delayed relapse or death in patients with cancer and especially in a subgroup of patients with p53-positive cancer | Effects of vitamin D supplementation on risks of delayed relapse or death in patients with cancer and especially in a subgroup of patients with p53-positive cancer: A double-blind, randomized, placebo-controlled, clinical trial - AMATERASU2 Trial | JPRN-jRCTs031210460 |
| Protective Role of Vitamin D in Breast Cancer Patients Treated With Doxorubicin | The Potential Protective Effects of Vitamin (D) Against Doxorubicin Induced Cardiotoxicity in Breast Cancer Patients | NCT04166253 |
| Effects of Vitamin D3 in Patients of Chronic Kidney Disease with Vitamin D Deficiency and Secondary Hyperparathyroidism | Safety and Efficacy of Cholecalciferol Supplementation in Patients of Chronic Kidney Disease (CKD) with Vitamin D Deficiency and Secondary Hyperparathyroidism (SHPT) - NIL | CTRI/2024/11/076859 |
| The effect of aerobic exercise and vitamin D supplementation on inflammation in men with type 2 diabetes | Interactional and separate effects of aerobic training and vitamin D supplementation on genes expression of inflammation and oxidative stress in men with type 2 diabetes | IRCT20210811052151N1 |
| Effect of Astaxanthin Phytochemical, Vitamin D3, Omega-3 and Vitamin E supplement on severity of mild to moderate COVID-19 Symptoms | Assessing the effect of Astaxanthin Phytochemical, Vitamin D3, Omega-3 and Vitamin E ?upplement on the severity of COVID-19 Symptoms of Patients with mild to Moderate Severity- a randomized double blind controlled Clinical Trial | IRCT20140804018677N9 |
| Maternal vItamin D osteoporosis study | A randomised double-blind placebo-controlled trial of vitamin D supplements for pregnant women with low levels of vitamin D in early pregnancy | ISRCTN82927713 |
| Prevalence of Vitamin D Deficiency in Pregnant Women and Their Fetus in North Jordan | Prevalence of Vitamin D Deficiency in Pregnant Women and Their Newborns and Their Association With Maternal and Newborns Characteristics | NCT04944212 |
| Vitamin D supplementation in the prevention of Neonatal Bronchopulmonary Dysplasia: is it beneficial? | Vitamin D supplementation in the prevention of Neonatal Bronchopulmonary Dysplasia: is it beneficial? | TCTR20210622001 |
| Effect of vitamin D3 in rise of hemoglobin | Correlation between high dose of vitamin D3 and rise of hemoglobin in mechanical ventilation patients in medical ICU | IRCT20200612047743N1 |
| Effect of vitamin D in respiratory distress syndrome | Evaluation of the Effectiveness of Vitamin D ?Administration in the Treatment of Preterm Neonates with Respiratory Distress Syndrome | IRCT20170307032933N4 |
| Vitamin D and Calcium Supplementation at Danish Nursing Homes | Vitamin D and Calcium Supplementation at Danish Nursing Homes - Effects on Vitamin D Status and Physical Functioning | NCT04956705 |
| Assessment of Vitamin D Level in COVID-19 | Assessment of Serum Vitamin D Level in COVID-19 Infected Patients | NCT04949412 |
| The effect of probiotics and vitamin D on diarrhea in children | Evaluation and comparison of the effect of oral vitamin D and probiotics on acute non-inflammatory diarrhea in children 6 months to 6 years | IRCT20210615051584N1 |
| Usefulness of Vitamin D in improving Brain functions in Diabetic Patients | Efficacy of Vitamin D in comparison with Donepezil in improving Cognitive function in patients with Type 2 Diabetes Mellitus â?? A Randomized Controlled Clinical Trial | CTRI/2021/07/034584 |
| Randomized Controlled Trial of Vitamin D3 Supplementation for Viral Upper Respiratory Tract Infections (URI) Prevention | A Randomized Controlled Trial of Vitamin D3 Supplementation for the Prevention of Viral Upper Respiratory Tract Infections | NCT00656929 |
| Short-term effect of vitamin D on liver enzymes and lipid profile in response to exhausting eccentric exercise | Alterations of liver enzymes and lipid profile in response to exhausting eccentric exercise after short-term vitamin D supplementation in the overweight female with non-alcoholic fatty liver | IRCT20201130049538N1 |
| Safety Trial of High Dose Oral Vitamin D3 With Calcium in Multiple Sclerosis | A Phase I/II Dose-Escalation Trial of Vitamin D3 With Calcium Supplementation in Patients With Multiple Sclerosis | NCT00644904 |
| Comparing the Effect of Short-Term Use of Vitamin D with Vitamin D Plus Calcium Supplement in Treatment of Patients with Periodontitis Referred to Qom Dental School from 2021 to 2022 | Comparing the Effect of Short-Term Use of Vitamin D with Vitamin D Plus Calcium Supplement in Treatment of Patients with Periodontitis Referred to Qom Dental School from 2021 to 2022 | IRCT20210510051255N1 |
| Does Vitamin D3 intake help in reducing the Depression scores among rural adolescents girls and boys? A randomized control trial | Does Vitamin D3 supplementation improve the Depression scores among rural adolescents? A randomized control trial | CTRI/2021/07/034654 |
| A prospective, double-blind, parallel assignment, randomised controlled study to evaluate the effectiveness and safety of high dose Vitamin D supplementation in patients with symptomatic mild to moderate illness of SARS CoV-2 infection and effects and associations of low vitamin D levels in this group | A prospective, double-blind, parallel assignment, randomised controlled study to evaluate the effectiveness and safety of high dose Vitamin D supplementation and effects and associations of low vitamin D levels in patients with symptomatic SARS CoV-2 infection | SLCTR/2021/019 |
| A randomized controlled trial of vitamin D in the treatment of metabolic status in women with polycystic ovary syndrome | A randomized controlled trial of vitamin D in the treatment of metabolic status in women with polycystic ovary syndrome | ChiCTR2100048736 |
| Clinical, anti-inflammatory and antioxidant effects of fish oil and vitamin D supplementation in sickle cell disease patients: a randomized, blinded, placebo-controlled study | Omega-3 and vitamin D supplementation in adults with sickle cell anemia - OVIDA Omega-3 and vitamin D supplementation for sickle cell anemia | RBR-10r7d6f3 |
| Nutrition, Immunity, and Covid-19 in Obese People | Effect of Probiotic and Vitamin D Supplementation in Modulating Gut Dysbiosis, Nutrition, Inflammation and Immune Status and Reduce Risk of COVID-19 in Obese People: Gut-Lung Axis Randomized Trial | NCT04979065 |
| How does Vitamin D help in anaemic patients suffering from ulcerative colitis | Role of Vitamin D as an add on therapy in ulcerative colitis patients with anaemia | CTRI/2021/07/035128 |
| Effects of vitamin D2 supplementation on semen quality in vitamin D-insufficient infertile men: a randomized controlled trial | Effects of vitamin D2 supplementation on semen quality in vitamin D-insufficient infertile men: a randomized controlled trial | TCTR20210804004 |
| An investigation of the dietary requirements for vitamin D | Dietary requirements for vitamin D: an investigation of the relative significance of dietary intake and sunlight on vitamin D status in young and elderly adults | ISRCTN20236112 |
| A PHASE III CLINICAL TRIAL, RANDOMIZED, CONTROLLED WITH PLACEBO, TO EVALUATE THE SAFETY AND EFFICACY OF ODANACATIB (MK-0822) TO REDUCE THE RISK OF FRACTURES IN POST-MENOPAUS WOMEN WITH OSTEOPOROSIS TREATED WITH VITAMIN D AND CALCIUM | A PHASE III CLINICAL TRIAL, RANDOMIZED, CONTROLLED WITH PLACEBO, TO EVALUATE THE SAFETY AND EFFICACY OF ODANACATIB (MK-0822) TO REDUCE THE RISK OF FRACTURES IN POST-MENOPAUS WOMEN WITH OSTEOPOROSIS TREATED WITH VITAMIN D AND CALCIUM | PER-119-07 |
| The Effect of Vitamin D Repletion on Insulin Resistance | The Effect of Vitamin D Repletion on Insulin Resistance | NCT00606957 |
| APPLICATION OF VITAMIN D TO REDUCE TO BONE LOSS AROUND IMPLANTS | EFFICACY OF TOPICAL VITAMIN D GEL ON PERI-IMPLANT BONE LEVELS | CTRI/2021/08/035407 |
| The effect of vitamin D in improving carpal tunnel syndrome after surgery | Evaluation of the effect of different doses of vitamin D on the prognosis of patients after carpal tunnel syndrome syndrome | IRCT20180313039085N2 |
| Effects of Electrical Stimulation and Vitamin D Supplementation on Bone Health Following Spinal Cord Injury. | Effects of Electrical Stimulation and Vitamin D Supplementation on Bone Health Following Spinal Cord Injury | NCT05008484 |
| Absorption Kinetics and Efficacy of Vitamin D Enriched Supplements in Older Adults. | Absorption Kinetics and Efficacy of Vitamin D Enriched Supplements in Older Adults. | NCT04935034 |
| The Relationship Between Vitamin D Levels, Inflammatory Parameters and Disease Severity of COVID-19 Infection | The Relationship Between Vitamin D Levels, Inflammatory Parameters and Disease Severity of COVID-19 Infection: A Retrospective Study | NCT04945577 |
| Efficacy of Vitamin D Supplementation and Physical Activity in Improving Musculoskeletal Health in Individuals with Chronic Kidney Disease | Efficacy of Vitamin D Supplementation and Physical Activity in Improving Musculoskeletal Health in Individuals with Chronic Kidney Disease | ChiCTR2100045116 |
| To compare efficacy of treatment by intralesional bleomycin and intralesional vitamin D-3 in common warts. | Comparative therapeutic efficacy of intralesional bleomycin and intralesional vitamin D-3 in verruca vulgaris. | CTRI/2021/04/032610 |
| Effect of high dose vitamin D in patients with ischemic stroke | Effect of high dose vitamin D on serum Neuron Specific Enolase (NSE) level as a marker of neuronal damage in patients with ischemic stroke | IRCT20120703010178N24 |
| Vitamin D and Pre Cachexia and Cancer Cachexia in Epithelial Ovarian Cancer | The Effect of Vitamin D on Factors Contributing Pre Cachexia and Cachexia, a Study on Epithelial Ovarian Cancer | NCT04864431 |
| The effect of vitamin D supplementation in patients with systemic lupus erythematosus | Vitamin D supplementation in systemic lupus erythematosus: relationship to disease activity, fatigue and the interferon signature gene expression | ISRCTN59058825 |
| Effect of Vitamin D supplementation in Rheumatoid Arthritis | Effect of Vitamin D supplementation in Rheumatoid Arthritis | CTRI/2021/04/033032 |
| role of vitamin D and zinc in the treatment of severe pneumonia in children age between 2 months to 5 years | role of vitamin D and zinc in the treatment of severe pneumonia in children age between 2 months to 5 years | CTRI/2021/04/033062 |
| Effect of Vitamin D Replacement in Older People with Vitamin D Deficiency on Musculoskeletal Health, Metabolic Factors, Reproductive Hormone and Quality of life | Effect of Vitamin D Replacement in Older People with Vitamin D Deficiency on Musculoskeletal Health, Metabolic Factors, Reproductive Hormone and Quality of life | TCTR20210428006 |
| Oral Vitamin D Supplementation Combined With Phototherapy as a Treatment for Vitiligo | Combined Therapy With NB-UVB Phototherapy and Oral Vitamin D Supplementation in Patients With Vitiligo: a Randomized-clinical Trial, Triple-blind, Placebo-controlled | NCT04872257 |
| The effect of short-term vitamin D supplementation on the antioxidant capacity and muscle damage indicators responses to exhausting aerobic activity in non-athletic men | Alterations of short-term vitamin D supplementation on the antioxidant capacity and muscle damage indicators responses to exhausting aerobic activity in non-athletic men | IRCT20210414050965N1 |
| Vitamin D and Serum Calcium Level Insufficiency and Early Dental Implant Failure | Correlation Between Vitamin D and Serum Calcium Level Insufficiency and Early Dental Implant Failure | NCT04906161 |
| Can an app support a healthy vitamin D level in healthy volunteers? | Can an app support a healthy vitamin D level in healthy volunteers? The Sun4Health-Vitamin D randomized controlled trial | ISRCTN30217197 |
| Investigation of clinical effect of vitamin D supplement therapy for pancreatic cancer | Investigation of clinical effect of vitamin D supplement therapy for pancreatic cancer | JPRN-jRCTs051210021 |
| Vitamin D Supplementation on Outcome and Disease Activity. | Vitamin D Supplementation on Outcome and Disease Activity in Rheumatoid Arthritis Patients At Rajavithi Hospital : a Randomized Clinical Trial | NCT04909931 |
| Retinal Changes in Vitamin D Deficiency | Evaluation of Retinal Structure in Pediatric Subjects With Vitamin D Deficiency | NCT04891211 |
| The effect of aerobic training at home and vitamin D supplementation in MS During Covid-19 quarantine | The effect of an 8-week aerobic training at home and vitamin D supplementation on serum values of Brain-derived neurotrophic factor (BDNF), Nerve growth factor (NGF), fatigue level and quality of life in patients with Multiple Sclerosis During Covid-19 quarantine | IRCT20201129049525N1 |
| Combined intervention of omega-3 fatty acids and vitamin D in patients with Hashimoto's thyroiditis. | A randomized controlled trial of combined intervention of Omega-3 fatty acids and vitamin D in patients with Hashimoto's thyroiditis | ChiCTR2100046558 |
| Effect of vitamin D on the prognosis of patients with COVID-19 | Investigating the status of vitamin D and its complementary effect on the prognosis of patients with COVID-19 bedridden in Hospital | IRCT20210327050775N1 |
| Reference Interval of Vitamin D of Coastal Fishermen in Cox's Bazar District of Bangladesh | The Level of Serum Vitamin D And Parathyroid Hormone Among Different Bangladeshi Population Groups | NCT04986319 |
| To study the effect of single bolus dose of Vitamin D supplementation given to lactating mothers on Vitamin D status in their breastfeeding infants at 30 days. | A Randomised Comparative Trial of two different bolus doses of Vitamin D given to lactating mother on serum Vitamin D levels of their infants. | CTRI/2021/05/033888 |
| Vitamin D Supplementation in Intensive Care Unit Patients | Effect of a Single Mega-dose of Vitamin D3 Supplementation on Clinical Course in Non-deficient Patients Admitted in Intensive Care Unit | NCT04915963 |
| The effect of wheat germ oil on vitamin D levels and changes in liver enzymes in children | The effect of wheat germ oil on vitamin D levels and changes in liver enzymes in children 2 to 12 years old treated with phenobarbital and sodium valproate referred to Imam Ali Clinic in Shahrekord | IRCT20210319050742N1 |
| A trial to assess the effectiveness of Therapeutic Nursing Interventions and Vitamin D3 Supplementation on Blood Glucose and Quality of Life among Geriatric Patients with Type II Diabetes Mellitus - A Randomized Controlled Trial. | A Randomized Controlled single blinded clinical Trial to asess Therapeutic Nursing Interventions and Vitamin D3 Supplementation on Blood Glucose and Quality of Life among Geriatric Patients with Type II Diabetes Mellitus. - TNIVDS | CTRI/2024/02/063255 |
| Effects of Vitamin D3 and Prebiotics Supplementation on Cardiovascular Risk Factors in Patients With Type 2 Diabetes | Effects of Vitamin D3 and Prebiotics Supplementation on Cardiovascular Risk Factors in Patients With Type 2 Diabetes: A Randomized Double-Blind Controlled Trial | NCT06351566 |
| Optimization of Blood Levels of 25(OH)-Vitamin D in African Americans | Optimization of Blood Levels of 25(OH)-Vitamin D in African Americans | NCT04939792 |
| The effect of curcumin and vitamin D s on headache symptoms and inflammation in patients with migraine | The effect of concurrent curcumin and vitamin D supplementation on headache symptoms and calcitonin gene-related peptide level (CGRP) in patients with migraine | IRCT20170929036477N4 |
| Vitamin D Inadequacy in Rural Populations, Evaluation of Correction by Food Supplementation | Vitamin D Inadequacy: Documentation in Rural Populations and Evaluation of Correction by Food Supplementation (Phase III; Manitowoc Prevalence Study) | NCT00690417 |
| Vitamin D in Armenia: Vitamin D Repletion Strategies With Dibase, and Vitamin D and Vitamin D Binding Protein and COVID | Vitamin D in Armenia: Phase 2 - Vitamin D Repletion Strategies With Dibase, and Vitamin D and Vitamin D Binding Protein and COVID | NCT06406543 |
| Vitamin D3 as local drug delivery therapy for gum disease | Evaluation of Clinical Efficacy of Locally Delivered Vitamin D3 Gel as an Adjunct to Nonsurgical Periodontal Therapy in the Treatment of Periodontitis - NIL | CTRI/2024/06/068312 |
| Which is better treatment option for when we give vitamin D3 with methyl prednisolone injection OR when we give methyl prednisolone alone in patients with nerve compression of wrist | Evaluation of efficacy and safety of oral vitamin-D3 as an add on therapy to intracarpal injection of methyl prednisolone in the management of carpal tunnel syndrome: An open labelled prospective study - nil | CTRI/2024/06/069099 |
| A study to find out vitamin D effect on hormones cortisol, estrogen and testosterone and its impact on primary open angle glaucoma | Effect of vitamin D supplementation on serum levels of cortisol, estrogen and testosterone in patients of primary open angle glaucoma - NIL | CTRI/2024/06/069692 |
| DAILY: Vitamin D, Aspirin, ExercIse, Low Saturated Fat Foods StudY in Colorectal Cancer Patients With Minimal Residual Disease | DAILY: Vitamin D, Aspirin, ExercIse, Low Saturated Fat Foods StudY in Colorectal Cancer Patients With Minimal Residual Disease | NCT05036109 |
| COVID-19 Morbidity in Healthcare Workers and Vitamin D Supplementation | The Effect of Vitamin D Supplementation in Reducing COVID-19 Morbidity Among Healthcare Workers | NCT05037253 |
| Comparing the Effectiveness of Triamcinolone Acetonide and Vitamin D3 Injections in Treating Spot baldness | A Comparative Study To Evaluate The Efficacy Of Intralesional Injections Of Triamcinolone Acetonide Versus Vitamin D3 In The Treatment Of Alopecia Areata - NIL | CTRI/2024/07/070467 |
| Efficacy and Safety of Vitamin D Supplementation Combined with Alarm Therapy in Treating Nocturnal Enuresis | Efficacy and Safety of Vitamin D Supplementation Combined with Alarm Therapy in Treating Nocturnal Enuresis: a Prospective, Randomized Controlled Trial | NCT06508333 |
| The Efficacy and Safety of Topical Vitamin D and Supplementation In Acne Vulgaris The Study of VDR, IL-1ß, IL-6, IL-10 and IL-17 Expression | The Efficacy and Safety of Topical Vitamin D and Supplementation In Acne Vulgaris The Study of VDR, IL-1ß, IL-6, IL-10 and IL-17 Expression | NCT05758259 |
| Vitamin D Supplementation in Older Women | Determination of RDA for Vitamin D in Caucasian and African American Women | NCT00472823 |
| The Effect of ß-Carotene, Vitamin D3 and Zinc on Hyaline Membrane Disease and Feeding Intolerance in Premature Neonates | The Effect of Co-administered ß-Carotene, Vitamin D3, Zinc and Antenatal Steroid Therapy on Hyaline Membrane Disease and Feeding Intolerance in Premature Neonates | NCT03366584 |
| Vitamin D Versus Sildenafil Citrate in Fetal Growth Restriction | Comparative Study of the Role of Vitamin D Supplementation, Versus Sildenafil Citrate in Patients Diagnosed With Fetal Growth Restriction, Randomized Control Trial | NCT06565728 |
| Assessment the Efficacy of Vitamin D Mouth Rinse Versus Placebo in the Treatment of MIH | Assessment the Efficacy of Vitamin D Mouth Rinse Versus Placebo in the Treatment of Molar Incisor Hypomineralization. A Randomized Double-Blind Placebo Controlled Clinical Trial | NCT06515548 |
| Comparison Between Effect of Vitamin D Versus Dexmedetomidine in Patients with Head Trauma Using Interleukin 6 | Comparison Between the Neuroprotective Effect of Vitamin D Versus Dexmedetomidine in Patients with Traumatic Brain Injury Using Interleukin 6 As Inflammatory Marker | NCT06565338 |
| Effects of vitamin D and magnesium co-supplementation in patients with type 2 diabetes | Effects of vitamin D and magnesium co-supplementation on cognitive function and C-reactive protein level in patients with type 2 diabetes: A double-blind randomized placebo-control trial | IRCT20090901002394N50 |
| Vitamin D Replacement in Bronchiectasis | Prospective Clinical Study on Vitamin D Replacement in Bronchiectasis - A Pilot Study | NCT06551337 |
| Beneficial Effects of Vitamin D Combined With Oral Iron Supplementation in Patients With Chronic Heart Failure and Iron Deficiency | Beneficial Effects of Vitamin D Combined With Oral Iron Supplementation in Patients With Chronic Heart Failure and Iron Deficiency | NCT05702970 |
| Effects of Vitamin D and Prebiotic Supplementation on Glucose Control During Pregnancy | Effects of Vitamin D and Prebiotic Supplementation on Glucose Control During Pregnancy: a Randomized, Double-Blind, Placebo-Controlled Clinical Trial | NCT06553729 |
| Comparative evaluation of implant longevity among two groups in low vitamin D3 Patients | Comparative evaluation of implant stability in low vitamin D3 patients with and without vitamin D3 supplementation A randomized controlled trial - NIL | CTRI/2024/09/074422 |
| Vitamin D supplementation and improvement of insomnia symptoms among vitamin D deficient Malaysian women | Vitamin D supplementation and improvement of insomnia symptoms among vitamin D deficient Malaysian women: a double-blind randomised controlled trial | ISRCTN69678101 |
| Vitamin D Supplementation Effect In Children With Pulmonary Tuberculosis Treatment | Vitamin D Supplementation Effect In Children With Pulmonary Tuberculosis Treatment: Randomized Double Blind Controlled Trial | NCT05073965 |
| Vitamin D and SGLT-2 Inhibitor in CPAP-naive Obstructive Sleep Apnea | Exploring the Synergistic Effect of Vitamin D and SGLT-2 Inhibitor on Cardio-metabolic Markers and the Renin Angiotensin Aldosterone System in CPAP-naive Obstructive Sleep Apnea Population | NCT06690723 |
| The Effect of Zinc, ß-carotene, and Vitamin D3 in Preterm Delivery Through Placental MyD88, TRIF, NFkB, and IL-1ß | The Effect of Zinc, Beta-carotene, and Vitamin D3 Supplementation as Pro-inflammation Mediated Regulator in Preterm Delivery Through Placental Protein Adaptor MyD88 and TRIF, Transcription Factor NFkB, and Pro-inflammatory Cytokine IL-1ß | NCT03005496 |
| Vitamin D Level and Pain Type in Coccygodynia | Effect of Vitamin D Level on Pain Type in Coccygodynia | NCT05047393 |
| effect of vitamin D on the treatment of prostatitis | The effect of vitamin D supplementation on clinical symptoms and serum levels of some inflammatory factors in men with chronic nonbacterial prostatitis | IRCT20210717051914N1 |
| Zurich Multiple Endpoint Vitamin D Trial in Knee OA Patients | Role of Vitamin D in Secondary Prevention of Knee Osteoarthritis: A Double-blind Randomized Controlled Trial | NCT00599807 |
| High Dosage Vitamin D and Osteoporosis | High Dosage Vitamin D in the Treatment of Osteoporosis in Postmenopausal Women | NCT00491920 |
| Vitamin D in School Children | The D-VinCHI Study: 25-hydroxyvitamin D Concentration in School Children: Effects of Vitamin D3 Supplementation on 25-OH-D Concentration and Muscle Health Outcomes | NCT05018988 |
| Comparison of two vitamin D supplementation regimens in preterm infants with gestational age less than 32 weeks or very low birth weight preterm infants in Northern Thailand: A Randomized Controlled Trial | Improving Vitamin D Status in Preterm Newborns: A Randomized Trial of 800 vs. 400 IU/day | TCTR20240322002 |
| Effect on bone turnover and Bone Mineral Density (BMD) of low dose oral silicon as an adjunct to calcium/vitamin D3 in a randomised, placebo-controlled trial | Effect on bone turnover and Bone Mineral Density (BMD) of low dose oral silicon as an adjunct to calcium/vitamin D3 in a randomised, placebo-controlled trial | ISRCTN57103074 |
| Clinical Approaches to Correcting Vitamin D Inadequacy and Maintaining Adequacy | Clinical Approaches to Correcting Vitamin D Inadequacy and Maintaining Adequacy | NCT00692120 |
| Controlled Trial of Prenatal Vitamin D3 Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants | High Prevalence of Rickets and Subclinical Maternal and Childhood Vitamin D Deficiency in the Middle East: a Randomized Controlled Trial of Prenatal Vitamin D Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants | NCT00610688 |
| To study the gender-wise difference in Vit B12 and Vit D deficiency, Gender wise categorization of clinical symptoms and reversal of symptoms with appropriate supplementation with vitamin B12 or vitamin D pills | â?? Vitamin B12 and Vitamin D deficiency gender-wise categorization of clinical symptoms and reversal of symptoms with appropriate supplementation-A RCT. | CTRI/2021/06/034312 |
| Clinical Effects of Vitamin D Repletion in Patients With Parkinson's Disease | Clinical Effects of Vitamin D Repletion in Patients With Parkinson's Disease | NCT00571285 |
| Vitamin D therapy to reduce cardiovascular risk in type two diabetes - the next steps | The effect of different doses of vitamin D(3) on markers of vascular health in patients with type 2 diabetes: a randomised controlled trial | ISRCTN50587697 |
| Evaluation of Vitamin D Status in Children With Acute Burns | Vitamin D Deficiency in Acutely Injured Pediatric Burn Patients: Incidence, Etiology, Metabolic Sequelae and Prevention | NCT00536276 |
| Role of Vitamin D in children with Attention Deficit Hyperactivity Disorder | Effect of Vitamin D supplementation on behavioural and executive functions of children with Attention Deficit Hyperactivity Disorder | CTRI/2023/01/048799 |
| A Study of MK-0822 in Postmenopausal Women With Osteoporosis to Assess Fracture Risk (MK-0822-018) | A Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of Odanacatib (MK-0822) to Reduce the Risk of Fracture in Osteoporotic Postmenopausal Women Treated With Vitamin D and Calcium | NCT00529373 |
| A Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of MK-0822to Reduce the Risk of Fracture in Osteoporotic Postmenopausal Women Treated With Vitamin D andCalcium | A Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of MK-0822to Reduce the Risk of Fracture in Osteoporotic Postmenopausal Women Treated With Vitamin D andCalcium - N.A. | EUCTR2007-002693-66-LT |
| A Clinical Trial to study the effect of Vitamin D supplementation in patients with Minor Recurrent Aphthous Stomatitis having Vitamin D Deficiency | Effectiveness of oral vitamin D3 supplementation on clinical parameters and serum TNF alpha levels in subjects with minor recurrent aphthous stomatitis having hypovitaminosis D - A randomized controlled trial - NIL | CTRI/2024/04/065605 |
| Vitamin D and Valproate monotherapy: RCT | Effect of Daily Vitamin D and Calcium Supplementation on Serum Vitamin D and Calcium Levels in Children with Epilepsy Receiving Sodium Valproate Monotherapy: A Randomized Controlled Trial - ICMR Vitamin D | CTRI/2021/08/035611 |
| Effect of Vitamin D supplementation on glycemic control among Type 2 Diabeticpatients attending a tertiary care hospital | Effect of Vitamin D supplementation on glycemic control among Type 2 Diabeticpatients attending a tertiary care hospital: A Randomized Controlled Trial | CTRI/2022/10/046193 |
| Does a whole-food, vegan diet provide the body with a sufficient supply of vitamin B12 and vitamin D?A follow-up study | Does a whole-food, vegan diet provide the body with a sufficient supply of vitamin B12 and vitamin D?A follow-up study | DRKS00004994 |
| Effect of vitamin D supplement on muscle function, metabolic markers and quality of life in post I-131 hypothyroid patients | Effect of vitamin D supplement on muscle function, metabolic markers and quality of life in post I-131 hypothyroid patients : A randomized placebo-controlled trial | TCTR20230107005 |
| A study to show the effect Of Vitamin D Supplementation On Serum Methylglyoxal in Diabetic Retinopathy patients | Effect Of Vitamin D Supplementation On Serum Levels OfMethylglyoxal In Patients Of Diabetic Retinopathy - Nil | CTRI/2024/04/065762 |
| The effect of vitamin D on anxiety and depression in patients with esophageal cancer | Evaluation of the effect of vitamin D on anxiety and depression in patients with esophageal cancer | IRCT20220731055593N1 |
| DOVIPA, a phase II study evaluating efficacy and safety of DOstarlimab and oral VItamin D3 with folinic acid, 5FU, Irinotecan plus oxalipaltin (mFOLFIRINOX) in non pretreated metastatic PAncreatic Cancer. | DOVIPA, a phase II study evaluating efficacy and safety of DOstarlimab and oral VItamin D3 with folinic acid, 5FU, Irinotecan plus oxalipaltin (mFOLFIRINOX) in non pretreated metastatic PAncreatic Cancer. - 2023_0111 | CTIS2023-510004-49-00 |
| The effect of vitamin D and magnesium supplementation on patients with COVID-19 | The effect of vitamin D and magnesium supplementation on clinical symptoms, inflammatory markers and oxidative stress in patients with COVID-19: double-blind randomized control clinical trial | IRCT20210702051763N1 |
| A Study of High-Dose Vit D Versus Standard of Care Vit D Supplementation | A Randomized, Open-label Study of High-Dose Vitamin D Versus Standard of Care Vitamin D Supplementation to Evaluate the Impact on Bone Health in Young Women With Early Stage Breast Cancer | NCT05016310 |
| Vitamin D, HbA1c and Vitamin B12 Levels in Patients | Serum Vitamin D, HbA1c and Vitamin B12 Levels in Patients With Gingivitis and Periodontitis Stages | NCT05745779 |
| The effect of high intensity interval resistance training and vitamin D intake onvitamin D th and anti inflammatory-oxidative status in overweight women | The effect of high intensity interval resistance training and vitamin D intake on the levels of Sirtuin1, Eotaxin-1 and some anti inflammatory-oxidative markers in overweight women with low vitamin D status. | IRCT20190831044650N3 |
| Vitamin D for Isolated Systolic Hypertension (VitDISH) | Can high-dose vitamin D supplementation reduce blood pressure and markers of cardiovascular risk in older people with isolated systolic hypertension? A randomised, double-blind, parallel group placebo controlled trial | ISRCTN92186858 |
| Does Vitamin D supplementation affect clinical, metabolic and hormonal profiles of patients with Polycystic Ovary Syndrome (PCOS) | Effect of two different doses of Vitamin D Supplementation on clinical, metabolic and hormonal profiles of Insulin-resistant patients with Polycystic Ovary Syndrome (PCOS):A Randomized Controlled Trial | CTRI/2019/11/021926 |
| relationship between vitamin D treatment with liver involvement severity | The relationship between vitamin D treatment and reduction of liver involvement severity in patients with non-alcoholic liver | IRCT20150802023468N6 |
| Vitamin D3 Supplementation in Critically Ill Patients Undergoing CRRT | Efficacy Comparison of Two Doses of Vitamin D3 in Critically Ill Patients Undergoing Continuous Renal Replacement Therapy | NCT05657678 |
| To study and compare effectiveness and safety of mirabegron(used for treatment of overactive bladder) and mirabegron plus vitamin D3 in adult patients o overactive bladder. | Efficacy and safety of mirabegron plus vitamin D vs mirabegron alone in the treatment of adult patients of overactive bladder: A randomized controlled trial. | CTRI/2022/12/048061 |
| Serum and Semen Vitamin D Level With Semen Parameters | Correlation of Serum and Semen Vitamin D Level With Semen Parameters in Males | NCT03477136 |
| Vitamins D and K Effects on Vascular Function in Obese Adults. | Effects of Vitamin D3 and Vitamin K2MK7 Supplementation on Vascular Function in Overweight or Obese Adults. | NCT05689632 |
| A Comparative Dissolution and Absorption Study of an Orodispersible Powder, Chewable Tablet and Soft Gel Capsule Vitamin D3 Supplementation | A Comparative Vitamin D Bioavailability Study Following Supplementation of an Orodispersible, Chewable Tablet and Soft Gelatin Capsule Vitamin D3 Supplementation in Vitamin D Deficient Healthy Adults | NCT05706259 |
| The effect of ultra-dose of vitamin D3 on critical children | Evaluation of the effect of ultra-dose of vitamin D3 as 10000 IU/Kg on clinical and laboratory results of critical children admitted to PICU | IRCT20221129056657N1 |
| Routine Calcium for Preventing Hypocalcemia | Routine Low-dose Calcium and Vitamin D Supplementation for Preventing Symptomatic Postthyroidectomy Hypocalcemia | NCT03484416 |
| Efficacy and Safety of High Dose Vitamin D Supplementation for Overactive Bladder Dry in Children | Efficacy and Safety of High Dose Vitamin D Supplementation for Overactive Bladder Dry in Children: A Randomized Clinical Trial | NCT05709990 |
| Comparisom of Liquid Nitrogen and Vitamin D3 in The Treatment of Cutaneous Warts | Comparison of Efficacy of Liquid Nitrogen Versus Vitamin D3 in The Treatment of Cutaneous Warts | NCT05739786 |
| Effect of Vitamin D in patients with excessively painful menstrual periods with low levels of Vitamin D | Efficacy and safety of Vitamin D3 on primary dysmenorrhea with Vitamin D deficiency | CTRI/2023/01/049144 |
| To study if vitamin D supplementation in vitamin D deficient patients of rheumatoid arthritis impproves vascular function in them. Vascular function predicts risk of cardiovascular diseases in them and will be measured by flow mediated dilation of brachial artery. | Impact of vitamin D supplementation on vascular function in patients with rheumatoid arthritis | CTRI/2018/03/012846 |
| Vitamin D to Slow Progression of Knee Osteoarthritis | Trial of Vitamin D to Reduce the Progression of Knee Osteoarthritis: A Double-Blind, Placebo-Controlled Once Daily Dosing Regimen | NCT00306774 |
| Effect of genetics on response to vitamin D supplementation in adults with asthma: a randomised controlled trial | Vitamin D receptor gene variations and influence on asthma control with Vitamin D3 supplementation in adults with asthma: a pilot randomised controlled trial | CTRI/2023/02/049590 |
| Pamidronate, Vitamin D, and Calcium for the Bone Disease of Kidney and Heart Transplantation | Pamidronate, Vitamin D, and Calcium for the Bone Disease of Kidney and Heart Transplantation | NCT00302627 |
| Vitamin D Deficiency Causes Immune Dysfunction and Enables or Perpetuates the Development of Rheumatoid Arthritis | Vitamin D Deficiency Causes Immune Dysfunction and Enables or Perpetuates the Development of Rheumatoid Arthritis: Clinical Trial and Investigations on Dendritic Cells | NCT00279461 |
| To find out effect and safety of drug Zoledronic acid as an add on treatment to vitamin D in patients having stress fractures in bones of both the legs. | Efficacy and safety of Zoledronic acid as an add on therapy to vitamin D3 in patients of stress fracture of lower limb | CTRI/2023/02/050079 |
| Joint effects of vitamin D supplementation and endurance training on insulin resistance in type 2 diabetes mellitus patients with vitamin D deficiency | Joint effects of vitamin D supplementation and endurance training on insulin resistance in type 2 diabetes mellitus patients with vitamin D deficiency | ChiCTR1800015383 |
| Vitamin D Levels and Vitamin D Education in Geriatric Patients | Characterization of Vitamin D Levels and Affect of Pharmacist-initiated Vitamin D Education in Geriatric Outpatients. | NCT00273611 |
| Efficacy of Vitamin D Supplementation for Children With Bronchiolitis | Efficacy of Vitamin D Supplementation for Children With Bronchiolitis at Sohag University Hospital | NCT05795933 |
| Effect of oral administration of different doses of vitamin D3 on serum 25OHD level and metabolism | Effect of oral administration of different doses of vitamin D3 on serum 25OHD level and metabolism | ChiCTR2300069387 |
| A Study to Evaluate the Effect of Vitamin D Supplementation on Insulin Sensitivity and Secretion | A Pilot Study to Evaluate the Effect of Vitamin D Supplementation on Insulin Secretion and Peripheral Insulin Sensitivity | NCT00320853 |
| Effect of topical vitamin D3 in pressure ulcer | Design and clinical assessment the effect of topical cream formulation of vitamin D3 on the healing indices of grade 1 and 2 pressure ulcer | IRCT20230317057747N1 |
| The effect of vitamin D3 supplement on pregnancy outcomes | Compare the effect of vitamin D and calcium plus vitamin D on pregnancy outcomes in pregnant women | IRCT2016121430612N2 |
| Efficacy of Plain Cholecalciferol Tablets vs. Ergocalciferol in Raising Serum Vitamin D Level in Thai Female Healthcare Workers | Efficacy of Plain Cholecalciferol Tablets vs. Ergocalciferol in Raising Serum Vitamin D Level in Thai Female Healthcare Workers | TCTR20221127002 |
| Treating Vitamin D Deficiency on Post CABG Atrial Fibrillation | Effect of Treating Vitamin D Deficiency on Postoperative Atrial Fibrillation after Coronary Artery Bypass Surgery: A Double Blinded Randomized Controlled Trial | IRCT20170620034666N1 |
| Peripheral Immunological Effects of High-dose Vitamin D Treatment in Healthy Subjects | Peripheral Immunological Effects of High-dose Vitamin D Treatment in Healthy Subjects: Randomized, Single-center, Double-blind Trial | NCT05654818 |
| Iron and vitamin D trial among elderly of India | Impact of supplementation of a package of iron folic acid (IFA) with vitamin D3 on hemoglobin levels in elderly with mild to moderate anemia: A double blind randomized controlled trial | CTRI/2022/05/042775 |
| Efficiency of Vitamin D Supplements in CLBP | Comparative Efficiency of Three Vitamin D Supplements in Addressing Vitamin D Deficiency in Adults with Low Back Pain - VIDBA | CTRI/2022/05/042870 |
| The effect of vitamin D on oral lichen planus | The evaluation of oral vitamin D on improvement of patients with oral erosiver-atrophic lichen planus: Double blind randomized clinical trial | IRCT20171017036835N2 |
| Effect of vitamin D supplementation on muscle mass and function among sarcopenic elderly adults with vitamin D insufficiency: a randomized controlled trial | Effect of vitamin D supplementation on muscle mass and function among sarcopenic elderly adults with vitamin D insufficiency: a randomized controlled trial - vitamin D supplementation on sarcopenia | JPRN-UMIN000048060 |
| The Role of Vitamin D3 Supplementation in Advanced Cancer Patients With Pain | The Role of Vitamin D3 Supplementation in Advanced Cancer Patients With Pain | NCT05450419 |
| The effect of oral vitamin D supplementation on satisfaction, performance, and sexual self-efficacy | The effect of vitamin D supplements on sexual satisfaction, function and self-efficacy among women in reproductive age. | IRCT20180117038413N1 |
| Optimizing Vitamin D Nutrition in Healthy Adults | Optimizing Vitamin D Nutrition in Healthy Adults | NCT00327847 |
| Evaluation of the effect of intra-articular injection of dexamethasone and vitamin D compared to injection of dexamethasone alone on signs of knee osteoarthritis | The Effects of Intra-articular injection of dexamethasone and vitamin D compared to injection of just dexamethasone on signs of knee osteoarthritis with grade 2 and 3_ a randomized double-blind clinical trial | IRCT20220526054993N1 |
| Comparison of the effect of vitamin D, vitamin E and ginger on pain intensity of menstruation among students | Comparison of the effect of vitamin D, vitamin E and ginger on the severity of primary dysmenorrhea among students | IRCT20120104008611N7 |
| Adding vitamin D to the treatment of chronic urticaria can be helpful. | Role of vitamin D supplementation on symptom score and quality of life in patients with chronic urticaria. | CTRI/2022/07/044324 |
| Vitamin D and Calcium Supplementation in Breast Cancer | Effect of Vitamin D and Calcium Supplementation on Letrozole-induced Musculoskeletal Side Effects in Breast Cancer Egyptian Patients | NCT05523609 |
| Vitamin D and falls in people with stroke | The trajectory of Vitamin D and other biomarkers in older people in first 12 months after stroke and the relationship of these biomarkers with falls. | ACTRN12618000358246 |
| Comparison of efficacy of intralesional vitamin D3 vs intralesional triamcinolone injection in the treatment of keloid | Comparison of efficacy of intralesional vitamin D3 vs intralesional triamcinolone acetonide injection in keloid- A Randomised non inferiority study | CTRI/2022/09/045800 |
| The effects of magnesium and vitamin D supplement on muscle strength, muscle function, and inflammatory markers in middle-aged women. | The effects of magnesium and vitamin D supplement on muscle strength, muscle function, and inflammatory markers in middle-aged women. | IRCT20090822002365N20 |
| the effect of vitamin D fortified bread on metabolic biomarkers | The effect of daily consumption of different doses of fortified Lavash bread versus plain bread on serum vitamin D status and metabolic biomarkers in healthy adults | IRCT20170812035642N3 |
| Comparison of effectiveness of injection vitamin D3 with normal saline in patients suffering from warts | Immunotherapy of cutaneous warts: A novel comparative study between intralesional vitamin D3 and normal saline from eastern India | CTRI/2022/10/046217 |
| Effects of Vitamin D supplementation on clinical prognosis for patients with Crohn's disease | Effects of Vitamin D supplementation on clinical prognosis for patients with Crohn's disease | ChiCTR1800015174 |
| STUDY ON VITAMIN D 3 FOR POST ORTHODONTIC STABILITY | EFFECT OF VITAMIN D3 ON POST ORTHODONTIC TREATMENT STABILITY -A RANDOMIZED CONTROLLED TRIAL | CTRI/2022/10/046600 |
| EFFECT OF VITAMIN D SUPPLEMENTATION ON PROTEIN LOSS IN URINE IN INDIVIDUALS WITH PREDIABETES AND VITAMIN D DEFICIENCY | EFFECT OF VITAMIN D SUPPLEMENTATION ON MICROALBUMINURIA IN NORMOTENSIVE PREDIABETICS WITH VITAMIN D DEFICIENCY: A RANDOMIZED CONTROLLED TRIAL - None | CTRI/2018/03/012538 |
| Myoinostol,Vitamin D3 and clomiphene citrate for Ovulation induction in infertile women with Polycystic Ovarian syndrome-A Randomized control trial . | Effect of Myoinositol and Vitamin D3 on Clomiphene Citrate induced Ovulation in infertile woman with Polycystic Ovarian syndrome-A Randomized control trial | CTRI/2022/10/046750 |
| Effects of vitamin D and omega-3 fatty acids co-supplementation on inflammatory biomarkers, tumor marker CEA, and nutritional status in patients with colorectal cancer | Effects of vitamin D and omega-3 fatty acids co-supplementation on inflammatory biomarkers, tumor marker CEA, and nutritional status in patients with colorectal cancer | IRCT20180306038979N1 |
| Effect of Vitamin D3 in patients with Traumatic Brain Injury | Effect of high dose vitamin D3 on IL-ß blood level in patients with moderate to severe Traumatic Brain Injury (TBI): Randomized Clinical Trial | IRCT20180522039777N2 |
| A Trial to Study the Effect of Vitamin D Supplementation on Glucose and Insulin Metabolism in Centrally Obese Men | A Double Blind Randomized Control Trial to Study the Effect of Vitamin D Supplementation on Peripheral Insulin Sensitivity in Centrally Obese Men | NCT00347542 |
| The effect of vitamin D supplementation on male infertility | The effect of vitamin D supplementation on spermatogram, seminal and serum levels of oxidative stress indices in idiopathic oligoasthenospermia infertile men: triple blind clinical trial | IRCT20151128025274N4 |
| Vitamin D Status in Inflammatory Bowel Disease | Vitamin D Status in Inflammatory Bowel Disease | NCT03496246 |
| Oral Vitamin D supplementation with 800IU versus 400IU in improving serum Vitamin D levels among term breastfed Small for Gestational Age neonates | Efficacy of daily oral Vitamin D3 supplementation with 800IU versus 400 IU in improving serum Vitamin D levels among term breastfed Small for Gestational Age neonates at 14 weeks postnatal age: An Open label Randomised Controlled Trial - NIL | CTRI/2023/09/057291 |
| A controlled intervention study of vitamin D supplementation on neuromuscular and psychomotor function in elderly people who fall | | ISRCTN53385740 |
| Primary prevention of fractures in the elderly: randomised controlled trial (RCT) of an annual injection of vitamin D in the prevention of hip and other non-vertebral fractures | | ISRCTN13267529 |
| The Effect of Alendronate, Calcium, and Vitamin D on Bone Mineral Density in HIV Infected Patients | A Phase II, Randomized, Double-Blind, Placebo-Controlled Study of Once-Weekly Alendronate in HIV-Infected Subjects With Decreased Bone Mineral Density Receiving Calcium and Vitamin D | NCT00061256 |
| Vitamin D Metabolism and the Williams Syndrome | Vitamin D Metabolism and the Williams Syndrome | NCT00013962 |
| Combination therapy using calcium/vitamin D and protein/calorie supplements in nutritionally deficient women | A randomised controlled trial of combination therapy using calcium/vitamin D and protein/calorie supplements in nutritionally deficient women: an assessment of changes in osteoporotic fracture risk | ISRCTN62937696 |
| Randomised trial of vitamin D and calcium for the secondary prevention of osteoporosis related fractures in the elderly | | ISRCTN51647438 |
| The Relationship Between Vitamin D, Fingernail Thickness and Bone Density | | NCT00006196 |
| Effects of Multiple Mega-dose of Vitamin D3 Supplementation on Ameliorating Moderate to Severe Chronic Pain in Hemodialysis Patients | Effects of Multiple Mega-dose of Vitamin D3 Supplementation on Ameliorating Moderate to Severe Chronic Pain in Hemodialysis Patients | NCT05667090 |
| Effects of Vitamin D on the Behaviours, Mental, and Physical Health of Prisoners | Open Controlled Trial to Explore the Effectiveness of Vitamin D Supplements on the Behaviours, Mental, and Physical Health of United Kingdom Prison Residents | NCT05724316 |
| Comparison of Intramuscular and Oral Vitamin D Treatment in Preterm Infants | Comparison of vitamin D levels after oral and intramascular vitamin D treatment in premature infants with vitamin D deficiency | IRCT20160120026115N8 |
| The effects of oral vitamin D supplementation on cardiovascular disease risk in UK South Asian women | The effects of oral vitamin D supplementation on cardiovascular disease risk in UK South Asian women: a randomised, placebo-controlled, parallel-group, double-blinded study | ISRCTN75081811 |
| Effect of vitamin D on platelet increase in chronic idiopathic thrombocytopenic purpura | Vitamin D levels in children with chronic idiopathic thrombocytopenic purpura and the effect of vitamin D supplementation on platelet increase | IRCT20220817055737N1 |
| Anti-proliferative Effects of Vitamin D and Melatonin in Breast Cancer | Anti-proliferative Effects of Vitamin D and Melatonin in Breast Cancer | NCT01965522 |
| Effects of wearable device on vitamin D | The effect of attachable light-emitting device on Serum Vitamin D level in healthy adults | KCT0007033 |
| effect of vitamin D on Autism Spectrum Disorders | Effect of vitamin D supplementation on core symptoms and serum biomarkers (serotonin and IL-6) in children with autism spectrum disorders | IRCT20131013014994N5 |
| Can vitamin D improve symptoms and quality of life in people with irritable bowel syndrome (IBS)? | To assess whether an increase of vitamin D in subjects with irritable bowel syndrome improves symptoms (D-IBS) | ISRCTN13277340 |
| Vitamin D Status With Early Childhood Caries | The Relationship Between Vitamin D Status and Early Childhood Caries Development: A Case-Control Piolet Study | NCT03521492 |
| The role of vitamin D on the left ventricle ejection fraction in thalassemia major patients with cardiac hemosiderosis in Tabriz children’s hospital | The role of vitamin D on the left ventricle ejection fraction in thalassemia major patients with cardiac hemosiderosis in Tabriz children’s hospital | IRCT20150618022805N2 |
| The effect of vitamin D supplementation in people with sperm motility disorder | The effect of vitamin D supplementation on androgen hormones, sperm motility, and morphology in patients with sperm motility disorder and vitamin D deficiency. | IRCT20120913010826N29 |
| Bioequivalence Study on Vitamin D in Healthy Adults | A Randomized, Examiner-blind Comparator-controlled Crossover Bioequivalence Study on Vitamin D in Healthy Adults | NCT03552653 |
| Vitamin D sufficiency and glcemic control in children with type 1 diabetes mellitus | Vitamin D Supplementation and Glycemic Status in Children and Adolescents with Type 1 Diabetes Mellitus: a double blind randomized controlled trial | CTRI/2018/05/013812 |
| Prospective Study of Vitamin A and Vitamin D Treatment in Children with Autism Spectrum Disorders | Prospective Study of Vitamin A and Vitamin D Treatment in Children with Autism Spectrum Disorders | ChiCTR1800016113 |
| REstoration with calcifediol of VItamin D deficiency in pulmonary Arterial Hypertension patients (REVIDAH study) | REstoration with calcifediol of VItamin D deficiency in pulmonary Arterial Hypertension patients (REVIDAH study) | CTIS2025-521694-14-00 |
| A randomised, double-blind, placebo-controlled trial of Vitamin D supplementation in the management of symptomatic knee osteoarthritis (the VIDEO study) | A randomised, double-blind, placebo-controlled trial of Vitamin D supplementation in the management of symptomatic knee osteoarthritis (the VIDEO study) | ISRCTN94818153 |
| Effect of vitamin D on serum levels of CHI3L1 inflammatory factor and oxidative stress in patients with multiple sclerosis | Effect of vitamin D on serum levels of CHI3L1 inflammatory factor and oxidative stress in patients with multiple sclerosis: a before-after clinical trial | IRCT20120215009014N473 |
| Vitamin D Treatment for Crohn´s Disease | Remission Keeping and Remission Inducing Effect by Vitamin-D in Crohns Disease, and in Vitro Vitamin-D Mediated T-Cell Immunomodulation | NCT00132184 |
| Treatment of bone loss and changes in bone architecture in osteopenic patients with Crohn's disease; a comparison between calcium supplementation and vitamin D alone or combined with oral Risedronate 35 mg once weekly. | Treatment of bone loss and changes in bone architecture in osteopenic patients with Crohn's disease; a comparison between calcium supplementation and vitamin D alone or combined with oral Risedronate 35 mg once weekly. | NL-OMON27088 |
| Clinical study on the effect of vitamin D receptor FokI genotype on the responsiveness of vitamin D3-assisted periodontal therapy for severe periodontitis | Clinical study on the effect of vitamin D receptor FokI genotype on the responsiveness of vitamin D3-assisted periodontal therapy for severe periodontitis | ChiCTR2300071336 |
| The Effect of Vitamin D and Synbiotic Supplementation in Type 1 Diabetes. | The effects of vitamin D and synbiotic co-supplementation on HbA1c, Metabolic Profile, Serum Concentration of some biomarkers of inflammation, oxidative stress and quality of life in patients with type 1 diabetes | IRCT20180127038521N1 |
| In moderate and late preterm newborns supplementation of postpartum mothers with vitamin D3 to achieve adequate levels of vitamin D in these newborns versus the routine supplementation of the newborns receiving Mothers Own Milk. A 3 month follow up randomized trial | Effect of High Dose Vitamin D3 Supplementation in Postpartum Mothers on Vitamin D Status of Moderate and Late Preterm babies receiving Mothers Own Milk. A 3 month Follow up Randomized Controlled Trial | CTRI/2023/05/052822 |
| Supplementation of Vitamin D3 in Iron deficient anemic pregnant women | Vitamin D supplementation in Iron Deficiency anemia among pregnant women: An open label prospective Interventional study | CTRI/2018/04/012997 |
| Treatment of bone loss and changes in bone architecture in osteopenic patients with Crohn's disease: a comparison between calcium supplementation and vitamin D alone or combined with oral risedronate 35 mg once weekly | Treatment of bone loss and changes in bone architecture in osteopenic patients with Crohn's disease: a comparison between calcium supplementation and vitamin D alone or combined with oral risedronate 35 mg once weekly | ISRCTN59682218 |
| Comparison of efficacy of intralesional Injection Vitamin D3 with intralesional MMR vaccine in the management of cutaneous warts | Comparison of efficacy of intralesional Vitamin D3 with intralesional MMR vaccine in the management of cutaneous warts : a randomized controlled trial | CTRI/2023/05/053231 |
| High Dose Vit D Musculoskeletal Symptoms & Bone Density in Anastrozole-Treated Breast Cancer With Marginal Vit D Status | A Double-Blind, Randomized, Placebo Controlled Trial of High Dose Vitamin D Therapy On Musculoskeletal Symptoms and Bone Mineral Density in Anastrozole-Treated Early Stage Breast Cancer Patients With Marginal Vitamin D Status | NCT00263185 |
| To evaluate and compare DFDBA & T-PRF with & without Vitamin D3 gel in the treatment of periodontal intrabony defects | Comparative evaluation of Decalcified Freeze-Dried Bone Allograft & T-PRF with & without Vitamin D3 gel in the treatment of periodontal intrabony defects: A clinico-radiographic study. | CTRI/2023/06/053940 |
| Elderly bone health and impact evaluation of different doses of calcium and vitamin D with or without weight bearing exercises on bone health. | An investigation into bone mass density and its correlation with dietary calcium, vitamin D intake and exercise and impact of calcium and vitamin D supplementation in relation to bone health to the geriatric population of selected areas of urban Vadodara. | CTRI/2018/04/013075 |
| Short-term Effects of Juice Consumption With Biofunctional Compounds and Probiotics on Subjective Appetite | Short-term Effects of Fruit Juice Enriched With Vitamin D3, n-3 Fatty Acids, and Probiotics on Subjective Appetite, Energy Intake, and Glycemic Responses, in Healthy Adults | NCT05928741 |
| Early Vitamin D3 Supplementation for Critically Ill Patients | Effects of Early Vitamin D3 Supplementation on Clinical Outcomes for Critically Ill Patients | NCT05937789 |
| Comparing intralesional vitamin D3 with cryotherapy and cryotherapy alone in warts | Comparing the effectiveness of intralesional vitamin D3 plus cryotherapy versus monotherapy of cryotherapy among patients with cutaneous warts | IRCT20230124057201N3 |
| Randomized Study Of Exercise And Vitamin D In Frail Elderly Subjects | Evaluation of the Effect of a 4-Month Intervention of Exercise and/or Vitamin D on Mobility Function and Strength in Frail Elderly Subjects | NCT00249704 |
| Studying the effectiveness of the “Vitamin D mega-dose supplementation” on the Health status of the High school boys in Tehran | Studying the effectiveness of the “Vitamin D mega-dose supplementation” on the Health status of the High school boys in Tehran | IRCT20150826023776N4 |
| Study of outcomes after vitamin D supplementation in HIV positive children | Study of Effect of Vitamin D supplementation in Human Immunodeficiency Virus infected children | CTRI/2018/04/013290 |
| Therapeutic effect of vitamin D on Hashimoto thyroiditis | Therapeutic effect of vitamin D on Hashimoto thyroiditis | IRCT20180228038900N1 |
| Vitamin D Intervention To Prevent Falls and Fractures and To Promote Mental Well-Being. | Primary Care Prevention of Falls and Fractures in the Elderly by Annual Vitamin D Supplementation. | ACTRN12605000658617 |
| The Effect of Testosteron Replacement Treatment on the Fibroblast Growth Factor-23, Asymmetric Dimethylarginine and Vitamin D Levels in the Congenital Hypogonadotropic Hypogonadism | Phase 4 Study of Effect of Testosteron Replacement Treatment on the Fibroblast Growth Factor-23, Asymmetric Dimethylarginine and Vitamin D Levels in the Congenital Hypogonadotropic Hypogonadism | NCT02111473 |
| Effects of Transdermal Testosterone and/or Monthly Vitamin D on Fall Risk in Pre--frail Hypogonadal Seniors | Effects of Transdermal Testosterone and/or Monthly Vitamin D on Fall Risk in Pre--frail Hypogonadal Seniors. Double Blind, 2x2 Factorial, Randomized Placebo--Controlled Clinical Trial | NCT02419105 |
| Correction of Vitamin D Inadequacy in Nursing Home Residents | Effect of Vitamin D Supplementation on Skeletal and Overall Health of Nursing Home Residents | NCT00204906 |
| Vitamin D Administration in the Nursing Home | Intermittent Vitamin D Administration in the Nursing Home: Impact on Vitamin D Status, Falls, Bone Turnover and Bone Density | NCT00204919 |
| Study to Investigate if Adding Lactulose to Vitamin D and Calcium Has an Effect on the Preservation of Bone in Postmenopausal Women | A Randomized, Double-Blind, Multicenter, Parallel Pilot Clinical Trial to Study the Efficay of a Treatment of Lactulose + Vitamin D + Calcium 0.5 g Concurrently Controlled With a Standard Treatment (Vit D + Calcium) in Bone Mass Preservation Among Postmenopausal Women | NCT00160264 |
| ACHIEVE: Optimizing the Treatment of Secondary Hyperparathyroidism | ACHIEVE: Optimizing the Treatment of Secondary Hyperparathyroidism: A Comparison of Sensipar® and Low Dose Vitamin D vs. Escalating Doses of Vitamin D Alone | NCT00135304 |
| Efficacy of vitamin D supplementation in multiple myeloma patients. | Efficacy of a predefined vitamin D dosing regimen in vitamin D-insufficient multiple myeloma patients. - Efficacy of vitamin D supplementation in multiple myeloma patients. | EUCTR2017-005110-58-NL |
| Effect of vit-D in renal failure | The effect of vitamin D on insulin resistance in renal failure patients. | IRCT20170718035156N2 |
| Clinical research study to evaluate the effect on gingival inflammation of a toothpaste containing vitamin D in patients with established dental plaque and gingivitis. | Clinical research study to evaluate the effect on gingival inflammation of a toothpaste containing vitamin D in patients with established dental plaque and gingivitis. | ACTRN12621000885897 |
| Vitamin D3 Supplementation for Vitamin D Deficiency in Rotator Cuff Repair Surgery | Vitamin D3 Supplementation vs Placebo for Vitamin D Deficient/Insufficient Patients Undergoing Arthroscopic Rotator Cuff Repair: a Quadruple-blinded Randomized Controlled Trial | NCT05009498 |
| Effects of Stoss Therapy of Vitamin D3 on Peri-operative Outcomes in Patients Receiving General Surgery | Effects of Stoss Therapy of Vitamin D3 on Peri-operative Outcomes in Patients Receiving General Surgery | NCT05650268 |
| Cholecalciferol Comedication in IBD - the 5C-study | Cholecalciferol Comedication in Patients With Chronic Inflammatory Bowel Diseases (Crohn's Disease or Ulcerative Colitis) - the 5C-study | NCT04991324 |
| The Effect of Oral Vitamin D Supplements on Fusion Outcome in Patients Receiving Elective Lumbar Spinal Fusion | The Effect of Oral Vitamin D Supplements on Fusion Outcome in Patients Receiving Elective Lumbar Spinal Fusion | NCT05023122 |
| Vitamin D Reabsorption in Adolescents and Young Adults With HIV Infection | Randomized, Placebo-controlled Trial of the Safety and Effectiveness of Vitamin D Supplement to Improve Tubular Reabsorption of Phosphate and Decrease Bone Turnover in Adolescents and Young Adults With HIV Infection Being Treated With Antiretroviral Therapy Containing Tenofovir Compared to Those Being Treated With Antiretroviral Therapy Not Containing Tenofovir | NCT00490412 |
| To Study the Effects of Vitamin D3 gummies Consumption on Blood Glucose and Markers of Inflammation in Obese Adults | The Effects of Vitamin D3 gummies supplementation on Blood Glucose and Markers of Inflammation in Obese Adults | CTRI/2021/09/036182 |
| Role of Vitamin D3 Supplementation With Conventional Synthetic Disease Modifying Antirheumatic Drugs(csDMARD) in Rheumatoid Arthritis Patients | Role of Vitamin D3 Supplementation With Conventional Synthetic Disease Modifying Antirheumatic Drugs (csDMARD) in Rheumatoid Arthritis Patients: Randomized Double-blind Placebo Controlled Trial | NCT05078502 |
| Effects of vitamin D supplementation during pregnancy on maternal, infants health and offspring development | Effects of vitamin D supplementation during pregnancy on maternal, infants health and offspring development | ChiCTR2100051914 |
| Vitamin D Level and Risk of Infections in Cirrhotic Patients | Vitamin D Level and Risk of Infections in Cirrhotic Patients: Does it Have a Role? | NCT03391245 |
| Vitamin D and Cognition Trial | A randomised, placebo controlled trial of Vitamin D in older adults with mild cognitive impairment and low vitamin D concentration to prevent cognitive decline and delay progression of cognitive decline. | ACTRN12607000321448 |
| Evaluation of the effect of vitamin D supplementation on insulin resistance, lipid profile, thyroid function indices and body composition in overweight and obese patients with hypothyroidism and glucose intolerance | Evaluation of the effect of vitamin D supplementation on insulin resistance, lipid profile, thyroid function indices and body composition in overweight and obese patients with hypothyroidism and glucose intolerance | IRCT20210630051751N1 |
| Design and Application of Vitamin D Films for Burn Healing After Cauterizing Surgery | Formulation, Characterization and In-vivo Evaluation of Controlled Release Intranasal Films of Vitamin D3 as an Optimistic Dosage Form for Rapid and Effective Healing of Cauterized Turbinectomy | NCT05142072 |
| Impact of vitamin D supplementation of preterm births | Impact of vitamin D supplementation on preterm births and pre-rupture of membrane: A double-blind randomized controlled trial | CTRI/2021/10/037658 |
| Vitamin D Supplementation and Clinical Improvement in COVID-19 | Vitamin D Supplementation and Changes of Hematology Parameter, Coagulation Profile, and Clinical Improvement Among COVID-19 Patients | NCT05126602 |
| Effect of vitamin D intervention on metabolism and developmental outcomes of GDM pregnant women and their offspring | Effect of vitamin D intervention on metabolism and developmental outcome of GDM pregnant women and their offspring | ChiCTR2100053379 |
| Vitamin D to Improve Quadricep Muscle Strength | Vitamin D as an Intervention for Improving Quadricep Muscle Strength in Patients After Anterior Cruciate Ligament Reconstruction: A Randomized Double-Blinded, Placebo-Controlled Clinical Trial | NCT05174611 |
| Effect of vitamin D intervention on development in offspring exposure to maternal gestational diabetes: the role of microbiota | Effect of vitamin D intervention on development in offspring exposure to maternal gestational diabetes: the role of microbiota | ChiCTR2100054213 |
| Study of target amount of vitamin D intake for athletes | Study of target amount of vitamin D intake for athletes - Study of target amount of vitamin D intake for athletes | JPRN-UMIN000046325 |
| Effect of vitamin D on Corona disease | Effect of high dose of vitamin D on mortality, length of stay and inflammatory markers on Covid 19 patients admitted in the intensive care unit | IRCT20170827035936N2 |
| Pharmacokinetics Evaluation of Vitamin D Formulations | Pharmacokinetics Evaluation of Different Vitamin D3 Formulations | NCT05209425 |
| A STUDY TO COMPARETHE EFFECTIVENESS AND SAFETY OF INTRALESIONAL VITAMIN D3 WITHINTRALESIONAL TRIAMCINOLONE IN PATIENTS WITH KELOIDS. | A DOUBLE-BLINDED RANDOMIZED CONTROL STUDY TO COMPARETHEEFFECTIVENESS AND SAFETY OF INTRALESIONAL VITAMIN D3 WITHINTRALESIONAL TRIAMCINOLONE AND ITâ??S CORRELATION WITH TISSUEEXPRESSION OF VITAMIN D RECEPTORS IN PATIENTS WITH KELOID | CTRI/2022/01/039579 |
| Effect of Vitamin D in Patients With Diabetic Peripheral Neuropathy to Alleviate Pain and Improvement of Symptoms | Randomized, Double-Blind, Placebo-Controlled Study to Assess the Effect of Vitamin D in Patients With Diabetic Peripheral Neuropathy to Alleviate Pain and Improvement of Symptoms | NCT04984044 |
| Changes to the immune system after vitamin D supplementation in healthy individuals and people with multiple sclerosis | Effect of vitamin D supplementation on immune cells of healthy adults and adults with multiple sclerosis | ACTRN12621000597897 |
| Vitamin D Absorbance Study - Clinical Trial of the Absorbance of Nano Liquid D3 | Vitamin D Absorbance Study - A Decentralized, Randomized, Double-blind, Placebo-controlled Clinical Trial of the Pharmacokinetics of Vitamin D3 Absorption From Softgel Supplements Compared to Nano Liquid D3 Supplements in Humans. | NCT04885803 |
| The effect of vitamin D3 supplementation on AKI risk in multiple trauma patients admitted to ICU with elevated CPK level | The effect of vitamin D3 supplementation on AKI risk in multiple trauma patients admitted to ICU with elevated CPK level | IRCT20120703010178N23 |
| THE IMPACT OF VITAMIN D3 HIGH DOSES SUPPLEMENTATTION ON SOFT TISSUE WOUND-HEALING AFTER MANDIBULAR THIRD MOLAR (M3) REMOVAL: A PILOT STUDY | THE IMPACT OF VITAMIN D3 HIGH DOSES SUPPLEMENTATTION ON SOFT TISSUE WOUND-HEALING AFTER MANDIBULAR THIRD MOLAR (M3) REMOVAL: A PILOT STUDY - VitDM3BH | EUCTR2021-000200-38-AT |
| Immunomodulating Effects of Supplementation With 25-OH Vitamin D | Immunomodulating Effects of Supplementation With 25 oh Vitamin D in Adults With Scleroderma and Hypovitaminosis D | NCT04822038 |
| Effect of Maternal Vitamin D3 Supplementation on Iron Status During Pregnancy and Early Infancy | Effect of Maternal Vitamin D3 Supplementation on Iron Status During Pregnancy and Early Infancy | NCT04764955 |
| Temporal Profile of Serum Vitamin D Levels in Foot and Ankle Fusion Surgery | Temporal Profile of Serum Vitamin D Levels and Outcomes After Total Ankle Arthroplasty, Ankle Arthrodesis and First Metatarsophalangeal Joint Arthrodesis | NCT04772196 |
| Vitamin D Supplementation RCT in Infants with RS Viral Infection for Preventing Recurrent Wheeze | Vitamin D Supplementation in Infants with RS Viral Infection for Preventing Recurrent Wheeze: A Randomized, Double-Blind, Placebo-Controlled Study - RSVD | JPRN-jRCTs031200376 |
| Vitamin D and Soy Supplements in Treating Patients With Recurrent Prostate Cancer | Phase II Trial of Vitamin D and Soy Supplementation for Biochemically Recurrent Prostate Cancer Following Definitive Local Therapy | NCT00499408 |
| Assessment of malnutrition in patients with ulcerative colitis and effect of supplementation of Calcitriol in patients with active disease. | Assessment of prevalence and predictors of micronutrient deficiency in patients with ulcerative colitis and the effect of supplementation of active vitamin D in patients with Active Ulcerative Colitis â?? a double blind randomized placebo-controlled trial. | CTRI/2021/03/031675 |
| Prevention of Vitamin D Deficiency | Prevention of Vitamin D Deficiency in Breastfed Infants | NCT00494104 |
| Vitamin D3 Levels in COVID-19 Outpatients From Western Mexico | Vitamin D3 Levels in COVID-19 Outpatients From Western Mexico: Clinical Correlation and Effect of Its Supplementation | NCT04793243 |
| Vitamin D Effects in Overweight Patients | Effects of a Vitamin D (Cholecalciferol) Supplement on Body Composition, Blood Pressure, and Lipid and Diabetes Parameters in Overweight Patients Attending a Telemedically Guided Weight Loss Program | NCT00493012 |
| Effect and mechanism of vitamin D on iron overload in patients with NAFLD | Effect and mechanism of vitamin D on iron overload in patients with NAFLD | ChiCTR2100044065 |
| Randomized controlled double-blind trial of the effect of vitamin D3 (cholecalciferol) supplementation for vitiligo patients. | Randomized controlled double-blind trial of the effect of vitamin D3(cholecalciferol) supplementation for vitiligo patients. | JPRN-jRCTs021200041 |
| Vitamin D Replacement Using Oral Thin Film (OTF) Cholecalciferol in Patients Undergoing Hematopoietic Stem Cell Transplantation | Vitamin D Replacement Using Oral Thin Film (OTF) Cholecalciferol in Patients Undergoing Hematopoietic Stem Cell Transplantation | NCT04818957 |
| The efficacy of Aendronate Sodium and Vitamin D3 tablets (Gubangjia) in the treatment of early osteonecrosis of the femoral head with osteoporosis | The efficacy of Aendronate Sodium and Vitamin D3 tablets (Gubangjia) in the treatment of early osteonecrosis of the femoral head with osteoporosis | ChiCTR2100044765 |
| Study the effect of vitamin D3 and vitamin C on glycemic control and oxidative stress markers in Type-2 Diabetes mellitus patients. | A prospective, open label, 3 arm, parallel group comparative study toevaluate the effect of short term treatment with vitamin Dâ?? and vitamin Con glycemic control and oxidative stress markers in inadequatelycontrolled type-2 diabetes mellitus. | CTRI/2021/03/032373 |
| Low vs. Moderate to High Dose Vitamin D for Prevention of COVID-19 | Low vs. Moderate to High Dose Vitamin D for Prevention of COVID-19 | NCT04868903 |
| The Effect of Vitamin D Supplementation in Overweight and Obese Pregnant Women | The Effect of Vitamin D Supplementation in Overweight and Obese Pregnant Women | NCT04841265 |
| Phase II Clinical Trial of Vitamin D3 for Reducing Recurrence of Recurrent Lower Urinary Tract Infections | Phase II Clinical Trial of Vitamin D3 for Reducing Recurrence of Recurrent Lower Urinary Tract Infections: a Multicenter, Randomized, Placebo-controlled Trial | NCT04859621 |
| Scottish Vitamin D Intervention Study | Scottish Vitamin D Intervention Study | NCT04868227 |
| Effects of Vitamin D Supplementation on Depression and Inflammatory Markers | Effects of Vitamin D Supplementation on Depression and Inflammatory Markers in Adolescent and Youth With Major Depression and Vitamin D-deficiency: a Partially Randomized Preference Trial in Taiwan | NCT04898725 |
| effectiveness of vitamin D in COPD | effectiveness of vitamin D supplementation in quality of life of patients with chronic obstructive pulmonary disease and vitamin D deficiency | IRCT20190810044500N12 |
| High dose vitamin D3 supplementation in the management of skin fungal infection. | Open label parallel assignment pilot study of high dose vitamin D3 supplementation as an adjuvant to standard of care in management of recalcitrant dermatophytosis. | CTRI/2022/05/042761 |
| The effect of vitamin D on people with prediabetes | The effect of vitamin D supplementation on glycemic status of elderly people with prediabetes: a 12-month open-label, randomized-controlled study | ISRCTN51643592 |
| Effect of vitamin D3 on mild to moderate CTDs and TS children aged 6-13 years | Effect of vitamin D3 on mild to moderate CTDs and TS children aged 6-13 years | ChiCTR2200056482 |
| Effects of high dose vitamin D suppletion on muscle mass and muscle strength in frail elderly peolple. | Effects of high dose vitamin D suppletion on muscle strength in frail elderly peolple. | NL-OMON21117 |
| Index and Threshold Exploring for Optimal Vitamin D in Chinese Women of Childbearing Age | Index and Threshold Exploring for Optimal Vitamin D in Chinese Women of Childbearing Age | ChiCTR2200058290 |
| Comparative study of denosumab and alendronate vitamin D3 on bone metabolism and bone mineral density after total hip arthroplasty | Comparative study of denosumab and alendronate vitamin D3 on bone metabolism and bone mineral density after total hip arthroplasty | ChiCTR2200058773 |
| Correlation of Admission Serum 25-Hydroxy-vitamin D Levels and Clinical Outcomes in Critically Ill Medical Patients | Correlation of Admission Serum 25-Hydroxy-vitamin D Levels and Clinical Outcomes in Critically Ill Medical Patients | TCTR20180211004 |
| Effects of calcium and vitamin D supplementation on bone mineral density and bone related chemistry in elderly women | A 5-year randomised controlled trial of the effects of calcium and vitamin D supplementation on bone mineral density and bone related chemistry in elderly ambulant Australian women | ACTRN12607000055404 |
| Vitamin D for Cognition in Bipolar Disorder | Effect of Vitamin D Supplement for Cognitive Function in Patients With Bipolar Disorder- Randomized Double-Blind Controlled Trial | NCT05357859 |
| Vitamin D supplements in indian children | Optimal Vitamin D Supplementation strategies for vitamin D deficient Indian children | CTRI/2018/02/011889 |
| Effect of Ultraviolet Radiation on Blood Pressure, Cardiac Function and Insulin Sensitivity | A randomised phase III study to evaluate whether Ultraviolet Radiation B lowers blood pressure and insulin resistance and improves cardiac function in people with low vitamin D levels | ACTRN12607000021471 |
| The efficacy of vitamin D and oral alendronate on Modic change | The efficacy of vitamin D and oral alendronate in patients with low back pain and modic changes who underwent lumbar fusion surgery. | IRCT20140915019185N2 |
| Vitamin D status hos patienter med HIV infektion - Intervention with vitamin D - a pilot study - HIVD | Vitamin D status hos patienter med HIV infektion - Intervention with vitamin D - a pilot study - HIVD | EUCTR2006-005039-40-DK |
| The effect of free vitamin D-drops and tailor-made information on serum 25-hydroxyvitamin D among infants of immigrant origin in Oslo, Norway: a randomised controlled trial | | ISRCTN78298308 |
| Pilot Study of Vitamin K2 (MK-7) and Vitamin D3 Supplementation and the Effects on PASC Symptomatology and Inflammatory Biomarkers | Pilot Study of Vitamin K2 (MK-7) and Vitamin D3 Supplementation and the Effects on PASC Symptomatology and Inflammatory Biomarkers | NCT05356936 |
| Serum 25(OH) Vitamin D and Total Serum Immunoglobulin E Levels in Patients With Pityriasis Alba | Serum 25(OH) Vitamin D and Total Serum Immunoglobulin E Levels in Patients With Pityriasis Alba | NCT03443765 |
| Vitamin D status in pregnancy and the effects of vitamin D supplementation in ethnic minority groups - Vitamin D in pregnancy | Vitamin D status in pregnancy and the effects of vitamin D supplementation in ethnic minority groups - Vitamin D in pregnancy | EUCTR2006-006080-23-GB |
| Clinical study on personalized diagnosis and treatment of severe periodontitis with type 2 diabetes guided by vitamin D / VDR system | Clinical study on personalized diagnosis and treatment of severe periodontitis with type 2 diabetes guided by vitamin D / VDR system | ChiCTR2200059348 |
| Effect of probiotic yogurt fortified with vitamin D on fatty liver | Effects of probiotic yogurt fortified with vitamin D in comparison to conventional yogurt on hepatic enzymes, lipid profile, glycemic and anthropometric indices in patients with non-alcoholic fatty liver disease | IRCT20131022015111N3 |
| Vitamin D Supplementation to Patients With Type 2 Diabetes | Vitamin D Supplementation to Patients With Type 2 Diabetes | NCT00400491 |
| Vitamin D supplementation and sarcopenia | Vitamin D supplementation and muscle strength in sarcopenic elderly Lebanese people: A randomised controlled trial | ISRCTN16665940 |
| Vitamin D Dose-Response Study to Establish Dietary Requirements in Infants | Vitamin D Dose-Response Study to Establish Dietary Requirements in Infants | NCT00381914 |
| Zoledronate, Vitamin D, and Calcium With or Without Strontium 89 or Samarium 153 in Preventing or Delaying Bone Problems in Patients With Bone Metastases From Prostate Cancer, Lung Cancer, or Breast Cancer | Randomized Phase III Trial to Evaluate Radiopharmaceuticals and Zoledronic Acid in the Palliation of Osteoblastic Metastases From Lung, Breast, and Prostate Cancer | NCT00365105 |
| Synergistic Effect of Vitamin D Supplementation in Patients With Vitiligo and Vitamin D Deficiency | Vitamin D Supplementation in Patients With Vitiligo Induced Additive Effects With Phototherapy | NCT05364567 |
| The Effect of Vitamin D3 Therapy in Post Menopausal Women and Assessment of Changes in Bone Mineral Density After Orally Vitamin D3 Administration | The Effect of Vitamin D3 Therapy in Post Menopausal Women and Assessment of Changes in Bone Mineral Density | NCT05389943 |
| Evaluating sufficiency of oral Vitamin D dose in babies with birth weight less than 1500g born prematurely before 37 weeks of gestation | Assessment of adequacy of supplemantation of vitamin D in very low birth weight pre term neonates | CTRI/2018/02/012058 |
| Effects of sunlight exposure and vitamin D supplementation on vitamin D levels in postmenopausal women in rural Thailand: A randomized controlled trial | Effects of sunlight exposure and vitamin D supplementation on vitamin D levels in postmenopausal women in rural Thailand: A randomized controlled trial | TCTR20180223003 |
| Effect of Calcium and Vitamin D on Bone Loss From the Hip | Effect of Calcium and Vitamin D on Bone Loss From the Hip | NCT00357643 |
| Effect of Cholecalciferol Supplementation on Disease Activity and Quality of Life of Systemic Lupus Erythematosus Patients . | Effect of Cholecalciferol Supplementation on Disease Activity and Quality of Life of Systemic Lupus Erythematosus Patients | NCT05326841 |
| ROLE OF VITAMIN D3 IN THE MANAGEMENT OF SICKLE CELL DISEASE (SCD) | ROLE OF VITAMIN D3 IN THE MANAGEMENT OF SICKLE CELL DISEASE (SCD): A RANDOMIZED-CONTROLLED TRIAL OF PATIENTS IN LAGOS STATE, NIGERIA | PACTR202202814392581 |
| Adjunctive vitamin A and vitamin D3 (Cholecalciferol) supplement in allergic rhinitis with allergen-specific immunotherapy, A randomized, double blind, placebo-controlled trial | Adjunctive vitamin A and vitamin D3 (Cholecalciferol) supplement in allergic rhinitis with allergen-specific immunotherapy, A randomized, double blind, placebo-controlled trial | TCTR20220228004 |
| To evaluate bio availability study of comparing Vitamin D3 (cholecalciferol) Nano emulsion soft gel capsules in healthy, adult human subjects under fasting conditions. | AN OPEN-LABEL, BALANCED, RANDOMIZED, SINGLE-DOSE, TWO-TREATMENT, TWO-SEQUENCE, TWO-PERIOD, TWO-WAY CROSSOVER ORAL BIO AVAILABILITY STUDY OF COMPARING VITAMIN D3 (CHOLECALCIFEROL) NANO EMULSION SOFTGEL CAPSULES 50000 IU (1250 MCG) MANUFACTURED FOR AMITOJAS PVT LTD AND MANUFACTURED BY GELTEC PVT LTD, INDIA COMPARING WITH VITAMIN D3 (CHOLECALCIFEROL) CAPSULES 50000 IU (1250 MCG) MANUFACTURED BY VITANE PHARMACEUTICALS, INC, USA. IN HEALTHY, ADULT HUMAN SUBJECTS UNDER FASTING CONDITIONS. | CTRI/2022/03/041135 |
| Safety study of a large dose of vitamin D administered to hemodialysis patients and assessment of its effects on the parameters of bone abnormalities | Monthly administration of high-dose vitamin D3 in hemodialysis patients | ISRCTN10043222 |
| Investigating the Effects of Hydroxyvitamin D3 on Multiple Sclerosis | Investigating the Effects of Hydroxyvitamin D3 Versus Vitamin D3 on Clinical, and Radiologic Progress and Th17/Tregs Balance in MS Patients: A Randomized, Clinical Trial- a Pilot Study | NCT05340985 |
| Vitamin D Nasal Drops in Post COVID-19 Parosmia | The Potential Therapeutic Effect of Vitamin D Nasal Drops in the Treatment of Post COVID-19 Parosmia | NCT05269017 |
| Efficacy of vitamin D drugs in Osteoarthritis: A study in a multi-centered health care hospital | Efficacy of vitamin D supplements in Osteoarthritis:An observational study in a tertiary health care facility | CTRI/2017/12/011031 |
| Effect of Yogurt Fortified with beta-Hydroxy beta-Methyl Butyrate (HMB) in Sarcopenic Elderly | Evaluating the Effect of Yogurt Fortified with beta-Hydroxy beta-Methyl Butyrate (HMB), Vitamin D, and Vitamin C on Fat-Free Mass, Muscle Strength, and Physical Functionality in Sarcopenic Elderly | IRCT20171223038017N1 |
| Calcium and Vitamin D Supplementation Decreases Incidence of Stress Fractures in Female Navy Recruits | Calcium and Vitamin D Supplementation Decreases Incidence of Stress Fractures in Female Navy Recruits | NCT00476346 |
| Effect of Vitamin D on Everolimus Trough Concentrations Among Heart Transplanted Patients | The Effect of Normalizing Vitamin D Concentrations on Everlomius Trough Concentrations | NCT03403647 |
| Vitamin D Supplementation in Children With Sickle Cell Disease | Vitamin D Intervention in Children With Sickle Cell Disease: A Pilot Randomized Controlled Trial | NCT03417947 |
| Effect of vitamin D supplementation in treatment of patients with polycystic ovary syndrome candidate for IVF | Clinical trial of the effect of vitamin D supplementation compared with the placebo on metabolic profiles and gene expression related to insulin and lipid in women with polycystic ovary syndrome candidate for IVF | IRCT20170513033941N27 |
| The study about the effect of combination therapy of active form of vitamin D and lanthanum carbonate for serum concentration of FGF23 | The study about the effect of combination therapy of active form of vitamin D and lanthanum carbonate for serum concentration of FGF23 - CVD-LAF study | JPRN-UMIN000030503 |
| The Effect of Vitamin D Supplementation During Caloric Restriction on Intestinal Calcium Absorption | Nutritional Regulation of Bone - Aim 3 | NCT00472654 |
| A scientific study to know the effect of Vitamin D supplementation on CD4 count in newly diagnosed ART eligible HIV infected & Vitamin D deficient patients. | Double blind, parallel group Randomised placebo controlled trial to study the effect of Vitamin D supplementation on CD4 count in newly diagnosed ART eligible HIV infected & Vitamin D deficient patients | CTRI/2018/01/011489 |
| Does vitamin D improve markers of vascular health in stroke patients? | The effect of vitamin D replacement on markers of vascular health in stroke patients - a randomised controlled trial | ISRCTN28737567 |
| Association between serum concentrations of chemicals, sun exposure, and vitamin D | Association between serum concentrations of chemicals, sun exposure, and vitamin D | KCT0002671 |
| Central Sensitization in Vitamin D Deficiency | Central Sensitization in Vitamin D Deficiency and Effect of Vitamin D Replacement on Cutaneous Silent Period | NCT03420378 |
| Study of Vitamin D Effect on myoma size | Comparison of vitamin D and placebo supplementation in reducing uterine myoma size in women with vitamin D deficiency | IRCT20160521027998N5 |
| Vitamin D and Blood Pressure | A Randomized Placebo-controlled Double Blinded Trial to Evaluate Cholecalciferol (Vitamin D3) and Calcitriol Treatment on Reducing Blood Pressure in Middle Aged Adults With Stage I Hypertension and Vitamin D Deficiency | NCT00459563 |
| The effect of calcium and vitamin D on the heartmusclef unction - Heartmuscle function and vitamin D | The effect of calcium and vitamin D on the heartmusclef unction - Heartmuscle function and vitamin D | EUCTR2006-005767-26-DK |
| The effect of vitamin D and vitamin C given with outdoor physical activity on obesity, Blood sugar, blood pressure, body cholesterol | The effect of supplementation vitamin D and vitamin C analoge with endurance physical activity on metabolic syndrome patients | IRCT20161110030823N2 |
| The effect of vitamin D supplementation in patients with ulcerative colitis | Study of the effect of vitamin D supplementation on serum vitamin D concentration, quality of life, disease activity index, and some of inflammatory and oxidative factors in patients with ulcerative colitis with vitamin D deficiency | IRCT20100524004010N22 |
| The effect of vitamin D on insulin resistance | The effect of oral vitamin D on reduction of insulin resistance in chronic kidney disease patients | IRCT20180114038363N1 |
| DEKSEL Nano Syrup [Vitamin D 6000IU/5mL] in patients with Major Depressive Disorder | A Double Blind Study to Assess Efficacy of Add-on Vitamin D over Escitalopram in Major Depressive Disorder | CTRI/2020/12/030020 |
| The effect of vitamin D on the treatment of symptoms in children with attention deficit hyperactivity disorder | Study of the efficacy and safety of vitamin D add-on standard treatment regimen for children with attention-deficit hyperactivity disorder in 7- to 14 year-Old : A 12 weeks randomized, open-label, parallel group Study | IRCT20120314009297N4 |
| Vitamin D Supplementation to Prevent Vitamin D Deficiency for Children With Epilepsy | Vitamin D Supplementation to Prevent Vitamin D Deficiency for Children With Epilepsy: a Randomized Controlled Clinical Trial | NCT03536845 |
| Vitamin D 24'000 IU for Oral Intermittent Supplementation | Vitamin D 24'000 IU for Oral Intermittent Supplementation | NCT03920150 |
| Physical Exercise and Diet Management in Vitamin D Deficient Females | Impact of Home Based Physical Exercise and Diet Management on Functional Performance and Depression Among Vitamin D Deficient Females | NCT06114381 |
| Intervention study for vitamin D combined with folic acid and vitamin B12 on patients with mild cognitive impairment | The role and mechanism of vitamin D combined with folic acid and vitamin B12 regulates key factors in 27-hydroxycholesterol metabolism on improving the occurrence of mild cognitive impairment | ChiCTR1900025452 |
| Comparison of rise in vitamin D levels after oral dose of vitamin D in obese and non-obese children | Response to single oral dose vitamin D in obese vs non-obese vitamin D deficient children of 5-12 years age | CTRI/2019/04/018640 |
| Effect of vitamin D supplements in schizophrenia | The effect of the vitamin D3 on the metabolic parametrs, serum levels of the glycogen synthase kinase-3, ß catenin, BDNF, S100B and ZAG in schizophrenic patients who have vitamin D3 deficiency | IRCT20190313043039N1 |
| The effects of Zinc, vitamin D supplementation and co-supplementation of them versus placebo on lipid profile in overweight and obese subjects | The effects of Zinc, vitamin D supplementation and co-supplementation of them versus placebo on lipid profile in overweight and obese subjects | IRCT20180910040997N1 |
| A study to see the efficacy of injection vitamin D3 given into the skin warts. | Therapeutic efficacy of intralesional vitamin D3 in verruca vulgaris. | CTRI/2019/04/018822 |
| Does high dose Vitamin D use in patients of infection and organ dysfunction with low Vitamin D level improve survival | High dose bolus Vitamin D supplementation in Vitamin D deficient sepsis patients: an open labelled randomised control trial - HBD Vit D trial | CTRI/2019/05/018910 |
| Building bone from blood: The relationship between Vitamin D and Circulating Osteoprogenitor (COP) cells – A pilot study | Building bone from blood: The relationship between Vitamin D and Circulating Osteoprogenitor (COP) cells – A pilot study in otherwise healthy adults with varying levels of Vitamin D, from deficient to sufficient | ACTRN12619000685112 |
| Effects of Vitamin D on Sperm Motility and Antioxidant Capacity in Infertile Male | Effects of Vitamin D on Sperm Motility and Antioxidant Capacity in Infertile Male | TCTR20190511001 |
| Vitamin D Supplementation on Surrogate Markers of Ageing, Ageing Genes, Glycemic and Metabolic Markers in North India | Randomized Control Trial of Vitamin D Supplementation on Surrogate Markers of Ageing, Association/Interactions With Selected Ageing-related Genes, Glycemic and Metabolic Markers in North Indian Individuals With the Prediabetes | NCT04025489 |
| Vitamin D and Health Outcomes in Preterm Born Population | Vitamin D and Health Outcomes in Preterm Born Population -A Cohort and an Intervention Study of Vitamin D on Health Outcomes of Bones, Teeth, Muscles, Heart, and Lungs in Children and Adults Born Preterm in Northern Finland | NCT04342078 |
| Effects of Milk Protein and Vitamin D on Children's Growth and Health | Effects of Milk Protein and Vitamin D on Children's Growth and Health (D-pro) | NCT03956732 |
| The effect of simultaneous oral administration of vitamin D, zinc, calcium and magnesium on type 2 diabetes | The effect of combined oral supplementation vitamin D, zinc, calcium and magnesium on glycemic control, lipid profiles, liver enzymes and CRP index in Type 2 diabetic patients | IRCT20190402043157N1 |
| Health Benefits of Vitamin D and Calcium in Women With PCOS (Polycystic Ovarian Syndrome) | Health Benefits of Vitamin D and Calcium in Women With PCOS (Polycystic Ovarian Syndrome) | NCT00743574 |
| The Effect of 8 Weeks Interval Exercises and Vitamin D Supplementation on Plasma Levels of Dipeptidyl peptidase-4 and retinol binding protein 4 in Overweight Women | The Effect of 8 Weeks Interval Exercises and Vitamin D Supplementation on Plasma Levels of Dipeptidyl peptidase-4 and retinol binding protein 4 in Overweight Women | IRCT20170510033909N3 |
| Effect of Vitamin-D supplementation on COPD patients | Effect of Vitamin D supplementation on symptoms, spirometry, quality of life, SMWT, respiratory muscle strength and their corelation in patients of COPD - vitamin-D and COPD | CTRI/2019/05/019273 |
| Assessment of vitamin D effect in compare with placebo in hemodialysis patients | Assessment of vitamin D effect on oxidative stress products level in compare with placebo among hemodialysis patients, (A double blind randomized clinical trial) | IRCT20181001041190N1 |
| The effectiveness of vitamin D suppletion on improving symptoms of fatigue in children between 12 and 18 years old | The effectiveness of vitamin D suppletion on improving symptoms of fatigue in children between 12 and 18 years old | EUCTR2019-000845-12-NL |
| To study effect of Vitamin D supplementation on atherosclerotic risk factors (endothelial dysfunction) in post-renal transplant patients. | Impact of Vitamin D Supplementation on Endothelial Function in Renal-Transplant Recipients- A Randomized Controlled Trial | CTRI/2019/06/019565 |
| Effect of Vitamin D on Enzymes in type 2 Diabetes patients | Effect of Vitamin D on serum levels and gene Expression of Enzymes Allodose Reductase, Glucosamine Transferase and Glutamine Fructose Amidotransferase in Type 2 Diabetes Patients | IRCT20170813035665N2 |
| Vitamin D and Polycystic Ovarian Syndrome (PCOS) | Efficacy of Vitamin D Supplementation and Metformin Compared to Metformin Alone for Improvement in Follicle Size of Infertile Females With Polycystic Ovary Syndrome: a Randomized Open Label Trial | NCT03989778 |
| Effect of higher dose of vitamin D supplementation in control of disease activity in SLE | Multi-institutional Network Program on Systemic lupus Erythematosus: Understanding the diversity of SLE - VIDSLE | CTRI/2019/06/019658 |
| The effect of vitamin D supplementation in treatment of endometriosis | Study of the effect of vitamin D supplementation on clinical symptoms, parameters of mental health, metabolic profiles, inflammatory factors and biomarkers of oxidative stress in patients with endometriosis | IRCT20170513033941N60 |
| Studying the Effect of Methotrexate Alone Versus Methotrexate and Vitamin D on the Cardiovascular Risk of Psoriatic Patients | Studying the Effect of Methotrexate Alone Versus Methotrexate and Vitamin D on the Cardiovascular Risk of Psoriatic Patients | NCT03904680 |
| Vitamin D and type 2 diabetes. | Vitamin D and type 2 diabetes. | EUCTR2008-003954-13-DK |
| Vitamin D Supplementation in PCOS Patients | Dose Vitamin-D Supplementation Affect Reproductive Outcomes in Patients With Polycystic Ovary Syndrome? | NCT03898934 |
| Effect of vitamin D supplementation on control of gestational diabetes | Study of the effect of vitamin D oral supplementation on glycemic control, serum levels of growth hormone, insulin-like growth factor-1 and lipid profile in gestational diabetes mellitus patients | IRCT20130616013678N29 |
| Effect of omega-3 and vitamin D on women with pre- diabetes and hypo vitaminosis D | Comparative study on the effectiveness of omega-3, vitamin D and co-supplementation on glycemic status, serum lipids and psycological distress in reproductive-aged women with pre- diabetes and hypovitaminosis D | IRCT20100130003226N17 |
| The effectiveness of vitamin D suppletion on improving symptoms of fatigue in children between 12 and 18 years old | The effectiveness of vitamin D suppletion on improving symptoms of fatigue in children between 12 and 18 years old | NL-OMON29083 |
| Vitamin D in chronic Tension-Type Headache | Effect of vitamin D on chronic Tension-Type Headache: A randomized, double-blind, placebo-controlled multi-centric trial | CTRI/2019/02/017793 |
| Serum Levels of 25-Hydroxy Vitamin D in Patients With Moderate and Severe Erectile Dysfunction | Serum Levels of 25-Hydroxy Vitamin D in Patients With Moderate and Severe Erectile Dysfunction | NCT03867929 |
| Effect of exercise training and vitamin D on diabetic patients | Anti-Inflammatory Effects of Vitamin D and Resistance Training in Men with Type 2 Diabetes mellitus and Vitamin D Deficiency | IRCT20190204042621N1 |
| Role of Vitamin D and Its Topical Analogues in Pathogenesis and Treatment of Acne Vulgaris | Vitamin D and Its Topical Analogues: A Possible Role in the Pathogenesis and Treatment of Acne Vulgaris | NCT03866447 |
| Effect of vitamin D supplementat on the level of serum vitamin D in preterm neonates | Comparing the effect of different doses of vitamin D supplement on the level of serum 25(OH) vitamin D and bone metabolism related factors in preterm neonates | IRCT20171030037093N4 |
| The effect of vitamin D supplementation on muscle strength and function in UK South Asian women | A randomized placebo-controlled trial to investigate the effect of vitamin D supplementation on muscle strength and function in UK South Asian post-menopausal women | ISRCTN41610200 |
| Combined Oral Vitamin D and UVB Versus UVB Alone in Treatment of Psoriasis Vulgaris | Combined Oral Vitamin D and UVB Versus Alone in Treatment of Psoroasis Vulgaris | NCT03874975 |
| The Vitamin K2 and D3 Intervention Trial in Children and Adolescents With the Low-energy Fractures | Rationale and Design of the Vitamin K2 and Vitamin D3 Intervention Trial in Children and Adolescents With the Low-energy Bone Fractures | NCT03871322 |
| Vitamin D in ischemic stroke | Investigating of vitamin D administration on the level of inflammatory factors and functional and cognitive scores in patients with cerebral ischemic stroke | IRCT20170104031773N2 |
| Evaluation of vitamin D efficacy on biochemical markers | Evaluation of the efficacy of low-fat dairy products fortified with encapsulated vitamin D on on biochemical markers of liver, kidney and cardiovascular system functions | IRCT20101130005280N27 |
| Vitamin D in Nephrotic Syndrome in Children | The Effect of Vitamin D on Nephrotic Syndrome in Children | IRCT20130518013366N11 |
| The effect of oral vitamin D and vitamin B on Treatment of vitiligo | To compare the improvement of Non-segmental Vitiligo patients with topical PUVA-therapy alone, topical PUVA-therapy and oral vitamin D, topical PUVA-therapy and oral vitamin D and oral vitamin B. | IRCT2016100527404N4 |
| The Role of Vitamin D Supplements on Pulmonary Hypertension in Patients with Thalassemia | Evaluation of the Role of Vitamin D Supplements on Pulmonary Hypertension in Patients with Thalassemia Major and Intermedia | IRCT20190206042644N1 |
| Evaluation of bodyoil fortified with iron, folic acid, vitamin B12 and vitamin D for infant massage | A prospective randomised study to evaluate effect of nano-encapsulated micronutrient fortified body oils for infant massage on developmental and nutritional outcomes | CTRI/2017/11/010710 |
| Effect of Vitamin D in Burn Patients | Effect of Vitamin D in Burn Patients: A Randomized Clinical Trial | NCT03884036 |
| The effect of education based on planned behavioral model in vitamin D supplement taking in lactating women | The effect of education based on planned behavioral model in vitamin D supplement taking in lactating women. | IRCT20110425006284N15 |
| Vitamin D Level and Its Relation to Pre-eclampsia and Eclampsia | Vitamin D Level in Patients With Pre-eclampsia, Eclampsia and Normal Full Term Pregnant | NCT03882099 |
| Prevalence of Vitamin B-12 and Vitamin D deficiency in healthcare professionals | Prevalence of Vitamin B-12 and Vitamin D deficiency in healthcare professionals | TCTR20190412001 |
| Outcome of Vitamin D supplementation alongwith the standard treatment in Lymphoma Patients. | Evaluation of Vitamin D Supplementation in Affecting the Outcome of Newly Diagnosed Patients with Lymphoma | CTRI/2019/03/018211 |
| The effect of preoperative and postoperative vitamin D medication therapy on postoperative urinary IL18,KIM1levels in modarres hospital CABG patients in 1397 year | The association between vitamin D medication therapy and reducing post coronary bypass graft surgery acute kidney injury in patients with low vitamin D levels. | IRCT20180131038578N1 |
| Comparison of Two Different Doses of Vitamin D in Preterm Infants | A Randomized Controlled Trial Comparing Two Regimens of Vitamin D Supplementation in Preterm Neonates | NCT03889717 |
| Vitamin D receptor activator versus intravenous calcimimetics in the treatment of renal patients with secondary hyperparathyroidism: a randomized clinical trial | Vitamin D receptor activator versus intravenous calcimimetics in the treatment of renal patients with secondary hyperparathyroidism: a randomized clinical trial - VICTORY | JPRN-jRCTs051180156 |
| BCAA and vitamin D administration on sarcopenia and bone metabolism abnormality in cirrhosis patients | Effects of oral BCAA and vitamin D administration on sarcopenia and bone metabolism abnormality in cirrhosis patients with hypoalbuminemia | JPRN-jRCTs031180428 |
| Effect of vitamin D supplementation in the treatment of polycystic ovary syndrome | The effects of vitamin D supplementation on hormonal profiles, inflammatory factors, oxidative stress biomarkers and gene expression related to inflammation in women with polycystic ovary syndrome candidates for IVF | IRCT20170513033941N53 |
| Effect of vitamin D on the improvement of infants and children with congenital heart disease | Comparing the effects of vitamin D and placebo on the treatment course of neonates, infants, and children with congenital heart disease following corrective heart surgery | IRCT20170316033099N6 |
| Effects of calcium and vitamin D supplements on cardiac-cerebral vascular disease in the treatment of osteoporosis | Effects of calcium and vitamin D supplements on cardiac-cerebral vascular disease in the treatment of osteoporosis | ChiCTR1900023904 |
| Effect of Vitamin D on Blood Glucose Control | The effect of vitamin D deficiency treatment on control of blood glucose in type 2 diabetic patients | IRCT20190505043480N1 |
| Effect of vitamin D on renin angiotensin system in heart failure patients | Effect of vitamin D on renin angiotensin system in heart failure patients with reduced ejection fraction | PACTR201908774181973 |
| The effect of vitamin D on the treatment of gestational diabetes | Efficacy of vitamin D administration in preventing and controlling gestational diabetes and neonatal outcomes | IRCT20130311012782N34 |
| The effect of vitamin D on the treatment of prostate hypertrophy | The effect of vitamin D supplements on benign hypertrophy | IRCT20180922041089N3 |
| Effects of Platelet-rich Fibrin and Vitamin D? Injections on the Periodontal Health | Evaluation of the Effects of Platelet-rich Fibrin and Vitamin D? Injections on the Periodontal Health During Canine Distalization: A Randomized Controlled Clinical Trial | NCT06223477 |
| Vitamin D and Pregnancy Outcome in PCOS Patients | Vitamin D Supplementation Prior to in Vitro Fertilization in Women With Polycystic Ovary Syndrome: a Protocol of a Multicenter Randomised Double-blind Placebo-controlled Clinical Trial | NCT04082650 |
| Vitamin D Effects on Prostate Pathology | Randomized Trial of the Effects of Vitamin D on Prostate Cancer-associated Lesions and on Vitamin D Metabolites in Prostate | NCT00741364 |
| Vitamin D Supplementation to Correct the Vitamin D Deficiency for Breast Cancer | A PHASE II Multicentric Trial Evaluating a High Dose Vitamin D Supplementation to Correct the Vitamin D Deficiency for Breast Cancer Treated by Adjuvant Chemotherapy | NCT04091178 |
| Milk fortification with Vitamin D in school chidlren | A Randomized Double Blind Controlled Trial to Investigate the Effects of Vitamin D fortified milk on calcium-vitamin D-parathyroid hormone axis in school children, aged 10-14 years | CTRI/2019/09/021073 |
| Influence of calcium and / or vitamin D supplementation in patients with Polycystic Ovarian Syndrome. | Metabolomic analysis in Polycystic Ovarian Syndrome and its application in a randomized clinical trial with calcium and vitamin D supplementation. | RBR-986tpd |
| Effect of vitamin D in autism spectrum disorder: A clinical trial | Efficacy of vitamin D in augmenting behavioral intervention in children with autism spectrum disorder: a randomized placebo controlled double blinded trial | CTRI/2019/09/021079 |
| Effect of Vitamin E and Vitamin D supplement in Postmenopausal Women | 1.Effect of mixed-tocopherol supplement on Bone Turnover Markers in Postmenopausal Osteopenic Women: A prospective, double-blind randomized controlled trial 2.Effect of Vitamin D Supplement on Vulvovaginal Atrophy of the Menopause | TCTR20180419001 |
| Vitamin D supplementation in Chronic Myeloid Leukemia | Vitamin-D3 supplementation with Imatinib in chronic phase chronic myeloid leukemia: A exploratory Randomized Control Trial | CTRI/2019/09/021164 |
| The effect of interval training with vitamin D supplementation on appetite –depended hormones | The effect of 8 weeks interval training with vitamin D supplementation on appetite –depended hormones in overweight men | IRCT20180708040392N2 |
| The effect of vitamin D supplements on the treatment of diabetes | The effect of vitamin D injection on Endothelial Biomarkers, hs-CRP and blood pressure in vitamin D deficient patients with Type 2 Diabeties | IRCT20171003036539N2 |
| Vitamin D supplementation in patients with Cystic Fibrosis | Vitamin D supplementation in patients with Cystic Fibrosis | RBR-439vzm |
| Evaluating the effect of vitamin D supplementation on different stages of blood pressure | Evaluation of the effect of vitamin D supplementation on different stages of blood pressure in hypertension patients with level of vitamin D under 30ng/ml | IRCT20190819044565N1 |
| Vitamin D Supplementation in Knee Osteoarthritis | The Influence of Vitamin D Supplementation With and Without Glucosamine Sulfate and Omega-3 Fatty Acids in Patients With Osteoarthritis Symptoms | NCT04121533 |
| Astudy to compare the daily versus monthly oral vitamin D3 in equivalent doses for treatment of vitamin D deficiency in infants. | Daily versus monthly oral vitamin D3 in equivalent doses for treatment of symptomatic vitamin D deficiency in infants. - none | CTRI/2019/10/021549 |
| Comparision of the effect of vitamin D3 and probiotic containing lactic acid bacteria co-supplementation with vitamin D3 on serum 25(OH)D levels in patients with polycystic ovary syndrome. | Comparision of the effect of vitamin D3 and probiotic containing lactic acid bacteria co-supplementation with vitamin D3 on serum 25(OH)D levels in patients with polycystic ovary syndrome. | IRCT20221121056563N1 |
| The study of injecting one 300000 IU Vitamin D3 in patients with intertrochanteric fracture before the surgery on 6-month mortality rate after the surgery | Evaluating the results of injecting one 300000 IU Vitamin D3 in patients with intertrochanteric fracture before the surgery on 6-month mortality rate after the surgery: A double blinded placebo-controlled randomized clinical trial | IRCT20180729040636N2 |
| Correlation between Vitamin D Level and Clostridium difficile Infections | Correlation between Vitamin D Level and Severity of Clostridium difficile Infections | KCT0004335 |
| the Effect of Vitamin D in Crohn's Disease | the Effect of Target-oriented Vitamin D Treatment in Refractory Crohn's Disease | NCT04134065 |
| effects of chromium and vitamin D supplements on hemosysteien in type 2 diabetes | The effects of the simultaneous use of chromium and vitamin D supplements on hemosysteien in type 2 diabetes | IRCT20190610043852N1 |
| Effect of Vitamin K 2 on Vascular Calcification in Hemodialysis Patients | The Impact of Vitamin K2 and Inactive Vitamin D Supplementation on Vascular Calcification in Pediatric Patients on Regular Hemodialysis | NCT04145492 |
| Effects of combined exercise with supplementation on diabetes | Comparing the effects of combined exercise, whey protein and vitamin D supplementation on insulin resistance in women with diabetes type 2 | IRCT20190707044133N1 |
| Vitamin D Status in Full-term Exclusive Breastfed Infants versus Full-term Breastfed Infants Receiving Vitamin D Supplement in Thailand | Vitamin D Status in Full-term Exclusive Breastfed Infants versus Full-term Breastfed Infants Receiving Vitamin D Supplement in Thailand | TCTR20190622001 |
| Effect of vitamin D & magnesium on inflammation and obesity- induced depressive symptoms | Effect of vitamin D and/or magnesium supplementation on mood, serum level of BDNF, inflammation, and SIRT1 in obese women | IRCT20090822002365N23 |
| To compare the effect of injection Denosumab in chronic kidney disease patients over tablet calcium and vitamin D supplementation in decreasing the risk of fracture | Fracture risk reduction with denosumab in chronic kidney disease stage 3-5 - NIL | CTRI/2023/11/059536 |
| Effects of vitamin D and calcium supplementation on bone mineral density among Thai MSM adolescents with pre-exposure prophylaxis | Effects of vitamin D and calcium supplementation on bone mineral density among Thai MSM adolescents with pre-exposure prophylaxis | TCTR20190624002 |
| Effect on pregnancy outcomes of vitamin D nutritional status during perinatal period | Effect on pregnancy outcomes of vitamin D nutritional status during perinatal period | ChiCTR1900024080 |
| Effect of Calcium and Vitamin D Supplementation With and Without Collagen Peptides in Postmenopausal Women With Osteopenia | Effect on Bone Biomarkers and Bone Mineral Density and Tolerability of Calcium and Vitamin D Supplementation With and Without Collagen Peptides in Postmenopausal Women With Osteopenia | NCT03999775 |
| Effect of low dose vitamin D on FGF23 levels in patients with non-dialysis-dependent chronic kidney disease | Effect of low dose vitamin D on FGF23 levels in patients with non-dialysis-dependent chronic kidney disease - Effect of low dose vitamin D on FGF23 levels in patients with non-dialysis-dependent chronic kidney disease | JPRN-UMIN000037181 |
| The effect of vitamin D3 intake and aerobic exercise on lipid profile, TSH and depression in obese women | The effect of 8 weeks of vitamin D3 intake and aerobic exercise on lipid profile, TSH and depression in obese women | IRCT20190504043472N1 |
| Efficacy and safety of vitamin D3 and calcium supplementation for non - infectious uveitis | Efficacy and safety of vitamin D3 and calcium supplementation for non - infectious uveitis | ChiCTR1900024174 |
| Evaluation the effect of vitamin D3 in improvement clinical parameters of patients with chronic periodontitis-clinical trial | Evaluation the effect of vitamin D3 in improvement clinical parameters of patients with chronic periodontitis-clinical trial | IRCT20221212056786N3 |
| Vitamin D Deficit in Women With Uterine Fibroids | Vitamin D Deficit in Women With Uterine Fibroids | NCT04030182 |
| The effect of vitamin D supplementation in treatment of patients with epilepsy | The effect of vitamin D supplementation on seizure frequency, mental health parameters, metabolic and genetic profiles in patients with epilepsy | IRCT20170420033551N5 |
| Effect of vitamin D on improvement of left ventricular ejection fraction in patients with systolic heart failure | Effect of vitamin D on improvement of left ventricular ejection fraction in patients with systolic heart failure | IRCT20190410043236N1 |
| Effect of Vitamin D in pregnant women | The effect of vitamin D in third trimester of pregnancy on some maternal metabolic and neonatal anthropometric index in nulliparous pregnant woman | IRCT20190618043927N1 |
| Vitamin D supplementation in patients with lifelong premature ejaculation | Vitamin D supplementation in patients with lifelong premature ejaculation - vitamin D and premature ejaculation | JPRN-UMIN000037091 |
| Effect of vitamin D supplementation in cigarette smokers | The effects of vitamin D supplementation on mental health parameters, oxidative stress and inflammatory biomarkers in cigarette smokers | IRCT20170420033551N7 |
| Effect of Vitamin D Oral Supplementation in Poly Csytic Ovarian Women Resistant to Clomiphene Citrate | Effect of Vitamin D Oral Supplementation in Poly Cystic Ovarian Women Resistant to Clomiphene Citrate | NCT04916925 |
| Study of vitamin D and health conditions in pregnant women with Gestational Diabetes | Study of vitamin D and perinatal outcomes in pregnant women with Gestational Diabetes:a controlled clinical trial | RBR-7qvtjk |
| Effect of vitamin D in enhanced recovery after brain surgery | Acute effect of single high-dose vitamin D3 and the chronic effect of normal levels of 25-OHD on perioperative complications and clinical outcomes in brain tumor surgery patients | IRCT20190126042496N1 |
| Vitamin D supplementation in chronic kidney disease in South Indians | Effect of Vitamin D replacement and influence of genetic factors in chronic kidney disease in South Indian population | CTRI/2019/07/020481 |
| Effects of n-3 fatty acid and vitamin D intake on non-alcoholic fatty liver disease: a randomized controlled trial | Effects of n-3 fatty acid and vitamin D intake on non-alcoholic fatty liver disease: a randomized controlled trial | ChiCTR1900024866 |
| The Effects of Vitamin D and Calcium Supplementation in People with Prediabetes | Effect and Mechanism of Vitamin D Intervention on Pre-diabetes Population in Rural Areas | ChiCTR1900024872 |
| Effects and mechanism of n-3 fatty acid and vitamin D intake on metabolic syndrome | Effects and mechanism of n-3 fatty acid and vitamin D intake on metabolic syndrome | ChiCTR1900024868 |
| The effect of taking calcium and vitamin D on the rate af recurrence and severity of benign paroxysmal positional vertigo | The effect of taking calcium and vitamin D on the rate af recurrence and severity of benign paroxysmal positional vertigo | IRCT20170505033824N1 |
| Evaluation of The Effect of Vitamin D Supplementation on Vitamin D Levels of Term and Preterm Neonates and Their Mothers | Evaluation of The Effect of Vitamin D Supplementation on Vitamin D Levels of Term and Preterm Neonates and Their Mothers | TCTR20190808002 |
| effect of folic acid and vitamin D in stroke | Clinical trial Comparison of the Effect of Folic Acid and Vitamin D Supplementation in the Prevention of Cerebrovascular Attacks in Patients Referred to Shahid Beheshti Hospital in 3 Months | IRCT20190305042937N1 |
| Evaluation of vitamin D deficiency treatment in patients with calcium kidney stones | Comparative study of the effects of hypovitaminosis D treatment with loading and maintenance methods on serum vitamin D status, 24-hour urine calcium, and serum and urine oxidative stress status in patients with calcium kidney stones | IRCT20160206026406N4 |
| Effect of aerobic training and vitamin D supplementation on liver Fat, liver enzymes and lipid profile | Effect of aerobic training and vitamin D supplementation on liver Fat, liver enzymes and lipid profile in elderly women with nonalcoholic fatty liver and vitamin D deficiency | IRCT20190423043359N1 |
| A Study to Assess the Effect of Vitamin D and Vitamin E on Menstrual Pain in Women with Primary Dysmenorrhoea | Effect of Vitamin D and E supplementation on premenstrual symptoms severity and pain relief in patients with primary dysmenorrhoea- An open label randomized controlled trial - NIL | CTRI/2026/02/102672 |
| The Study of Vitamin D Supplement-aid in the treatment of Helicobacter Pylori eradication | The Study of Vitamin D supplementation`s effect in the treatment of Helicobacter pylori eradication in patients with dyspepsia | IRCT20180922041089N2 |
| Assessing impact of vitamin D on kidney health | Evaluation of APOL1 Induction in Glomerular Parietal Epithelial Cells | CTRI/2019/02/017376 |
| Clinical Trial to study effect of Vitamin D3 levels in hair loss of more than 6 months duration | To Establish The Association of Vitamin D3 Levels With The Duration of Chronic Telogen Effluvium in Females - A Hospital based Case Control Study - nil | CTRI/2023/09/057924 |
| The effect of Vitamin D on the prevention of statin associated muscle complications | The effect of vitamin D replacement therapy on the incidence of statin associated muscle complications | IRCT20180513039645N1 |
| Assessment of Vitamin D Effectiveness on Asthma Treatment | Assessment of Vitamin D Injection Dose Adjustment on Vitamin D Deficient Asthmatic Patients Improvement and Treatment | IRCT20160813029327N14 |
| Vitamin D for people at risk of dementia | A randomised clinical trial of vitamin D to improve cognition in people at risk of dementia | ISRCTN79265514 |
| Effect of vitamin D3 versus not receiving vitamin D3 on the inflammation and complications after hidden third molar surgery in mandible in patients with vitamin D3 deficiency | Effect of vitamin D3 versus not receiving vitamin D3 on the inflammation and complications after hidden third molar surgery in mandible in patients with vitamin D3 deficiency: a randomized clinical trial | IRCT20120215009014N227 |
| The Effect of Vitamin D3 on Postoperative Pain in Patients Undergoing Craniotomy | The Effect of Single High Dose of Vitamin D3 on Short-term Postoperative Pain in Patients Under Craniotomy for Brain Tumor Resection | NCT03614403 |
| Effect of vitamin D on pancreas and controlling of T1DM | Effect of vitamin D on pancreatic function and controlling of type 1 diabetes mellitus | IRCT20180228038900N2 |
| The role of vitamin D in the course of asthma | Evaluation of the vitamin D supplementation effect on the course of asthma | IRCT20171222037986N1 |
| Role of Vitamin D in Prevention of Dengue Haemorrhagic Fever and Dengue Shock Syndrome | Efficacy, Safety and Dose Response of Vitamin D in Prevention of Dengue Haemorrhagic Fever and Dengue Shock Syndrome- A Phase 2 Open-label Randomized Controlled Trial | NCT06071481 |
| The effect of Vitamin D on early-life wheezing after RS virus infection: A randomized, double-blinded placebo-controlled study | The effect of Vitamin D on early-life wheezing after RS virus infection: A randomized, double-blinded placebo-controlled study - The effect of Vitamin D on early-life wheezing after RS virus infection: A randomized, double-blinded placebo-controlled study | JPRN-UMIN000033600 |
| The Effect of Platelet-rich Fibrin and Vitamin D? Injections on Canine Retraction | The Effect of Platelet-rich Fibrin and Vitamin D? Injections on Canine Retraction: A Randomized Controlled Clinical Trial | NCT06071455 |
| Vitamin D action in the treatment of Depression and reduction of Cardiovascular Risk | Vitamin D Action in Depression and Cardiovascular Risk in Outpatient Treatment | RBR-6yj8sj |
| Effect of vitamin D supplementation and resistance training on muscle, bone, and inflammatory parameters in maintenance hemodialysis patients | Effect of vitamin D supplementation and resistance training on body composition, physical capacity, inflammatory parameters and bone mineral metabolism in maintenance hemodialysis patients: a randomized controlled trial | RBR-3j787t |
| The use of vitamin D supplementation and risk of hypercalciuria | evaluation of effect of Vitamin D supplementation on hypercalciuria in vitamin D deficient recurrent stone former patients | IRCT20180108038262N2 |
| Correlation Between Maternal Vitamin D Level And Preterm Birth | Correlation Between Maternal Vitamin D Level And Preterm Birth | NCT03638037 |
| Effect of vitamin D supplementation in treatment of diabetic hemodialysis patients | The effects of vitamin D supplementation compared with the placebo on gene expression related to insulin and lipid in diabetic hemodialysis patients | IRCT20180525039828N1 |
| Effect of combined probiotic and vitamin D supplementation in the treatment of polycystic ovary syndrome | The effects of combined probiotic and vitamin D supplementation on hormonal profiles, inflammatory factors and oxidative stress biomarkers in women with polycystic ovary syndrome | IRCT20170513033941N37 |
| Study of Vitamin D and Statins on Vascular Function in hypertensive patients | Study of Vitamin D and 3-Hidroximetilglutaril CoA redutase inhibitors administration on Endothelial Function and Renin-Angiotensin-Aldosterone system in patients with Hypertension: a double-blind placebo-controlled study | RBR-2zx53z |
| Effects of Biofunctional Orange Juice on Cardiometabolic Risk Markers | Effects of Orange Juice Enriched With Vitamin D3 and Encapsulated Probiotics in High Cardiometabolic Risk Individuals | NCT06114576 |
| The effect of vitamin D supplementation on uterine myoma | The effect of vitamin D supplementation on uterine myoma of women attending to hospital | IRCT20180610040046N1 |
| Effect of vitamin D supplementation on the clinical outcome of assisted reproductive technology in infertile patients with endometriosis | Effect of vitamin D supplementation on the clinical outcome of assisted reproductive technology in infertile patients with endometriosis | ChiCTR2300067284 |
| Vitamin D and clinical outcomes of children with sepsis | Effect of Vitamin D administration on clinical outcomes of children with sepsis | ChiCTR1800018154 |
| Vitamin D Replacement After Kidney Transplant | Vitamin D Replacement After Kidney Transplant | NCT00748618 |
| Age-related ability to synthesise vitamin D | Age-related ability to synthesise vitamin D in the skin on exposure to sunlight | ISRCTN72674753 |
| Standardized diagnosis and treatment in vitamin D deficiency | Standardized diagnosis and treatment in vitamin D deficiency | ChiCTR1800018283 |
| Vitamin D supplementation to prevent acute respiratory infections among Indigenous children in the Northern Territory: a randomised controlled trial | Vitamin D supplementation to prevent acute respiratory infections among Indigenous children in the Northern Territory: a randomised controlled trial | ACTRN12618001174279 |
| A weekly dose comparison of 5000 units of vitamin D supplementation with a daily dose of 4,000 units in patients with chronic leukemia | Comparing theVitamin-D level treatment with 50000IU weekly Vitamin D and 4000IU daily Vitamin-D in Chronic lymphocytic leukemia patients | IRCT20180912041010N1 |
| The effect of interactive of aquatic exercise and Vitamin D supplementation on some inflammatory Cytokines, hs-CRP and Vitamin D levels in Children with Autism Spectrum Disorders | The effect of aquatic exercise, Vitamin D supplementation and interactive of aquatic exercise and Vitamin D supplementation on serum level of IL-1B, IL-6, IL-10, IL-1ra, TNF-a, hs-CRP and Vitamin D in Children with Autism Spectrum Disorders | IRCT20180503039517N1 |
| Evaluating the effectiveness of oral stripe and perl vitamin D in vitamin D deficiency | comparing the effect of oral stripe and vitamin D3 pearl, in patiens with vitamin D deficiency in single blind clinical trial | IRCT20180408039235N1 |
| Comparison of the effect of Zinc and Vitamin D supplementation on Acute Bronchiolitis | Comparison of the effect of Zinc and Vitamin D supplementation on Acute Bronchiolitis in 2 to 23 months old children, a clinical trial | IRCT20131217015835N7 |
| Effect of Vitamin D3 Supplementation in Children From 12 to 30 Months of Age. | Effect of Vitamin D3 Supplementation Over 25-hydroxivitamin D (25-OH-D) Status in Children From 12-30 Months of Age: Randomized Clinical Trial | NCT03544671 |
| Study to assess the effects of vitamin D on tumor tissue in urinary bladder cancer | Pilot study of Vitamin D biological effects in patients with resectable urinary tract urothelial carcinoma. | EUCTR2017-000695-28-ES |
| Effect of 1000 and 50,000 IU vitamin D on serum calcium and vitamin D | Effect of 1000 and 50000 IU vitamin D supplement on serum calcium and vitamin D in adults with vitamin D deficiency | IRCT20180214038730N1 |
| Evaluation of oral and injection vitamin D3 on reducing statin-induced myopathy | Comparison between the effect of oral and intravenous vitamin D3 on statin-induced myopathy level :Randomized Controlled Trial | IRCT20180422039379N1 |
| Relation among calcium and vitamin D intake during pregnancy with inflammation in the placenta and clinical parameters of the newborn of women with preeclampsia | The relationship of calcium and vitamin D intake with the placental inflammatory parameters and clinical state in newborn of women with Preeclampsia | RBR-3pkcb7 |
| Effects of vitamin D on athletes | Effects of vitamin D supplementation on serum levels of adipose tissue browning endocrine regulators, anabolic hormone and exercise performance in male athletes | IRCT20131117015424N3 |
| Association Between Vitamin D and the Development of Uterine Fibroids | Association Between Vitamin D and the Development of Uterine Fibroids | NCT03584529 |
| Therapeutic effect of iron with vitamin E, vitamin D, and omega-3 supplements in patients with anemia | Study and comparison of the therapeutic effect of iron supplementation with vitamin E, vitamin D, and omega-3 on ferritin levels in three separate groups of patients with iron deficiency anemia. | IRCT20250922067319N1 |
| The effect of vitamin D supplementation on premenstrual syndrome(PMS) | The effect of vitamin D supplementation on inflammation and antioxidant markers and premenstrual syndrome(PMS) symptoms in vitamin D- deficient students | IRCT20180525039822N1 |
| Effects of delta-tocotrienol, resveratrol and vitamin D supplementation mixture on biochemical markers in diabetic patients | Synergistic Effects of delta-Tocotrienol, Resveratrol and Vitamin D Supplementation on Modulation of Biochemical Markers, Cytokines and miRNAs in patients of type 2 diabetes mellitus | SLCTR/2018/019 |
| vitamin D3 and flaxseed oil supplementation effects in type 2 diabetes | Investigation of the effect of high-dose vitamin D3 with alpha linoleic acid (flaxseed oil) supplementation on serum indices of inflammation and oxidative stress in the elderly with type 2 diabetes. | IRCT20161022030424N8 |
| Vitamin D and Immunity: Photosynthesis Versus Supplementation | Vitamin D and Immunity: Photosynthesis Versus Supplementation | NCT03609970 |
| Vitamin D3 Combined With Strengthening Exercise for Lateral Epicondylitis of Elbow | Effect of Vitamin D3 Combined With Extensor Muscle Strengthening Exercise in Lateral Epicondylitis of Elbow: a Randomized Controlled Trial | NCT06055491 |
| A randomized controlled clinical trial to compare the efficacy of Vitamin D vs placebo to reduce high blood sugar during pregnancy | A Randomized Control Trial comparing vitamin D supplementation versus placebo on glycemic control in gestational diabetes mellitus | SLCTR/2018/020 |
| Effect of vitamin D on duration of mechanical ventilation | Evaluation of vitamin D effect on duration of mechanical ventilation and Total Antioxidant Capacity (TAC) in ICU admitted patients | IRCT20120703010178N16 |
| effect of vitamin D on athletes | Effect of vitamin D supplementation on inflammatory markers, muscle damage indices, performance and body composition in athletes | IRCT20171213037856N1 |
| to study the effect of calcium and vitamin D supplementation in children with leukemia | To study the effect of oral calcium and vitamin D3 supplementation on bone mineral density in children with acute lymphoblastic leukemia | IRCT20150119020715N7 |
| Study on the Correlation of Free Vitamin d With BMD and Fracture | Free Vitamin D Correlate Better With BMD and Fracture Than Total Serum Vitamin D? | NCT03605173 |
| Prognostic Value of Vitamin D Levels in Egyptian Females With Breast Cancer | Prognostic Value of Vitamin D Levels in Egyptian Females With Breast Cancer | NCT03594214 |
| Effect of single high-dose or daily low-dose vitamin D on muscle strength in older women | The effects of single high-dose or daily low-dosage oral colecalciferol treatment on vitamin D levels and muscle strength in postmenopausal women | ISRCTN14226530 |
| The Effect of Vitamin D and Exercise on Balance in Postmenopausal Women | The Effect of Vitamin D and Exercise on Balance in Postmenopausal Women | NCT03608488 |
| Evaluating the effects of vitamin D on migraine headache and its possible associated factors | Evaluating the effects of viamin D on CGRP levels, inflammatory markers, Treg/Th17 balance and episodic migraine characteristics in Adult migraineurs | IRCT20151128025267N6 |
| Effect of Vitamin D on Grip Power in Menopausal Women | Effect of Vitamin D on Grip Power in Menopausal Women with Distal Radius Fractures | IRCT20160830029603N7 |
| The effectiveness of vitamin D deficiency in the treatment of patients with erectile dysfunction | The effectiveness of vitamin D deficiency in the treatment of patients with erectile dysfunction | IRCT20180930041188N1 |
| Vitamin D and depression | Evaluation of vitamin D supplementation effects on serum 25(OH)D3, PTH, pro-inflammatory biomarkers and neurotransmitters involved in depression, and depression status in depressive patients | IRCT20170926036425N1 |
| The Effect of Vitamin D Supplementation on Dental Implant Osseointegration: A Randomized Controlled Trial | The Effect of Vitamin D Supplementation on Dental Implant Osseointegration: A Randomized Controlled Trial | NCT06274216 |
| The Vaccination Infant Supplementation (VISS) Study - assessing the effect of vitamin D and probiotic supplementation around vaccination on infant's temperature and sleep pattern. | Randomised placebo-controlled trial investigating the effect of 8 weeks supplementation with probiotics and vitamin D around routine childhood immunisation on infant's ear temperature, growth, and sleeping pattern in 4-24 month-old infants. | ACTRN12618001992291 |
| Effect of serum vitamin D level and vitamin D receptor on the efficacy of pegylated interferon in low-level HBsAg patients with chronic hepatitis B | Effect of serum vitamin D level and vitamin D receptor on the efficacy of pegylated interferon in low-level HBsAg patients with chronic hepatitis B | ChiCTR1800020108 |
| Interaction Effects of Vitamin D Supplementation and Aerobic Exercises on Balance and Physical Performance in Children With Down Syndrome | Interaction Effects of Vitamin D Supplementation and Aerobic Exercises on Balance and Physical Performance in Children With Down Syndrome | NCT03783338 |
| Investigation for Risk Factors of Membrane Nephropathy in Guangxi and Study for Intervention of Vitamin D | Disease diagnosis and treatment technology and standardized research and development and application demonstration | ChiCTR1800020241 |
| Investigation and intervention for vitamin D deficiency in children | The effect and possible mechanism for vitamin D deficiency in youth | ChiCTR1800020294 |
| Different Doses of Vitamin D and T Regulatory Cells in Preterm Infants | A Randomized Controlled Trial on the Effect of 400 vs. 800 IU of Vitamin D on T Regulatory Cells in Preterm Infants | NCT03793309 |
| Can Vitamin D reduce heart damage in cardiac surgery | association between vitamin D administration and pathological feature of cardiac cell in patients with low Vitamin D who are candidates for coronary artery bypass graft(CABG) surgery for the first time | IRCT20180118038423N1 |
| Effect of combined probiotic and vitamin D supplementation in the treatment of polycystic ovary syndrome | The effects of combined probiotic and vitamin D supplementation on metabolic profiles in women with polycystic ovary syndrome | IRCT20170513033941N43 |
| Effect of vitamin D and omega 3 fatty acids co-supplementation on colorectal cancer | Effect of vitamin D, omega 3 fatty acids supplementation and co-supplementation of them on liver, inflammatory biomarkers, and oxidative stress in patients with colorectal cancer | IRCT20090822002365N22 |
| Clinical study for the effect of vitamin D deficiency on patients with hepatitis B | Clinical study for the effect of vitamin D deficiency on patients with hepatitis B | ChiCTR1800020451 |
| A prospective randomized controlled trial for exercise and vitamin D in preventing fractures in elderly type 2 diabetic patients | A prospective randomized controlled trial for exercise and vitamin D in preventing fractures in elderly type 2 diabetic patients | ChiCTR1900020490 |
| DPOWER Study | Finding the effect of Vitamin D supplementation on coronary artery diseases in type 2 diabetes: Focusing on glycemic control, cardiac function and immunomodulation. | CTRI/2019/01/016921 |
| Vitamin D Treatment of Diabetic Patients With Foot Ulcers | Systemic Vitamin D Treatment of Diabetic Patients With Foot Ulcers: a Clinical Controlled Investigation of the Effect on Healing | NCT03813927 |
| The Effect Of Vitamin D Replacement Therapy On Serum Leptin And Follicular Growth Pattern In Women With Resistant Polycystic Ovary | The Effect Of Vitamin D Replacement Therapy On Serum Leptin And Follicular Growth Pattern In Women With Resistant Polycystic Ovarian Syndrome | NCT03806036 |
| Challenges in Achieving Adequate Vitamin D Status in the Adult Population/ Part 2 | Challenges in Achieving Adequate Vitamin D Status in the Adult Population - Part 2 | NCT03810261 |
| Effect of receiving vitamin D versus not receiving on clinical signs in asthmatic children with vitamin D deficiency | Effect of receiving vitamin D versus not receiving on clinical signs in asthmatic children with vitamin D deficiency: a randomized clinical trial | IRCT20120215009014N258 |
| Mobilising vitamin D sequestered in adipose tissue in humans with Exercise (VitaDEx) | Mobilising vitamin D sequestered in adipose tissue in humans with Exercise (VitaDEx) | ISRCTN29195046 |
| The impact of vitamin d level on in vitro fertilisation outcomes | The association of vitamin d status with clinical pregnancy and live birth outcomes in women undergoing in vitro fertilisation | ACTRN12619000083190 |
| Effect of Vitamin D Supplementation on Testosterone Level in Women With Polycystic Ovary Syndrome | Effect of Vitamin D Supplementation on Testosterone Level in Women With Polycystic Ovary Syndrome: A Randomized, Double-blind, Placebo-controlled Trial | NCT06101147 |
| Usefulness of Vitamin D in Pregnant Diabetics | Effect of Vitamin D supplementation among women with low Vitamin D levels in Gestational Diabetes Mellitus | CTRI/2019/01/017185 |
| Study the effect of vitamin D supplements on type 2 diabetes | The effect of vitamin D supplements in diabetic retinopathy in type 2 diabetic patients | IRCT20180922041089N1 |
| The effect of snacks fortified with vitamin D, iron, zinc and L-arginine on malnutrition | Evaluating the effect of snack fortified with vitamin D, iron, zinc and arginine compared with conventional snack on the anthropometric indices of malnourished children | IRCT20181204041843N1 |
| Prevalence of vitamin D deficiency in patients with inflammatory bowel disease | Prevalence of vitamin D deficiency in patients with inflammatory bowel disease - VITAceD | DRKS00011185 |
| Impact of Vitamin D on Acute Ischemic Stroke Prognosis | Impact of Vitamin D on Acute Ischemic Stroke Prognosis | NCT03819452 |
| Vitamin D and Human Sperm DNA Fragmentation | Effects of Vitamin D on Human Sperm DNA Fragmentation | NCT03829943 |
| Can vitamin D reduce heart muscle damage after bypass surgery? | Association between vitamin D administration and cardiac cell pathology in patients undergoing CABG surgery | ISRCTN44896820 |
| Effectiveness of Synbiotic and Vitamin D in Atopic Dermatitis | Study of the effectiveness of Synbiotic and Vitamin D on the Severity of Atopic Dermatitis in 1 to 24 Months Old Children | IRCT20180626040248N1 |
| Effect of Vitamin D on Sexual Function and Depression of Women | Effect of Vitamin D Supplementation on Sexual Function and Depression Symptoms of Women with Vitamin D Deficiency: A Randomized Controlled Trial | IRCT20100414003706N33 |
| Evaluation of vitamin D3 levels and morphotic parameters of blood in prematurely born children at six years of age | Evaluation of vitamin D3 levels and morphotic parameters of blood in prematurely born children at six years of age | ACTRN12618001948280 |
| Effect of vitamin D supplementation on fasting plasma glucose and insulin resistance indices in gestational diabetes mellitus | Comparison of the effect of vitamin D supplementation on fasting plasma glucose and insulin resistance indices in pregnant women with gestational diabetes mellitus with a group of gestational diabetic pregnant women who do not receive vitamin D supplement | IRCT20150607022585N3 |
| The effect of vitamin D in the treatment of diabetic foot ulcers | Evaluation of the efficacy of vitamin D in the treatment of diabetic foot ulcers | IRCT20100102002954N12 |
| Vitamin D Supplementation and WBV in Inflammatory Markers, Strength and Body Composition in Old Patients With COPD | Efficacy of Vitamin D Supplementation Added to WBV Chronic Protocol in Inflammatory Markers, Peripheral and Respiratory Strength and Body Composition in Old Patients With COPD | NCT03684330 |
| Fortification and supplementation effect on vitamin D levels | Comparison of the effects of vitamin D fortified oil and vitamin D supplement in improving vitamin D status and bone turnover factors among 18-30 healthy persons. | IRCT20180708040401N1 |
| Effect of Vitamin D Intake in Pregnancy to Prevent Recurrence of Gestational Diabetes | Effect of Vitamin D Intake in Pregnancy to Prevent Recurrence of Gestational Diabetes | NCT03701087 |
| The effect of phototherapy on serum vitamin D level in neonatal hyperbilirubinemia | The effect of phototherapy on serum 25(OH) vitamin D level in neonatal hyperbilirubinemia | IRCT20180925041133N1 |
| Study to compare improvement in skin and side effects of two oral drugs (Vitamin D and acitretin) in patients of congenital non syndromic ichthyosis | A pilot study to assess the effectiveness and safety of oral vitmain D versus low dose oral acitretin in congenital non syndromic ichthyosis | CTRI/2018/10/015978 |
| Effect of vitamin D supplements on sexual function | Effect of vitamin D on sexual function in postmenopausal women | IRCT20180704040346N1 |
| Locally Injected Vit D as a Non-surgical Modality for Periodontal Regeneration of Infrabony Defects | Locally Injected Vitamin D as a Non-surgical Modality for Periodontal Regeneration of Infrabony Defects: Prospective Study | NCT03716765 |
| Effect of Vitamin D Supplementation on Balance in CKD | Effect of Vitamin D Supplementation on Balance in Patients With Chronic Kidney Disease | NCT03710161 |
| Effects of different dosages of vitamin D3 on anthropometric indices, metabolic, bone, and vascular parameters and body composition | Effects of different dosages of vitamin D3 on anthropometric indices, metabolic, bone, and vascular parameters and body composition in overweight or obese children and adolescents | IRCT20180805040703N1 |
| Can Vitamin D Supplementation in People With Crohn's Disease Improve Symptoms as an Adjunct Therapy? | Can Vitamin D Supplementation in People With Crohn's Disease Improve Symptoms as an Adjunct Therapy? D-CODE Feasibility Randomised Controlled Trial | NCT03718182 |
| Comparison the effects of different amounts of vitamin D supplementation on calcidiol, Anthropocentric status and body composition in lactation women with body mass index 25 and higher and their infants growth and frequency of visiting a doctor. | Comparison the effects of different amounts of vitamin D supplementation on calcidiol, Anthropocentric status and body composition in lactation women with body mass index 25 and higher and their infants growth and frequency of visiting a doctor. | IRCT20140413017254N6 |
| Maternal vitamin D levels on modulation of maternal and newborn inflammation | Vitamin D status and repercussion in the modulation of NFkB pathway in placenta and in neonatal clinical and anthropometric parameters | RBR-9ptq49 |
| Effect of vitamin D supplementation for the recurrence of idiopathic benign paroxysmal positional vertigo | Effect of vitamin D supplementation for the recurrence of idiopathic benign paroxysmal positional vertigo: randomized, double-blind, placebo-controlled clinical trial. | KCT0003320 |
| Vitamin D Supplementation and Effects on Mood in Emergency Medicine Residents | Correlation of Vitamin D Supplementation in Emergency Medicine Residents and Seasonal Mood Symptoms | NCT03739671 |
| Prevention of allergic march by vitamin D supplementation during infancy | Prevention of allergic march by vitamin D supplementation during infancy - Vitamin D mediated Prevention of Allergic march in Chiba (D-PAC) | JPRN-UMIN000034864 |
| The effect of Vitamin D on Platelet elevation | The effect of Vitamin D on platelet elevation in patients with Idioprotective Thrombocytopenic Purpura (ITP) | IRCT20181003041223N1 |
| Nutraceuticals Versus Usual Care in the Prevention or Reduction of CIPN in Patients Treated With Docetaxel as Neoadjuvant/Adjuvant Breast Cancer Therapy | Protocol Comparing a Nutraceutical Formulation Consisting of Omega-3 Fatty Acids, Vitamin D, and Vitamins B6 Plus B12 Versus No Treatment in the Prevention or Reduction of Chemotherapy Induced Peripheral Neuropathy (CIPN) in Patients Treated With Docetaxel as Neoadjuvant/Adjuvant Breast Cancer Therapy | NCT02795572 |
| The Relationship Between VDR Gene Polymorphism and Children's Physical and Intellectual Development | Multi-Center Clinical Study on the Relationship Between Vitamin D Receptor Gene Polymorphism and Children's Physical and Intellectual Development | NCT03742310 |
| The effect of vitamin D3 supplementation on glycemic indices lipid profile and liver enzymes in cirrhotic patients | The effect of vitamin D3 supplementation on glycemic indices lipid profile and liver enzymes in cirrhotic patients | IRCT20140502017522N2 |
| Role of Vitamin-D supplementation in preventing premature birth | Associations between maternal 25-hydroxyvitaminD levels and prematurity, and effectiveness ofmaternal Vitamin D supplementation on preventionof prematurity and metabolic bone disease ofprematurity - ADMIRE | CTRI/2018/11/016406 |
| Vitamin D supplementation | Vitamin D status and Vitamin D Supplementation in asthmatic children | PACTR201811682685226 |
| Impact of Vitamin D3 Administration on Cardiac Autonomic Tone in Asthma Chronic Obstructive Pulmonary Disease(COPD) Overlap Patients | Impact of Vitamin D3 Administration on Cardiac Autonomic Tone in Asthma COPD Overlap(ACO) Patients: A Blinded Randomized Control Trial | NCT03773809 |
| Epigenetic Memory of Vitamin D Supplementation | Investigating the Mechanisms of Epigenetic Memory at the Example of the Responsiveness of Human Immune Cells to Vitamin D | NCT06104111 |
| Vitamin D Supplementation in Patients With Depression | Evaluation of Vitamin D Supplementation Effects on Serum 25(OH)D3, PTH, Pro-inflammatory Biomarkers and Neurotransmitters Involved in Depression, and Depression Status in Depressive Patients | NCT03766074 |
| Omega-3 and Vitamin D Supplements in Childhood T1D | Omega 3 Long Chain Polyunsaturated Fatty Acids, Enriched Mediterranean Diet and Vitamin D Supplementation in Childhood Type 1 Diabetes: One Year Case-cohort Study | NCT03911843 |
| The effect of vitamin D in autoimmune hypothyroid patients. | The effect of vitamin D Supplementation on the concentration & their gene expression & their transcription factors secreted by CD4 + T lymphocytes in hashimoto`s patients. | IRCT2016110130644N1 |
| Cholecalciferol Supplementation, Muscle Strength | Skeletal Muscle Strength Including Its Energy Metabolism, Bone Mineral Homeostasis and Th1/Th2 Cytokines Expression in Asian Indians With Chronic Hypovitaminosis D Before and After Oral Cholecalciferol Supplementation | NCT00682214 |
| Impact of 25-hydroxy vitamin D deficiency and its correction on mineral and bone disorde among hemodialysis patients - VitaDial | Impact of 25-hydroxy vitamin D deficiency and its correction on mineral and bone disorde among hemodialysis patients - VitaDial | EUCTR2008-002387-33-BE |
| Cholecalciferol for Vitamin D in Adult Cystic Fibrosis (CF) Patients | Randomized Placebo-Controlled Trial of Cholecalciferol for Vitamin D Deficiency in Adults With Cystic Fibrosis | NCT00685971 |
| A Study to Test the Effect of MK0217A on Vitamin D Inadequacy in Postmenopausal Women With Osteoporosis (0217A-262) | A Phase III (Phase V Program), Open-Label, Randomized, Referred-Care-Controlled, Clinical Trial to Evaluate the Efficacy and Safety of MK -0217A/Alendronate Sodium-70 mg/Vitamin D3 5600 I.U. Combination Tablet on Vitamin D Inadequacy in the Treatment of Osteoporosis in Postmenopausal Women | NCT00692913 |
| The Effect of Vitamin D and Calcium on Bone in Pediatric HIV | The Effect of Vitamin D and Calcium on Bone in Pediatric HIV | NCT00724178 |
| VITA-D: Cholecalciferol substitution in vitamin D deficient kidney transplant recipients: A randomized, placebo-controlled study to evaluate the posttransplant outcome - VITA-D | VITA-D: Cholecalciferol substitution in vitamin D deficient kidney transplant recipients: A randomized, placebo-controlled study to evaluate the posttransplant outcome - VITA-D | EUCTR2008-002807-21-AT |
| The Role of Vitamin D in Immune Function in Patients With Chronic Kidney Disease (CKD) Stages 3 and 4. | The Role of Vitamin D in Immune Function in Patients With CKD Stages 3 and 4. | NCT00749736 |
| Vitamin D3 for the Treatment of Low Vitamin D in Cystic Fibrosis | Vitamin D and Its Non-Classic Roles in Cystic Fibrosis | NCT00762918 |
| Vitamin D for the Prevention of Diabetes Type 2 | Prevention of Type 2 Diabetes With Vitamin D Supplementation in Subjects With Reduced Glucose Tolerance Detected in the Tromso Study 2007/2008 | NCT00685594 |
| Role of Vitamin D as an added therapy for type 1 Diabetes Mellitus patients | Role of oral Cholecalciferol as an adjunctive therapy in Type 1 Diabetes Mellitus: A Randomized controlled trial | CTRI/2014/07/004739 |
| Vitamin D, Glucose Control and Insulin Sensitivity in African-Americans | Vitamin D, Glucose Control and Insulin Sensitivity in African-Americans | NCT00784511 |
| Can Vitamin D Supplementation Prevent Bone Loss in Persons With Multiple Sclerosis | Can Vitamin D Supplementation Prevent Bone Loss in Persons With MS? A Randomised, Placebo-controlled, Single-centre Study | NCT00785473 |
| Vitamin D in Preschoolers With Viral-induced Asthma | Vitamin D In the Prevention of Viral-induced Asthma of Preschoolers: a Randomised Controlled Trial (RCT)- (DIVA) | NCT02197702 |
| Vitamin D AND Glucose Handling Evaluated by Glucose Clamp | Vitamin D AND Cardiovascular Disease | NCT00809744 |
| Metabolic Effects of Vitamin D in Patients With Type 2 Diabetes | Metabolic Effects of Vitamin D in Patients With Type 2 Diabetes - a Randomized Controlled Trial | NCT00812578 |
| Adjuvant treatment with vitamin D in tuberculosis | Assess the effectiveness of vitamin D in the treatment of pulmonary tuberculosis | IRCT201407029855N5 |
| Can Calcium and Vitamin D reduce diabetes risk in people at high risk? | Impact of vitamin D and calcium supplementation on the metabolic profile of glucose intolerant and vitamin D deficient obese subjects: a double blind, randomised and controlled trial | ACTRN12609000043235 |
| Effect of cholecalciferol on the systolic blood pressure in hypertensive, vitamine D insufficient patients. | Effect of cholecalciferol on the systolic blood pressure in hypertensive, vitamine D insufficient patients. - Vitamin-D-bloodpressure-effect in Vit D-insufficient+hypertensive patients | NL-OMON39286 |
| Vitamin D in Postmenopausal Women at High Risk for Breast Cancer | Effects of High-Dose Vitamin D on Circulating Vitamin D Levels and Breast Density in Postmenopausal Women at High Risk for Breast Cancer Development | NCT00859651 |
| Vitamin D Supplement in Preventing Colon Cancer in African Americans With Colon Polyps | Vitamin D Intervention For Colon Cancer Prevention In African-Americans-A Pilot Study | NCT00870961 |
| Can high-dose vitamin D supplementation reduce blood pressure and markers of cardiovascular risk in older people with isolated systolic hypertension? - Vitamin D in ISH | Can high-dose vitamin D supplementation reduce blood pressure and markers of cardiovascular risk in older people with isolated systolic hypertension? - Vitamin D in ISH | EUCTR2008-004534-24-GB |
| Effect of Oral Daily Supplementation With 400 IU Vs 200 IU of Vitamin D in Term Healthy Neonates | Effect Of Oral Daily Supplementation With 400 IU Vs 200 IU Of Vitamin D In Term Healthy Newborns: A Randomised Control Trial | NCT02186028 |
| Effect of Vitamin D Treatment in Primary Hyperparathyroidism | Effect of Vitamin D Treatment in Primary Hyperparathyroidism | NCT00674154 |
| Einfluss einer Vitamin D-Substitution auf die Insulinresistenz, die Stoffwechseleinstellung und die Lymphozytenfunktion bei Patienten mit Typ 2 Diabetes mellitus | Einfluss einer Vitamin D-Substitution auf die Insulinresistenz, die Stoffwechseleinstellung und die Lymphozytenfunktion bei Patienten mit Typ 2 Diabetes mellitus | EUCTR2006-006180-23-DE |
| Cholecalciferol and Calcium Carbonate in Treating Patients With Colon Cancer That Has Been Removed by Surgery | A Pilot Study of Low and High Dose Vitamin Cholecalciferol (D3) With Pharmacokinetic and Pharmacodynamic Correlates in Patients With Resected Colon Cancer | NCT00470353 |
| The Pharmacokinetics of a Single Large Dose of Vitamin D3 | The Pharmacokinetics of a Single Large Dose of Vitamin D3 | NCT00473239 |
| A study to compare the effectiveness and safety of an oral low dose and megadose of cholecalciferol treatment in participants with vitamin D deficiency - a real-life comparison pilot study. | A study to compare the effectiveness and safety of an oral low dose and a megadose vitamin D treatment regimens - a real-life comparison pilot study. | ACTRN12607000338460 |
| Pulmonary Tuberculosis and Vitamin D | Role of Oral Vitamin D as an Adjunct Therapy in Category I Pulmonary Tuberculosis Along With Assessment of Immunological Parameters. (Double-blind, Randomized, Placebo-Controlled, Clinical Trial) | NCT00507000 |
| Effect of Vitamin D in prevention of Cardiac Remodeling | Effect of Vitamin D in prevention of LV remodeling in Patients with STEMI that undergo Primary PCI | IRCT201212288698N6 |
| The Role of Vitamin D in Female Reproductive Tract Immunity | The Role of Vitamin D in Female Reproductive Tract Immunity | NCT02186535 |
| Effects of Oral Cholecalciferol (Vitamin D3) on Bone Health, Neuromuscular Function, and Quality of Life in Adults With Chronic Kidney Disease | Effects of Oral Cholecalciferol (Vitamin D3) on Bone Health, Neuromuscular Function, and Quality of Life in Adults With Chronic Kidney Disease | NCT00511225 |
| Vitamin D in Treating Patients With Prostate Cancer | Study of Serum 25(OH) D3 Level Variability in Response to Different Doses of Oral Vitamin D Supplementation in Prostate Cancer Patients | NCT00524680 |
| A Double-Blind Randomised Placebo-Controlled Trial of Vitamin D Supplements for Pregnant Women with Low Levels of Vitamin D in Early Pregnancy - MAVIDOS | A Double-Blind Randomised Placebo-Controlled Trial of Vitamin D Supplements for Pregnant Women with Low Levels of Vitamin D in Early Pregnancy - MAVIDOS | EUCTR2007-001716-23-GB |
| Tillskott av vitamin D efter framgångsrik operation förprimär hyperparatyreoidism (pHPT) - prospektiv randomiserad dubbelblind studie | Tillskott av vitamin D efter framgångsrik operation förprimär hyperparatyreoidism (pHPT) - prospektiv randomiserad dubbelblind studie | EUCTR2007-003691-19-SE |
| DNA Changes That Affect Vitamin D Metabolism in Patients With Colorectal Cancer Receiving Vitamin D Supplements | Identification of 24-Hydroxylase Polymorphisms and Splicing Variants That Modulate Vitamin D Oxidative Metabolism and Serum Pharmacokinetics in Patients With Colorectal Cancer on Cholecalciferol Therapy | NCT00550563 |
| Randomized Controlled Trial of Vitamin D3 in Diabetic Kidney Disease | Randomized Controlled Trial of Vitamin D3 in Diabetic Kidney Disease | NCT00552409 |
| Vitamin D therapy to reduce cardiovascular risk in Type 2 diabetes – the next steps | Vitamin D therapy to reduce cardiovascular risk in Type 2 diabetes – the next steps | EUCTR2007-003767-51-GB |
| Supplementation With Vitamin D, Calcium or Both on Calcium Absorption and Bone Mineral Content in Children With JRA | Effect of Supplementation With 2000 International Units (IU) Vitamin D, 1gm Calcium or Both on Calcium Absorption and Bone Mineralization in Children With Juvenile Rheumatoid Arthritis | NCT00570934 |
| Vitamin D3 Supplementation in Participants Diagnosed With Early-Stage Prostate Cancer Who Decide to Undergo Active Surveillance Treatment Regimen. | Vitamin D and Prostate Cancer | NCT01045109 |
| Vitamin D suppletion and aspecific musculo-skeletal disorders | Vitamin D suppletion and aspecific musculo-skeletal disorders - - | NL-OMON33615 |
| 4-Week Study to Assess the Effect of Alendronate and Vitamin D3 Once Weekly on Fractional Calcium Absorption in Postmenopausal Osteoporotic Women (0217A-230) | A Double-Blind, Randomized, Placebo-Controlled, Multicenter 4-Week Study to Assess the Effect of Alendronate 70 mg and Vitamin D3 2800 IU Once Weekly on Fractional Calcium Absorption in Postmenopausal Osteoporotic Women | NCT00641771 |
| Trial to evaluate the safety and diabetes status in patients with recent-onset Type 1 diabetes by giving GAD-antigen (Diamyd®) therapy into lymph NODEs in combination with an oral Vitamin D regimen | Open Label Pilot Trial in patients with recent-onset T1D to evaluate the safety, diabetes status and immune response of GAD-antigen (Diamyd®) therapy administered into lymph nodes in combination with an oral vitamin D regimen - DIAGNODE-1 | EUCTR2014-001417-79-SE |
| Phase III (Phase V Program), Open-Label, Randomized, Referred-Care-Controlled, Clinical Trial to Evaluate the Efficacy and Safetyof MK-0217A/Alendronate Sodium 70 mg/Vitamin D3 5600 I.U.Combination Tablet on Vitamin D Inadequacy in the Treatment ofOsteoporosis in Postmenopausal Women | Phase III (Phase V Program), Open-Label, Randomized, Referred-Care-Controlled, Clinical Trial to Evaluate the Efficacy and Safetyof MK-0217A/Alendronate Sodium 70 mg/Vitamin D3 5600 I.U.Combination Tablet on Vitamin D Inadequacy in the Treatment ofOsteoporosis in Postmenopausal Women | EUCTR2008-001153-17-SE |
| Cholecalciferol Supplement in Treating Patients With Localized Prostate Cancer Undergoing Observation | Randomized Placebo-Controlled, Double-Blind Study of Cholecalciferol Replacement in Patients on Expectant Management for Localized Prostate Cancer | NCT00887432 |
| Study of Vitamin D3 Supplementation in Patients With Chronic Kidney Disease | Does Vitamin D3 (Cholecalciferol) Supplementation Change Insulin Resistance in Patients With Chronic Kidney Disease? | NCT00893451 |
| Supplementation With Vitamin D Improves Leptin Resistance | Effect of Vitamin D Supplementation on Leptin Resistance, Hunger, Body Weight and Resting Energy Expenditure in Obese Women. | NCT00907270 |
| S0812 High Dose Cholecalciferol in Premenopausal Women at High-Risk for Breast Cancer | Phase IIB Randomized Controlled Biomarker Modulation Study of Vitamin D in Premenopausal Women at High Risk for Breast Cancer | NCT01097278 |
| The effect of high dose cholecalciferol orally on serum of vitamin D in elderly with osteoarthritis of the hip | The effect of high dose cholecalciferol orally on serum of vitamin D in elderly with osteoarthritis of the hip - cholecalciferol in elderly with osteoarthritis of the hip | NL-OMON32592 |
| Vitamin D receptor polymorphism , vitamin D-fortified Yogurt drink, Type 2 Diabetes | The role of vitamin D receptor (VDR) single nucleotide polymorphisms (SNPs ) in efficacy of vitamin D-fortified yogurt drink on metabolic-, inflammatory – and oxidative stress indicators in type 2 diabetic patients | IRCT138810223006N2 |
| A Trial of Vitamin D Therapy in Patients With Heart Failure | A Randomized Placebo Controlled Trial of Vitamin D Therapy in Patients With Heart Failure | NCT01125436 |
| Randomised, multi-centre, double-blind, placebo-controlled trial of vitamin D supplementation in adult and adolescent patients with asthma | Randomised, multi-centre, double-blind, placebo-controlled prevention trial of vitamin D supplementation in adult and adolescent patients with asthma | ISRCTN07270894 |
| VITdAL@ICU - Correction of Vitamin D Deficiency in Critically Ill Patients | "Correction of Vitamin D Deficiency in Critically Ill Patients: a Randomized, Double-blind, Placebo-controlled Trial (""VITDAL@ICU"")" | NCT01130181 |
| Replacement of Vitamin D in Patients With Active Tuberculosis | A Randomized, Placebo-Controlled, Double-Blinded, 250-Subject Clinical Trial of Vitamin D Replacement in Patients With Pulmonary Tuberculosis | NCT01130311 |
| Trial Of Paricalcitol and Cholecalciferol(Vitamin D3) in the Treatment Of Secondary Hyperparathyroidism in Patients After ROUX-EN-Y Gastric Bypass Surgery | A Prospective, Randomized, Double-Blind, Double-Dummy,Placebo-Controlled, Parallel-Group, Pilot Trial Of Paricalcitol and Cholecalciferol(Vitamin D3) in the Treatment Of Secondary Hyperparathyroidism in Patients After ROUX-EN-Y Gastric Bypass Surgery | NCT01138475 |
| Vitamin D Substitution for Patients With Chronic Pancreatitis and Malabsorption | Vitamin D Substitution for Patients With Chronic Pancreatitis and Malabsorption | NCT01141998 |
| Effect of Vitamin D Replacement During Winter Months in Patients With Hypertension | Effect of Cholecalciferol on 24-hr ABPM and Vasoactive Hormones in Patients With Hypertension. | NCT01166165 |
| Impact of Vitamin D Repletion in Hemodialysis Patients | Immunologic Impact of Vitamin D Repletion in Hemodialysis Patients: A Randomized Controlled Trial | NCT01175798 |
| Vitamin D and Muscle Strength and Surface (Electromyography) EMG | Skeletal Muscle Strength,Bone Mineral Homeostasis and Th1 and Th2 Cytokines Expression in Asian Indians With Chronic Hypovitaminosis D Before and After Oral Cholecalciferol Supplementation | NCT01190683 |
| Hemodialysis Vitamin D Pilot | Oral Cholecalciferol (Vitamin D3) Therapy in Prevalent Hemodialysis Patients: A Randomized Placebo Controlled Pilot Study | NCT01214928 |
| A double-blind, placebo controlled, randomized, comparative, mono-centre trial to assess the impact of a monthly administration of 50.000 IU of Vitamin D during 6 months on Vitamin D level in healthy young adult volunteers. - D-plus | A double-blind, placebo controlled, randomized, comparative, mono-centre trial to assess the impact of a monthly administration of 50.000 IU of Vitamin D during 6 months on Vitamin D level in healthy young adult volunteers. - D-plus | EUCTR2010-022454-17-BE |
| High-Dose Cholecalciferol in Treating Patients Receiving Combination Chemotherapy and Bevacizumab as First-Line Therapy For Metastatic Colorectal Cancer | A Phase II Clinical Trial of High Dose Vitamin D3 Supplementation in Combination With FOLFOX + Bevacizumab in the 1st Line Treatment of Metastatic Colorectal Cancer | NCT01198548 |
| Explorative Untersuchung zum Einfluss der Vitamin D-vermitteltenr Modulation der initialen subkutanen Gräserpollen-spezifischen Immuntherapie bei Allergikern mit Gräserpollen-induzierter Rhinokonjunktivitis mit/ohne allergischem Asthma | Explorative Untersuchung zum Einfluss der Vitamin D-vermitteltenr Modulation der initialen subkutanen Gräserpollen-spezifischen Immuntherapie bei Allergikern mit Gräserpollen-induzierter Rhinokonjunktivitis mit/ohne allergischem Asthma | EUCTR2010-021775-80-DE |
| DAYLIGHT: Vitamin D Therapy in Individuals at High Risk of Hypertension | Daylight: The Effect of Vitamin D Supplementation on Blood Pressure in Vitamin D Deficient Individuals With Pre-Hypertension | NCT01240512 |
| Correction of vitamin D deficiency in critically ill patients: a randomized, doulbe-blind, placebo-controlled trial | Correction of vitamin D deficiency in critically ill patients: a randomized, doulbe-blind, placebo-controlled trial | EUCTR2010-018798-39-AT |
| Cholecalciferol (Vitamin D3) Therapy in Chronic Kidney Disease (CKD) Subjects | Efficacy of Cholecalciferol (Vitamin D3) Therapy in Correcting Vitamin D Insufficiency and Secondary Hyperparathyroidism in Subjects With Chronic Kidney Disease: A Randomized, Placebo Controlled Pilot Study | NCT00427037 |
| Vitamin D Dose Finding Study | Safe and Effective Vitamin D Supplementation in HIV | NCT01092338 |
| Pilot Pharmacokinetic Study of Daily Versus Monthly High-Dose Cholecalciferol Supplementation | Pilot Pharmacokinetic Study of Daily Versus Monthly High-Dose Cholecalciferol Supplementation | NCT01079923 |
| Randomised, Multi-Centre, Double-Blind, Placebo-Controlled Trial of Vitamin D Supplementation in Patients with Chronic Obstructive Pulmonary Disease - Trial of vitamin D supplementation in COPD | Randomised, Multi-Centre, Double-Blind, Placebo-Controlled Trial of Vitamin D Supplementation in Patients with Chronic Obstructive Pulmonary Disease - Trial of vitamin D supplementation in COPD | EUCTR2009-010084-16-GB |
| Vitamin D og kronisk nyreinsufficiens | Vitamin D og kronisk nyreinsufficiens | EUCTR2008-006438-82-DK |
| VITDAL@ICU - Vitamin D supplementation in critically ill patients – prospective, double-blind, randomized, placebo-controlled trial (pilot study) - VITDAL@ICU | VITDAL@ICU - Vitamin D supplementation in critically ill patients – prospective, double-blind, randomized, placebo-controlled trial (pilot study) - VITDAL@ICU | EUCTR2009-012080-34-AT |
| Cholecalciferol in elderly with osteoarthritis of the hip. | The effect of high dose cholecalciferol orally on serum of vitamin D in elderly with osteoarthritis of the hip (Het effect van een hoge dosis vitamine D3 op het serum vitamine D in ouderen met coxartrose). | NL-OMON27613 |
| The Influence of Vitamin D on Mineral Metabolism, Blood Pressure and Pulse Wave Analysis in Healthy Individuals | The Influence of Vitamin D on Mineral Metabolism, Blood Pressure and Pulse Wave Analysis in Healthy Individuals. A Randomised Double Blinded Placebo Controlled Trial. | NCT00952562 |
| Vitamin D, Blood Pressure, Lipids, Infection and Depression | Vitamin D, Blood Pressure, Lipids, Infection and Depression | NCT00960232 |
| Vitamin D and Chronic Renal Insufficiency | Vitamin D and Chronic Renal Insufficiency | NCT00968877 |
| Vitamin D Deficiency in Patients With Hypertension | Vitamin D Deficiency, Renin Inhibitor Response, and Vitamin D Supplementation in Patients With Hypertension | NCT00974922 |
| Study of Vitamin D for Premenopausal Women at High Risk for Breast Cancer | Pilot Biomarker Modulation Study of Vitamin D in Premenopausal Women at High Risk for Breast Cancer | NCT00976339 |
| Trial of Vitamin D Supplementation in Asthma | Randomised, Multi-centre, Double-blind, Placebo-controlled Trial of Vitamin D Supplementation in Adult and Adolescent Patients With Asthma | NCT00978315 |
| Diabetes Intervention Trial With Vitamin D in Subjects of Nordic and Sub-Indian Ethnicity | A Randomized Controlled Trial of the Effect of Vitamin D Supplementation on Insulin Sensitivity and Secretion in Subjects With Type 2 Diabetes of Nordic and Sub-Indian Ethnicity . | NCT00992797 |
| This is a randomised study to assess the safety and efficacy of a high dose vitamin D supplement compared to the standard vitamin D therapy in children. | A study to assess the safety and efficacy of stoss therapy (high dose vitamin D supplement) compared to standard daily therapy in children diagnosed with simple vitamin D deficiency. | ACTRN12609000874213 |
| A randomized placebo controlled trial of vitamin D3 supplementation to a vulnerable patientsgroup susceptible to uppertract respiratory infections. | A randomized placebo controlled trial of vitamin D3 supplementation to a vulnerable patientsgroup susceptible to uppertract respiratory infections. | EUCTR2009-011758-16-SE |
| The Effect of Weight on Vitamin D Dose Response | The Effect of Weight on Vitamin D Dose Response | NCT01013584 |
| Role of Vitamin D in Secondary Prevention of Cardiovascular Events | Role of Vitamin D in Secondary Prevention of Cardiovascular Events | NCT01018849 |
| Vitamin D, C-reactive Protein and Insulin Resistance | Effect of Vitamin D Supplementation on C-reactive Protein and Insulin Resistance in Postmenopausal Women With Type 2 Diabetes Mellitus | NCT01019642 |
| Vitamin D Replacement: The Effect on Statin-Related Myalgias | Vitamin D Replacement: The Effect on Statin-Related Myalgias | NCT01022398 |
| Safety and Immunologic Effect of Low Dose Versus High Dose Vitamin D3 in Multiple Sclerosis | A Pilot Study to Assess the Relative Safety and Immunology Effects of Low Dose Versus High Dose Cholecalciferol Supplementation in Patients With Multiple Sclerosis | NCT01024777 |
| Loading Dose Vitamin D Study: Cholecalciferol 5000units daily compared to 1000units daily for the treatment of moderate to severe vitamin D deficiency in Elderly Patients (LDVD Study) | Loading Dose Vitamin D Study: Cholecalciferol 5000units daily compared to 1000units daily for the treatment of moderate to severe vitamin D deficiency in Elderly Patients (LDVD Study) | ACTRN12609001069246 |
| Vitamin D Supplementation as Non-toxic Immunomodulation in Children With Crohn's Disease | Vitamin D Supplementation as Non-toxic Immunomodulation in Children With Crohn's Disease | NCT01046773 |
| A Trial to Study the Effect of Long Term Vitamin D Supplementation on Insulin Sensitivity | A Double Blind Randomized Control Trial to Study the Effect of Long Term Vitamin D Supplementation on Peripheral Insulin Sensitivity in Apparently Healthy Middle Aged Centrally Obese Adults | NCT01052181 |
| Fortified dough and diabetes | Comparison of efficacy of vitamin D and vitamin D-calcium fortified dough on glycemic, metabolic, inflammatory, immunity and oxidative stress markers in type 2 diabetes. | IRCT138810163006N1 |
| Vitamin D and vascular health of chronic fatigue syndrome patients | Vitamin D supplementation in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) patients: a randomised, placebo-controlled, parallel, double-blind study | ISRCTN59927814 |
| Trial of Adjunctive Vitamin D in Tuberculosis Treatment | Trial of Adjunctive Vitamin D in Tuberculosis Treatment | NCT00419068 |
| Safety Study of EF-022 ( Modified Vitamin D Binding Protein Macrophage Activator) in Subjects With Advanced Solid Tumors | A PHASE I, OPEN LABEL, DOSE-ESCALATION TRIAL EVALUATING THE SAFETY AND TOLERABILITY OF EF-022 (MODIFIED VITAMIN D BINDING PROTEIN MACROPHAGE ACTIVATOR) IN SUBJECTS WITH ADVANCED SOLID MALIGNANCIES | NCT02052492 |
| Effect of Oral Vitamin D Supplement on Atopic Dermatitis; A Clinical Trial With Staphylococcus Aureus Colonization Determination | | NCT02058186 |
| The role of vitamin D on the frequency of falls and postural balance in postmenopausal women | The role of vitamin D on the frequency of falls and postural balance in postmenopausal women | RBR-222wkf |
| High-dose Vitamin D Supplementation for ADT-induced Side Effects | High-dose Vitamin D Supplementation for ADT-induced Side Effects | NCT02064946 |
| Prospective study for prevention of insufficiency fracture after pelvic irradiation with alendronate and vitamin D | Prospective study for prevention of insufficiency fracture after pelvic irradiation with alendronate and vitamin D - Prospective study for prevention of insufficiency fracture with alendronate and vitamin D | JPRN-UMIN000013114 |
| Effect of combined calcium-vitamin D and only calcium on pain severity and menstrual bleeding in students with primary dysmenorrhea | Effect of combined calcium-vitamin D and only calcium on pain severity and menstrual bleeding in students with primary dysmenorrhea: a randomized placebo-controlled trial | IRCT201402043706N21 |
| The effect of high-resistance muscle strength training and vitamin D supplementation in persons with knee osteoarthritis | The effect of high-resistance muscle strength training and vitamin D supplementation in persons with knee osteoarthritis - VitD-EX | NL-OMON44546 |
| The effect of intensive muscle strength training and vitamin D supplementsin persons with knee osteoarthritis | The effect of high-resistance muscle strength training and vitamin Dsupplementation in persons with knee osteoarthritis - vitD-EX | EUCTR2014-000047-33-NL |
| Does vitamin D alone, or in combination with probiotics improve symptoms of irritable bowel syndrome (IBS) (PROBIVIT)? | Randomised Controlled Pilot Trial: Does vitamin D alone, or in combination with probiotics improve symptoms of IBS (PROBIVIT)? | ISRCTN75474149 |
| Effect of low dose vitamin D on serum inflammatory factors in maintenance hemodialysis patients | Effect of low dose vitamin D on serum inflammatory factors in maintenance hemodialysis patients | KCT0001017 |
| A clinical trial to study the effect of vitamin D on improving the pain in chronic low back pain patients. | Improvement of Chronic Back Pain with Vitamin D supplementation: An open label; single arm study | CTRI/2014/03/004459 |
| The effect of vitamin D deficiency treatment on chronic obstructive pulmonary diseasepatients | The effect of vitamin D on recovery and quality of life of chronic obstructive pulmonary diseasepatients. | IRCT2013072114085N2 |
| GAit, MEmory, Dietary and Vitamin D | Dairy Product, Calcium & Vitamin D Supplementation and Cognitive-motor Function | NCT02086409 |
| Effect of Vitamin D Supplementation in Patients With Heart Failure and Vitamin D Deficiency | Effect of Vitamin D Supplementation in Patients With Heart Failure and Vitamin D Deficiency | NCT02087683 |
| Effects of Vitamin D3 Versus 25OHD3 on Mineral Metabolism and Immune Function | The Effects of Vitamin D3 Versus 25OHD3 (HyD) on Serum Vitamin D Metabolites and Markers of Mineral Metabolism and Immune Function | NCT02091219 |
| Effects of vitamin D suppletment on muscle mass, strength and function in the elderly | Effects of vitamin D suppletment on muscle mass, strength and function in the elderly | ChiCTR-TRC-14004381 |
| Study of Effects of Vitamin D on expression of some of genes in MS patient | Study of Effects of Vitamin D on expression of TGF-ßI, TGF-ßII, TGF-ß RI, TGF-ß RII, NF?B1 and IL-10 genes in Multiple Sclerosis patient | IRCT2014011216181N1 |
| Nutritional Intervention of Type II Diabetes Mellitus by Vitamin D in Qatar | Nutritional Intervention of Type II Diabetes Mellitus by Vitamin D in Qatar | NCT02098980 |
| Creatine or Vitamin D Supplementation in Persons With Spinal Cord Injury Undergoing Resistance Training | Creatine or Vitamin D Supplementation in Persons With Spinal Cord Injury Undergoing Resistance Training | NCT02099357 |
| Efficacy and Safety of the Combination Vitamin D With Standard of Care in Egyptian Patients With Untreated Chronic Hepatitis C | Efficacy and Safety of the Combination Vitamin D (Vit D), With Pegylated Interferon Alpha-2b (PEG-IFN)/Ribavirin (RBV) in Egyptian Patients With Untreated Chronic Hepatitis C: A Phase III Randomized Open-label Clinical Trial | NCT02099604 |
| How Much Vitamin D is Needed in Milk Products to Support Vitamin D Intake and Bone Health in Children? | How Much Vitamin D is Needed in Milk Products to Support Vitamin D Intake and Bone Health in Children? | NCT02097160 |
| DHA and Vitamin D in Children With Biopsy-proven NAFLD | Efficacy and Tolerability of Vitamin D and Docosahexaenoic Acid (DHA) in Children With Biopsy Proven NAFLD | NCT02098317 |
| The efficacy of exercise training and nutritional supplementation in prostate cancer survivors | The efficacy of resistance exercise training and nutritional supplementation of calcium, vitamin D and protein on musculoskeletal health, cardiometabolic risk factors and health-related quality of life in prostate cancer survivors treated with androgen deprivation therapy when compared to usual care | ACTRN12614000317695 |
| Can Vitamin D supplementation in infants prevent food allergy in the first year of life? The VITALITY Trial | A placebo-controlled, randomised trial of vitamin D supplementation for infants in their first year of life, to prevent the development of food allergy by age 12 months. The VITALITY Trial. | ACTRN12614000334606 |
| Effect of Vitamin D Supplementation on the Control of Asthma in Children at a South African Academic Hospital | Effect of Vitamin d Supplementation on the Control of Persistent Asthma in Children at Dr George Mukhari Academic Hospital, Pretoria, South Africa | NCT02053402 |
| Can Vitamin D Supplementation in the First Year of Life Prevent Food Allergy in Infants? the VITALITY Trial: Parts 1&2 | Can Vitamin D Supplementation Prevent Food Allergy in Infants? the VITALITY Trial | NCT02112734 |
| Effect of Vitamin D Supplementation in Young South African Children Hospitalized With Acute Lower Respiratory Infection | Effect of Vitamin D Supplementation in Young Children With Acute Lower Respiratory Tract Infection at Dr George Mukhari Academic Hospital, Pretoria, South Africa | NCT02054182 |
| Effect of vitamin D-fortified low fat yogurt in post menopausal women with type 2 diabetes | Effect of vitamin D-fortified low fat yogurt on anthropometric, glycemic control, bone, and inflammatory markers in post menopausal women with type 2 diabetes | IRCT2013110515294N1 |
| High Dose Vitamin D vs Standard Dose Vitamin D Study | A Randomized, Controlled Trial of High Dose vs. Standard Dose Vitamin D for Aromatase-Inhibitor Induced Arthralgia in Breast Cancer Survivors | NCT01988090 |
| Observational study of the daily intake of 1000 IU Vitamin D3 during pregnancy on the 25-hydroxyvitamin D status | Observational study of the daily intake of 1000 IU Vitamin D3 during pregnancy on the 25-hydroxyvitamin D status | DRKS00005421 |
| A randomised controlled trial comparing daily (400 international units) and single bolus dosing (50,000 international units) of vitamin D in healthy breastfed infants of vitamin D deficient mothers. | A randomised controlled trial evaluating the efficacy and safety of single bolus (50,000 international units) versus daily (400 international units) dosing of vitamin D in healthy breastfed infants of vitamin D deficient mothers. | ACTRN12613001234707 |
| Long Term Vitamin D Therapy in HCV Treated Patients | Effect of Long-term Vitamin D Therapy on IL-6, Visfatin and Hyaluronic Acid in Hepatitis C Virus Patients' Assessment | NCT01997203 |
| Vitamin D and nifedipine in the treatment of Chinese patients with grade I-II essential hypertension: A randomized controlled trial | Vitamin D and nifedipine in the treatment of Chinese patients with grade I-II essential hypertension: A randomized controlled trial | ChiCTR-ONC-13003840 |
| Vitamin D replacement therapy in patients with pulmonary Hypertension | Evaluation of vitamin D replacement on patients with pulmonary hypertension and vitamin D deficiency | IRCT2013091713828N3 |
| Vitamin D to Reduce Colds and Asthma Attacks in Young Children | Vitamin D vs. Placebo in the Prevention of Viral-induced Exacerbations in Preschoolers With Asthma: a Pilot RCT | NCT01999907 |
| Chronic Pain and Vitamin D | Chronic Pain and Vitamin D: a Randomized Pilot Study in General Practice | NCT02002000 |
| The associate of polymorphisms of vitamin D metabolism-related genes with autism, and the treatment of autism with vitamin D | The associate of polymorphisms of vitamin D metabolism-related genes with autism, and the treatment of autism with vitamin D | ChiCTR-CCC-13004498 |
| Effect of vitamin D supplementation as an adjuvant therapy in Chinese patients with coronary artery disease: A Randomized Placebo-Controlled Trial | Effect of vitamin D supplementation as an adjuvant therapy in Chinese patients with coronary artery disease: A Randomized Placebo-Controlled Trial | ChiCTR-TRC-13003958 |
| Vitamin D Supplementation in Cirrhotic Patients | Vitamin D Supplementation in Cirrhotic Patients: A Randomized, Multi-center, Double-blind, Placebo Controlled Trial to Evaluate Vitamin D Supplementation on Serum 25-hydroxyvitamin D Levels in Cirrhotic Patients | NCT02009748 |
| Vitamin D Supplementation and Muscle Function in Older Adults | Trial of Vitamin D Supplementation and Neuromuscular Function in Older Adults | NCT02015611 |
| The Effect of Vitamin D3 to Maintain Surgical Remission in Postoperative Crohn's Disease | The Effect of Vitamin D3 to Maintain Surgical Remission in Postoperative Crohn's Disease: a Placebo-controlled Randomized Trial | NCT02010762 |
| Effect of Vitamin D Treatment on Fatigue | Effect of Peroral Vitamin D Versus Placebo on Self-reported Fatigue in Adults With Low 25-hydroxy-vitamin D Levels | NCT02022475 |
| Rhinitis in the Elderly: The Role of Vitamin D | """Rhinitis in the Elderly: A Randomized, Double-Blind, Placebo Controlled, Cross-Over Study of the Effect of Vitamin D Supplementation on Nasal Symptoms and Rhinitis Related Quality of Life""" | NCT02272101 |
| Optimizing Treatment Programs for Chronic Kidney Disease-mineral and Bone Disorder and Malnutrition | Study of Vitamin D2 Virus 1,25(OH)2-Vitamin D3 and Normal Protein Diet Virus Low Protein Diet in the Treatment of CKD-MBD and Malnutrition for Progressive CKD Patients | NCT02005302 |
| Comparison of Maternal and Neonatal Vitamin D Levels in Term Neonates With and Without Early Onset Sepsis | | NCT02019836 |
| Effect of Vitamin D Supplementation on Exercise Adaptations in Patients on Statin Therapy | Effect of Vitamin D Supplementation on Exercise Adaptations in Patients on Statin Therapy | NCT02030041 |
| Effect of vitamin D supplementation on pegylated interferon/ribavirin/simeprevir therapy for chronic hepatitis C genotype 1b: Pilot Study | Effect of vitamin D supplementation on pegylated interferon/ribavirin/simeprevir therapy for chronic hepatitis C genotype 1b: Pilot Study - Triple therapy + vitamin D | JPRN-UMIN000012666 |
| Treatment of vitamin D deficiency in assisted reproductive cycles. | Effect of vitamin D deficiency treatment on pregnancy outcomes in frozen-thawed embryo transfer cycles | IRCT201207156420N11 |
| Effect of vitamin D in the treatment of inflammatory bowel disease | Association between Vitamin D deficiency in patients with inflammatory bowel disease and disease activity, TNF alpha level and quality of life | IRCT2013122915686N1 |
| comparison of effectiveness of Vitamin D supplementation in decreasing the development of the gestational diabetes mellitus in in pregnant women | comparison of effectiveness of Vitamin D supplementation in decreasing the development of the gestational diabetes mellitus in pregnant women | IRCT201309277513N4 |
| To study the effects of vitamin D supplementation on insulin resistance in Poly-Cystic Ovarian Syndrome (PCOS) | To investigate the effects of Vitamin D supplementation on insulin resistance and beta-cell function in Asian-Indian Subjects with Poly Cystic Ovarian Syndrome (PCOS) | CTRI/2014/01/004299 |
| Increased Vitamin D Reduces Pulmonary Exacerbations in CF | Increasing Vitamin D Serum Levels Reduces Pulmonary Exacerbations in Patients With Cystic Fibrosis | NCT02043717 |
| An open, controlled, double-blind, with placebo clinical trial and randomized in subgroups of pediatric patients with allergic and non-allergic asthma, with deficiency, insufficiency or normal levels of Vitamin D. | An open, controlled, double-blind, with placebo clinical trial and randomized in subgroups of pediatric patients with allergic and non-allergic asthma, with deficiency, insufficiency or normal levels of Vitamin D. | EUCTR2013-003098-88-ES |
| Nutritional Intervention for Age-related Muscular Function and Strength Losses-Study 2 | Year-long Double Blind Study on the Efficacy of a Combination of Beta-hydroxy-beta-methylbutyrate and Vitamin D With and Without Exercise on Muscular Strength and Functionality in Older Adults. | NCT02043171 |
| The pharmacogenetics of vitamin D response in tuberculosis - The pharmacogenetics of vitamin D response in tuberculosis | The pharmacogenetics of vitamin D response in tuberculosis - The pharmacogenetics of vitamin D response in tuberculosis | EUCTR2010-023189-27-GB |
| Can Vitamin D Supplementation Prevent Type 2 Diabetes? | Can Vitamin D Supplementation Prevent Type 2 Diabetes by Improving Insulin Sensitivity and Secretion in Overweight Humans? | NCT02112721 |
| To examine the clinical effectiveness of aspirin and/or Vitamin D3 to prevent disease progression in men on active surveillance for prostate cancer | PROVENT: A randomised, double blind, placebo-controlled feasibility study to examine the clinical effectiveness of aspirin and/or Vitamin D3 to prevent disease progression in men on active surveillance for prostate cancer | ISRCTN91422391 |
| Effect of vitamin D on fatigu and musculo-skeletal pain of female nurses | Effect of vitamin D on fatigue and musculo-skeletal pain of female nurses | IRCT2014041517298N1 |
| Vitamin D and Type 2 Diabetes (Phoenix Site) | Vitamin D and Type 2 Diabetes (Phoenix Site) | NCT02015052 |
| migraine headache attacks prevention by prescribing vitamin D | Effect of vitamin D3 on frequency and severity of migraine headache in patients referred to neurology clinic of Rasool Akram Hospital in Tehran,1392 | IRCT2013101415020N1 |
| Vitamin D Treatment and Hypocalcemic Pregnant Women | Effect of Treatment of Vitamin D Deficiency During Pregnancy on Hypocalcemia | NCT02021864 |
| Efficacy of the Dose Regimen of Oral Vitamin D 50,000 IU in the Treatment of Vitamin D Deficiency | Safety and Efficacy Evaluation of the Dose Regimen of Vitamin D 50,000 IU(Biodal) Tablet Supplementation in the Treatment of Population With Vitamin D Deficiency. | NCT02192229 |
| The effects of cholecalciferol and soy isoflavones in irritable bowel syndrome | The effects of cholecalciferol, soy isoflavones, and co-administration of them versus placebo on pain, flatulence and quality of life in patients with irritable bowel syndrome | IRCT2013112915582N1 |
| Zoledronate, Calcium, and Vitamin D in Preventing Bone Loss in Women Receiving Adjuvant Chemotherapy for Breast Cancer | Phase III Trial of Intravenous Zoledronic Acid (Zometa) in the Prevention of Bone Loss in Localized Breast Cancer Patients With Chemotherapy-Induced Ovarian Failure | NCT00022087 |
| A trial of vitamin D in preventing hip fracture | | ISRCTN47348080 |
| Cholecalciferol in Treating Patients With Myelodysplastic Syndrome | Orthomolecular Vitamin D3 in Low-Risk Myelodysplastic Syndrome: An Open-Label Clinical Trial | NCT00068276 |
| Study of Vitamin D for the Prevention of Acute Respiratory Infections in Children | A Randomized, Double-blind, Controlled Trial of Vitamin D for the Prevention of Acute Respiratory Infections in Children Aged 18 to 36 Months in Santiago, Coyhaique and Punta Arenas, Chile | NCT02046577 |
| A randomised placebo controlled double blind clinical trial of vitamin D in the treatment of tuberculosis | | ISRCTN35212132 |
| A Study to Evaluate the Safety, Tolerability, and Efficacy of an Investigational Drug and Dietary Supplement in Men and Postmenopausal Women With Osteoporosis (0217A-227) | A 15-Week, Double-Blind, Randomized, Active-Controlled, Multi-Center Study With 24-Week Extension to Evaluate the Safety, Tolerability, Efficacy of Alendronate 70 mg Plus Vitamin D3 2800 IU Combination Tablet in Men and Postmenopausal Women With Osteoporosis | NCT00092066 |
| A Study of MK0217A and Dietary Supplement in Men and Postmenopausal Women With Osteoporosis (0217A-227) | A 15-Week, Double-Blind, Randomized, Active-Controlled, Multi-Center Study With 24-Week Extension to Evaluate the Safety, Tolerability, Efficacy of Alendronate 70 mg Plus Vitamin D3 2800 IU Combination Tablet in Men and Postmenopausal Women With Osteoporosis | NCT00092079 |
| Arsenic Trioxide and Cholecalciferol (Vitamin D) in Treating Patients With Myelodysplastic Syndromes | Phase II Trial of Arsenic Trioxide and Dose-Escalated Cholecalciferol in Myelodysplastic Syndrome | NCT00104806 |
| Early Rehabilitation After Hip Fracture | Early Rehabilitation After Hip Fracture: A Randomized Controlled Trial Comparing Different Vitamin D and Rehabilitation Programs | NCT00133640 |
| Does vitamin D stop inpatients falling? A randomised controlled trial | | ISRCTN18282824 |
| Treatment of Obesity With Vitamin D (40.000 IE Per Week for 1 Year) | | NCT00243256 |
| The Effect of Vitamin D on Bone Accretion and Turn-Over in Young Girls | Adolescent Girls-Impact of Vitamin D on Bone Accretion Work Package 1 (Danish Part) of OPTIFORD (Towards A Strategy for Optimal Vitamin D Fortification) | NCT00267540 |
| Cholecalciferol Versus Doxercalciferol in the Treatment of Secondary Hyperparathyroidism in Chronic Kidney Disease | Comparison of Cholecalciferol Versus Doxercalciferol in the Treatment of Secondary Hyperparathyroidism in CKD | NCT00285467 |
| A Clinical Trial to Study the Effect of the Addition of Vitamin D to Conventional Treatment in New Pulmonary Tuberculosis Patients | A Double Blind, Randomized, Parallel, Placebo Control Design Study to Determine the Effect of Addition of Vitamin D to Conventional Anti TB Therapy | NCT00366470 |
| Vitamin D Deficiency, Muscle Pain, Joint Pain, and Joint Stiffness in Postmenopausal Women Receiving Letrozole For Stage I-III Breast Cancer | A Pilot Study of Vitamin D Deficiency and Myalgias, Arthralgias and/or Joint Stiffness Associated With Letrozole (Femara® ) | NCT00416715 |
| Vitamin D Therapy in Patients With Systemic Lupus Erythematosus (SLE) | Phase 1 Study of Vitamin D Therapy in Patients With Systemic Lupus Erythematosus (SLE) | NCT00418587 |
| Vitamin D injection versus oral vitamin D in adults with vitamin D deficiency | Comparative evaluation of aqueous vitamin D injection versus oral vitamin D in healthy individuals with vitamin D deficiency: A randomized active-controlled trial - NIL | CTRI/2023/07/055517 |
| A Population-based Study of the Determinants of Serum Vitamin A and Vitamin D Concentration and health database in China | A Population-based Study of the Determinants of Serum Vitamin A and Vitamin D Concentration and health database in China | ChiCTR-TRC-14004584 |
| Intervention Study of Vitamin D Supplementation to Prevent Cardiovascular Disease | Study of Vitamin D Deficiency on Cardiovascular Disease and the Effect of Vitamin D Supplementation | NCT03339427 |
| Weekly Vitamin D in Pediatric IBD | Weekly Vitamin D3 for Treatment of Hypovitaminosis D in Children and Adolescents With Inflammatory Bowel Disease | NCT02076750 |
| Vitamin D Deficiency and Replacement on Pulmonary and Endocrine Function in SCI | Effects of Vitamin D Deficiency and Its Replacement on Pulmonary and Endocrine Function in Persons With SCI | NCT02099955 |
| Vitamin D and Vitamin B12 Supplementation With Pegylated Interferon-Alfa Plus Ribavirin for Treating Chronic Hepatitis C | Randomized Clinical Trial to Assess the Effectiveness of Vitamin D and Vitamin B12 Supplementation in Combination With Pegylated Interferon-Alfa Plus Ribavirin for Treating Chronic Hepatitis C. | NCT02120274 |
| The effect of treatment of Vitamin D deficiency on mortality rate of children admitted to the intensive care unit | The effect of treatment of Vitamin D deficiency on mortality rate of children admitted to the intensive care unit | IRCT2013123116020N1 |
| Vitamin D Supplementation in Patients With COPD | Prevention of Exacerbations in Patients With COPD Through Vitamin D Supplementation: a Randomized Controlled Trial | NCT02122627 |
| Roles of Vitamin D and HDL in Obese Children | Roles of Vitamin D and HDL in Obese Children | NCT02135913 |
| A clinical trial to compare the effects of iron therapy alone versus combined iron therapy and vitamin D supplementation on cardiovascular functions in children with iron deficiency anemia | Comparison of effect of iron therapy alone versus combined iron therapy and vitamin D supplementation on cardiovascular functions in children with iron deficiency anemia | CTRI/2014/04/004574 |
| Effect of vitamin D supplementation on nonalcoholic fatty liver disease in type 2 diabetic patients | Investigation of the effect of vitamin D supplementation on improvement of liver function test in type 2 diabetic patients who have both vitamin D deficiency and nonalcoholic fatty liver disease | IRCT2014020816528N1 |
| A dose-response, double-blind, randomised placebo-controlled trial to estimate the dietary requirement for vitamin D in male and female adolescents aged 14-18 years | A dose-response, double-blind, randomised placebo-controlled trial to estimate the dietary requirement for vitamin D in male and female adolescents aged 14-18 years (The ODIN Study) | ISRCTN40736890 |
| Effect of a Monthly High Dose of Vitamin D3 on Bariatric Surgery Patients | Impact of Monthly High Dose Oral Cholecalciferol on Serum 25 Hydroxy Vitamin D Levels in Bariatric Surgery Subjects | NCT02477956 |
| Efficacy Study of Vitamin D and Statins to Treat Hypercholesterolemia | Effect of Vitamin D and Statins on Plasma Lipid Profiles in Chinese Patients With Hypercholesterolemia | NCT02009787 |
| Comparison of the Effects of Calcium, Vitamin D, and Calcium plus Vitamin D On Anthropometric Indices, Body Composition, Lipid Profile, Blood Pressure, and Blood Glucose in Overweight or Obese Premenopausal women. | Comparison of the Effects of Calcium, Vitamin D, and Calcium plus Vitamin D On Anthropometric Indices, Body Composition, Lipid Profile, Blood Pressure, and Blood Glucose in Overweight or Obese Premenopausal women. | IRCT2014021116555N1 |
| Effect of vitamin d and vitamin e on premenstrual syndrome | Evaluating the Effects of vitamin d and vitamin e on the Severity of Premenstrual Syndrome in the affected persons that go to medical-health centers of isfahan university of medical sciences | IRCT201401086854N2 |
| Effects of vitamin D on insulin resistance and endothelial dysfunction in diabetic patients with ischemic heart disease | Effects of vitamin D administration vs. placebo on insulin resistance, endothelial dysfunction and inflammatory markers in diabetic patients with ischemic heart disease | ACTRN12614000529640 |
| The effect of vitamin D supplementation versus placebo on chronic obstructive pulmonary diseases | The effect of vitamin D supplementation versus placebo on chronic obstructive pulmonary diseases: A triple blinded randomized clinical trial | IRCT201402029014N23 |
| The effect of vitamin D supplementation versus placebo on moderate to severe asthma | The effect of vitamin D supplementation versus placebo on moderate to severe asthma: A triple blinded randomized clinical trial | IRCT201402029014N22 |
| Frequency of sarcopenia and efficacy of vitamin D in patients with liver cirrhosis | Frequency of sarcopenia and efficacy of vitamin D in patients with liver cirrhosis - Frequency of sarcopenia and efficacy of vitamin D in patients with liver cirrhosis | JPRN-UMIN000014101 |
| Comparison of Changes in Serum 25(OH)D Concentrations Following Vitamin D Supplementation With Chewable Tablets Versus Pills | | NCT02158598 |
| Study to evaluate the tolerability of a combination therapy consisting of GAD-alum (Diamyd®), etanercept and vitamin D in children and adolescents newly diagnosed with type 1 diabetes | Open Label trial to evaluate the tolerability of a combination therapy consisting of GAD-alum (Diamyd®), etanercept and vitamin D in children and adolescents newly diagnosed with type 1 diabetes - EDCR (Etanercept Diamyd Combination Regimen) | EUCTR2014-001323-76-SE |
| Investigating the effect of thiamine, magnesium and vitamin D in the treatment of type 2 diabetic neuropathy | The effect of co-supplementation magnesium, thiamine and vitamin D on glycemic status and severity of neuropathy symptoms in patients with neuropathic type 2 diabetes | IRCT20191105045340N6 |
| Role of Vitamin D in Treatment of Lumbar Disc Herniation: Pain and Sensory Aspects | Clinical trial to evaluate the effect of vitamin D supplementation on discogenic pain and sensory deficits associated with cases afflicted with lumbar disc herniation | IRCT2014050317534N1 |
| Effect of vitamin D supplementation on progression of osteoarthritis knee | Effect of vitamin D on progression of primary osteoarthritis knee- A double blind randomized control trial | CTRI/2014/06/004658 |
| Vitamin D supplementation in Pregnancy | A Randomized Controlled Trial to Investigate the Effects of Vitamin D supplementation on maternal and new-born babyâ??s vitamin D status in Asian-Indian Subjects. - VIDIMAN | CTRI/2014/06/004670 |
| Effect of Supplementary Vitamin D in Patients With Diabetes Mellitus and Pulmonary Tuberculosis | Effect of Supplementary Vitamin D in Patients With Diabetes Mellitus and Pulmonary Tuberculosis (EVIDENT Study): a Randomized, Double Blind, Controlled Trial | NCT02169570 |
| Vitamin D Supplementation and TB | A Trial of Vitamin D Supplementation Among Tuberculosis Patients in South India | NCT01992263 |
| Immune and Metabolic Effects of Vitamin D Supplementation in Healthy Humans | Placebo Controlled Study to Assess the Effects of Vitamin D Supplementation on Parameters of the Immune, Endocrine and Metabolic System in Healthy Women and Men. | NCT01248442 |
| Pilot study: Leucocyte actIvation and endothelial function after oral fat loading combined with VITamin D - LIVIT-D | Pilot study: Leucocyte actIvation and endothelial function after oral fat loading combined with VITamin D - LIVIT-D | EUCTR2010-024182-44-NL |
| Study of the Efficacy and Safety of Cholecalciferol Supplementation on the Activity of Rheumatoid Arthritis in Patients With Vitamin D Deficiency | Study of the Efficacy and Safety of Cholecalciferol Supplementation on the Activity of Rheumatoid Arthritis in Patients With Vitamin D Deficiency | NCT02243800 |
| A study to evaluate whether absorption of food while taking D-CURE has an impact on the level of vitamin D in blood | A phase IV, randomised, cross-over study to estimate the influence of food on the 25-hydroxyvitamin D3 serum level after vitamin D3 (D-CURE®) supplementation. | EUCTR2014-003779-48-BE |
| Periodontal and Cardiometabolic Responses to Vitamin D Intervention in African Americans With Periodontal Disease | Periodontal and Cardiometabolic Responses to Vitamin D Intervention in African Americans | NCT02337257 |
| A study in patients eligible for Calcium and Vitamin D supplementation to evaluate subject preference and acceptability of a new formulation of Calcichew D3 | A Randomized, Open-Label, 2-Way Cross-over, Phase 4 Study to Evaluate Subject Preference and Acceptability of a New Formulation of Calcichew D3 in Adult Patients Eligible for Calcium and Vitamin D Supplementation. | EUCTR2014-005619-18-GB |
| Can Vitamin D3 Improve Cognitive Function in Individuals With Type 2 Diabetes? (THINK-D) | Can Vitamin D3 Improve Cognitive Function in Individuals With Type 2 Diabetes? (THINK-D) | NCT02416193 |
| Influence of an iron binding agent and Vitamin D in the treatment of blood disorders named Myelodisplastic syndromes | A PHASE I/II STUDY OF THE COMBINATION OF DEFERASIROX-VITAMIN D AND AZACITIDINE IN HIGH-RISK MYELODYSPLASTIC SYNDROMES (IPSS INT-2 and HIGH). - GFM-ExVD-AZA | EUCTR2015-001679-27-BE |
| Does Vitamin D supplementation in pregnancy improves maternal and neonatal outcome? | The effect of Vitamin D supplementation in pregnancy on maternal and neonatal outcome: A double blind randomised controlled trial | CTRI/2015/07/006039 |
| Vitamin D as an Adjunctive Treatment in Patients With Non-Cystic Fibrosis Bronchiectasis | Vitamin D as an Adjunctive Treatment in Patients With Non-Cystic Fibrosis Bronchiectasis: a Double-blind Randomised Controlled Trial | NCT02507843 |
| The effect of vitamin D supplementation on vitaminD levels in patients with severe mental illness - a prospective trial | The effect of vitamin D supplementation on vitaminD levels in patients with severe mental illness - a prospective trial - VIDEPA-study | NL-OMON42464 |
| Efficacy of Usual Vitamin D Supplementation and Its Impact on Children and Adolescents Calciuria. | Vitamin D Supplementation in Children and Adolescents Seen in the Paediatric Nephrology Service: Study of the Efficacy of Service Usual Care (Cholecalciferol) and Its Impact on Calciuria. | NCT02238418 |
| PRAgmatic trial, Multicentre, cross-over, evaluating in patients with atopic dermatitis the long-term control effectiveness of new phototherapy regimen during winter, in supplement of standard topical treatmements, with oral vitamin D supplementation or not | Multicentre, cross-over, PRAgmatic trial in Atopic Dermatitis testing long-term control effectiveness of new phototherapy regimen during winter as an add-on therapy, coupled with oral vitamin D supplementation vs. placebo in a randomised, parallel-group trial - PRADA | EUCTR2015-000881-73-FR |
| Cholecalciferol in Newly Diagnosed Non-Hodgkin Lymphoma or Chronic Lymphocytic Leukemia With Vitamin D Deficiency | A Pilot Study of Vitamin D Replacement in Patients With Non-Hodgkin's Lymphoma or Chronic Lymphocytic Leukemia With Low Vitamin D Levels | NCT02553447 |
| Can Correction of Low Vitamin D Status in Infancy Program for a Leaner Body Composition? | Novel Functional Outcomes of Vitamin D in Infancy; Can Correction of Low Vitamin D Status Program for a Leaner Body Composition Phenotype? | NCT02563015 |
| Effects of Cholecalciferol on Osteoprotegerin Levels in Patients on Peritoneal Dialysis | Effects of Cholecalciferol on Osteoprotegerin Levels and Other Clinical Outcomes in Chronic Kidney Disease Patients on Peritoneal Dialysis: a Randomized Controlled Trial | NCT02598635 |
| Effect of Vitamin D (Cholecalciferol) supplementation on bone mineral metabolism in patient on Dialysis | Effects of cholecalciferol supplementation on Bone mineral metabolism in end stage renal disease patients in comparison with placebo | IRCT2015091323989N1 |
| Effectiveness of High Dose Vitamin D Supplementation in Stage III Colorectal Cancer | Prospective Pilot Study to Assess the Effectiveness of Vitamin D Supplementation for Patients Requiring Chemotherapy for Stage III Colorectal Cancer | NCT02603757 |
| Vitamin D Deficiency and Asthma Exacerbation | Effect of Vitamin D Repletion on Asthma Exacerbation | NCT02661191 |
| A Drug-drug Interaction Study of DP-R213 | A Randomized, Open-label, Single-dose, 3-period, 6-sequence Crossover Study to Evaluate the Safety and the Pharmacokinetics After Oral Concurrent Administration of Raloxifene, Cholecalciferol in Healthy Korean Male Subjects | NCT02654093 |
| Effect of 1-year cholecalciferol supplementation from early post-transplant preiod in kidney transplant recipients: a randomized controlled trial | Effect of 1-year cholecalciferol supplementation from early post-transplant preiod in kidney transplant recipients: a randomized controlled trial - Cholecalciferol supplementation from early period of kidney transplantation | JPRN-UMIN000020597 |
| Vitamin D Treatment for Painful Diabetic Neuropathy | Vitamin D for the Treatment of Painful Diabetic Neuropathy | NCT02737423 |
| The Pittsburgh Vitamin D Study: Vitamin D Supplementation in Vitamin D-deficient Subjects at Risk of Lung Cancer | Efficacy of Vitamin D Supplementation in Vitamin D-deficient Subjects at Risk of Lung Cancer (The Pittsburgh Vitamin D Study) | NCT02532062 |
| ADMINSTARTION OF LARGE DOSE OF VITAMIN D TO PREGNANT MOTHERS AT TIME OF DELIVERY AND ITS EFFECTS ON THE LEVELS OF VITAMIN D IN THE INFANTS AT 6 MONTHS OF AGE | ORAL SUPPLEMENTATION OF MOTHERS WITH HIGH DOSE VITAMIN D AND ITS EFFECTS ON VITAMIN D STATUS OF INFANTS AT 6 MONTHS: A DOUBLE BLINDED RANDOMIZED PLACEBO CONTROLLED TRIAL | CTRI/2014/08/004860 |
| Effect of an Inhibitor of Cholesterol Absorption on Vitamin D Levels | Estudo clínico Randomizado, Controlado e Duplo-cego do Impacto da inibição de um Transportador de Membrana do Colesterol na absorção da Vitamina D | NCT02234544 |
| Impact of Vitamin D on Endothelial Function and Blood Biomarkers Including CD28 Null Cells in CKD | Impact of Cholecalciferol on Endothelial Fucntion and Blood Biomarkers in Patients With Chronic Kidney Disease | NCT02005718 |
| Effect of Cholecalciferol, Soy Isoflavones in Patients With Irritable Bowel Syndrome | | NCT02026518 |
| Assessment of Dose Effectiveness of Vitamin D Supplementation During Pregnancy- a Dose Comparison Trial | Assessment of Dose Effectiveness of Vitamin D Supplementation During Pregnancy | NCT02215213 |
| Vitamin D to Improve Nutrition Prior to Bariatric Surgery and Investigate the Relationship With Negative Outcomes | The Effect of VItamin D Supplementation on Nutritional STatus and Adverse Outcomes in Bariatric Surgery (VISTA) | NCT02212652 |
| Efficacy of Vitamin D and Calcium Supplementation on the Prevention of Recurrences in BPPV | Efficacy of Vitamin D and Calcium Supplementation on the Prevention of Recurrences in Benign Paroxysmal Positional Vertigo: A Prospective Multicenter Randomized Trial | NCT02031692 |
| The effect of vitamin D on severity of primary dysmenorrhea and amount of menstrual bleeding | The effect of vitamin D on severity of primary dysmenorrhea and amount of menstrual bleeding compared with placebo in students living in dormitories of Tehran University of Medical Sciences: Randomized, Double-blind, clinical trial | IRCT201305212324N9 |
| The Link between Obesity And Vitamin D in bariatric patients with omega-loop bypass surgery | The Link between Obesity And Vitamin D in bariatric patients with omega-loop bypass surgery: a randomized controlled, double-blinded clinical supplementation trial - LOAD - LOAD | EUCTR2013-003546-16-AT |
| Controlled, Randomized, Four-arm Comparative, Open Label, Multi-centric Clinical Trial to Compare the Efficacy and Safety Parameters of the Once-a-week or Once-a-month Administered 7000 IU, or 30000 IU Vitamin D (Cholecalciferol) to a 1000 IU Dosage Applied Daily in Vitamin D Deficient Patients | | NCT02069990 |
| Vitamin D supplementation to persistent carriers of MRSA | ’D-STAPH’ Vitamin D supplementation to persistent carriers of MRSA – A double blind, randomised controlled trial - ’D-STAPH’ | EUCTR2014-000149-53-SE |
| Effects of Cholecalciferol Supplementation on Bone Health and Muscle Strength in Adults During Post-burn Period | Effects of a One Year Cholecalciferol Supplementation on Bone Health and Muscle Strength in Adults During Post-burn Period | NCT02092701 |
| Vitamin D3 and the Stress-axis in MS | Regulation of the Stress-axis by Vitamin D3 in Subjects With Multiple Sclerosis; a Double-blinded, Randomized, Placebo-controlled Study | NCT02096133 |
| Efficacy Study of Vitamin D Supplementation to Meticillin Resistant Staphylococcus Aureus (MRSA) Carriers | Vitamin D Supplementation to Persistent Carriers of MRSA - A Double Blind, Randomised Controlled Trial | NCT02178488 |
| Study To Understand Fall Reduction and Vitamin D in You | Vitamin D Supplements to Prevent Falls in Older Adults: A Dose-Response Trial | NCT02166333 |
| Effect of supplementation in treatment of patients with diabetic hemodialysis | Clinical trial of the effect of vitamin D supplementation compared with the placebo on metabolic profiles in patients with diabetic hemodialysis | IRCT201611155623N92 |
| Vitamin D and calcium and muscle strength | Vitamin D and calcium supplementation for improvement in skeletal muscle strength in young Asian Indian Males: A randomized controlled trial | CTRI/2014/07/004711 |
| Dosage Calculation for Vitamin D Treatment | The Effect of Oral Loading Doses of Cholecalciferol on the Serum Concentration of 25-OH-vitamin-D | NCT02186106 |
| Safety, Feasibility and Efficacy of Vitamin D Supplementation in Women With Metastatic Breast Cancer (SAFE-D) | Safety, Feasibility and Efficacy of Vitamin D Supplementation in Women With Metastatic Breast Cancer (SAFE-D) | NCT02186015 |
| Targeted Vitamin D Treatment of Schizophrenia-Associated Hyperprolinemia | Vitamin-D Treatment Targeted to Hyperprolinemia-Associated Schizophrenia. | NCT02197286 |
| Trial of High Dose Vitamin D in Patient's With Crohn's Disease | A Randomized Controlled Trial of High-Dose Vitamin D in Crohn's Disease | NCT02208310 |
| Cholecalciferol Supplementation for Anemia and Mineral and Bone Disorder in Hemodialysis Patients | Cholecalciferol Supplementation for Anemia and Mineral and Bone Disorder in Hemodialysis Patients (CHAMBER): A Multicenter, Double-blind, Randomized, Placebo-controlled Trial | NCT02214563 |
| The Effect of Vitamin D Supplementation on HIV-associated Platelet Hyperreactivity | The Effect of Vitamin D Supplementation on HIV-associated Platelet Hyperreactivity | NCT02217553 |
| Cholecalciferol Supplementation for Anemia and Mineral and Bone Disorder in Hemodialysis Patients (CHAMBER): A Multicenter, Double-blind, Randomized, Placebo-controlled Trial | Cholecalciferol Supplementation for Anemia and Mineral and Bone Disorder in Hemodialysis Patients (CHAMBER): A Multicenter, Double-blind, Randomized, Placebo-controlled Trial - Cholecalciferol Supplementation for Anemia and Mineral and Bone Disorder in Hemodialysis Patients (CHAMBER) | JPRN-UMIN000014819 |
| The GLOBAL Vitamin D Study. A Genomic, Transcriptomic, Proteomic and Metabolomic Approach | The GLOBAL Vitamin D Study. A Genomic, Transcriptomic, Proteomic and Metabolomic Approach to the Effects of Vitamin D in Adipose Tissue and Peripheral Blood | NCT02783924 |
| The effect of UVB irradiation compared with oral vitamin D supplementation on well-being of psycho-geriatric nursing home redidents. | The effect of UVB irradiation compared with oral vitamin D supplementation on well-veing in psycho-geriatric nursing home residents in the Netherlands. | NL-OMON26520 |
| Calcium (ca),Phosphorus( P) and 25-hydroxyvitamin D(25OHD)] in Infants Born = 32 PMA Gestational Weeks (GA) | The Impact of the Dose of Vitamin D (vitD) on the Metabolism of ca, p and Concentrations of 25OHD, Bone Status and Development of Premature Infants up to 2 Years of Age. Prospective, Randomized, Clinical Study | NCT03691896 |
| Trial of Vitamin D Supplementation in Cape Town Primary Schoolchildren | Trial of Vitamin D Supplementation in Cape Town Primary Schoolchildren | NCT02880982 |
| An Observational Post Marketing study to check the safety and tolerance of Atorsave D on patients with hyperlipidemia or statin related myalgia. | A Phase IV, Randomized, Open Label, Multicentre Study to Confirm the Safety and Tolerability of Atorsave D (Atorvastain & Cholecalciferol). | CTRI/2017/09/009644 |
| Efficacy and Safety of High Dose Vitamin D Supplementation in Patients Undergoing HSCT | Efficacy and Safety of High Dose Vitamin D Supplementation in Patients Undergoing Hematopoietic Stem Cell Transplantation | NCT03320915 |
| A clinical trial to study the effect of vitamin D supplementation in preventing disease relapse in patients with Inflammatory bowel disease which includes ulcerative colitis and crohns disease. | A study to assess the efficacy of vitamin D supplementation in preventing disease relapse in patients with inflammatory bowel disease. | CTRI/2017/11/010336 |
| Vitamin D supplementation and breast cancer prevention | Assessment the effect of vitamin D supplementation on plasma vitamin D levels, inflammatory and antioxidant biomarkers and factors associated with cell proliferation, differentiation, damage and appopotosis in breast cancer survivor | IRCT2017091736244N1 |
| Vitamine D in Drug Resistant Epilepsy | Effect of the Treatment of Vitamin D Deficiency in Drug-resistant Epilepsy | NCT03475225 |
| Pilot Study of OMEGA-3 and Vitamin D in High-Dose in Type I Diabetic Patients | A Pilot, Safety and Feasibility Trial of High-Dose Omega-3 Fatty Acids and High-Dose Cholecalciferol (Vitamin D) Supplementation in Type 1 Diabetes | NCT03406897 |
| Vitamin D Supplementation in Children | Effectiveness of Vitamin D Supplementation in the Prevention of Vitamin D Deficiency in Children. | NCT03402698 |
| Vitamin D dosing study in Intensive Care Unit patients | A Randomized Study of the effect of a Single Dose of Intramuscular Cholecalciferol on vitamin D levels in Critically Ill Adults | ACTRN12618000217202 |
| Benefit of Vitamin D supplementation in treatment of Polycystic ovary syndrome (PCOS) | Role of vitamin D supplementation in treatment of Polycystic ovary syndrome (PCOS) | CTRI/2018/02/012104 |
| Assessment of the effect of cholecalciferol ointment on atopic eczema | Assessment of the effects of vitamin D3 (cholecalciferol) ointment on atopic eczema in patients 2-18 years old | IRCT20100119003106N36 |
| Vitamin D and Muscle Metabolic Function | Vitamin D Contribution to Muscle Metabolic Function in Aged Adults | NCT02221596 |
| Vitamin D Supplementation and and Glycemic Indexes | Effect of Vitamin D Treatment on Glucose Homeostasis and Metabolism in Lebanese Older Adults: a Randomized Controlled Trial | NCT03478475 |
| Changes in Serum Vitamin D Level After Different Loading Doses of Cholecalciferol | Changes in Serum Vitamin D Level and Clinical Parameters After Different Loading Doses of Cholecalciferol (D3) in Young Adults With Vitamin D Deficiency | NCT03504280 |
| Monthly Boluses Versus Daily Doses for Correcting Blood Vitamin D Deficit in Obese Children and Adolescents | Treatment of Vitamin D Deficit in Obese Children and Adolescents: an Open Label Randomized Controlled Study Comparing the Efficacy of Two Oral Supplementation Regimens: Monthly Boluses Versus Daily Doses for Correcting Blood Vitamin D Level: OBEVIDOS | NCT03516968 |
| A relative Bioavailability study to understand the absorption of 2 different formulations of Vitamin D3 available in Indian Market | A Randomized,Open Label, Balanced, Two Treatment, Two period, Two Sequence, Single Dose, Crossover, Relative Bioavailability Study of Depura 5mL (60,000 IU) Oral Solution of Sanofi India Ltd, with Uprise D3 (Cholecalciferol) 60,000 IU capsule of Alkem Pharma, in Normal, Healthy, Adult, Male and Female Human Subjects under Fasting Conditions. - NA | CTRI/2018/05/013839 |
| Repeated-dose Safety, Efficacy, Pharmacokinetic and Pharmacodynamic of CTAP101, Immediate-release Calcifediol, High-dose Cholecalciferol, and Paricalcitol Plus Low-dose Cholecalciferol in Patients With Secondary Hyperparathyroidism, Chronic Kidney Disease 3-4 and Vitamin D Insufficiency | An Open-Label, Repeated-Dose Safety, Efficacy, Pharmacokinetic and Pharmacodynamic Study of Oral CTAP101 Capsules, Immediate- Release (IR) Calcifediol, High-Dose Cholecalciferol, and Paricalcitol Plus Low-Dose Cholecalciferol in Patients With Secondary Hyperparathyroidism, Stage 3 or 4 Chronic Kidney Disease and Vitamin D Insufficiency | NCT03588884 |
| Cholecalciferol on Hemodialysis Patients | Effect of Cholecalciferol on Hemodialysis Patients | NCT03602430 |
| Pilot Study of Vitamin D Screening Use in Peripheral Arterial Disease Patient Over Maximum Distance Walking | Evaluation of a Strategy for Systematic Screening for Vitamin D Deficiency and Treatment in Case of Deficiency, on the Improvement of the Maximum Walking Distance in Patients With Stage 2 Lower Limb Arterial Disease. | NCT03615833 |
| Cholecalciferol Supplementation Effect on Parathyroid Hormone in Hemodialysis Patients | Randomized Clinical Trial for The Evaluation of The Effects Of Cholecalciferol Supplementation On The Parathyroid Hormone In Hemodialysis Patients | NCT03648528 |
| Influence of Vitamin D Supplementation on Serum BDNF Level and Cognitive Function in Schizophrenia | The Influence of Vitamin D Supplementation on Serum Brain Derived Neurotrophic Factor Level and Cognitive Function in Schizophrenia Treated With Atypical Antipsychotic | NCT03284294 |
| REDUCTION OF POST-THYROIDECTOMY TRANSIENT HYPOCALCEMIA WITH VITAMIN D ADMINISTERED FOR ONE MONTH BEFORE SURGERY | REDUCTION OF POST-THYROIDECTOMY TRANSIENT HYPOCALCEMIA WITH CHOLECALCIFEROL 200,000 IU OS ADMINISTERED FOR ONE MONTH BEFORE SURGERY - REDUCTION OF POST-THYROIDECTOMY TRANSIENT HYPOCALCEMIA | EUCTR2013-002188-24-IT |
| Effect of vitamin D on inflammation and muscle damage in athletes | Evaluating the effect of Cholecalciferol supplementation on inflammatory markers and muscle damage indices in soccer players after a simulated soccer match | IRCT2017042613678N27 |
| Effect Of Vitamin D On Tooth Movement And Its Radiographic Changes In Bone Density | Effect Of Local Administration Of 1,25-Dihydroxycholecalciferol On Canine Distalization And The Assessment Of Bone Density Using Spiral Computed Tomography: A Randomized Clinical Trial | CTRI/2017/06/008902 |
| Cholecalciferol Supplementation in Critically Ill Patients With Severe Vitamin D Deficiency. | Cholecalciferol Supplementation in Critically Ill Patients With Severe Vitamin D Deficiency in Intensive Care Unit- A Randomized Controlled Trial. | NCT02868827 |
| Cholecalciferol Supplementation in Strengthening Inspiratory Muscles in Cholecalciferol-Deficient Patients With Chronic Obstructive Pulmonary Disease | Effect of Once Daily Oral Vitamin D3 Supplementation on Inspiratory Muscle Strength in Vitamin D3-Deficient COPD Patients | NCT02877641 |
| Effect of Three Different Doses of Oral Cholecalciferol on 25-Hydroxyvitamin D Changes Among Epilepsy Patients With Hypovitaminosis D | EFFECT OF THREE DIFFERENT DOSES OF ORAL CHOLECALCIFEROL (1000 IU, 3000 IU AND 6000 IU DAILY) ON SERUM 25-HYDROXYVITAMIN D CHANGES AMONG EPILEPSY PATIENTS WITH HYPOVITAMINOSIS D: A RANDOMIZED PROSPECTIVE STUDY | NCT02890823 |
| Resurgence in sternotomy fortified by vitamin D supplementation in cardiac surgery | Resurgence in sternotomy fortified by vitamin D supplementation in cardiac surgery - REINFORCE-D | EUCTR2016-002606-39-CZ |
| Effect of a One Time Dose of Cholecalciferol on Serum Concentration of 25-Hydroxyvitamin D and Macrophages | Effect of a One Time Dose of Cholecalciferol on Serum Concentration of 25-Hydroxyvitamin D and Macrophages | NCT02920502 |
| Randomized trial of vitamin D supplementation (cholecalciferol) for vitiligo and rhodendrol-induced leucoderma patients. | Randomized trial of vitamin D supplementation (cholecalciferol) for vitiligo and rhodendrol-induced leucoderma patients. - Randomized trial of vitamin D supplementation (cholecalciferol) for vitiligo and rhodendrol-induced leucoderma patients. | JPRN-UMIN000024033 |
| Can we with vitamin D, improve the immune system? | Can we with vitamin D3, improve the innate immune system? | EUCTR2016-003673-18-BE |
| Effects of Antarctic Environment on Vitamin D Status and Health Risk Biomarkers of Its Inhabitants | Effects of Antarctic Environment on Vitamin D Status and Health Risk Biomarkers of Its Inhabitants | NCT02930434 |
| The Effects of Oral Vitamin D Supplementation on the Prevention of Peritoneal Dialysis-related Peritonitis | The Effects of Oral Vitamin D Supplementation on the Prevention of Peritoneal Dialysis-related Peritonitis | NCT03264625 |
| Vitamin D Supplementation in Women With DCIS and/or LCIS | An Exploratory Pilot Study of Vitamin D Supplementation in Women With DCIS and/or LCIS | NCT02936999 |
| A study to assess the health and nutritional status of children in rural areas along with the use of vitamin D and zinc supplements to improve immunity | Studies in health and nutritional status of rural Indian children with special reference to role of vitamin D and zinc in prevention of infections | CTRI/2014/08/004854 |
| Vitamin D Supplementation and Glycemic Outcomes | Effect of Treating Vitamin D Deficiency on Glucose Homeostasis and Metabolic Markers in Apparently Healthy, Young or Aged, Normal-weight or Obese Lebanese People | NCT02942732 |
| Comparison between intake of a monthly dose of vitamin D (D-CURE®) against a daily dose of vitamin D (VISTA-D3®) | A phase IV, randomised, parallel study to compare a monthly administration of vitamin D3 (D-CURE®) to a daily administration of vitamin D3 (VISTA-D3®). | EUCTR2016-003755-29-BE |
| Assessing the Impact of a Mode of Vitamin D Supplementation (Sequential Dose vs Daily Dose) on the Incidence of Hypercalciuria in Subjets Aged From 2 to 18 Years | Evaluation de l'Impact d'un Mode de supplémentation en Vitamine D (Dose séquentielle vs Dose Quotidienne) Sur l'Incidence de l'Hypercalciurie Chez Des Sujets Des départements du Gard et de l'Hérault agés de 2 à 18 Ans. Etude contrôlée randomisée en 2 Groupes parallèles | NCT02975492 |
| 'Palliative-D' Vitamin D to Palliative Cancer Patients | 'Palliative-D' Vitamin D Supplementation to Palliative Cancer Patients - A Double Blind, Randomised Controlled Trial | NCT03038516 |
| Vitamin D supplementation in treating periodontitis | Effects of vitamin D supplementation during a non-surgical treatment of generalized chronic periodontitis: a randomized double-blinded placebo-controlled clinical trial - Vitamin D supplementation in treating periodontitis | EUCTR2016-005062-61-BE |
| Blood Pressure in Blacks and Calcium (BBC) and Vitamin D Study | Blood Pressure in Blacks and Calcium (BBC) and Vitamin D Study | NCT03070483 |
| Vitamin D supplementation for patients with terminal cancer diagnosis - The patients will receive randomly either Vitamin D or inactive substance (placebo). Neither the patients or study personnel will know what treatment the patients will receive. | Vitamin D supplementation to palliative cancer patients - A double blind, randomised controlled trial - Palliative-D | EUCTR2017-000268-14-SE |
| Vitamin D supplementation in patients with type 2 diabetes mellitus | Effect of vitamin D supplementation on oxidative stress and inflammation in patients with type 2 diabetes mellitus | CTRI/2017/03/008236 |
| Effect Of Curcuma Xanthorrhiza and Vitamin D3 Supplementation in SLE Patients With Hypovitamin D | Effect Of Curcuma Xanthorrhiza Supplementation In Systemic Lupus Erythematosus Patients (SLE) With Hypovitamin D Which Were Given Vitamin D3 Towards Disease Activity (SLEDAI), Interleukin-6 (IL-6) And Tumor Growth Factor-ß1 (TGF-ß1) Serum | NCT03155477 |
| Effects Vitamin D Suppletion on Postprandial Leukocyte Activation | Effects of High and Low Dose Vitamin D Suppletion on Postprandial Leukocyte Activation, Oxidative Stress and Vascular Function in Healthy Overweight and Obese Females | NCT01967459 |
| Supplementation With Cholecalciferol in Dialysis Patients | Impact of Treatment With Cholecalciferol on Immunological Markers in Patients With Hypovitaminosis D on Dialysis | NCT01974245 |
| Oral Cholecalciferol in Prevention of Type 2 Diabetes Mellitus | Oral Cholecalciferol in Prevention of Type 2 DM in Prediabetic Population With Vitamin D Insufficiency | NCT01436916 |
| A randomised control trial of high dose oral vitamin D in type 2 diabetes | A randomised control trial of high dose cholecalciferol in type 2 diabetes to assess C-peptide secretion. | ACTRN12611001023943 |
| Vitamin D Levels in the Skin of Healthy Subjects After Oral Supplementation | Pilot Study on the Bioactivity of Vitamin D in the Skin After Oral Supplementation | NCT01447355 |
| Improving the Understanding of the Response to Vitamin D Supplementation | Improving the Understanding of the Response to Vitamin D Supplementation | NCT01465178 |
| Serum 25-hydroxy Vitamin D [25(OH)D] Levels, Supplemental Vitamin D, and Parathyroid Hormone Levels in Premature Infants | Serum 25-hydroxy Vitamin D [25(OH)D] Levels, Supplemental Vitamin D, and Parathyroid Hormone Levels in Premature Infants | NCT01469650 |
| Vitamin D supplementation in type 2 Diabetes Mellitus. | A randomized clinical trial to study the effect of vitamin D supplementation on glycemic control in type 2 Diabetes Mellitus. | NL-OMON26335 |
| Effects of Cholecalciferol Supplementation in Patients With Chronic Heart Failure and LOw vITamind D Levels | Effects of Cholecalciferol Supplementation in Patients With Chronic Heart Failure and LOw vITamind D Levels. A Phase 2 Randomized Double Blind Study | NCT01477801 |
| Vitamin D supplementation in Gestational Diabetes Mellitus. | A randomized clinical trial to study the effect of vitamin D supplementation on insulin sensitivity in Gestational Diabetes Mellitus. | NL-OMON27860 |
| Study of Vitamin D Supplementation Tailored to Vitamin D Deficiency in Breast Cancer Patients | Randomized Phase III Trial Comparing Conventional Vitamin D Supplementation vs. Vitamin D Supplementation Tailored to Vitamin D Deficiency in Breast Cancer Patients Treated by Neoadjuvant or Adjuvant Chemotherapy. | NCT01480869 |
| Vitamin D and Walking Ability in Patients With Peripheral Artery Occlusive Disease | Phase 4 Study of 25-hydroxy-vitamin D in Patients With Peripheral Artery Occlusive Disease and Walking Ability | NCT01559974 |
| Vitamin D and Prostate Cancer: A Clinical Study Enrolling Subjects Undergoing Prostatectomy | Vitamin D and Prostate Cancer: A Randomized Clinical Study | NCT02726113 |
| Cholecalciferol Supplementation in Kidney Failure Study: Effect on Quality of Life and Muscle Strength | Cholecalciferol Supplementation in Kidney Failure Study: Effect on Quality of Life and Muscle Strength | ACTRN12611001260910 |
| Vitamin D3 Supplementation Pilot Study | Pilot Study of Vitamin D3 Supplementation and Outcomes in Vitamin D Deficient Obese, African American Adolescents | NCT01546103 |
| A Pilot Study of the Effect of Dietary Fat Type and Amount on Vitamin D3 Absorption | A Pilot Study of the Effect of Dietary Fat Type and Amount on Vitamin D3 Absorption | NCT01508845 |
| Cholecalciferol (Vitamin D) Intervention to Prevent Respiratory Infection Study | A double-blind randomised controlled trial to evaluate the efficacy of 20,000 IU/wk cholecalciferol in reducing respiratory tract infection in a cohort of healthy young adults | ACTRN12612000054819 |
| The effect of vitamin D in hospitalized children for respiratory infection treatment. | The effects of vitamin D in pneumonia treatment in hospitalized children, double-blind randomized clinical trial | IRCT2014052617843N2 |
| Cholecalciferol in Treating Patients With Acute Myeloid Leukemia Undergoing Intensive Induction Chemotherapy | Vitamin D3 Supplementation in Acute Myeloid Leukemia: Pharmacokinetic Study | NCT01521936 |
| Vitamin D supplementation in pregnancy: regimens and long term effects on offspring | Vitamin D supplementation in pregnancy: regimens and long term effects on offspring | CTRI/2012/02/002395 |
| Vitamin D Metabolism in Chronic Kidney Disease Patients | Vitamin D Metabolism in Chronic Kidney Disease Patients With Vitamin D Deficiency Treated With Cholecalciferol | NCT01528176 |
| Vitamin D for Enhancing the Immune System in Cystic Fibrosis (DISC Study) | Vitamin D for Enhancing the Immune System in Cystic Fibrosis | NCT01426256 |
| Vitamin D as a Modifier of Serum Hepcidin in Children With Chronic Kidney Disease | Cholecalciferol as a Modifier of Serum Hepcidin in Children With Chronic Kidney Disease | NCT01532349 |
| VITamine D Supplementation in RenAL Transplant Recipients - VITALE | Prospective Double Blind Multicentre Randomized Trial of Vitamine D Estimating the Profit of a Treatment by Vitamin D3 at the Dose of 100000 UI by Comparison With a Treatment in the Dose of 12 000 UI at Renal Transplanted Patients | NCT01431430 |
| Vitamin Deficiency in Immigrants, a Treatment Study | A Study, Four Parallel Arms, Included Two Arms Open Randomisation to Different Doses of Vitamin D, for Assessment of Efficacy of Treatment With Vitamin D at Vitamin D Deficiency, Vitamin D Insufficiency and Suboptimal Levels of Vitamin D | NCT01419119 |
| The Effect of a Meal on Vitamin D Absorption | Meal Effects on the 25OHD3 Response to Supplemental Vitamin D3 | NCT01268176 |
| Vitamin D Effect on Calcium Absorption on Persons on Hemodialysis | The Effect of Oral Cholecalciferol (Vitamin D3) on Calcium Absorption in Persons on Long-term Hemodialysis | NCT01325610 |
| Vitamin D Supplementation in Chronic Stable Heart Failure | Vitamin D Supplementation in Chronic Stable Heart Failure: a Randomized, Double-blind, Placebo-controlled Trial | NCT01292720 |
| The vitamin D and breast feeding study | Intermittent maternal cholecalciferol supplementation to prevent vitamin D deficiency in the breast feeding infant and lactating mother. | ACTRN12611000108910 |
| Does cholecalciferol (vitamin D3) improve patient-level outcomes for people with chronic kidney disease on dialysis | A randomised placebo controlled trial to assess the effects of therapy with cholecalciferol on biochemical, bone and patient-level outcomes in patients undergoing haemodialysis (chronic kidney disease stage 5D; CKD 5D) | ACTRN12611000199910 |
| Vitamin D3 Supplementation in Dialysis Patients | A Randomized, Placebo-Controlled, Double Blind Study Evaluating the Effect of Cholecalciferol on Vasoactive Hormones, Heart Function, Arterial Stiffness, and Blood Pressure in Dialysis Patients. | NCT01312714 |
| Study of vitamin D therapy to improve heart function and immune response in patients with chronic kidney disease (CKD) | Impact of vitamin D supplementation on left ventricular mass on cardiac magnetic resonance imaging and immune regulation in chronic kidney disease: a randomised placebo-controlled trial | ISRCTN47936804 |
| Changes in Breast Cancer Biomarkers Using Synergistic Prostaglandin Inhibitors | Breast Cancer Prevention Using Synergistic Prostaglandin Inhibitors (The Vitamin D/Celecoxib Study) | NCT01425476 |
| Vitamin D Supplementation of Lactating Mothers | Effect of Vitamin D Supplementation During Lactation on Vitamin D Status, Bone Mineralisation and Body Composition of Mother and Their Exclusively Breastfed Infants. | NCT01506557 |
| Effects of Vitamin D Supplementation in Subjects With New Onset of Type 1 Diabetes | Placebo Controlled Pilot Study on Effects of Vitamin D Supplementation in Subjects With New Onset of Type 1 Diabetes on Immunological, Endocrine and Metabolic Parameters: Step 2 in the Austrian Diabetes Prevention Programme | NCT01390480 |
| Pilot Study of Vitamin D Supplementation in Heart Failure | A Randomized, Double-Blind, Placebo-Controlled Trial of Vitamin D in Heart Failure: A Pilot Study | NCT01388855 |
| Vitamin D Supplementation in Systemic Lupus Erythematosus | Evaluation of Immunologic Response After Vitamin D Supplementation in Patients With Systemic Lupus Erythematosus | NCT01413230 |
| A-15 week, double-blind, randomized, active-controlled, multicenter study to evaluate the efficacy and safety of Alendronate plus Vitamin D3 in women with osteoporosis | A-15 week, double-blind, randomized, active-controlled, multicenter study to evaluate the efficacy and safety of Alendronate plus Vitamin D3 in women with osteoporosis - Vit.D levels after alendronate plus vitamin D3 in postmenopausal women | EUCTR2010-024150-10-BG |
| Vitamin D and Staphylococcus Aureus in the Diabetes Study | Vitamin D and Staphylococcus Aureus in the Diabetes Study | NCT01395290 |
| Cholecalciferol(25-[OH]-Vitamin D) in Treating Patients With Colorectal Cancer | Evaluation of the Effect of 25-OH-Vitamin D3 Therapy on 15-Prostaglandin Dehydrogenase Expression in Primary Tumor and Normal Colorectal Mucosa in Patients With Colorectal Cancer | NCT01403103 |
| Vitamin D Supplementation on Cardiovascular Risk Factors | The Effect of Vitamin D Supplementation on Cardiovascular Risk Factors Among Hispanics and African Americans With Type 2 Diabetes | NCT01412710 |
| A 15-week, double-blind, randomized, active-controlled, multicenter study to evaluate the efficiency and safety of Alendronate plus Vitamin D3 in the prevention of Vitamin D3 insufficiency and deficiency in women with osteoporosi | A 15-week, double-blind, randomized, active-controlled, multicenter study to evaluate the efficiency and safety of Alendronate plus Vitamin D3 in the prevention of Vitamin D3 insufficiency and deficiency in women with osteoporosis - Vit.D levels after alendronate plus vitamin D3 in postmenopausal women | EUCTR2010-024150-10-PL |
| Does vitamin D supplementation affect well-being and symptoms of depression during the Winter season in health service staff? | The role of vitamin D supplementation on well-being and symptoms of depression during the Winter season in health service staff. | EUCTR2011-002585-20-DK |
| Effect of Vitamin D Supplementation on Muscular Strength, Musculoskeletal Pain and Headache | Effect of Vitamin D Supplementation on Muscular Strength, Musculoskeletal Pain and Headache in Immigrants Living in Norway. Randomized, Double Blinded, Placebo Controlled Study | NCT01263288 |
| Phase III Clinical Trial of DP-R206 and Bonvia In Postmenopausal Women With Osteoporosis | A Multicenter, Randomized, Double-blind, Active-controlled, Phase III Clinical Trial to Evaluate the Efficacy and Safety of DP-R206 and Bonviva for the Improvement of Vitamin D in Postmenopausal Women With Osteoporosis | NCT01581320 |
| Vitamin D and pharmakogenetics in glucose metabolism | A randomized, double-blind, placebo controlled trial to evaluate the effects of vitamin D supplementation on metabolic and fertility parameters in PCOS women | EUCTR2011-000994-30-AT |
| Vitamin D and testosterone in men | A randomized, double-blind, placebo controlled trial to evaluate the effects of vitamin D supplementation on androgen levels in hypogonadal men - Vitamin D&TT | EUCTR2011-003575-11-AT |
| Cholecalciferol in Improving Survival in Patients With Newly Diagnosed Cancer With Vitamin D Insufficiency | Effect of Vitamin D Replacement on Tumor Response and Survival Parameters for Vitamin D Insufficient Patients With Cancer | NCT01787409 |
| A Factorial Randomized Controlled Trial of Correcting Anemia and Native Vitamin D Supplementation in Kidney Transplant Recipients: CANDLE-KIT trial | A Factorial Randomized Controlled Trial of Correcting Anemia and Native Vitamin D Supplementation in Kidney Transplant Recipients: CANDLE-KIT trial - Correcting Anemia and Native Vitamin D Supplementation in Kidney Transplant Recipients: CANDLE-KIT trial | JPRN-UMIN000009970 |
| Study to evaluate the safety and efficacy of CitrokalciumD 300mg/300 NE tablets for supplementation in patients with calcium and vitamin D deficiency conditions. | Open label multicentric study to evalute the safety and efficacy of CitrokalciumD 300 mg/300 NE tablets in patients assessed deficiency for supplementation of calcium and vitamin D. - Study to evaluate the safety and efficacy of the combination of calciumcitrate and vitamin D | EUCTR2013-001267-23-HU |
| Prevention of Vitamin D Deficiency Following Pediatric CHD Surgery: a Phase II Dose Evaluation Randomized Controlled Trial Comparing Usual Care With a High Dose Pre-operative Supplementation Regimen Based on the Institute of Medicine Daily Upper Tolerable Intake Level | Prevention of Post-Cardiac Surgery Vitamin D Deficiency in Children With Congenital Heart Disease: A Pilot Dose Evaluation Randomized Controlled Trial | NCT01838447 |
| Vitamin D Supplementation in Glomerular Disease | Pilot Study: Efficacy and Safety of Vitamin D Supplementation in Glomerular Disease | NCT01835639 |
| Vitamin D Status in Lower Extremity Joint Replacement Surgery Patients | Bolus vs. Divided Cholecalciferol Dosing to Optimize Perioperative Vitamin D Status for Joint Replacement Surgery | NCT01858051 |
| Cholecalciferol Supplementation on Disease Activity, Fatigue and Bone Mass on Juvenile Systemic Lupus Erythematosus. | Effects of Cholecalciferol Supplementation on Disease Activity, Fatigue and Bone Mass on Juvenile Onset Systemic Lupus Erythematosus. | NCT01892748 |
| Cholecalciferol Supplementation for Sepsis in the ICU | The Effect of Cholecalciferol Supplementation on Vitamin D Status in Sepsis | NCT01896544 |
| To Evaluate the Efficacy and the Safety of Monthly Versus Weekly Oral Risedronate With Vitamin D in Compliance, Improvement of Vitamin D and BMD in Korean Postmenopausal Osteoporotic Women | For 12months, the Multi Center, Randomized, Open-label Comparative Clinical Study to Evaluate the Efficacy and the Safety of Monthly(RisenexM Group) Versus Weekly Oral Risedronate(Risenexsplus Group) With Vitamin D in Compliance, Improvement of Vitamin D and BMD in Korean Postmenopausal Osteoporotic Women(Phase IV) | NCT01904110 |
| Vitamin D to Improve Endothelial Function in SLE | Vitamin D Repletion to Improve Endothelial Function in Lupus Patients | NCT01911169 |
| High dose vitamin D treatment in Crohn's disease affects the gut immune cells | Mucosal immune regulation by high dose vitamin D treatment in Crohn’s disease - MirViDiC | EUCTR2013-000971-34-DK |
| Vitamin D and Severe Asthma Exacerbations | A Phase I Trial for Children With Vitamin D Insufficiency and High Risk of Severe Asthma Exacerbations | NCT01921894 |
| A Single Wintertime Dose of Vitamin D3 to Prevent Winter Decline in Vitamin D Status in Healthy Adults | A Single Wintertime Dose of Vitamin D3 to Prevent Winter Decline in Vitamin D Concentrations in Healthy Adults: A Pilot Study | NCT01924910 |
| Effect of Single Oral Dose of Vitamin D in Primary Dysmenorhea | Improvement of Primary DysmenorrheaCaused by a Single Oral Dose of Vitamin D:Results of a Randomized, Double-blind,Placebo-Controlled Study | IRCT2013022312582N1 |
| The effect of vitamin D supplementation on cardiovascular risk factors in subjects with low serum 25-hydroxyvitamin D levels | The effect of vitamin D supplementation on cardiovascular risk factors in subjects with low serum 25-hydroxyvitamin D levels | EUCTR2013-003514-40-NO |
| Effects of high and low dose vitamin D on postprandial leukocyte activation, oxidative stress and vascular function in healthy overweight and obese females | Effects of high and low dose vitamin D on postprandial leukocyte activation, oxidative stress and vascular function in healthy overweight and obese females - DOSFEM | NL-OMON38592 |
| Vitamin D, SSRIs and the Musculoskeletal System | Depression - Can Vitamin D Alleviate Symptoms of Depression Not Cured by Antidepressants as Well as Alleviate Negative Skeletal Effects Caused by Antidepressants? | NCT01932931 |
| Deferasirox, Cholecalciferol, and Azacitidine in the Treatment of Newly Diagnosed AML Patients Over 65 | A Phase II Study Examining the Use of Deferasirox, Cholecalciferol, and Azacitidine in the Treatment of Newly Diagnosed Acute Myelogenous Leukemia (AML) in Elderly Patients | NCT02341495 |
| Vitamin D Supplementation for Adults With Neurofibromatosis Type 1 (NF1) | A Phase II Trial on the Effect of Low-Dose Versus High-Dose Vitamin D Supplementation on Bone Mass in Adults With Neurofibromatosis Type 1 (NF1) | NCT01968590 |
| Maternal Vit D Supplements & Infant and Maternal Biomarkers & Outcomes in Southern Ethiopia | Effects of Maternal Vitamin D Supplementation on Markers of Vitamin D Status and Related Infant and Maternal Outcomes in Southern Ethiopia | NCT02210884 |
| Vitamin D Supplementation and Regulatory FoxP3+ T Cells in the GUT | Pilot Study to Assess the Effects of Vitamin D Supplementation on the Number of Regulatory FoxP3+ T Cells in the Gastrointestinal Mucosa in Healthy Women and Men: Step 3 in the Austrian Diabetes Prevention Programme | NCT01538485 |
| Comparison of the efficacy of two regimens of Vitamin D supplementation in preventing vitamin D deficiency among preterm infants. | : A Randomized double blind controlled trial comparing two regimens of Vitamin D supplementation in preterm neonates - BOND | CTRI/2012/11/003154 |
| Vitamin D for Established Type 2 Diabetes (DDM2) | Vitamin D for Established Type 2 Diabetes (DDM2) | NCT01736865 |
| Cholecalciferol and Flu Vaccine in Treating Healthy Participants | Immune Responses to Influenza Vaccine Among Healthy Employees Working at Roswell Park Cancer Institute and the Relationship to Vitamin D Status | NCT01561989 |
| Vitamin D Supplementation in Overweight/Obese African American Adults and Youth (D-SUNNY) | Vitamin D Supplementation in Overweight/Obese African American Adults and Youth (D-SUNNY) | NCT01583621 |
| A randomized clinical trial to study the effect of vitamin D supplementation on insulin sensitivity in Gestational Diabetes Mellitus | A randomized clinical trial to study the effect of vitamin D supplementation on insulin sensitivity in Gestational Diabetes Mellitus - Vitamin D supplementation in Gestational Diabetes | NL-OMON39103 |
| Clinical Trial of Phenylbutyrate and Vitamin D in Tuberculosis (TB) | Clinical Trial of Oral Phenylbutyrate and Vitamin D Adjunctive Therapy in Pulmonary Tuberculosis in Bangladesh: a Pilot Study | NCT01580007 |
| Hepatitis immunisation and vitamin D supplementation | The effect of vitamin D supplementation on immune response following hepatitis B vaccine in incident and prevalent hemodialysis patients with vitamin D deficiency - Devitahep | EUCTR2011-004621-26-AT |
| Effect of Omega-3 Fatty Acid on Vitamin D Activation | Effect of Omega-3 Fatty Acid on Vitamin D Activation in Hemodialysis Patients | NCT01596842 |
| Vitamin D Supplementation for Extremely Preterm Infants | Early Vitamin D Supplementation for Prevention of Respiratory Morbidity in Extremely Preterm Infants: A Randomized Clinical Trial | NCT01600430 |
| Wheezing in Black Preterm Infants: Impact of Vitamin D Supplementation Strategy | Wheezing in Black Preterm Infants: Impact of Vitamin D Supplementation Strategy | NCT01601847 |
| Vitamin D Deficiency and Postoperative Hypocalcemia | Correction of Vitamin D Deficiency to Prevent Postoperative Hypocalcemia After Thyroidectomy | NCT01632514 |
| The Variability of 25-hydroxyvitamin D Response From Crystalline 25-hydroxyvitamin D3 | The Variability of 25-hydroxyvitamin D Response From Crystalline 25-hydroxyvitamin D3 Compared to Native Vitamin D3: A Short Term Pharmacokinetic Study | NCT01633658 |
| Study to Evaluate the Pharmacokinetics of Vitamin D (Cholecalciferol) in Patients Undergoing Obesity Surgery in a Deficit Situation and After Standardization | Study to Evaluate the Pharmacokinetics of Vitamin D (Cholecalciferol) in Patients Undergoing Obesity Surgery in a Deficit Situation and After Standardization | NCT01637155 |
| Vitamin D supplementation and its effect on markers of oxidative stress and antioxidant in asthmatic children. | Effect of oral vitamin D supplementation on serum markers of oxidative stress and antioxidant in asthmatic children and its comparison with control group. | IRCT2014053117843N3 |
| A Prospective Open-label Comparison of Two Vitamin D3 Repletion Strategies in Vitamin D Deficient Patients | A Randomized Prospective Open-label Comparison of Two Vitamin D3 Repletion Strategies in Vitamin D Deficient Patients | NCT01650883 |
| The effect of high dose cholecalciferol orally on serum of vitamin D in elderly with osteoarthritis of the hip | The effect of high dose cholecalciferol orally on serum of vitamin D in elderly with osteoarthritis of the hip - cholecalciferol in elderly with osteoarthritis of the hip | NL-OMON37463 |
| Efficacy and Safety Study of Risedronate, Cholecalciferol Combination Tablet in Patients With Osteoporosis | For 12months, the Multi Center, Randomized, Open-label, Active Controlled Comparative Clinical Study to Assess the Efficacy and the Safety of Risedronate, Cholecalciferol Combination Tablet in Patients With Osteoporosis | NCT01675297 |
| The Significance of Vitamin D Storage in Adipose Tissue | The Significance of Vitamin D Storage in Adipose Tissue | NCT01728987 |
| High Dose Preoperative Cholecalciferol Supplementation and Perioperative Vitamin D Status | Effect of High-dose Cholecalciferol Supplementation on Perioperative Vitamin D Status in Colorectal Surgery Patients | NCT01689779 |
| A Study of Vitamin D supplementation in breastfeeding young children | AStudy of Vitamin D supplementation regimens in Exclusively Breastfed term infants | CTRI/2012/09/002958 |
| The effect of vitamin D on primary menstrual pain | Effect of vitamin D on menstrual pain in women of childbearing age in comparison with placebo; double-blind randomized controlled clinical trial | IRCT2012100110980N1 |
| Commercial study conducted to determine the most adequate supplementation of vitamin D in patients showing vitamin D deficiency | A phase IV, randomised, double-blinded, parallel study to estimate the dose-response of vitamin D (D-CURE®) supplementation on the 25-hydroxyvitamin D serum concentration in patients with vitamin D deficiency. | EUCTR2012-004917-14-BE |
| Vitamin D3 supplementation in adult patients with non-cystic fibrosis bronchiectasis - a feasibility study | Vitamin D3 supplementation in bronchiectasis - a feasibility study | ACTRN12612001222831 |
| The impact of vaginal progesterone and vitamin D3 on the treatment of unexplained recurrent abortion | Effect of concomitant administration of vaginal progesterone and vitamin D3 in the treatment of unexplained recurrent abortion in pregnant women | IRCT2013100114853N1 |
| Vitamin D leading to healthy lungs | Circulating vitamin D with surfactant level and lung function in north Indian women | CTRI/2013/10/004062 |
| To study the prevalence of vitamin D deficiency in pregnant women and the effect of supplementation in preventing adverse pregnancy outcome | Vitamin D deficiency in pregnancy: Its prevalence and role of supplementation in preventing adverse maternal and fetal outcome: A double blind randomized placebo-controlled trial. | CTRI/2013/10/004056 |
| The Effects of Interferon Beta Combined With Vitamin D on Relapsing Remitting Multiple Sclerosis Patients | A One Year Prospective, Randomized, Double Blind Interventional Study to Assess Tolerability, Quality of Life and Immunomodulation With Interferon Beta Combined With Vitamin D in Patients With Relapsing Remitting Multiple Sclerosis | NCT01005095 |
| A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with head and neck squamous carcinoma to prevent relapse after operation | A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with head and neck squamous carcinoma to prevent relapse after operation - Amateras project VIII | JPRN-UMIN000002638 |
| A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with epithelial ovarian cancer to prevent relapse after operation and chemotherapy | A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with epithelial ovarian cancer to prevent relapse after operation and chemotherapy - Amateras VII | JPRN-UMIN000002637 |
| """Eficacia y seguridad de una administración oral diaria de S06911 (combinación fija de ranelato de estroncio 2g / vitamina D3 1000UI) en la deficiencia de vitamina D para el tratamiento de la osteoporosis en mujeres postmenopáusicas y hombres"" Estudio internacional, de fase III, prospectivo, de 12 meses de duración en abierto con un grupo de tratamiento. The efficacy and safety of a daily oral administration of S06911 (strontium ranelate 2g/vitamin D3 1000 IU fixed combination) on vitamin D deficiency in the treatment of osteoporotic postmenopausal women and men. A 12 month, prospective, open labelled, one treatment group international phase III study." | """Eficacia y seguridad de una administración oral diaria de S06911 (combinación fija de ranelato de estroncio 2g / vitamina D3 1000UI) en la deficiencia de vitamina D para el tratamiento de la osteoporosis en mujeres postmenopáusicas y hombres"" Estudio internacional, de fase III, prospectivo, de 12 meses de duración en abierto con un grupo de tratamiento. The efficacy and safety of a daily oral administration of S06911 (strontium ranelate 2g/vitamin D3 1000 IU fixed combination) on vitamin D deficiency in the treatment of osteoporotic postmenopausal women and men. A 12 month, prospective, open labelled, one treatment group international phase III study." | EUCTR2009-014270-18-ES |
| A randomized, double blind, placebo controlled, phase II, multi-centre pilot study to investigate the effects of vitamin D2 or D3 supplementation on metabolic parameters in people at risk of type 2 diabetes. - Vitamin D Supplementation in People at Risk of Type 2 Diabetes V1.3 | A randomized, double blind, placebo controlled, phase II, multi-centre pilot study to investigate the effects of vitamin D2 or D3 supplementation on metabolic parameters in people at risk of type 2 diabetes. - Vitamin D Supplementation in People at Risk of Type 2 Diabetes V1.3 | EUCTR2009-011264-11-GB |
| A pilot trial of vitamin D for the reduction of chronic disease and mortality in older adults. | A randomised placebo-controlled double-blind trial with participants randomised to receive either placebo, 60,000 International Units per month (IU/month) of vitamin D3 or 30,000 IU/month of vitamin D3, each taken once a month for 12 months with an aim to determine the feasibility and inform the design of a large-scale randomised, placebo-controlled chemoprevention trial of vitamin D3 (cholecalciferol) for the reduction of total mortality. | ACTRN12609001063202 |
| Effects of Vitamin D Supplement Before and During Pregnancy on Birth Weight | Effects of Vitamin D Supplement Before and During Pregnancy on Complications, Birth Weight and Bone Mineral Density During Lactation | NCT01038453 |
| Vitamin D Status and Dose Response in Infants | Vitamin D Status and Dose Response in Infants | NCT01042561 |
| The efficacy and safety of a daily oral administration of S06911 (strontium ranelate 2g/vitamin D3 1000 IU fixed combination) on vitamin D insufficiency in the treatment of osteoporotic postmenopausal women and men. A prospective, international phase III study with a 6-month double-blind period to assess the efficacy and safety of a daily oral administration of S06911 versus S12911 (strontium ranelate 2g) and a 6-month open-labelled extension for a subgroup of patients to assess safety of a daily oral administration of S06911. | The efficacy and safety of a daily oral administration of S06911 (strontium ranelate 2g/vitamin D3 1000 IU fixed combination) on vitamin D insufficiency in the treatment of osteoporotic postmenopausal women and men. A prospective, international phase III study with a 6-month double-blind period to assess the efficacy and safety of a daily oral administration of S06911 versus S12911 (strontium ranelate 2g) and a 6-month open-labelled extension for a subgroup of patients to assess safety of a daily oral administration of S06911. | EUCTR2009-013935-39-FI |
| The Effect of Vitamin D Statues on Endothelial Function | The Effect of Vitamin D Statues on Endothelial Function | NCT01049048 |
| Clinical Trial of Vitamin D3 to Reduce Cancer Risk in Postmenopausal Women | Clinical Trial of Vitamin D3 to Reduce Cancer Risk in Postmenopausal Women | NCT01052051 |
| Efficacy of Daily Vitamin D3 Supplementation in Normal Weight Adolescents | A Pilot Study to Evaluate the Efficacy of Daily Vitamin D3 Supplementation in Normal Weight Adolescents | NCT01058720 |
| VItamin D treatment Effect on retinal nerve fiber loss after Optic neuritis - VIDEO-trial | VItamin D treatment Effect on retinal nerve fiber loss after Optic neuritis - VIDEO-trial | EUCTR2010-018498-39-NL |
| Vitamin D Plus Fluticasone Propionate | The Addition of Vitamin D to Fluticasone Propionate in the Management of Seasonal Allergic Rhinitis | NCT01103934 |
| Effects of Vitamin D in Parkinson's Disease (PD) | The Effects of Vitamin D on Balance in Persons With PD | NCT01119131 |
| A Study to Assess Safety and Efficacy of Odanacatib (MK-0822) in Men With Osteoporosis (MK-0822-053) | A Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of Odanacatib (MK-0822) in the Treatment of Men With Osteoporosis Treated With Vitamin D and Calcium | NCT01120600 |
| Replenishment of Vitamin D in Hip fractured Patients (REVITAHIP) Trial | The effects of a high-dose oral vitamin D loading dose compared with placebo with maintenance oral vitamin D and calcium on correction of hypovitaminosis D, lower extremity function (gait velocity), falls and fractures among older people after hip fracture surgery | ACTRN12610000392066 |
| Antenatal Vitamin D3 Supplementation in Bangladesh: Randomized Controlled Trial | The Effect of Antenatal Vitamin D Supplementation on Maternal-fetal Vitamin D Status and Neonatal Immune Function: a Randomized Controlled Trial in Bangladesh | NCT01126528 |
| A Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of Odanacatib (MK-0822) in the treatment of Men with Osteoporosis Treated with Vitamin D and Calcium - Male osteoporosis study | A Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of Odanacatib (MK-0822) in the treatment of Men with Osteoporosis Treated with Vitamin D and Calcium - Male osteoporosis study | EUCTR2010-019454-41-LV |
| The Effect of Vitamin D Supplementation on Glucose Metabolism in Non-Diabetic African American Adults | The Effect of Vitamin D Supplementation on Glucose Metabolism in Non-Diabetic African American Adults | NCT01141192 |
| Vitamin D and Omega-3 Trial (VITAL) | Vitamin D and Omega-3 Trial (VITAL) | NCT01169259 |
| DIABGAD - Trial to Preserve Insulin Secretion in Type 1 Diabetes Using GAD-Alum (Diamyd) in Combination With Vitamin D and Ibuprofen | Pilot Trial to Preserve Residual Insulin Secretion in Children and Adolescents With Recent Onset Type 1 Diabetes by Using GAD-antigen (Diamyd) Therapy in Combination With Vitamin D and Ibuprofen | NCT01785108 |
| Optimizing vitamin D supplementation and sun exposure for breastfed infants in Berlin, Germany | An assessment of the minimal amount of vitamin D supplementation and sun exposure required to provide a sufficient vitamin D status in breastfed infants during their first 6 weeks of life | ACTRN12609000919213 |
| Vitamin D Treatment and Hypogonadism in Men | A Randomized, Double-blind, Placebo Controlled Trial to Evaluate the Effects of Vitamin D Supplementation on Androgen Levels in Hypogonadal Men | NCT01748370 |
| Vitd and Barrier Function in IBD | Vitamin D and Its Effects on Inflammation and Intestinal Permeability in Crohn's Disease in Remission | NCT01792388 |
| The Comprehensive Cohort Model In Effect of Vitamin D Supplementation On Insulin Resistance In Diabetic Type 2 Patients (A randomized controlled group beside the preference group). | The Comprehensive Cohort Model In Effect of Vitamin D Supplementation On Insulin Resistance In Diabetic Type 2 Patients(A randomized controlled group beside the preference group). | IRCT201202219097N1 |
| Effect of vitamin D on quality of life in fibromyalgia pateints | Effect of vitamin D on quality of life in fibromyalgia pateints | IRCT2012100610960N2 |
| Vitamin D supplements to prevent depression and poor physical function in persons over 60 years | Prevention of depression and poor physical function in older persons with vitamin D supplementation - D-Vitaal | EUCTR2012-005332-29-NL |
| Vitamin D in critically ill patients with sepsis in Central Australia | Measuring Vitamin D levels in patients admitted with sepsis and non sepsis in Central Australia to see if there is any difference in Vitamin D levels in these two groups | ACTRN12613000070730 |
| Effect of supplementation with vitamin D on the acute bronchitis prevention during the first year of life. | Effect of supplementation with vitamin D on the acute bronchitis prevention during the first year of life. | EUCTR2012-001152-19-ES |
| Antenatal Vitamin D3 Dose-finding and Safety Study | Antenatal Vitamin D Supplementation to Improve Neonatal Health Outcomes in Dhaka, Bangladesh: Preliminary Dose-finding and Safety Study | NCT00938600 |
| Vitamin D3 Supplementation and the T Cell Compartment in Multiple Sclerosis (MS) | The Effects of Vitamin D3 Supplementation on the T Cell Compartment in Multiple Sclerosis; a Pilot Study | NCT00940719 |
| Effect of vitamin D3 on progression of diabetic nephropathy | Vitamin D3 therapy on the progression of diabetic nephropathy | SLCTR/2009/008 |
| Phase III, randomized, double blind trial on Vitamin D supplementation for resected stage II melanoma patients. - MelaVid | Phase III, randomized, double blind trial on Vitamin D supplementation for resected stage II melanoma patients. - MelaVid | EUCTR2009-012049-46-IT |
| Vitamin D Supplementation in Veterans With Early-Stage Prostate Cancer | Vitamin D Supplementation in Veterans With Early-Stage Prostate Cancer | NCT00953225 |
| Prospective Study of Efficacy of Intra-muscular Vitamin D3 in Tropical Calcific Pancreatitis | Double-blind Randomized Study to Determine the Efficacy of Intramuscular Vitamin D3 Supplementation in Tropical Calcific Pancreatitis | NCT00956839 |
| Trial to Assess Response to Oral Vitamin D3 Supplementation in Obese Individuals | The Vitamin D Dose Response Curve in Obesity | NCT00960037 |
| Immunointervention With Calcitriol in New-Onset Type 1 Diabetes | Immunointervention With 1,25-dihydroxy-vitamin D3 in New-onset Type 1 Diabetes | NCT00960635 |
| Vitamin D Supplementation for Severe Pneumonia in Under-five Children | Vitamin D Supplementation for Severe Pneumonia in Under-five Children: A Double Blind, Randomized Placebo Controlled Trial | CTRI/2013/01/003317 |
| Role of Vitamin D in the Prevention and Treatment of Diseases Associated With Insulin Resistance | Role of Vitamin D in the Prevention and Treatment of Diseases Associated With Insulin Resistance | NCT01779908 |
| ETUDE MULTICENTRIQUE, RANDOMISEE EN DOUBLE AVEUGLE VERSUS PLACEBO EVALUANT L’EFFICACITE D’UN TRAITEMENT ADDITIONNEL PAR CHOLECALCIFEROL (VITAMINE D3) CHEZ DES PATIENTS ATTEINTS DE SCLEROSE EN PLAQUES RECURRENTE (SEP-R) TRAITES PAR INTERFERON BETA 1A 44 µG 3 FOIS PAR SEMAINE PAR VOIE SOUS-CUTANEE - choline | ETUDE MULTICENTRIQUE, RANDOMISEE EN DOUBLE AVEUGLE VERSUS PLACEBO EVALUANT L’EFFICACITE D’UN TRAITEMENT ADDITIONNEL PAR CHOLECALCIFEROL (VITAMINE D3) CHEZ DES PATIENTS ATTEINTS DE SCLEROSE EN PLAQUES RECURRENTE (SEP-R) TRAITES PAR INTERFERON BETA 1A 44 µG 3 FOIS PAR SEMAINE PAR VOIE SOUS-CUTANEE - choline | EUCTR2009-013695-46-FR |
| Effect of Vitamin D Supplementation on Hemoglobin A1c in Patients With Uncontrolled Type 2 Diabetes Mellitus | Effect of Vitamin D Supplementation on Hemoglobin A1c in Patients With Uncontrolled Type 2 Diabetes Mellitus | NCT00985361 |
| A Pilot Study of the Impact of Vitamin D3 on Muscle Performance in Elderly Women | A Pilot Study of the Impact of Vitamin D3 on Muscle Performance in Elderly Women | NCT00986596 |
| Vitamin D Supplementation Requirement in Obese Subjects | Vitamin D Supplementation Requirement in Obese Subjects | NCT00996866 |
| Double blinded randomized placebo controlled trial to examine if intake of vitamin D supplement can prevent INFLUENZA PANDEMIC (H1N1) 2009 targeting on high school students | Double blinded randomized placebo controlled trial to examine if intake of vitamin D supplement can prevent INFLUENZA PANDEMIC (H1N1) 2009 targeting on high school students - Amateras IX | JPRN-UMIN000002532 |
| The Effect of Vitamin D Repletion on Small Low Density Lipoprotein (LDL) Particle Number in Subjects at Elevated Cardiovascular Risk | The Effect of Vitamin D Repletion on Small LDL Particle Number in Subjects at Elevated Cardiovascular Risk | NCT01008384 |
| Vitamin D Supplementation to Obese Chinese Males | Health Effect of Oral Vitamin D Supplementation on Obese Chinese Males | NCT01781169 |
| Relative Efficacy of Vitamins D2 and D3 in Adult Humans | Vitamin D Status: Relative Efficacy of Vitamins D2 and D3 | NCT01139840 |
| Does vitamin D supplementation prevent progression of knee osteoarthritis? A randomised controlled trial | Effects of vitamin D supplementation on knee pain, knee structural change, and lower limb muscle strength in patients with symptomatic knee osteoarthritis: A randomised, double-blind, placebo-controlled trial | ACTRN12610000495022 |
| Vitamin D Supplementation and Metabolism in Vitamin D Deficient Elderly | Effects of Vitamin D Supplementation With and With Out Exercise on Metabolic and Physical Consequences of Vitamin D Deficiency in the Elderly | NCT01145703 |
| A Trial of Vitamin D and Health Advice for the Prevention of Upper Respiratory Tract Infections | McFlu2 COLD3 Prevention: A Randomized, Placebo-controlled, Double Blind Trial of Vitamin D and Health Advice for the Prevention of Upper Respiratory Tract Infections in McMaster University Students | NCT01158560 |
| Curcumin and Cholecalciferol in Treating Patients With Previously Untreated Stage 0-II Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma | A Phase II Study of Curcumin and Vitamin D in Previously Untreated Patients With Early Stage Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Lymphoma (SLL) | NCT02100423 |
| Vitamin D Retrospective Study and Role With Disease | Association of Vitamin D With Diabetes, Osteoporosis and Cardiovascular Risk | NCT01798030 |
| Study of Vitamin D in Children With Sickle Cell Disease | Pilot Study of Vitamin D Therapy to Prevent Respiratory Complications in Children With Sickle Cell Disease | NCT01276587 |
| A study to determine the association of vitamin D deficiency with acute ischaemic stroke | Role of Vitamin D levels in acute ischaemic stroke and efficacy of vitamin D supplementation on stroke outcome | CTRI/2013/02/003440 |
| The Effect of Supplementation With Two Different Doses of Vitamin D on Bone Mineral Density, Vitamin D Levels and Hand Grip Strength in Children With Diabetes Mellitus Type 1 | The Effect of Supplementation With Two Different Doses of Vitamin D (500 IU vs 1000IU)on Bone Mineral Density, Serum 25 Hydroxyvitamin D and Hand Grip Strength in Children With Diabetes Mellitus Type 1 - a Randomized Controlled Trial. | NCT01277913 |
| The Effect of Vitamin D Replacement on Airway Reactivity, Allergy and Inflammatory Mediators in Exhaled Breath Condensate in Vitamin D Deficient Asthmatic Children | | NCT01287455 |
| Vitamin D Supplementation Enhances Immune Response to Bacille-Calmette-Guerin (BCG) Vaccination in Infants | Vitamin D Supplementation Enhances Immune Response to BCG Vaccination in Infants | NCT01288950 |
| The effect of 1.25 dihydroxy vitamin D on IMT, iron indicators changes induced by inflammation and inflammatory biomarkers in patients with chronic kidney disease | The effect of 1.25 dihydroxy vitamin D on IMT, iron indicators changes induced by inflammation and inflammatory biomarkers in patients with chronic kidney disease | IRCT201211106415N3 |
| The role of vitamin D supplementation on symptoms in patients treated for depression. A double-blind randomized trial. | The role of vitamin D supplementation on symptoms in patients treated for depression. A double-blind randomized trial. | EUCTR2010-023531-42-DK |
| Vitamin D supplementation and male infertility: a randomized double blinded clinical trial | Vitamin D supplementation and male infertility: a randomized double blinded clinical trial | EUCTR2010-024588-42-DK |
| Styrian Vitamin D Hypertension Trial: A randomized, double-blind, placebo controlled trial to study the effects of vitamin D supplementation on systolic blood pressure in vitamin D deficient hypertensive patients | Styrian Vitamin D Hypertension Trial: A randomized, double-blind, placebo controlled trial to study the effects of vitamin D supplementation on systolic blood pressure in vitamin D deficient hypertensive patients | EUCTR2009-018125-70-AT |
| The Effect of Vitamin D Supplementation on Calcium Excretion in Thalassemia: a Dose Response Study | The Effect of Vitamin D Supplementation on Calcium Excretion in Thalassemia: a Dose Response Study | NCT01323608 |
| Sun Exposure and Vitamin D Supplementation for mild vitamin D insufficiency in Australian Adults | Comparison of sun exposure advice and vitamin D supplementation for the management of mild vitamin D deficiency in Australian adults | ACTRN12613000290796 |
| Onderzoek naar de effecten van vitamine D op de longfunctie, luchtweginfecties en lichamelijke conditie bij COPD-patiënten. | Effects of vitamin D supplementation on pulmonary function, airway infections and physical performance in patients with COPD: A randomized controlled trial. | NL-OMON25037 |
| Primary Hyperparathyroidism (PHPT): Early Effect of Vitamin D | Early Effect of Vitamin D in Primary Hyperparathyroidism | NCT01329666 |
| Effect of Vitamin D Supplementation on Cardiovascular and Respiratory Disease Event Rates, and the incidence of fractures | Effect of Vitamin D Supplementation on Cardiovascular and Respiratory Disease Event Rates in Older Adults, and the incidence of non-vertebral fractures. | ACTRN12611000402943 |
| Efficacy of Vitamin D3 for the Treatment of Psoriatic Patients With Vitamin D Deficiency and Insufficiency | The Efficacy of Vitamin D3 for the Treatment of Chronic Plaque Type Psoriatic Patients With Vitamin D Deficiency and Insufficiency: a Randomized Controlled Trial | NCT01339741 |
| Trial to Assess Vitamin D Requirements in Lactating Women | Randomised Placebo-controlled Supplementation Study With Vitamin D and Calcium in Breastfeeding Mothers | NCT01349127 |
| Effects of Treating Vitamin D Deficiency in Poorly Controlled Type 2 Diabetes | Effects of Treating Vitamin D Deficiency in Poorly Controlled Type 2 Diabetes | NCT01855321 |
| Effects of vitamin D on beta cell function and insulin sensitivity in pre-diabetes and diabetes mellitus type 2 - EVIDENS | Effects of vitamin D on beta cell function and insulin sensitivity in pre-diabetes and diabetes mellitus type 2 - EVIDENS - EVIDENS | EUCTR2010-024487-18-SE |
| Effect of Vitamin D Replacement in Patients With Urolithiasis | Effect of Vitamin D Replacement in Vitamin D Deficient Patients With History of Urolithiasis: A Randomized Controlled Trial | NCT01349764 |
| Efficacy of Cholecalciferol (Vitamin D3) for Delaying the Diagnosis of MS After a Clinically Isolated Syndrome | Multicentric, Randomized, Double-blind Versus Placebo Study Evaluating the Efficacy of Treatment With Cholecalciferol (Vitamin D3) for Delaying the Diagnosis of Multiple Sclerosis (MS) After a Clinically Isolated Syndrome (CIS). Comparison of Conversion Rates After 2 Years. | NCT01817166 |
| A Study to Evaluate Alendronate Sodium /Vitamin D3 Combination Tablets(FOSAMAX PLUS) Versus Calcitriol in the Treatment of Osteoporosis in Postmenopausal Women in China (MK-0217A-264) | A 6-Month, Randomized, Open-Label, Active-Comparator Controlled, Parallel-Group Study With a 6-Month Extension to Evaluate the Safety and Efficacy of Alendronate Sodium 70 mg/Vitamin D3 5600 I.U. Combination Tablets Versus Calcitriol in the Treatment of Osteoporosis in Postmenopausal Women in China | NCT01350934 |
| A Pilot Study on the Effect of Vitamin D Treatment in Patients With Statin-Associated Myalgia | A Pilot Study on the Effect of Vitamin D Treatment in Patients With Statin-Associated Myalgia | NCT01274104 |
| Does Deficiency in Vitamin D Induced Hypercoagulation or Thrombin Generation | | NCT01761669 |
| Examination of efficacy and safety of administration of vitamin D3 with the PEG-IFN alpha 2a/Ribavirin therapy to hepatitis C patients with osteoporosis. | Examination of efficacy and safety of administration of vitamin D3 with the PEG-IFN alpha 2a/Ribavirin therapy to hepatitis C patients with osteoporosis. - Vitamin D3 with the PEG-IFN alpha 2a/RBV therapy to hepatitis C patients with osteoporosis. | JPRN-UMIN000004628 |
| Vitamin D3 (Vit D3) Supplementation and T Cell Immunomodulation in Patients With Newly Diagnosed Operative Invasive Ductal Breast Carcinoma | Vitamin D3 (Vit D3) Supplementation and T Cell Immunomodulation in Patients With Newly Diagnosed Operative Invasive Ductal Breast Carcinoma Stage I-II | NCT01816555 |
| Modulation of Breast Cancer Risk Biomarkers by High Dose Vitamin D | Modulation of Breast Cancer Risk Biomarkers by High Dose Vitamin D | NCT01166763 |
| Vitamin D for Treatment of Glioblastoma Multiforme | High-Dose Vitamin D in Combination With Chemoradiotherapy in the Treatment of Glioblastoma Multiforme | NCT01181193 |
| Study of Vitamin D in the Severely Mentally Ill | A Pilot Study of Vitamin D Supplementation in Bronx Psychiatric Patients | NCT01169142 |
| The effects of a probiotic and vitamin D intervention in healthy adults on biochemical markers and metabolomic profiles | The effects of a probiotic and vitamin D intervention in healthy adults on biochemical markers and metabolomic profiles: a double-blind, randomised placebo-controlled trial carried out in two centres | ISRCTN00310528 |
| A Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of Odanacatib (MK-0822) to reduce the Risk of Fracture in Osteoporotic Men Treated with Vitamin D and Calcium | A Phase III Randomized, Placebo-Controlled Clinical Trial to Assess the Safety and Efficacy of Odanacatib (MK-0822) to reduce the Risk of Fracture in Osteoporotic Men Treated with Vitamin D and Calcium - MK0822-053 | NL-OMON38208 |
| Does Vitamin D Improve Glycemic Control in Type II DM? | Does Vitamin D Improve Glycemic Control in Type II DM? A Double Blind Randomized Controlled Trial | NCT01170442 |
| Does Vitamin D Reduce Risk of Developing Type II DM in High Risk Individuals | Does Vitamin D Reduce Risk of Developing Type II DM in Prediabetics? A Double Blind Randomized Controlled Trial | NCT01170468 |
| Magnitude of Changes in 25 OH Vitamin D3 Levels After Vitamin D3 Supplementation | Magnitude of Changes in 25 OH Vitamin D3 Levels After Vitamin D3 Supplementation: A Randomized Controlled Study | NCT01170507 |
| Effects of different doses of oral Cholecalciferol on serum 25-OHD,PTH, Calcium,and bone markers during Fall and Winter in school children of Taleghan | Evaluation of the effects of monthly and bimonthly consumption of 50 000 units of oral vitamin D3 on serum levels of 25-OHD, iPTH, calcium and other bone markers and comparison of the results with placebo group in 210 healthy school children of Taleghan | IRCT138711231681N1 |
| vitamin D status in school children | Effects of different doses of oral Cholecalciferol on serum1-25(OH)D during Fall and Winter in school children of Taleghan | IRCT201009131681N2 |
| A randomized, double blind, comparative study of vitamin D3 versus placebo in school children with asthma to prevent asthma attack | A randomized, double blind, comparative study of vitamin D3 versus placebo in school children with asthma to prevent asthma attack - ATP XIII | JPRN-UMIN000004161 |
| A randomized, double blind, comparative study of vitamin D3 versus placebo in small children with asthma to prevent asthma attack | A randomized, double blind, comparative study of vitamin D3 versus placebo in small children with asthma to prevent asthma attack - ATP XII | JPRN-UMIN000004160 |
| A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with diabetes to prevent progression of chronic kidney disease | A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with diabetes to prevent progression of chronic kidney disease - ATP X | JPRN-UMIN000004163 |
| A randomized, double blind, comparative study of vitamin D3 versus placebo in infant with atopy to prevent developing to asthma | A randomized, double blind, comparative study of vitamin D3 versus placebo in infant with atopy to prevent developing to asthma - ATP XI | JPRN-UMIN000004159 |
| Evaluation of the effect of vitamin D consumption on the AntiTPO | The effect of vitamin D intake on AntiTPO levels in hypothyroid and euthyroid patients with anti-TPO positive: an interventional study | IRCT20210802052054N1 |
| Effect of low caloric diet with and without vitamin D supplementation in non alcoholic fatty liver | Effect of low caloric diet with and without vitamin D supplementation on trends of disease in non alcoholic fatty liver | IRCT2012091310826N1 |
| Impact of Vitamin D on Diabetic Kidney Disease in African Americans | Impact of Vitamin D on Diabetic Kidney Disease in African Americans | NCT01214356 |
| Open-label Vitamin D Trial for Patients With Cystic Fibrosis and Allergic Bronchopulmonary Aspergillosis | Open-label Vitamin D Trial for Patients With Cystic Fibrosis and Allergic Bronchopulmonary Aspergillosis | NCT01222273 |
| Vitamin D Supplementation for Treatment of Heart Failure | D suppLementation In HearT FaiLure (DELIGHTFUL) | NCT01230307 |
| Vitamin D supplementation prior to surgery for colorectal cancer: a randomised pilot study. | Vitamin D supplementation prior to surgery for colorectal cancer. | ACTRN12610000936022 |
| Effect of Vitamin D on Metabolic Parameters in Patients With the Metabolic Syndrome | Effect of Vitamin D on Metabolic Parameters in Patients With the Metabolic Syndrome | NCT01237769 |
| Vitamin D Supplementation in Breastfeeding Women | Maternal Oral Vitamin D Supplementation Via Daily or Monthly Regimens and the Effect on Levels of Vitamin D in Human Milk and Infant Serum | NCT01240265 |
| Vitamin D supplements to prevent depression and poor physical function in persons over 60 years. | Prevention of depression and poor physical function in older persons with vitamin D supplementation. | NL-OMON24229 |
| Study of the Effect of Vitamin D as an Add-on Therapy to Corticosteroids in Asthma | Vitamin D Add-on Therapy Enhances Corticosteroid Responsiveness in Asthma | NCT01248065 |
| Effect of vitamin D supplementation on primary hypertension: a randomized clinical trial | Effect of vitamin D supplementation on primary hypertension: a randomized clinical trial | IRCT201211239014N12 |
| The effect of Vitamin D supplementation over mild to moderate asthma outcome in 6-14 years old children | The effect of Vitamin D supplementation over mild to moderate asthma outcome in 6-14 years old children | IRCT201110127784N1 |
| Vitamin D Supplementation in Patients With Diabetes Mellitus Type 2 | Vitamin D Supplementation in Patients With Diabetes Mellitus Type 2 and Low 25(OH)D Concentrations: Does it Help to Improve Endothelial Function-The DIMENSION TRIAL | NCT01741181 |
| Immunological response of vitamin D | Immunological response of a single dose of 100,000 I.U. of cholecalciferol (vitamin D3) | EUCTR2012-003217-33-DE |
| The Effect of Vitamin D supplementation on dryness of eyes | The Effect of Vitamin D supplementation on dry eye syndrome (DES) | CTRI/2023/06/053724 |
| Supplementation and Depressive Symptomatology Incidence Among Saudi Arabian Adults | Association Between Three-Months Vitamin D Supplementation and Depressive Symptomatology Incidence Among Saudi Arabian Adults | NCT05916053 |
| Comparative evaluation of vitamin d levels in gcf and saliva in chronic periodontitis patients with and without diabetes mellitus before and after scaling and root planning | Comparative Evaluation of 25-Hydroxyvitamin D Levels in Gingival crevicular Fluid and Serum in Chronic periodontitis with and without Type2 Diabetes mellitus patients Before and After Non-surgical therapy. - Nil | CTRI/2023/06/054205 |
| Pre- and Post- Vitamin D supplementation comparative evaluation of clinical parameters of oral submucous fibrosis. | Pre- and post-treatment estimation of serum vitamin D levels and comparative evaluation of clinical parameters of oral submucous fibrosis: A Randomized Controlled Trial. | CTRI/2023/06/054288 |
| Study of Vitamin D levels and jaw bone mineral density in females patients of implant therapy. | Evaluation and Co-relation of vitamin D levels and jaw bone mineral density in premenopausal and postmenopausal female patients undergoing implant therapy. An In-vivo Study | CTRI/2023/06/054378 |
| Effects of Vitamin D Supplementation in Adolescents With Asthma, Obesity and Vitamin D Deficiency. | Effects of Vitamin D3 Supplementation in Asthma Control, Pulmonary Function and Th17 Inflammatory Biomarkers in Adolescents With Asthma, Obesity and Vitamin D Deficiency: a Randomized Clinical Trial | NCT05431920 |
| Supporting vitamin D fortified student milk standard development | Supporting vitamin D fortified student milk standard development | ChiCTR2300072834 |
| Prospective, clinical nonrandomized study for determining the significance of perioperative vitamin D levels in primary arthroplasty of the hip, knee, and shoulder. | Prospective, clinical nonrandomized study for determining the significance of perioperative vitamin D levels in primary arthroplasty of the hip, knee, and shoulder. | DRKS00032101 |
| The combined effect of vitamin D and zinc on premenstrual syndrome | The combined effect of vitamin D and Zinc on symptoms of depression, anxiety, premenstrual syndrome (PMS) and Total antioxidant capacity (TAC) in people with premenstrual syndrome (PMS): a randomized, Three-blind clinical trial | IRCT20090901002394N47 |
| The Effect Of Vitamin D On Outcome Of Pregnancy | The Effect Of Vitamin D Supplementation During Pregnancy On Newborn s Antropometric Index | IRCT201205119491N2 |
| comparative evaluation vitamin D and micro osteoperforation on Tooth movement | Comparative Evaluation on the Effect of Local Administration of Vitamin D and Micro Osteoperforation (MOP) on The Rate of Orthodontic Tooth Movement: Randomized control trial | CTRI/2023/07/054714 |
| 25OH Vitamin D Overdoses and Risk of Bronchopulmonary Dysplasia or Death | Is 25OHD Overdoses Before 36 Weeks Corrected Age an Independant Risk Factor of Bronchopulmonary Dysplasia or Death ? | NCT05944055 |
| Therapeutic effect of the intake high dose Vitamin D on the outcome of malignant melanoma of the skin | Vitamin D supplementation in cutaneous malignant melanoma outcome - Vitamin D and cutaneous malignant melanoma outcome | EUCTR2012-002125-30-BE |
| Effect of Supplementation With ?-3 Fatty Acids, Vitamin D and Calcium in Patients With Acute Lymphoblastic Leukemia. | Effect of Combined Supplementation With Long-chain ?-3 Polyunsaturated Fatty Acids, Vitamin D, and Calcium as a Potential Adjuvant in the Preservation of Bone Mass and Bone Turnover Biomarkers in Patients With Acute Lymphoblastic Leukemia. | NCT05950204 |
| To asses use of vitamin D supplement and sun exposure in increasing vitamin D level among children. | A Randomized Controlled Trial(RCT) to Assess the impact of Twin-Track approach (TT approach) on Serum Vitamin-D Levels Among the under- fives living in Coastal belt of southern India - nil | CTRI/2023/07/054883 |
| Effects of oral magnesium and vitamin d co-supplementation on glycemic control in type 2 diabetes mellitus: a double-blinded, randomized, control trial | Effects of oral magnesium and vitamin d co-supplementation on glycemic control in type 2 diabetes mellitus: a double-blinded, randomized, control trial | TCTR20230707008 |
| Vitamin D plays major role in brain development in children. Vitamin D deficiency is common among school children. The aim of this study is to look at vitamin D levels and the effect of vitamin D supplementation in children (5-12 years old) with Attention Deficit Hyperactivity Disorder symptoms. | Effect of vitamin D on ADHD: a clinical study | CTRI/2022/06/043062 |
| Vitamin D, chronic complications of type 2 diabetes mellitus and gut microbiota | Vitamin D, chronic complications of type 2 diabetes mellitus and gut microbiota | ISRCTN36129007 |
| Vitamin A combined vitamin D supplementation could improve the immune response to Bacille Calmette-Guérin vaccine revaccinated in Chinese infants | Vitamin A combined vitamin D supplementation could improve the immune response to Bacille Calmette-Guérin vaccine revaccinated in Chinese infants | ChiCTR-TRC-12002489 |
| Effect of Vitamin D supplementation in participants with periodontitis and vitamin D deficiency. | Effect of vitamin D3 supplementation in participants with periodontitis and vitamin D deficiency: A randomized, interventional, parallel, placebo-controlled, double blind clinical trial. - D-CURE-IV-22-1 | CTIS2023-503671-16-00 |
| The effect of vitamin D on the outcome of IVF therapy in women with poor response to IVF treatment. | Evaluating the effect of vitamin D treatment among patients with vitamin D deficiency on the outcome of IVF in poor responder IVF candidates; A clinical trial. | IRCT20210820052235N1 |
| Vitamin D and Omega-3 Trial to Prevent and Treat Diabetic Kidney Disease | Vitamin D and Omega-3 Trial to Prevent and Treat Diabetic Kidney Disease | NCT01684722 |
| Effect of Vitamin D in Diets of Preterm Infants | An Evaluation of the Effects of Two Levels of Vitamin D in Infants Fed Preterm or Transitional Formula on Serum 25-Hydroxyvitamin D and Bone Status in Preterm Infants: A Double-Blind, Randomized Controlled Trial | NCT01698840 |
| Medication Adherence Monitoring Trial Using Smart Clinical Trial Application and Smart Watch | An Open, Randomized and Parallel-design Exploratory Clinical Trial to Evaluate the Effect of Smart Medication Adherence Monitoring on the Medication Adherence and Blood Vitamin D Concentration | NCT05452512 |
| Effect of vitamin D in the treatment of endometriosis | The effect of vitamin D supplementation on the reduction of painful symptoms in women with endometriosis: a randomized controlled trial | IRCT20120718010324N78 |
| Comparison of the effects of vitamin D versus placebo on the components of metabolic syndrome in children and adolescents aged 10-16 years | Comparison of the effects of vitamin D versus placebo on the components of metabolic syndrome in children and adolescents aged 10-16 | IRCT201110271434N5 |
| Treatment of Nutritional rickets with different daily doses of oral vitamin D therapy | To evaluate the efficacy of different daily doses of vitamin D therapy in treatment ofnutritional rickets in Indian children: A randomized controlled trial | CTRI/2023/05/053097 |
| Comparison of Efficacy of Denosumab With Eldecalcitol or Native Vitamin D in Postmenopausal Women With Osteoporosis. | Comparison of Efficacy of Denosumab With Eldecalcitol or Native Vitamin D in Postmenopausal Women With Osteoporosis. | NCT05884372 |
| Impact of Vitamin D Supplementation on COVID-19 Vaccine Response and IgG Antibodies in Deficient Women. | Impact of Vitamin D Supplementation on COVID-19 Vaccine Response and IgG Antibodies in Deficient Women. | NCT05447065 |
| Vitamin D Supplementation Prevents Elderly Pneumonia | Vitamin D Supplementation Prevents Pneumonia in Institutionalized Elderly Subjects | NCT00877422 |
| A randomized, double blind, comparative study of STATUS D3 (vitamin D3) versus placebo in patients with lung cancer to prevent relapse after operation | A randomized, double blind, comparative study of STATUS D3 (vitamin D3) versus placebo in patients with lung cancer to prevent relapse after operation - Amaterasu 4 | JPRN-UMIN000001869 |
| Vitamin D and Physical Activity for Prevention of Sarcopenia in Osteoporosis | Effect of Vitamin D Supplementation and Physical Activity in Preventing Sarcopenia in Older Adults With Osteoporosis | NCT01666522 |
| Vitamin D effect on reduction of proteinuria in patients with diabetic nephropathy and vitamin d deficiency | Evaluation of vitamin D effect on reduction of proteinuria in patients with diabetic nephropathy and vitamin d deficiency | IRCT201204049374N1 |
| Vitamin D for Critically Traumatic Patients | Effects of High Doses of Liquid Vitamin D Supplementation on Clinical Outcomes in Critically Traumatic Patients. | NCT05449522 |
| Replacement of Vitamin D in Women with Breast Cancer Who Will Undergo Chemotherapy Before Surgery | Vitamin D Supplementation in Women with Breast Cancer Undergoing Neoadjuvant Chemotherapy: Randomized, Double-Blind, Placebo-Controlled Clinical Trial | RBR-10k4gqdg |
| High Molecular Weight Hyaluronic Acid, a-lipoic Acid, Magnesium, Vitamin B6 and Vitamin D, in the Prevention of Spontaneous Abortion | Efficacy of the Association of Hyaluronic Acid With High Molecular Weight, a-lipoic Acid (ALA), Magnesium, Vitamin B6 and Vitamin D, in the Prevention of Spontaneous Abortion in Patients at Risk | NCT05449171 |
| A prospective study to identify the effect of two attachable light-emitting devices of different wavelengths on serum vitamin D level in healthy adults | The effect of two attachable light-emitting devices of different wavelengths on serum vitamin D level in healthy adults | KCT0007481 |
| Effect of Aerobic Training with Vitamin D Supplementation on Gene Expression of Visceral Adipose Tissue of Obese Rats with Type 2 Diabetes | Effect of Eight Weeks Aerobic Training with Vitamin D Supplementation on AMPK, PGC-1a, PTP1B, and UCP-1 Gene Expression in The Visceral Adipose Tissue of Obese Rats with Type 2 Diabetes | IRCT20220510054809N1 |
| Evaluation of Vitamin D in Sudden Hearing Loss | Evaluation of the effect of adding vitamin D to routine treatment of patients with Sudden Sensory-Neural Hearing Loss (SSNHL) with vitamin D deficiency and comparison with placebo group with routine treatment vitamin D deficiency | IRCT20211125053181N1 |
| Effect of vitamin D supplementation on glucose homeostasis among Type 2 Diabetic patients: A Randomized Clinical Trial | Effect of vitamin D supplementation on glucose homeostasis among Type 2 Diabetic patients: A Randomized Clinical Trial - BETA CELL FUNCTION OR INSULIN SECRETION (HOMA B) The amount of glucose cleared from the blood in response to a dose of insulin. A score of less than 100 defined reduced B cell function. INSULIN RESISTANCE (HOMA IR) Defined as a condition when normal amount of insulin in body fails to produce the desired response . A score of greater than or equal to 2.0 defined IR. INSULIN SENSITIVITY Insulin sensitivity calculate by using the following formula is IS equal to 1 per IR (Normal is less than 3.0) VITAMIN D STATUS Vitamin D status was defined as SUFFICIENT with level of vitamin D greater than 30ng per ml and DEFICIENT with level of serum 25 (OH) vit D less than or equal to 30ng per ml. | JPRN-UMIN000048031 |
| The Effects of Vitamin D Plus Omega-3 Polyunsaturated Fatty Acids in Patients With Episodic Migraine | The Effects of Vitamin D Plus Omega-3 Polyunsaturated Fatty Acids in Patients With Episodic Migraine | NCT05449145 |
| Impact of Vitamin D3 Supplementation in Non-Sjogren Dry Eye Patients With Low Serum Vitamin D Level | Impact of Vitamin D3 Supplementation in Non-Sjogren Dry Eye Patients With Low Serum Vitamin D Level | NCT05425914 |
| The Effect of Aerobic Training with Vitamin D Supplementation on Cardiomyocytes Gene Expression of Type 2 Diabetic Rats. | The Effect of Eight Weeks Aerobic Training with Vitamin D Supplementation on Cardiac Biomarkers, VEGF-B Protein Levels, IGF-1 and Mir-1 Gene Expression in Cardiomyocytes of Type 2 Diabetic Rats. | IRCT20220512054832N1 |
| Comparing effects of different doses of Vitamin D in pregnant women with deficiency on maternal and child health | Supplementation of different doses of Vitamin D in deficient pregnant women and its effect on maternal and fetal outcomes | CTRI/2023/04/051662 |
| The effect of intermittent intramuscular injection of vitamin D2 on the level of vitamin D in human body (VD2-2021) | The effect of Intermittent intramuscular injection of vitamin D2 on the level of vitamin D in human body (VD2-2021) | ChiCTR2300070641 |
| The Role of Vitamin D in Corneal Epithelial Barrier Function, Ocular Microbiome, Ocular Inflammation, and Visual Acuity of Children With Allergic Conjunctivitis | The Role of Vitamin D in Corneal Epithelial Barrier Function, Ocular Microbiome, Ocular Inflammation, and Visual Acuity of Children With Allergic Conjunctivitis | NCT05839938 |
| Clinical Trial of Vit D and Calcium for Recurrent BPPV | STOP Vertigo: Supplementation of Vitamin D for Termination of Recurrences From Benign Paroxysmal Positional Vertigo | NCT05863949 |
| Effects of Vitamin D Status and Multiple Mega-dose Supplementation on Health Care Disparities in Perioperative Patients With Hepatocellular Carcinoma Receiving Hepatectomy | Effects of Vitamin D Status and Multiple Mega-dose Supplementation on Health Care Disparities in Perioperative Patients With Hepatocellular Carcinoma Receiving Hepatectomy | NCT05887505 |
| The effect of probiotic and vitamin D co-supplementation on migraine | Evaluating the effect of probiotic and vitamin D co-supplementation on clinical indices, inflammation, oxidative stress, mental health, and quality of life in patients with migraine | IRCT20121216011763N59 |
| effect of vitamin D in incidence of atrial fibrillation | Effect of Preoperative Vitamin D Supplementation on Atrial Fibrillation Incidence After Coronary Artery Bypass Graft | IRCT20230506058103N1 |
| The Role of Vitamin D in Chronic Urticaria and Angioedema Treatment | The Role of Vitamin D in Chronic Urticaria and Angioedema Treatment | NCT01371877 |
| Dose-Finding Study of the Relationship between Oral Vitamin D3 and Serum 25-Hydroxy Vitamin D3 Concentration. Protocol: ODS25 | Dose-Finding Study of the Relationship between Oral Vitamin D3 and Serum 25-Hydroxy (OH) Vitamin D3 Concentration to achieve a target serum 25-OH vitamin D3 concentration in patients attending rheumatology outpatient clinics. Protocol: ODS25 | ACTRN12609000203257 |
| The Impact of Severe Vitamin D Deficiency and Its Correction on Bone Mineral Density (BMD) in Postmenopausal Women | | NCT01694355 |
| Pilot Study Evaluating Doxercalciferol Replacement Therapy in Kidney Transplant Recipients | Pilot Study: Effects of Hectorol (Doxercalciferol) Vitamin D Replacement on Proteinuria, PTH Level and Bone Turnover in Stable Kidney Transplant Recipients: a Single-Blind, Placebo-Controlled Study in Patients Receiving 25-OH Vitamin D3 | NCT00889629 |
| Impact of Vitamin D Supplementation on Lactation Associated Bone Loss | Impact of Vitamin D Supplementation on Lactation Associated Bone Loss | NCT00903344 |
| The effect of daily versus depot vitamin D3 supplementation on vitamin D deficiency in Aboriginal children and adolescents in metropolitan and rural Western Australia | The efficacy of daily versus depot vitamin D3 supplementation on vitamin D deficiency in Aboriginal children and adolescents in metropolitan and rural Western Australia | ACTRN12609000269235 |
| Effect of Vitamin D2 and Vitamin D3 on serum 25-hydroxyvitamin D and parathyroid concentrations in healthy adult participants | Effect of vitamin D2 and vitamin D3 supplementation on serum 25-hydroxyvitamin D and parathyroid concentrations in healthy adult participants | ACTRN12609000273280 |
| Double blinded randomized placebo controlled trial to examine if maternal intake of vitamin D supplement can prevent atopic diseases through breast feeding | Double blinded randomized placebo controlled trial to examine if maternal intake of vitamin D supplement can prevent atopic diseases through breast feeding - Amaterasu 6 | JPRN-UMIN000001975 |
| The Effects of Vitamin D and Bone Loss in Parkinson's Disease | Effect of Vitamin D3 Supplementation in Parkinson's Disease Patients - A Pilot Study | NCT00907972 |
| Vitamin D Supplement Study for Adolescents | V.I.P. Feasibility Study (Vitamin D Intake Project) | NCT00909454 |
| Vitamin D following primary treatment of melanoma at high risk of recurrence | Assessing the feasibility, safety and toxicity of vitamin D following primary treatment of melanoma at high risk of recurrence: A pilot placebo controlled randomised phase II trial | ACTRN12609000351213 |
| A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with cancer in gastrointestinal tract to prevent relapse after operation | A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with cancer in gastrointestinal tract to prevent relapse after operation - Amaterasu 5 | JPRN-UMIN000001977 |
| Vitamin D and Arteriovenous Fistulae | Impact of Vitamin D on Arteriovenous Fistulae Maturation Among ESRD Patients | NCT00912782 |
| Effect of vitamin D supplementation on upper respiratory infections in adults | In healthy adults, is vitamin D supplementation better than placebo for preventing and/or reducing the severity of upper respiratory tract infections? | ACTRN12609000486224 |
| Vitamin D Needs of Early Adolescent Children | Supplemental Vitamin D and Functional Outcomes in Early Adolescence | NCT00931580 |
| Treatment of Vitamin D Insufficiency | Treatment of Vitamin D Insufficiency | NCT00933244 |
| A clinical trial to evaluate combination of 4 cardiovascular drugs and aspirin and Vitamin D supplementation in subjects for cardiovascular diseases | A randomized double-blind placebo-controlled trial for evaluation of a polycap, low dose aspirin and vitamin D supplementation in primary prevention-The International Polycap study 3 (TIPS 3) - TIPS 3 - The International Polycap Study 3 | CTRI/2012/11/003108 |
| Efficacy of oral Vitamin D therapy in children with Vitamin D deficiency | Comparison of therapeutic response to identical oral Vitamin D between obese and non-obese children with vitamin D deficiency | IRCT2012100210988N1 |
| The effect of vitamin D supplementation in Non Alcoholic Fatty Liver Disease treatment | The effect of vitamin D supplementation on serum hepatic enzymes, oxidative stress indicators & inflammatory markers in patients with Non-Alcoholic Fatty Liver Disease: A Randomized Controlled trial | IRCT2012071810333N1 |
| Asthma in the Elderly: The Role of Vitamin D | Asthma in the Elderly: The Role of Vitamin D | NCT01730976 |
| Effect of Calcium Plus Vitamin D Supplementation on Adolescent Mother and Infant Bone Health | Calcium Plus Vitamin D Supplementation During Pregnancy of Adolescent Mothers: Effects on Maternal and Infant Bone Mass, Calcium and Bone Metabolism and Breast Milk Composition | NCT01732328 |
| Iron-fortified Flavoured Skimmed Milk With or Without Vitamin D in Iron Deficient Women | | NCT01739907 |
| Vitamin D Status and Effect of Supplementation on Strength, Speed and Body Composition in rugby union players. | A double-blind, randomised, placebo controlled study of 12 weeks of oral vitamin D supplementation on strength, speed and body composition in elite rugby union players residing in Southern New Zealand. | ACTRN12612001233819 |
| Comparing Different Amounts of Vitamin D Supplementation to Preschool Children Living in Northern and Southern Sweden | | NCT01741324 |
| Vitamin D and atopic allergy | Vitamin D and atopic allergy | EUCTR2006-000359-16-SE |
| VITAL-DEP: Depression Endpoint Prevention in the VITamin D and OmegA-3 TriaL | VITAL-DEP: Depression Endpoint Prevention in the VITamin D and OmegA-3 TriaL | NCT01696435 |
| Vitamin D Supplementation Prior to Non-surgical Periodontal Therapy | Randomized Clinical Trial on the Effect of Vitamin D Supplement Prior to Non-surgical Periodontal Therapy: a Feasibility Trial | NCT05398770 |
| Dose-related Effects of Vitamin D3 on Immune Responses in Patients With Clinically Isolated Syndrome | Dose-related Effects of Vitamin D3 on Immune Responses in Patients With Clinically Isolated Syndrome and Healthy Control Participants. An Exploratory Double Blind Placebo Randomised Controlled Study. | NCT01728922 |
| Adjunctive vitamin A and vitamin D3 (Cholecalciferol) for enhancing efficacy of allergen-specific immunotherapy in allergic rhinitis, A randomized, double-blind, placebo-controlled trial | Adjunctive vitamin A and vitamin D3 (Cholecalciferol) for enhancing efficacy of allergen-specific immunotherapy in allergic rhinitis, A randomized, double-blind, placebo-controlled trial | TCTR20210129003 |
| Immune Reconstitution in HIV Disease (IREHIV) | Immune Reconstitution in HIV Disease Using Antimicrobial Treatment With Vitamin D and Phenylbutyrate | NCT01702974 |
| Effect of Curcumin, Vitamin D and herbal oil on Multiple Sclerosis | Evaluation of Clinical and Metabolic Responses to Combined Effect of Curcumin, Cholecalciferol, and Evening Primrose oil in Patients with Multiple Sclerosis | IRCT20170430033730N6 |
| Immune Reconstitution in Tuberculosis Disease | Immune Reconstitution in Tuberculosis Disease Using Antimicrobial Treatment With Vitamin D and Phenylbutyrate | NCT01698476 |
| Bioefficiency of of Conventional Fish and Vitamin D Fortified Fish | Bioefficiency of of Conventional Fish and Vitamin D Fortified Fish in Healthy Volunteers | NCT01696526 |
| The Effects of Vitamin D on Glycemic Control and Proinflammatory Markers in Adolescents With T1DM | The Effects of Vitamin D Supplementation on Glycemic Control and Proinflammatory Markers Involved in Microvascular Complications in Adolescents With Type 1 Diabetes. | NCT01697228 |
| The effect of vitamin D on breast density in women older than 40 years | The effect of vitamin D on mammographic breast density in women older than 40 years. years | IRCT138904154329N1 |
| ZA_VD | Consideration of ZOREDORON acid to an osteoporosis patient and the validity of the vitamin D medicine manufacturing use | JPRN-jRCT1080223563 |
| A Randomized Trial of Vitamin D to Reduce Respiratory Infection | Effect of Vitamin D3 Supplementation to Reduce Respiratory Infections in Children and Adolescents in Vietnam: A Blinded, Placebo-controlled Randomized Controlled Trial | NCT01705314 |
| Paricalcitol Plus Gemcitabine and Nab-paclitaxel in Metastatic Pancreatic Cancer | Vitamin D Receptor Agonist Paricalcitol Plus Gemcitabine and Nab-paclitaxel in Patients With Metastatic Pancreatic Cancer | NCT03520790 |
| a study to evaluate the role of vitamin-D supllementation in teatment of patints with type 2 diabetes | A Randomized, two arm, single centre study to assess the effect of Vitamin D supplementation on glycemic control in type 2 diabetes patients who are not well controlled on current treatment and who are vitamin D deficient. | CTRI/2012/10/003059 |
| Effect of High-Dose Vitamin D on Bone Density in Osteogenesis Imperfecta | Effect of High-Dose Vitamin D on Bone Density in Osteogenesis Imperfecta | NCT01713231 |
| Gestational diabetes and vitamin D | The Impact of Vitamin D Supplementation in Gestational Diabetes Cases on Post-Partum Glucose Tolerance and Insulin Resistance: A Randomized Controlled Trial | IRCT2012101611144N1 |
| A Study of Combined Deferasirox, Vitamin D and Azacytidine in High Risk MDS | Phase I-II Study of Association of Deferasirox, Vitamin D and Azacytidine as Treatment of High Risk MDS (IPSS Int-2 and High) | NCT01718366 |
| Relationship between Vitamin A or Vitamin D deficiency and ocular common diseases in children | Relationship between Vitamin A or Vitamin D deficiency and ocular common diseases in children | ChiCTR-ONRC-14004251 |
| Does Vitamin D supplementation in pregnancy improve maternal glucose metabolism or prevent gestational diabetes? | Effect of high-dose versus low-dose vitamin D supplementation in pregnancy on maternal glucose metabolism and the risk of gestational diabetes. | ACTRN12612001145897 |
| Vitamin D Treatment, Pharmacogenetics and Glucose Metabolism | A Randomized, Double-Blind, Placebo Controlled Trial to Evaluate the Effects of Vitamin D Supplementation on Metabolic and Fertility Parameters in PCOS Women | NCT01721915 |
| Phase IIb Randomized, Double-Blind, Placebo-Controlled, Dose Ranging Trial to determine the safety and efficacy of Vitamin D3 in preventing the risk of MS in Patients with a first demyelinating event. | Phase IIb Randomized, Double-Blind, Placebo-Controlled, Dose Ranging Trial to determine the safety and efficacy of Vitamin D3 in preventing the risk of MS in Patients with a first demyelinating event. | ACTRN12612001160820 |
| Pharmacogenetics of Vitamin D Supplementation in Tuberculosis | The Pharmacogenetics of Vitamin D Supplementation in Tuberculosis | NCT01722396 |
| Vitamin D Intervention in Infants | Vitamin D Intervention in Infants | NCT01723852 |
| Effect of Vitamin D on the Honeymoon Period in Children and Adolescents With Type 1 Diabetes | Effect of Vitamin D Supplementation on Rate of Partial Clinical Remission in Children and Adolescents With Type 1 Diabetes | NCT01724190 |
| Effect of Vitamin D Supplementation on Glucose Tolerance in Subjects at Risk for Diabetes With Low Vitamin D. | Effect of Vitamin D Supplementation on Oral Glucose Tolerance in Subjects Exhibiting Marginal Vitamin D Status and an Increased Risk of Developing Diabetes. | NCT01726777 |
| Vitamin D to Prevent Autism in Newborn Siblings | Study of Vitamin D to Prevent Autism in Newborn Siblings | NCT01366885 |
| Effects of Vitamin D Supplementation on Obesity, Inflammatory and Metabolic Markers | The Interactive Effect of Vitamin D3 Supplementation and Vitamin D Receptor Polymorphisms on Obesity, Inflammatory and Metabolic Markers in Overweight Women With Hypovitaminosis D | NCT05376865 |
| Dry Eye Disease in the Vitamin D and Omega-3 Trial (VITAL) | Dry Eye Disease in the Vitamin D and Omega-3 Trial (VITAL) | NCT01880463 |
| Vitamin D Supplementation for Bipolar Depression | Randomized Double-Blind Placebo-Controlled Pilot Study of Vitamin D Supplementation for the Treatment of Bipolar Depression | NCT01884844 |
| Clinical Study For Studying the Absorption of Vitamin D3 Oral Spray in comparison with Vitamin D3 Capsule In Healthy and Unhealthy Subjects Under Fed Conditions After One Month Dose Administrations. | A Randomized, Open-label, Balanced, Two-period, Two-treatment, Two way Cross-over Study For Studying the Absorption of Test Product: D-LIGHTâ?¢ (Vitamin D3 Oral Spray) in comparison with Reference Product: Uprise-D3 (Vitamin D3 Capsule 1000 IU) In Healthy and Unhealthy Subjects Under Fed Conditions After One Month Dose Administrations. | CTRI/2013/06/003770 |
| Vitamin D for correcting deficiency in adolescents: a generalpractice-based randomised controlled trial | Vitamin D deficient adolescents randomised to 50000 international units (IU) of vitamin D3 given orally monthly or 150000 IU of vitamin D3 given orally 3-monthly or placebo given monthly and 3-monthly, assessed by correcting vitamin D deficiency, feasibility of recruiting adolescents using general practice, and obtaining pilot bone density outcome data. | ACTRN12613000700730 |
| Effect of Vitamin D3 Supplementation on Insulin Resistance- The DIR Study | Effect of Vitamin D3 Supplementation on Insulin Resistance and Cardiovascular Risk Factors in People at High Risk of Type 2 Diabetes and Cardiovascular Disease (The DIR Study) | NCT01889810 |
| Sunshine 2 Study for Women With Diabetes | Vitamin D Supplement to Women With Type 2 Diabetes | NCT01904032 |
| Two Vitamin D Dosing Strategies in Children With Chronic Kidney Disease | Randomized Trial of Two Maintenance Doses of Vitamin D and Trace Element Status in Children With Chronic Kidney Disease | NCT01909115 |
| Effects of Vitamin D on factors that predict bowel tumour growth | Vit-D in CRC - A Randomised Double Blind Placebo-Controlled Clinical Trial Of a Single Oral Cholecalciferol Treatment Against Surrogate End Point Biomarkers (SEBs) In Colon Cancer (CRC) Patients - Vitamin D growth control biomarkers in colorectal cancer (CRC) | EUCTR2013-001664-34-GB |
| Vitamin D effect on the HbA1c in diabetic patients | Effect of vitamin D on HbA1c in diabetic patients aged 7-20 years with a vitamin D deficiency | IRCT2013022811799N2 |
| The Effect of Monthly 50,000 IU or 100,000 IU Vitamin D Supplements on Vitamin D Levels in Pre-menopausal Middle Eastern Women Living in Auckland - Middle Eastern Women's Health Study-Phase II | The Effect of Monthly 50,000 IU or 100,000 IU Vitamin D Supplements on Serum 25(OH)D Concentrations in Pre-menopausal Middle Eastern Women Living in Auckland | ACTRN12613000383763 |
| Maternal Vitamin D for Infant Growth (MDIG) Trial | Randomized Placebo-controlled Trial of Maternal Vitamin D Supplementation During Pregnancy and Lactation to Improve Infant Linear Growth in Dhaka, Bangladesh. | NCT01924013 |
| TO STUDY THE EFFECT OF PITUITARY SUPPRESSION WITH GONADOTROPHIN RELEASING HORMONE ANALOGUE ON SERUM VITAMIN D3 LEVEL. | EFFECT OF INJ TRIPTORELIN (Gonadotrophin releasing hormone analogue) ON SERUM 25 HYDROXY VITAMIN D3 LEVEL. | CTRI/2013/08/003927 |
| Vitamin D3, Folic Acid and Fexofenadine in Healthy Volunteers | Effects of Vitamin D3 (1,25 Dihydroxyvitamin D3) on Pharmacokinetics and Absorption of Folic Acid and Fexofenadine in Healthy Volunteers | NCT01856348 |
| Vitamin D supplementation and responses to vaccines in infants | Vitamin D supplementation to improve immune responses to vaccines administered in early infancy â?? The Nutrivac-D trial | CTRI/2013/04/003566 |
| The effect of vitamin D replacement on overall physical performance of patients with chronic lung disease | Evaluating the effect of vitamin D replacement on the distance during six minute walk test in patients with COPD | IRCT2013021012419N1 |
| Vitamin D Deficiency in Elderly African American Women in Central Texas | Vitamin D Deficiency in Elderly African American Women in Central Texas | NCT01971411 |
| Effects of a Supplement Enriched in Hydroxymethylbutyrate and Vitamin D on Muscle Strength in Hip Fracture | Randomized Controlled, Pilot Study to Assess the Effect of a High Protein and Calorie Nutritional Supplementation Enriched Hydroxymethylbutyrate and Vitamin D on Muscle Strength and Function in Patients With Hip Fracture. | NCT01850251 |
| The effect of Vitamin D and calcium plus vitamin D for leg cramps in pregnant women | The effect of Vitamin D and calcium plus vitamin D for leg cramps in pregnant women: A randomised controlled trial | IRCT2013040810324N12 |
| Preventing Health Disparities During Pregnancy Through Vitamin D Supplementation | Preventing Health Disparities During Pregnancy Through Vitamin D Supplementation | NCT01932788 |
| Vitamin D Intervention and Associated Changes in the Gut Microbiome and Vitamin D Levels in Healthy Adults | Association of Vitamin D Supplementation and Normal Dietary Intake of Vitamin D With Changes in the Gut Microbiome and Markers of Colorectal Cancer Risk | NCT05387876 |
| The effect of Vitamin D to prevent post-operative relapse of Crohn's Disease | The effect of Vitamin D3 to prevent post-operative relapse of Crohn’s Disease: a placebo-controlled randomized trial (DETECT) - DETECT | EUCTR2013-002838-20-NL |
| EFFECT OF ORAL VITAMIN D SUPPLEMENTATION TO LACTATING MOTHERS ON DEVELOPMENT OF RICKETS IN EXCLUSIVELY BREASTFED INFANTS- AN OPEN LABEL RANDOMISED CONTROLLED TRIAL | EFFECT OF ORAL VITAMIN D SUPPLEMENTATION TO LACTATING MOTHERS ON DEVELOPMENT OF RICKETS IN EXCLUSIVELY BREASTFED INFANTS- AN OPEN LABEL RANDOMISED CONTROLLED TRIAL | CTRI/2023/07/055303 |
| Cholecalciferol and Calcifediol Are Both Useful to Improve Vitamin D Serum Levels | Different Kinds of Vitamin D Intake and Its Metabolites: Blood Levels and Bone Mineral Density. A Randomized Clinical Trial. | NCT06138249 |
| Effect of vitamin D supplementation on diabetic patients | Assessment the effect of Vitamin D supplementation on insulin resistance and Adiponectin levels in patients with Diabetes Mellitus type 2 | IRCT2013052111421N2 |
| Supplementation of Vitamin D3 in Patients With Inflammatory Bowel Diseases and Hypovitaminosis D | Supplementation of Vitamin D3 (Cholecalciferol) in Patients With Inflammatory Bowel Diseases (IBD) and Hypovitaminosis D: A Prospective Randomized Controlled Trial. | NCT01877577 |
| Dose Finding Study in Physically Frail Elderly to Measure 25(OH) Vitamin D Levels After Supplementation With Hy.D Calcifediol 25 SD/S and Vitamin D3 | Dose Finding Study in Physically Frail Elderly to Measure 25(OH) Vitamin D Levels After Supplementation With Hy.D Calcifediol 25 SD/S and Vitamin D3 | NCT01868945 |
| Bioequivalence study for vitamin D3 pharmacokinetic parameters following single oral administrations of vitamin D3 1000 IU with cyclodextrin and vitamin D3 1000 IU without cyclodextrin in Caucasian healthy volunteers | Bioequivalence study for vitamin D3 pharmacokinetic parameters following single oral administrations of vitamin D3 1000 IU with cyclodextrin and vitamin D3 1000 IU without cyclodextrin in Caucasian healthy volunteers - Vitamin D3 bioequivalence study | NL-OMON37168 |
| Availability of Vitamin D in Orange Juice | Bioavailability of Vitamin D2 and Vitamin D3 in Supplements Compared to Vitamin D3 and Vitamin D2 in Fortified Orange Juice | NCT01778114 |
| Vitamin D and Omega-3 Adiposity Trial (VITAL Adiposity) | Interrelationship of Vitamin D Supplementation, Adiposity and CVD Risk Factors in a Randomized Clinical Trial | NCT01785004 |
| Treatment Study of Vitamin D Deficiency in Adolescents | Comparison of Two Standard High-dose Treatment Regimens for Vitamin D Deficiency in Minority Adolescents: Associations of Vitamin D Repletion With Changes in Markers of Musculoskeletal, Cardiometabolic, and Immune Function | NCT01784029 |
| Age-related Macular Degeneration (AMD) in the Vitamin D and Omega-3 Trial (VITAL) | Age-related Macular Degeneration (AMD) in the Vitamin D and Omega-3 Trial (VITAL) | NCT01782352 |
| Vitamin D and Vascular Health in Children | Vitamin D and Vascular Function in Obese Children | NCT01797302 |
| Trial of Vitamin D in HIV Progression | Trial of Vitamin D in HIV Progression | NCT01798680 |
| Placebo-controlled Trial With Vitamin D to Prevent Worsening/Relieve Aromatase Inhibitor-induced Musculoskeletal Symptoms in Breast Cancer Patients | Placebo-controlled Trial With Vitamin D to Prevent Worsening/Relieve Aromatase Inhibitor-induced Musculoskeletal Symptoms in Breast Cancer Patients | NCT01809171 |
| Vitamin D Status Impacts Inflammation and Risk of Infections During Pregnancy | Vitamin D Status Impacts Inflammation and Risk of Infections During Pregnancy | NCT01815047 |
| Role of vitamin D in improving vascular health in hypertensive patients | Effect of vitamin D on vascular health in hypertensive patients with vitamin D deficiency | CTRI/2013/03/003487 |
| Effect of vitamin D supplementation on diabetes type 2 | Effect of vitamin D supplementation on insulin resistance and glycemic control in patients with diabetes type 2 | IRCT2012061110002N1 |
| Differential Effects of Ergocalciferol and Cholecalciferol Therapies in Chronic Kidney Disease | Differential Effects of Ergocalciferol and Cholecalciferol Therapies in Chronic Kidney Disease | NCT01835691 |
| Response to increased versus standard dose of oral Vitamin D in obese and overweight children 5 to 12 years of age. | "Response to an increased dose versus standard dose of oral Vitamin D in Vitamin D deficient overweight and obese children - ""An open labelled Randomised Controlled Trial"". - nil" | CTRI/2023/07/055191 |
| The Effect of Vitamin D Supplementation in Type 2 Diabetes | The Effect of Vitamin D Supplementation on the Glycemic Control and Non-alcoholic Fatty Liver Disease in Type 2 Diabetes | NCT01854463 |
| Effects of Vitamin D Insufficiency in Man | Effects of Vitamin D Insufficiency in Man | NCT01848236 |
| Vitamin D Increases Serum Levels of the Soluble Receptor for Advanced Glycation End Products in Women With PCOS | Vitamin D Increases Serum Levels of the Soluble Receptor for Advanced Glycation End Products in Women With PCOS | NCT03644212 |
| Effect of vitamin D on insulin resistance | Evaluation the effect of vitamin D on insulin resistance in overweight and obese children with vitamin D deficiency and insulin resistance between age 5 and 15 years old | IRCT2012121811799N1 |
| Effect of Vitamin D Supplementation on Oral Glucose Tolerance Among Obese Adolescents | Effect of 4,000 IU Vitamin D3 Supplementation on Oral Glucose Tolerance Among Vitamin D Deficient Obese Adolescent | NCT01856946 |
| Pilot Assessment of the Safety of a Combination of Curcumin, Omega-3, and Vitamin D Supplements | Pilot Assessment of the Safety of a Combination of Curcumin, Omega-3, and Vitamin D Supplements (PASCOD) in Healthy Human Volunteers | NCT05414838 |
| The Impact of Vitamin D on Disease Activity in Crohn's Disease | | NCT01864616 |
| Effect of vitamin D in treatment of gestational diabetes | Effect of vitamin D supplementation on insulin resistance and inflammatory factors in women with gestational diabetes | IRCT201305115623N7 |
| Effect of adjunct high-dose vitamin D on community-acquired pneumonia in hospitalised adults - a randomised controlled trial | Effect of adjunct high-dose vitamin D on radiographic and clinical outcomes of community-acquired pneumonia in hospitalised adults - a double-blind, placebo-controlled, randomised controlled trial | ACTRN12613000582752 |
| Vitamin D3 Supplementation for Low-Risk Prostate Cancer: A Randomized Trial | Vitamin D3 Supplementation for Low-Risk Prostate Cancer: A Randomized Trial | NCT01759771 |
| Vitamin D supplementation in ckronic kidney disease | Impact of vitamin D supplementation on vascular function and oxidative stress in patients with chronic kidney disease: A Randomized Placebo controlled trial | CTRI/2013/05/003648 |
| Assessment Vitamin D Analogues Intake Pathways on the Proteins Which Involved in Metabolic Rate in Obese Subjects | | NCT01894295 |
| The D-Health Trial: A trial of vitamin D for prevention of mortality and cancer in older Australian adults. | A randomised placebo-controlled trial of high-dose vitamin D supplementation for prevention of mortality and cancer in Australian adults aged 60-79. | ACTRN12613000743763 |
| Effect of vitamin D supplementation in the treatment of patients with gestational diabetes | Effect of vitamin D supplementation on serum vitamin D levels and markers of metabolic and inflammatory in women with gestational diabetes | IRCT201306253140N11 |
| Vitamin D and non-specific musculoskeletal complaints in non-Western immigrants | Vitamin D and non-specific musculoskeletal complaints in non-Western immigrants: a randomized controlled trial | ISRCTN70909899 |
| Development of Non-invasive Method for Quantifying Vitamin D Levels in the Body Using Spectroscopy | | NCT01912898 |
| Fixation Using Alternative Implants for the Treatment of Hip Fractures (FAITH-2) | Fixation Using Alternative Implants for the Treatment of Hip Fractures (FAITH-2): A Multi-Centre 2x2 Factorial Randomized Trial Comparing Sliding Hip Screws Versus Cancellous Screws AND Vitamin D Versus Placebo on Patient Important Outcomes and Quality of Life in the Treatment of Young Adult (18-60) Femoral Neck Fractures | NCT01908751 |
| Trial of Vitamin D Fortified Milk | A Randomized Trial of Milk Fortified With Vitamin D in Colombia | NCT01909622 |
| Effects of Vitamin D-enriched mushrooms, Vitamin D and mushroom controls on cognition and mood in older adults | Randomised clinical trial testing effects of Vitamin D-enriched mushroom, Vitamin D and mushroom controls on cognition and mood in a healthy aged population. | ACTRN12613000891729 |
| Vitamin D and Type 2 Diabetes Study | Vitamin D and Type 2 Diabetes Study | NCT01942694 |
| Health Benefits of a Vitamin D Supplementation Program in AlcoholismIn Dutch: Vitamine toediening ter verbetering van de gezondheid bij vitamine D gebrek door alcoholgebruik | Health Benefits of a Vitamin D Supplementation Program in Alcoholism | NL-OMON23964 |
| SPRING – Southampton PRegnancy Intervention for the Next Generation Randomised controlled trial of an intervention to improve diet and body composition of pregnant women and their offspring | Southampton Pregnancy Intervention for the Next Generation - a randomised controlled trial of vitamin D and nurse support in improving the diet and body composition of young women and their children. - SPRING Southampton Pregnancy Intervention for the Next Generation | EUCTR2013-002854-66-GB |
| Evaluation the effect of vitamin D supplementation in patients with type I diabetes mellitus and vitamin D deficiency | Evaluation the effect of vitamin D supplementation on HbA1C in patients with type I diabetes mellitus and vitamin D deficiency | IRCT2013070113822N1 |
| The association of vitamin D and its receptor gene polymorphism with sarcopenia in the elderly | The association of vitamin D and its receptor gene polymorphism with sarcopenia in the elderly | ChiCTR-TRC-13003545 |
| A study of vitamin D efficacy on neuropathy in diabetic patients | A study of vitamin D efficacy on prepheral neuropathy in diabetic patients | IRCT2013082014416N1 |
| Improving Vitamin D status and related health in young women: The Safe-D study – Part B | Females aged between 16 and 25 years residing in Victoria, Australia, with 25 OHD levels between 25-74 nmol/L randomised to a behavioural intervention group (receiving the Safe-D m-Health mobile-based app), a pharmacological intervention (receiving Vitamin D3, 1000IU, daily by mouth) or a control group (general advice in the form of a pamphlet) for a period of 12 months, aiming to determine the effectiveness of the behavioural intervention to improve 25 OHD levels. | ACTRN12613000972729 |
| Vitamin D supplementation and obesity | Effect of vitamin D supplementation on anthropometric indices and lipid profile among overweight and obese women : A Placebo-controlled Randomized Clinical trial | IRCT2013072814195N1 |
| Vitamin D Status and Supplementation in Athletes | Vitamin D Status and Supplementation in Elite Athletes | NCT02008201 |
| Vitamin D effects in asthma | Evaluation of vitamin D supplementation on airways function and inflammation in 10-50 years old asthmaics in rasool e akram hospital | IRCT201302079608N1 |
| Effect of vitamin D supplementation on inflammatory markers, liver function, lipid profile, body composition, and sonographic findings in patients with NAFLD | Effect of vitamin D supplementation on inflammatory markers, liver function, lipid profile, body composition, and sonographic findings in patients with NAFLD | IRCT2013060411763N8 |
| Study the Effects of Vitamin D and Calcium Supplementation at Tolerable Upper Limit Doses on Calcium Metabolism. | The Effects of Vitamin D and Calcium Supplementation at Tolerable Upper Limit Doses on Calcium Metabolism in Postmenopausal White Women. | NCT02019381 |
| Effect of vitamin D on Metabolic Syndrome treatment | Effect of vitamin D supplementation on abdominal obesity, blood pressure, blood glucose and insulin resistance in patients with metabolic syndrome | IRCT2012082610669N1 |
| Study of High-Dose Oral Vitamin D for the Prevention of Liver Cancer | A Phase I Study of High-Dose Oral Vitamin D for the Prevention of Hepatocellular Carcinoma in Subjects With Cirrhosis | NCT01956864 |
| The Role of Vitamin D in the Pathophysiology of Chronic Failure | The Role of Vitamin D in the Pathophysiology of Chronic Failure: Insight in to Mechanisms of Action and Implications for Vitamin D Supplementation | NCT01993537 |
| Effect of supplementation in treatment of polycystic ovary syndrome | Effects of vitamin D and calcium co-supplementation on insulin resistance and lipid factor in overweight women with polycystic ovary syndrome | IRCT201309275623N10 |
| Dose-dependent Effects of Vitamin D on Bone Health | Randomized Double-blind Study Investigating Dose-dependent Longitudinal Effects of Vitamin D Supplementation on Bone Health | NCT01900860 |
| Vitamin D and Mood Study | Effect of vitamin D supplementation on wellbeing in young adults – a randomised controlled trial | ACTRN12613000540718 |
| Effect of calcium and vitamin D in treatment of gestational diabetes | Effect of calcium and vitamin D co-supplementation on insulin resistance and inflammatory factors in women with gestational diabetes | IRCT201311205623N11 |
| Effects of Vitamin D supplementation in Subjects with Polycystic Ovarian Syndrome (PCOS) | To investigate the effects of Vitamin D supplementation on insulin resistance and beta cell functions in Asian-Indian Subjects with Polycystic Ovarian Syndrome (PCOS): A pilot study | CTRI/2013/07/003792 |
| The effect of vitamin D addition on treatment response in patients with schizophrenia | The effect of vitamin D addition on treatment response in patients with schizophrenia in zare hospital | IRCT201210163014N6 |
| Effects of Vitamin D in Patients With Breast Cancer | A Phase 2 Randomized, Double-blind, Window of Opportunity Trial Evaluating Clinical and Correlative Effects of Vitamin D in Patients With Breast Cancer. The ICARUS Trial | NCT01948128 |
| Vitamin D Supplement for Patients With Tibial Fracture | Vitamin D Supplement for Patients With Tibial Fracture Treated With an External Ring Fixator. A Prospective Randomized Double-blind Study. | NCT01955577 |
| Can Vitamin D supplementation improve Hepatitis C cure raTes: A pilot multicentre randomised controlled clinical trial. The ViaDUCT Study | Can Vitamin D supplementation improve Hepatitis C cure rates: A pilot multicentre randomised controlled clinical trial - The ViaDUCT study | EUCTR2013-003573-10-GB |
| Calcium and Vitamin D supplemention effects on menstrual cycle in Poly Systic Ovary Syndrome women | Calcium and Vit D supplemention effects on menstrual cycle in Poly Cystic Ovary Syndrome women with National Institute Of Health criteria | IRCT201308037513N3 |
| Vitamin D Supplementation in Older Adults With Urinary Incontinence | Vitamin D Supplementation in Older Adults With Urinary Incontinence | NCT01971801 |
| The Effects of Vitamin D Supplementation on Patients With Type 2 Diabetes and Vitamin D Deficiency | A Prospective, Double Blind, Randomized, Phase 4, Clinical Trial of The Effects of Vitamin D Supplementation on Patients With Type 2 Diabetes and Vitamin D Deficiency | NCT01991054 |
| Inter-relationship Between Vitamin D Requirements and Calcium Intake in Older Adults | Randomized Controlled Trial to Explore the Inter-relationship Between Vitamin D Requirements and Calcium Intake | NCT01990872 |
| Vitamin D Supplementation on Surrogate Markers of Atherosclerosis | Effect of Vitamin D Supplementation on Surrogate Markers of Atherosclerosis in North Indian Individuals With Pre-diabetes and Low Vitamin D Levels: a Randomised Controlled Trial. | NCT05478291 |
| Does a High Protein Enriched Drink and Vitamin D Enhance the Health Benefits of Progressive Resistance Training Program in Older Adults with Type 2 Diabetes? | Does a High Protein Enriched Drink and Vitamin D Enhance the Health Benefits of the Lift for Life (Registered Trademark) Resistance Training Program on Glycaemic Control, Body Composition and Cardiometabolic Risk Factors in Older Adults with Type 2 Diabetes? | ACTRN12613000592741 |
| A study of interferon beta/ ribavirin plus non-activated vitamin D combination therapy for chronic hepatitis C and decompensated cirrhosis patients. | A study of interferon beta/ ribavirin plus non-activated vitamin D combination therapy for chronic hepatitis C and decompensated cirrhosis patients. - Interferon beta with/without ribavirin plus non-activated vitamin D combination therapy for chronic hepatitis C and decompensated cirrhosis patients. | JPRN-UMIN000010812 |
| Vitamin D + Telaprevir + Peginterferon + Ribavirin for of Hepatitis C Genotype 1 | A Pilot Trial of the Safety and Efficacy of Telaprevir +Peginterferon +Ribavirin +Vitamin D3 Among Treatment-naive Veterans Infected With Genotype 1 Hepatitis C Virus | NCT01890772 |
| the Effect of Vitamin D on the Serum Thioredoxin, TBP-2, Thioredoxin Reductase, Gene Expression of TBP-2 in Patients With Type II Diabetes | | NCT01876563 |
| Comparison of Absorption of Vitamin D in Cystic Fibrosis | Vehicles for the Absorption of Vitamin D in Cystic Fibrosis: Comparison of Powder vs Oil | NCT01880346 |
| Impact of Vitamin D Supplementation on Severity of Pediatric Atopic Dermatitis | Impact of Vitamin D Supplementation on Clinical Severity and Immunologic Tolerance of Pediatric Atopic Dermatitis | NCT01996423 |
| To study the correlation between vitamin D levels and asthma control and effect of supplementation of vitamin D on asthma control (both clinically as well as on laboratory markers) | Evaluation of vitamin D in asthma : Its effect on inflammatory markers and impact on management | CTRI/2013/06/003757 |
| A study to investigate the role of Vitamin D in inflammation of the tissues surrounding the teeth (CHRONIC PERIODONTITIS). | Vitamin D and Chronic Periodontitis- A Randomised Double Blinded Placebo Controlled Parallel Clinical Trial. - VITDCP | CTRI/2013/06/003758 |
| Antiresorptive Effect of Treatment With Risedronate and Vitamin D in Postmenopausal Patients | Risedronate With High-dose Vitamin D Resolves Hyperparathyroidism and Hypovitaminosis D But Not Osteoporosis in Mexican Postmenopausal Patients | NCT05346419 |
| Effects of Vitamin D Supplementation on Glucose Metabolism in Women With Former Gestational Diabetes Mellitus | The Effects of Vitamin D Supplementation on Blood Glucose and Markers of Metabolic Syndrome in Women With Vitamin D Deficiency and Previous Gestational Diabetes Mellitus | NCT01992133 |
| Effects of vitamin D and probiotic supplements in older people | Influence of vitamin D and a probiotic on inflammation and gut bacteria | ISRCTN10131460 |
| The effect of vitamin D on the outcome of patients with cerebral hemorrhage hospitalized in the intensive care unit | Evaluation of vitamin D administration on intensive care unit patient’s with Aneurysmal SAH outcomes: A randomized controlled trial study | IRCT20211208053333N1 |
| Vitamin D Intervention Trial in Healthy Chinese, Phase II | Knowledge Innovation Project of CAS - Genetic and Nutritional Association Studies on Metabolism-related Diseases in Chinese Population -- Vitamin D Intervention Study | NCT01998763 |
| Intralesional Vitamin D3 Versus Intralesional Acyclovir in Treatment of Plantar Warts | Intralesional Vitamin D3 Versus Intralesional Acyclovir in Treatment of Plantar Warts | NCT05324904 |
| Vitamin D Supplementation and the Immune Response | Impact of Vitamin D Supplementation on Immune Functions: Study in Subjects Aged Over 65 Years Vaccinated Against Influenza | NCT01893385 |
| The efficacy of vitamin D supplementation in infants on bone mineral content: A double blind randomized controlled trial. | Vitamin D Infant Bone Mineral Content Study | ACTRN12613000732785 |
| Vitamin D as an add on Therapy in the Treatment of Diabetic Peripheral Neuropathy | Effectiveness of Vitamin D as a supplement with Conventional Therapy in the Treatment of Diabetic Peripheral Neuropathy - A Randomized Controlled Clinical Trial | CTRI/2018/10/015983 |
| Effects of Vitamin D and Omega-3 Fatty Acids on Infectious Diseases and hCAP18 (VITAL Infection) | Effects of Vitamin D and Omega-3 Fatty Acids on Infectious Diseases and hCAP18 | NCT01758081 |
| EFFECT OF VITAMIN D3 SUPPLEMENTATION ON INSULIN SENSITIVITY IN PREDIABETES. | EFFECT OF VITAMIN D3 SUPPLEMENTATION ON INSULIN SENSITIVITY IN PREDIABETES â?? A RANDOMIZED PLACEBO CONTROLLED TRIALâ?? | CTRI/2012/12/003221 |
| Study to Assess Prevention of Oxaliplatin-induced Neurotoxicity Through Vitamin D Pathway | Phase II Study to Assess Prevention of Oxaliplatin-induced Neurotoxicity Through the Vitamin D Pathway | NCT01499940 |
| Effect of vitamin D replacement in patients with chronic kidney disease | Randomised controlled trial to determine the effect of vitamin D replacement on arterial stiffness and cardiometabolic risk factors in vitamin D deficient stage 3-5 chronic kidney disease patients | ACTRN12611001113943 |
| The Role of Vitamin D Supplementation on Well Being and Symptoms of Depression During the Winter Season in Health Service Staff | | NCT01462058 |
| Effect of vitamin D supplementation on pulmonary function, airway infections and physical performance in patients with COPD: a randomized controlled trial | Effect of vitamin D supplementation on pulmonary function, airway infections and physical performance in patients with COPD: a randomized controlled trial - Vitamin D supplementation and pulmonary function | NL-OMON38400 |
| Vitamin D supplementation for the treatment of Behcet's disease | A randomized, double-blind controlled study of the efficacy of vitamin D supplementation compared with placebo on treatment of Behcet's disease | IRCT201212216975N4 |
| Vitamin D Supplementation on 15-Prostaglandin Dehydrogenase Expression in Barrett's Esophagus | Effect of Vitamin D Supplementation on 15-Prostaglandin Dehydrogenase Expression in Barrett's Esophagus | NCT01465113 |
| Vitamin D and Adipose Tissue Inflammation | Vitamin D and Adipose Tissue Inflammation | NCT01477034 |
| Effect of Vitamin D3 on Cardiovascular Risk Factors | Effect of Vitamin D3 on Cardiovascular Risk Factors: a Randomized Trial in Human | NCT01501916 |
| Calcium and Vitamin D for the prevention of recurrence of colorectal adenoma | A randomized controlled clinical trial of calcium and Vitamin D for the prevention of initial and recurrence of colorectal adenoma. | ChiCTR-TRC-11001685 |
| Comparative Effectiveness of Vitamin D and Repletion Strategies | A Comparative Effectiveness Trial of High-quality Vitamin D3 Nutritional Supplements to Replete Serum Vitamin D | NCT01524874 |
| Comparison of depot versus daily vitamin D3 for supplementation in refugees in Western Australia | Randomized controlled trial comparing depot and daily vitamin D3 therapy in 0-16 year old refugees in Western Australia looking at the change in 25(OH)D levels as the primary outcome | ACTRN12611001177943 |
| Sunweavers: Supporting Native American Women's Vitamin D Research | Sunweavers: Supporting Native American Women's Vitamin D Research | NCT01490333 |
| Vitamin D Supplementation in Multiple Sclerosis | A Randomized Controlled Trial of Vitamin D Supplementation in Multiple Sclerosis | NCT01490502 |
| Vitamin D3 Effects on Musculoskeletal Symptoms With Use of Aromatase Inhibitors | Phase 2 Study Vitamin D3 Effects on Musculoskeletal Symptoms With Use of Aromatase Inhibitors | NCT01509079 |
| A pilot study of the impact of high-dose vitamin D supplementation on non-alcoholic steatohepatitis | A pilot study of the impact of high-dose vitamin D supplementation on non-alcoholic steatohepatitis | ACTRN12611001287921 |
| Serum vitamin D profile after a single dose of 60,000 or 120,000 units of oral cholecalciferol in medical staff | Dosing and regimes of vitamin D supplementation required for optimal serum vitamin D in adults. | CTRI/2011/12/002308 |
| A randomized, double blind, comparative study of vitamin D3 versus placebo in post-stroke rehabilitation patients | A randomized, double blind, comparative study of vitamin D3 versus placebo in post-stroke rehabilitation patients - RCT with vitamin D for post-stroke rehabilitation patients | JPRN-UMIN000007002 |
| The Effect of Fat on Vitamin D Absorption | The Effect of Fat on Vitamin D Absorption After a Single Oral Dose | NCT01519986 |
| Vitamin D and muscle strength in female dancers and gymnasts | The effect of 12 months of cholecalciferol supplementation on muscle strength, bone mineral density and respiratory infections in female adolescent gymnasts and dancers | ACTRN12612000031864 |
| Effects of supplementation with vitamin D in patients with chronic kidney disease | Effects of supplementation with vitamin D3 in the cardiovascular system in patients with chronic kidney disease in predialysis | RBR-95j5pm |
| Vitamin D Intervention Trial in Healthy Chinese | Knowledge Innovation Project of CAS - Genetic and Nutritional Association Studies on Metabolism-related Diseases in Chinese Population -- Vitamin D Intervention Study:A Pilot Study | NCT01817036 |
| Impact of Vitamin D Supplementation on Cardiometabolic Risk Factors [The Daily D Health Study] | The Impact of Vitamin D Supplementation on Cardiometabolic Risk Factors in Schoolchildren | NCT01537809 |
| Finnish Vitamin D Trial (FIND) | Finnish Vitamin D Trial (FIND) | NCT01463813 |
| Vitamin D Supplementation in Adult Crohn's Disease | Vitamin D and Immunomodulation: Effects in Crohn's Disease | NCT01369667 |
| Vitamin D in Ventilated ICU Patients | High-Dose Vitamin D and Antimicrobial Peptide Expression in Lung Failure | NCT01372995 |
| Vitamin D Replacement in Insulin Resistant South Asians | Can Vitamin D Replacement Reduce Insulin Resistance In South Asians With Vitamin D Deficiency? | NCT01385345 |
| Vitamin D HIV Study on Postmenopausal Women | The Effect of Vitamin D Repletion on Postmenopausal Women With HIV | NCT01375010 |
| Effects of monthly consumption of 100000 unit cholecalciferol during last third trimester of pregnancy on plasma iPTH and 25 (OH) D3 of the mother and cord blood | Determination of the effects of monthly consumption of 100000 unit cholecalciferol during third trimester on plasma iPTH and 25 (OH) D3 of the mother and offspring in a group of pregnant Tehranian women and a matched control group. | IRCT201104306335N1 |
| Effect of Calcium-vitamin D in efficacy of induction-ovulation in infertile women with polycystic ovary syndrome | Effect of Calcium-vitamin D in efficacy of induction-ovulation in infertile women with polycystic ovary syndrome | IRCT201105096426N1 |
| The Vitamin D and Psoriasis Study | In patients with psoriasis vulgaris, can supplementation with vitamin D3 improve psoriasis as measured by Psoriasis Area and Severity Index score? | ACTRN12611000648921 |
| Efficacy of Vitamin D Supplementation in Bariatric Surgery Patients | Preoperative Vitamin D Status and Efficacy of Therapeutic Vitamin D Supplementation Postoperatively in Bariatric Surgery Patients | NCT01385098 |
| Vitamin D Supplementation in Obesity and Weight Loss (3DD Study) | A Pilot Dose Response Study to Vitamin D in Obesity and Weight Loss: Effect on Bone | NCT01631292 |
| Dietary Supplementation With 25-hydroxyvitamin D3 in Older Adults | Comparison of the Bioefficacy of Oral 25-hydroxyvitamin D3 and Vitamin D3 Supplements on Vitamin D Status in Older Adults | NCT01398202 |
| High Dose Vitamin D and Calcium for Bone Health in Individuals Initiating HAART | A Prospective, Randomized, Double-Blind Phase II Trial of High-Dose Vitamin D and Calcium for Bone Health in HIV-Infected Individuals Initiating Highly Active Antiretroviral Therapy (HAART) | NCT01403051 |
| Vitamin D and Longevity (VIDAL) Trial: Randomised Feasibility Study | Feasibility study for a large randomised controlled trial measuring the effect of oral vitamin D on morbidity and mortality in men and women aged 65-84 | ISRCTN46328341 |
| Vitamin D and Physical Activity on Bone Health | The Effect of High-Dose Vitamin D and Physical Activity on Bone Health in Breast Cancer Patients Receiving Hormonal Therapy | NCT01419730 |
| Effects of Vitamin D Supplementation During Pregnancy on Clinical Outcomes and Immune Function | Assessment of Inflammatory Markers and Pregnancy Outcomes in Vitamin D-Supplemented Women at Risk of Vitamin D Deficiency: A Double-Blind, Randomized Controlled Trial | NCT01417351 |
| Study of Vitamin D Supplementation on Improvement of Gums Health | The Effect of Vitamin D Supplementation on the Periodontal Health and Associated Outcomes in Pregnant Women | NCT01422122 |
| A 12-week clinical double-blind, randomised study of vitamin D versus placebo in patients with chronic kidney disease stage 3-4 (CHICK). | A 12-week clinical double-blind, randomised study of cholecalciferol versus placebo in patients with chronic kidney disease stage 3-4 (CHICK). - Vitamin D in chronic kidney disease | EUCTR2011-002586-38-SE |
| Evaluation of outcomes from correction of vitamin D levels in residential care facility residents | A randomised, double-blind, placebo controlled cohort study of the benefits of sufficient levels of vitamin D3 as defined by decreasing the number of fractures, acute illnesses and exacerbation of chronic conditions, the need for hospitalisation as well as the mortality rate for permanent residents of residential care facilities. | ACTRN12611000950965 |
| Determination of Effective Vitamin D Replacement and Monitoring Strategies in Vitamin D Deficiency State | Vitamin D Dosing and Monitoring Study | NCT01430793 |
| Vitamin D Supplementation in HIV | Safe and Effective Vitamin D Supplementation in HIV | NCT01475890 |
| Study of MK-217A/Alendronate Sodium 70-mg/Vitamin D3 5600 IU Combination Tablet (MK-0217A-329) | A Phase III (Phase IV Program) Open-Label, Multicenter Clinical Trial in Thailand to Study the Effect of MK-217A/Alendronate Sodium 70-mg/Vitamin D3 5600 IU Combination Tablet (Fosamax Plus 70/5600) for 6 Months on 25-Hydroxyvitamin D Levels in the Treatment of Osteoporosis in Postmenopausal Women and Men | NCT01437111 |
| Vitamin D for Sickle-cell Respiratory Complications | Vitamin D for Sickle-cell Respiratory Complications | NCT01443728 |
| Vitamin D and Sexual Health | Vitamin D and Sexual Health (the DASH Study) | NCT01450462 |
| Role of Vitamin D in Reducing the Relapse Rate in Patients With Multiple Sclerosis | Role of Vitamin D on the Relapse Rate of Multiple Sclerosis | NCT01753375 |
| Efficacy of Different Regimens of Vitamin D Supplementation in Preterm Infants- A Randomized Double Blind Trial | Efficacy of Different Regimens of Vitamin D Supplementation in Preterm Infants- A Randomized Double Blind Trial | CTRI/2012/02/002459 |
| The efficacy and safety analysis of Peg-IFN/RBV/Vitamin D3 therapy for liver cirrhosis with hepatitis c persistent infection: RCT Study | The efficacy and safety analysis of Peg-IFN/RBV/Vitamin D3 therapy for liver cirrhosis with hepatitis c persistent infection: RCT Study - LCVID STUDY | JPRN-UMIN000007400 |
| Effects of vitamin D and calcium supplementation in type 2 diabetic patient | Effects of vitamin D and calcium supplementation on inflammatory biomarkers and adipocytokins in patients with type 2 diabetes | IRCT2012072910433N1 |
| The Effect of Oral Vitamin D Versus Narrow-Band UV-B Exposure on the Lipid Profile | The Effect of Oral Vitamin D Versus Narrow-Band UV-B Exposure on the Lipid Profile | NCT01688102 |
| Bioavailability of Vitamin D in Children and Adolescents With Crohn's Disease | Bioavailability of Vitamin D in Children and Adolescents With Crohn's Disease. | NCT01692808 |
| The effect of vitamin D supplementation on blood pressure in hypertensive patients with vitamin D deficiency | The effect of vitamin D supplementation on blood pressure in hypertensive patients with vitamin D deficiency | IRCT2012090310724N1 |
| Postoperative treatment with Vitamin D for patients with a history of Bariatric Surgery in C and U County. | Postoperative treatment with Vitamin D for patients with a history of Bariatric Surgery in C and U County. - SOL | EUCTR2012-002217-19-SE |
| VITamin D and OmegA-3 TriaL (VITAL): Fractures, Vitamin D and Genetic Markers | VITamin D and OmegA-3 TriaL (VITAL): Fractures, Vitamin D and Genetic Markers | NCT01704859 |
| The effect of Vitamin D supplementation on serum cardiovascular biomarkers | The effect of oral Vitamin D3 supplementation on cardiovascular risk factors in post-menopausal women in Gorgan | IRCT2012091810868N1 |
| DIetary Supplements, Executive funcTions and Vitamin D (DIET-D) | DIetary Supplements, Executive funcTions and Vitamin D (DIET-D): a Double-blind Randomized Controlled Trial | NCT01708005 |
| Study on the Effects of a Recommendation Based Supply of Vitamin D3 in Healthy Volunteers | Study on the Effects of a Recommendation Based Supply of Vitamin D3 in Healthy Volunteers - a Randomized Trail | NCT01711905 |
| Vitamin D3 Treatment in Pediatric Systemic Lupus Erythematosus | Vitamin D3 Effects on Immune Function in Pediatric Systemic Lupus Erythematosus (SLE) | NCT01709474 |
| study for healthy ageing | Vitamin D3 – Omega3 – Home Exercise – HeALTHy Ageing and LongevityTrial Randomized, double-blind, placebo-controlled, multi-centre clinicaltrial - DO – HEALTH | EUCTR2012-001249-41-DE |
| Effect of Vitamin D Supplementation on Endothelial Function in Obese Adolescents | Effect of Vitamin D Supplementation on Endothelial Function in Obese Adolescents | NCT01746264 |
| Randomised Double Blind Placebo Controlled Study to Determine the Effects of Vitamin D supplementation on Platelet and Vascular function in patients with Vitamin D insufficiency and known Coronary artery or peripheral vascular disease | Randomised Double Blind Placebo Controlled Study to Determine the Effects of Vitamin D supplementation on Platelet and Vascular function in patients with Vitamin D insufficiency and known Coronary artery or peripheral vascular disease | ACTRN12612001221842 |
| Comparison of conventional dose with high dose vitamin D in osteoporotic or osteopenic (T Score < -1) women over 50 yrs referring to Shariati Hospital | High dose vitamin D supplement versus conventional dose in women over 50 years with osteoporosis and osteopenia (T Score < -1) | IRCT201106126780N1 |
| Vitamin D for Women at Increased Risk of Developing Ovarian, Fallopian, or Primary Peritoneal Cancer | A Randomized Controlled Pilot Trial of Vitamin D3 Replacement of Placebo Followed by Bilateral Salpingo-Oophorectomy for Women at Increased Risk of Developing Ovarian, Fallopian, or Primary Peritoneal Cancer. | NCT01744821 |
| Vitamin D for Schizophrenia | Vitamin D Supplementation as Adjunct to Clozapine-treated Chronic Schizophrenia Patients | NCT01759485 |
| DO-HEALTH / Vitamin D3 - Omega3 - Home Exercise - Healthy Ageing and Longevity Trial | Vitamin D3 - Omega3 - Home Exercise - Healthy Ageing and Longevity Trial (Acronym: DO-HEALTH) | NCT01745263 |
| VITamin D and OmegA-3 TriaL: Effects on Bone Structure and Architecture (VITAL) | VITamin D and OmegA-3 TriaL: Effects on Bone Structure and Architecture | NCT01747447 |
| Opne label trial to compare the efficacy and safety parameters of the once-a-week or once-a-month administered 7000 IU, or 30000 IU vitamin D (cholecalciferol) to a 1000 IU dosage applied daily. | Controlled, randomized, four-arm comparative, open label, multi-centric trial to compare the efficacy and safety parameters of the once-a-week or once-a-month administered 7000 IU, or 30000 IU vitamin D (cholecalciferol) to a 1000 IU dosage applied daily in vitamin D deficient patients | EUCTR2012-005232-29-HU |
| Vitamin D and Mammographic Breast Density | A Randomized Double-blind Placebo-controlled Trial of the Effect of Vitamin D Supplementation on Breast Density in Premenopausal Women | NCT01747720 |
| Vitamin D Absorption in HIV Infected Young Adults Being Treated With Tenofovir Containing cART | A Randomized, Double-Blind, Placebo-Controlled Trial of the Safety and Effectiveness of Vitamin D3 50,000 IU Every 4 Weeks to Increase Bone Mineral Density and Decrease Tenofovir-Induced Hyperparathyroidism in Youth With HIV Infection Being Treated With Tenofovir-Containing Combination Antiretroviral Therapy (cART) | NCT01751646 |
| Effect of oral vitamin D on serum pro-B- type natriuretic peptide in peritoneal dialysis patients. | Effect of oral vitamin D on serum pro-B- type natriuretic peptide in peritoneal dialysis patients. | IRCT201303252417N12 |
| Metabolic Syndrome and Insulin Resistance at Allina | Randomized, Controlled Trial of Vitamin D Replenishment in Metabolic Syndrome | NCT01545830 |
| A Large Randomized Trial of Vitamin D, Omega-3 Fatty Acids and Cognitive Decline | A Large Randomized Trial of Vitamin D, Omega-3 Fatty Acids and Cognitive Decline | NCT01669915 |
| Effects of Vitamin D and Calcium Supplementation on Inflammatory Biomarkers and Adypocytokines in Diabetic Patients | Effects of Vitamin D and Calcium Supplementation on Inflammatory Biomarkers and Adypocytokines in Diabetic Patients | NCT01662193 |
| Correlation Between Vitamin D Serum Level and Early Implant Failure | Correlation Between Serum Vitamin D Level And Early Implant Failure | NCT05956561 |
| Vitamin D as a Supplement Against Falls in Elderly Study | Effects of Vitamin D Supplementation on Fall Risk and Functional Outcomes in Older Adults With Insufficient Vitamin D Levels: A Pilot Study | NCT01827345 |
| Optimizing Vitamin D in the Elderly | Optimizing Vitamin D in the Elderly | NCT01554241 |
| Therapeutic effects of vitamin D3 in women with recurrent spontaneous abortion | Study of the effect of 1.25 Dihydroxy-vitamin D3 on the Th17/Treg (Cd4, FoxP3) ratio in the women with recurrent spontaneous abortion with vitamin D3 deficiency candidate for lymphocyte therapy | IRCT201201258820N1 |
| Effect of Vitamin D supplementation in HIV-infected children, adolescents and young adults with hypovitaminosis D. | Effect of Vitamin D supplementation in HIV-infected children, adolescents and young adults with hypovitaminosis D. | EUCTR2011-000593-54-IT |
| Treatment of Non-alcoholic Steatohepatitis (NASH) Patients With Vitamin D | | NCT01571063 |
| Efficacy of Vitamin D in Colorectal Cancer Chemoprevention | | NCT01574027 |
| The Effect of Vitamin D Repletion in Patients With Hepatocellular Carcinoma on the Orthotopic Liver Transplant List | The Effect of Vitamin D Repletion in Patients With Hepatocellular Carcinoma on the Orthotopic Liver Transplant List | NCT01575717 |
| Biochemical Efficacy and Safety Trial of vitamin D (BEST-D) | Biochemical Efficacy and Safety Trial of vitamin D (BEST-D): a dose-finding trial assessing biochemical and vascular effects of high dose vitamin D | ISRCTN07034656 |
| Safety and Pharmacokinetic Characteristics of DP-R206(Vitamin D3) in Healthy Adult Volunteers | Randomized, Open-label Crossover Study to Evaluate Comparative Pharmacokinetics of Vitamin D3 Between DP-R206(150mg Ibandronate / 24,000 IU Vitamin D3 Tablet) and a 24,000 IU Vitamin D3 in Healthy Adult Volunteers | NCT01577849 |
| Vitamin D, Bones, Nutritional and Cardiovascular Status | Are Bone, Nutritional and Cardiovascular Status of French Children and Adolescents, Correlated With Their Vitamin D Status? | NCT01832623 |
| Associations between serum vitamin D Level with physical activity and cardiorespiratory fitness in healthy adults | Associations between serum vitamin D Level with physical activity and cardiorespiratory fitness in healthy adults - serum vitamin D Level and physical activity and cardiorespiratory fitness | JPRN-UMIN000007853 |
| The effect of vitamin D in Optic Neuritis outcome | The effect of vitamin D3 supplemenation in the prevention of Optic Neuritis conversion to Multiple Sclerosis in patients with low serum vitamin D status after one year follow up:a randomized double blind clinical trial. | IRCT201205319919N1 |
| The Effect Of Vitamin D On Measures Of Bone Health And Gene Expression | The Effect of Vitamin D on Measures of Bone Health and Gene Expression | NCT01696409 |
| Impact of Vitamin D Supplementation on Cardiac Structure and Function | Vitamin D and Omega-3 Trial: Ancillary Study (VITAL-Echo) on the Impact of Vitamin D Supplementation on Cardiac Structure and Function | NCT01630213 |
| Study of Vitamin D and Omega-3 Supplementation for Preventing Diabetes | Diabetes Prevention in the Vitamin D and Omega-3 Trial | NCT01633177 |
| Effects of Vitamin D and Marine Omega-3 Fatty Acids on Anemia | Effects of Vitamin D and Marine Omega-3 Fatty Acids on Anemia in the Elderly | NCT01632761 |
| Vitamin D3 Supplementation for Heart Failure Patients | Double-Blind, Placebo-Controlled Trial of Vitamin D3 (Cholecalciferol) Supplementation for Heart Failure Patients | NCT01636570 |
| Effect of vitamin D supplementation on glucose control and inflammatory response in type II diabetic patients. | Effect of vitamin D supplementation on glucose control and inflammatory response in type II diabetic patients. | ACTRN12612000714886 |
| Human Pharmacology Trial of Calcium-vitamin D3 Tablet in Healthy Participants | A Two Period, One-sequence Open-label Study of a Newly Developed Calcium Carbonate-vitamin D3 Chewable Tablet Formulation (Calcium 500 mg and Vitamin D3 800) Dosed for Three Days to Investigate the Effect on Urine Calcium and Serum Parathyroid Hormone (PTH) as Measurements of Intestinal Calcium Absorption in Healthy Postmenopausal Women and Healthy Men Compared to Baseline. | NCT01639222 |
| Vitamin D Treatment in Ulcerative Colitis | Vitamin D Treatment in Ulcerative Colitis | NCT01640496 |
| Vitamin D, Cardiovascular Disease, and African Americans | Vitamin D and Early Markers of Cardiovascular Disease in African Americans | NCT01655810 |
| The effects of vitamin D supplementation in infancy on immune development | In infants with a family history of allergic disease, vitamin D supplementation from birth to 6 months of age will be compared to no vitamin D supplementation on the outcomes of infant vitamin D status and immune function. | ACTRN12612000787886 |
| Pharmacokinetics of Vitamin D in Multiple Sclerosis and in Health | Pharmacodynamic and Immunologic Effects of Vitamin D Supplementation in Patients With Multiple Sclerosis and Healthy Controls | NCT01667796 |
| vitamin d intake in type 2 diabetic male patients: can it increase free testosterone?a clinical trial placebo -controlled (non active similar looking product as vitamin D) | Vitamin D Supplementation to increase free testosterone in Type 2 Diabetes Mellitus men: a Placebo-controlled Randomized Clinical Trial | EUCTR2018-001751-12-BE |
| Effect of Vitamin D on Cognitive Decline of Patients With Memory Complaint | Effect of Vitamin D on Cognitive Decline of Patients With Memory Complaint | NCT02185222 |
| Rapid Normalization of Vitamin D Deficiency in PICU | Rapid Normalization of Vitamin D Deficiency in PICU: a Multi-Centre Phase III Double-Blind Randomized Controlled Trial | NCT03742505 |
| Effect of vitamin D pills on Menstrual pattern, levels of Sexual hormones and Sexual function in women with Multiple sclerosis | Clinical trial to evaluate the effect of vitamin D supplements on menstrual pattern, levels of Sexual hormones and sexual function in women with multiple sclerosis | IRCT2016061528449N4 |
| Vitamin D and lifestyle Intervention for gestational diabetes mellitus (GDM) prevention | DALI: Vitamin D And Lifestyle Intervention for gestational diabetes mellitus (GDM) prevention: a randomised controlled trial | ISRCTN70595832 |
| The effects of Zinc, vitamin D supplementation and co-supplementation of them versus placebo on adipokines and indicators related to metabolism in over weight and obese subjects | The effects of Zinc, vitamin D supplementation and co-supplementation of them versus placebo on adipokines and indicators related to metabolism in over weight and obese subjects | IRCT201608082365N13 |
| Preventive effects of vitamin D on seasonal influenza in infants | Preventive effects of vitamin D on seasonal influenza in infants | ChiCTR-IOR-16009102 |
| Muscle-Related Side Effects of Statins: Functional Impact, Mechanisms, and Potential Relief With Vitamin D Supplementation | Muscle-Related Side Effects of Statins: Functional Impact, Mechanisms, and Potential Relief With Vitamin D Supplementation | NCT01493648 |
| High Dose Vitamin D Replacement in Patients Undergoing Hematopoietic Stem Cell Transplantation | Safety and Efficacy of Single, High Dose Vitamin D Replacement in Patients Undergoing Hematopoietic Stem Cell Transplantation | NCT02876822 |
| Personalized Vitamin D Supplementation in European and African Americans | Personalized Vitamin D Supplementation in European and African Americans | NCT02362269 |
| The effect of vitamin D administration on treatment of anemia in ESRD patients with vitamin D deficiency on hemodialysis | The effect of vitamin D administration on treatment of anemia in ESRD patients with vitamin D deficiency on hemodialysis | IRCT201505152417N17 |
| Combination of excessive energy accumulation and deficiency in vitamin D and calcium on chronic non-communicable diseases and dietary intervention | Combination of excessive energy accumulation and deficiency in vitamin D and calcium on chronic non-communicable diseases and dietary intervention | ChiCTR-TRC-12002829 |
| Evaluation of vitamin D supplementation on outcome of patients with ventilator associated pneumonia | Study of the effect of vitamin D supplementation on outcome and prognostic biomarkers of VAP in patient with vitamin D deficiency | IRCT2014112920134N1 |
| Pilot Trial to Evaluate the Effect of Vitamin D on Melanocyte Biomarkers | Pilot Trial to Evaluate the Effect of Vitamin D on Melanocyte Biomarkers | NCT01477463 |
| Evaluation of Vitamin D in Women With PCOS and Sexual Dysfunction | Evaluation of Vitamin D With and Without Hormonal Contraception on Sexual Function in Women With Polycystic Ovary Syndrome | NCT02865187 |
| Effects of Vitamin D on Inflammation in Liver Disease | Effects of Vitamin D on Inflammation in Liver Disease | NCT01754961 |
| Efficacy of a vitamin D dosing regimen | Efficacy of a vitamin D dosing regimen consisting of a single oral loading dose of 200,000 IU cholecalciferol followed by 100,000 IU orally every 13 weeks in obtaining and maintaining a serum 25-hydroxyvitamin D level between 75 and 220 nmol/L in somatic and psycho-geriatric nursing home residents | NL-OMON21710 |
| Vitamin D and Breast Cancer: Does Weight Make a Difference? | Vitamin D and Breast Cancer: Does Weight Make a Difference? | NCT01472445 |
| Ultra-high Dose Vitamin D for HSCT | Pilot Study of Transplant-related Events in Patients Receiving Ultra-high-dose Vitamin D Supplementation | NCT03759262 |
| The effect of calcium, Vitamin D, and denosumab on osteoporosis and basal metabolism in postmenopausal diabetic women | The effect of calcium, Vitamin D, and denosumab on osteoporosis and basal metabolism in postmenopausal diabetic women - The effect of denosumab on basal metabolism in type 2 diabetic women | JPRN-UMIN000023292 |
| A Prospective Trial on the Effects of Vitamin D Supplementation in Collegiate Swimmers and Divers | A Prospective Trial on the Effects of Vitamin D Supplementation on 25(OH)D, Body Composition and Injury in Collegiate Swimmers and Divers | NCT01488227 |
| Vitamin D Status, Disease Specific and Quality of Life Outcomes in Patients With Cutaneous Lupus | Vitamin D Status, Disease Specific and Quality of Life Outcomes in Patients With Cutaneous Lupus | NCT01498406 |
| VItamiN D replacement to prevent Acute Lung injury following OesophagectOmy (VINDALOO-2) | Vitamin D replacement to prevent acute lung injury following oesophagectomy - a randomised placebo controlled trial | ISRCTN27673620 |
| Effect of vitamin D treatment on TSH level, in subclinical hypothyroidism & vitamin D deficient women | Impact of vitamin D treatment on TSH level, in subclinical hypothyroidism & vitamin D deficient women | IRCT2016062813612N8 |
| Intervention study of vitamin D on mild cognitive impairment among community-based elderly population | Mechanism of the influence of vitamin D3 on Alzheimer's disease based on the autophagy pathway induced by amyloid-beta via long non-coding RNA regulation | ChiCTR-IOR-16009307 |
| Vitamin D Supplementation in HIV Youth | Vitamin D Supplementation and HIV-related Complications in Children and Young Adults | NCT01523496 |
| The Effect of Vitamin D Supplementation on Muscle Power in Elite Cyclist | The Effect of Vitamin D Supplementation on Muscle Power in Elite Cyclist | NCT01518725 |
| Effect of vitamin D treatment on the improvement of metabolic syndrome | Effect of vitamin D treatment on the improvement of metabolic syndrome: a randomized single-blind trial | ISRCTN21527585 |
| The evaluation of safty and efficacy of active-form Vitamin D application on eye lids in normal subjects and patients with meibomian gland dysfunction | The evaluation of safty and efficacy of active-form Vitamin D application on eye lids in normal subjects and patients with meibomian gland dysfunction - The efficacy of active Vitamin D ointment application on the eye lids in meibomian gland dysfunction | JPRN-UMIN000016230 |
| Dietary Intake and Vitamin D Level in Adult Women | Study is to Assess the Effect of Dietary Intake of Nutrients and Level of Vitamin D in Women | NCT02921204 |
| Study of Vitamin D in Untreated Metastatic Colorectal Cancer | Randomized, Double-Blind, Phase II Trial of Vitamin D Supplementation in Patients With Previously Untreated Metastatic Colorectal Cancer | NCT01516216 |
| ND | EFFECTS OF THE VITAMIN D ADMINISTRATION ON RESPIRATORY FUNCTIONS IN PAEDIATRIC PATIENTS SUFFERING FROM EFFORT ASTHMA - | EUCTR2011-000762-35-IT |
| Effect of vitamin D supplementation on the pregnancy outcomes | Evaluation the efficacy of vitamin D supplementation during pregnancy on maternal and newborn vitamin D status and pregnancy outcomes compared with control group | IRCT2016090329675N1 |
| Comparing the effect of Therapeutic Doses of 200 and 50000 Units of Vitamin D on Serum 25(OH)D Levels in Pregnant Women Referred to Shahid Sayyad Shirazi Hospital of Gorgan between 2013-14 | Comparing the effect of Therapeutic Doses of 200 and 50000 Units of Vitamin D on Serum 25(OH)D Levels in Pregnant Women Referred to Shahid Sayyad Shirazi Hospital of Gorgan between 2013-14 | IRCT2014121120276N1 |
| The Effect of Vitamin D Substitution on the Development of Chronic Pancreatitis | The Effect of Vitamin D Substitution on Pancreatic Parenchyma and Development of Fibrosis After First Acute Alcoholic Pancreatitis: A Randomized Prospective Trial | NCT02965898 |
| Effects of a combined Vitamin D, Omega 3, Co-enzyme Q10, Zeaxanthin, Lutein and Astaxanthin supplement (Lester’s Oil) on Healthy people | Effects of a combined Vitamin D, Omega 3, Co-enzyme Q10, Zeaxanthin, Lutein and Astaxanthin supplement (Lester’s Oil) on Healthy people | ACTRN12616001316493 |
| the role of vitamin D supplementation in the prevention of cardiovascular risk factors | the role of vitamin D supplementation in the prevention of cardiovascular risk factors | EUCTR2011-003183-75-IT |
| Investigating the Effect of Vitamin D in Migraine | Investigating the Effect of Adjunctive Treatment with Vitamin D in Adults with Migraine with Vitamin D Deficiency: A Clinical Trial | IRCT20241024063488N1 |
| Alternative Treatments of Vitamin D Deficiency | Comparison of UVB and Vitamin D Supplementation in Treatment of Vitamin D Deficiency | NCT01512537 |
| A randomized controlled clinical trial of vitamin D supplementation during perinatal pregnancy to reduce recurrent abortion in patients with recurrent pregnancy loss | Clinical trial of vitamin D supplementation during perinatal pregnancy to reduce recurrent abortion in patients with recurrent pregnancy loss | ChiCTR2400091656 |
| Clinical Assessment of Vitamin D Status in Periodontitis Patients in Dental Practice | Clinical Assessment of Vitamin D Status in Periodontitis Patients in Dental Practice - VITD&PAR | DRKS00034974 |
| Evaluation Of Efficacy Of Nanoparticle Vitamin D In Patients With Vitamin D deficiency | Evaluation Of Efficacy Of a Nanoparticle based Vitamin D Formulation In Correction Of Vitamin D Levels In Patients With Documented Deficiency Or Insufficiency Of Vitamin D. | CTRI/2016/09/007282 |
| Vitamin D in secondary prevention of BPPV | Vitamin D in secondary prevention of benign paroxysmal positional vertigo: a prospective, multicenter, randomized, placebo-controlled, double-blind study (VitD@BPPV) - Vitamin D in secondary prevention of BPPV | EUCTR2015-003395-72-DE |
| The effect of vitamin D-supplementation on insulin sensitivity in non-western immigrants in the Netherlands | The effect of vitamin D-supplementation on insulin sensitivity in non-western immigrants in the Netherlands - Vitamin D-supplementation and insulin sensitivity in non-western immigrants | NL-OMON32789 |
| Vitamin D Supplementation in CKD - Vascular Function, Structure and Immune Regulation | Impact of Vitamin D Supplementation on Vascular Function, Vascular Structure and Immune Regulation in Patients With Chronic Kidney Disease and Low Vitamin D Levels - A Pilot Randomised Trial | NCT04380467 |
| Vitamin D Augmentation of Tekturna (Aliskiren) in Hypertension | Vitamin D Augmentation of Tekturna (Aliskiren) in Hypertension (VDATH) | NCT01472796 |
| Role of vitamin D in acute ischemic stroke | Role of Vitamin D and Its efficacy in acute Ischaemic Stroke: A Randomised control trial. - nil | CTRI/2024/06/068923 |
| Effect of vitamin D on metabolic bone disease in preterm infants born to mothers with insufficient levels of vitamin D | Comparison of the effect of vitamin D with doses of 400 and 1000 units per day on biochemical and radiological indicators of metabolic bone disease in premature infants born to mothers with insufficient levels of vitamin D, a double-blind randomized clinical trial | IRCT20090813002342N14 |
| Effect of supplementation in treatment of pregnancy complications | Effects of calcium and vitamin D co-supplementation on pre-elampsia parameters, metabolic status and biomarkers of oxidative stress in pregnant women at risk for pre-eclampsia | IRCT201102135444N3 |
| Efficacy and Safety of VDS+SU in the Treatment of OAB-dry in Children | Efficacy and Safety of Short-term High-dose Vitamin D Supplementation Combined With Standard Behavioral Therapy for the Treatment of Dry Overactive Bladder in Children: a Prospective, Randomized Controlled, Multicentre Clinical Study | NCT06489951 |
| A Study on the practice and evaluation of health education for young women to promote Vitamin D intake | A Study on the practice and evaluation of health education for young women to promote Vitamin D intake - A Study on the practice and evaluation of health education for young women to promote Vitamin D intake | JPRN-UMIN000054293 |
| Comparing Vitamin D Doses in children with Epilepsy on Valproate: 400 IU vs. 600 IU for Bone Health | Comparative efficacy of Daily Oral Vitamin D at 400 IU versus 600 IU for Prevention of Vitamin D Deficiency in Children with Epilepsy Receiving Valproate Monotherapy A Noninferiority Randomised Controlled Trial - NIL | CTRI/2024/07/069705 |
| Effect of Vitamin D on Symptoms of Parkinson's Disease | Effect of Vitamin D on Symptoms of Parkinson's Disease | TCTR20240708007 |
| Comparing the Concentration of Serum Vitamin D and other Cytokines in patients with Oral Lichen Planus and Healthy patients | Comparative Evaluation of Concentration of Serum Vitamin D and IL 1ß in Patients with Oral Lichen Planus and Healthy subjects - NIL | CTRI/2024/07/070360 |
| Vitamin D Improves Depression in Liver Patients | Clinical Trial Investigating the Role of Vitamin D in the Treatment of Depression in Patients With Chronic Liver Disease | NCT02359266 |
| To study the influence of Vitamin D3 supplements on the success of dental implants in Indian population. | To study the influence of Vitamin D3 supplements on the available bone quality and success of dental implants in mandibular posterior region in Indian population. -In Vivo Study - NIL | CTRI/2024/07/070815 |
| Clinical trial investigating the role of vitamin D in the treatment of depression in patients with chronic liver disease | Clinical trial investigating the role of vitamin D in the treatment of depression in patients with chronic liver disease - CLDVitD Trial | DRKS00007782 |
| The effect of vitamin D3 on benign breast tumor | The effect of vitamin D3 supplementation (cholecalciferol) on nutritional status, VDR gene expression, endocrine, metabolic, and adipokine parameters in patients with benign breast tumors:Randomized controlled clinical trial | IRCT20100209003320N24 |
| the effect of vitamin D in the treatment of chemotherapy-induced fever and neutropenia in children with malignancy | Evaluation of the effect of vitamin D in the treatment of chemotherapy-induced fever and neutropenia in children with malignancy | IRCT20240608062045N1 |
| A study about effect of Vitamin D supplementation in postmenopausal women with raised cholesterol levels for improving lipid profile | Effect of vitamin d supplementation on variables of metabolic syndrome in postmenopausal women with metabolic syndrome . | CTRI/2024/07/070979 |
| Risk of hypercalcemia with calcium/active vitamin D supplementation in teriparatide treatment of severe osteoporosis | Risk of hypercalcemia with calcium/active vitamin D supplementation in teriparatide treatment of severe osteoporosis | ChiCTR2400087449 |
| Leptin response to Training and Supplementation | The effects of two training program and vitamin D supplementation on lipid profile, leptin and body composition in obese adolescents with vitamin D deficiency | IRCT20240702062312N1 |
| Predictive Questionnaire for Vitamin D Insufficiency in Healthy Adults | A Study to Validate a Predictive Questionnaire for Vitamin D Insufficiency in Healthy Adults | NCT02408679 |
| An Evaluation of the Effect of Vitamin D Supplementation on the Cognitive Function of Older Subjects With Low Levels of This Vitamin | An Evaluation of the Effects of Vitamin D Supplementation on Specific Cognitive Functions and Depressive Symptoms of Older Subjects With Low Levels of This Vitamin | NCT02381600 |
| Psoriasis and daily low emission phototherapy; effects on disease and vitamin D level | Psoriasis and daily low emission phototherapy; effects on disease and vitamin D level - Psoriasis and SunshowerMedical | NL-OMON38060 |
| The effect of vitamin D on patients with Sepsis | Clinical trial of comparison of vitamin D and placebo on serum level of inflammatory and anti-inflammatory cytokines in patients with sepsis | IRCT2016090823552N8 |
| Prevention of Falls and Fractures in Old People by Administration of Calcium and Vitamin D. Randomized Clinical Trial | Prevention of Falls and Fractures in Old People by Administration of Calcium and Vitamin D. Randomized Clinical Trial (ANVITAD) | NCT01452243 |
| Implementation of vitamin D supplements in Australian residential aged care facilities (ViDAus Study) | Implementation of vitamin D supplements in Australian residential aged care facilities (ViDAus Study) | ACTRN12616000782437 |
| Effect of active vitamin D (calcitriol) on left ventricular hypertrophy in type 2 diabetic patients with chronic kidney disease. | Effect of active vitamin-D treatment on left ventricular hypertrophy in patients with type-2 diabetes and stage-3 chronic kidney disease. - VItamin D in left VentrIcular hypertrophy Diabetes (VIVID) Trial. | EUCTR2011-003025-10-GB |
| DALI: Vitamin D and Lifestyle Intervention for GDM Prevention: dosing study | DALI: Vitamin D and Lifestyle Intervention for GDM Prevention: dosing study - DALI | NL-OMON36181 |
| A clinical trial to study the effect of prophylactic vitamin D supplementation in children with severe acute malnutrition | A single blinded randomized control trial to study the effect prophylactic vitamin D supplementation in children with severe acute malnutrition | CTRI/2016/07/007077 |
| Effect of vitaminD supplementation on post operative surgical outcomes in children with cyanotic congenital heart disease undergoing open heart surgery: A Randomised Controlled trial | Effect of Vitamin D supplementation on outcome in children undergoing open heart surgery: A Randomised Controlled Trial. | CTRI/2017/12/010827 |
| Serum Vitamin D Level May be a Novel Potential Risk Factor In Patients With Lifelong Premature Ejaculation: A Comparative Study | Serum Vitamin D Level May be a Novel Potential Risk Factor In Patients With Lifelong Premature Ejaculation: A Comparative Study - serum vitamin D and premature ejaculation | JPRN-UMIN000023068 |
| Vitamin D and Calcium Supplement Attenuate Bone Loss Among HIV- Infected Patients Receiving Tenofovir Disoproxil Fumarate, Lamivudine or Emtricitabine and Efavirenz | Vitamin D and Calcium Supplement Attenuate Bone Loss Among HIV- Infected Patients Receiving Tenofovir Disoproxil Fumarate, Lamivudine or Emtricitabine and Efavirenz: An Open-label, Randomized Controlled Trial | NCT02827643 |
| Effect of supplementation in treatment of patients with endometrial hyperplasia | Clinical trial of the effect of vitamin D supplementation compared with the placebo on treatment and metabolic profiles in patients with endometrial hyperplasia | IRCT201606275623N86 |
| Study on the Improvement Effects of Vitamin D Combined with Exercise on Type 2 diabetes | Study on the Improvement Effects of Vitamin D Combined with Exercise on Type 2 diabetes | ChiCTR2400085631 |
| Effect of supplementation in treatment of women with polycystic ovary syndrome | Clinical trial of the effect of vitamin D supplementation compared with the placebo on metabolic profiles in women with polycystic ovary syndrome | IRCT201606115623N82 |
| Effect of Vitamin D on Retinal Changes in Patient With Optic Neuritis by Optic Coherence Tomography | The Investigation Effect of Vitamin D on Retinal Changes in Patient With Optic Neuritis by Optic Coherence Tomography | NCT01465893 |
| The Effects of Narrow Band Ultraviolet B (UVB) Phototherapy on Vitamin D levels in patients with Psoriasis and Broad band Ultraviolet B and A used for dermatitis | Patients with Psoriais and Dermatitis The Effects of Ultraviolet B and A Phototherapy On Vitamin D levels | ACTRN12611001130954 |
| Effect of vitamin D in prevention of postoperative hypocalcemia in total thyroidectomy patients | Effect of preoperative vitamin D supplementation on postoperative hypocalcemia in patients with vitamin D deficiency candidate for total thyroidectomy | IRCT2016062016077N6 |
| Evaluation of vitamin D intake and serum 25 hydroxyvitamin D concentration on calcium metabolism | Evaluation of vitamin D3 intakes up to 15,000 international units/day and serum 25 hydroxyvitamin D concentrations up to 300 nmol/L on calcium metabolism in a community setting | ISRCTN18397898 |
| A randomized clinical trial considering the effect of vitamin D supplementation on control of disease activity in rheumatoid arthritis patients patients | A randomized clinical trial considering the effect of vitamin D supplementation on control of disease activity in rheumatoid arthritis patients patients | IRCT201110016975N1 |
| Effect of an untreated vitamin D deficiency on depressive symptoms in child and adolescent psychiatric patients – a randomized controlled trial. | Effect of an untreated vitamin D deficiency on depressive symptoms in child and adolescent psychiatric patients – a randomized controlled trial. | DRKS00009758 |
| Comparison between efficiency of two different doses of vitamin D injection in depressed patients with vitamin D deficiency on depressive symptoms | Comparison between efficiency of two different doses of vitamin D injection in depressed patients with vitamin D deficiency on depressive symptoms | IRCT201105306641N1 |
| The Proposed Study Aims to Investigate the Impact of Adjunctive Vitamin D Gel Application on Gingival Crevicular Fluid Levels of Alkaline Phosphatase and Interleukin-8 in Periodontitis Patients Undergoing Phase 1 Periodontal Therapy. By Elucidating the Molecular Mechanisms Underlying the Therapeutic | Therapeutic Efficacy of Local Vitamin D Drug as an Adjunct to Mechanical Debridement in the Treatment of Periodontitis | NCT06669026 |
| Associations of Vitamin D Receptor ApaI and Tru9I Polymorphisms With the Risk of Primary Open-angle Glaucoma | Associations of Vitamin D Receptor Polymorphisms With the Risk of Primary Open-angle Glaucoma | NCT02805231 |
| Regime for Vitamin D Maintenance in Post-Operative Patients | Regime for Vitamin D Maintenance in Post-Operative Patients (D-ECISIVE) Randomized Controlled Trial | NCT06708741 |
| Effect of Vitamin D supplementation on regulation of hormones secreted, Anti Oxidant Enzyme and Apo lipoproteins in obese and overweight people undergoing low calorie diet | Effect of Vitamin D supplementation on serum DHEA, Insulin, apo B100, apo A1,PON1 and FFA in obese and overwight people undergoing low calorie diet | IRCT201609102709N38 |
| Effect of vitamin D supplementation on the glycaemic status and body fat mass in prediabetic adults: a randomized placebo- controlled trial | Effect of vitamin D supplementation on the glycaemic status and body fat mass in prediabetic adults: a randomized placebo- controlled trial | IRCT2016090529508N3 |
| The effect of Vitamin D vagi on vaginal atrophy | The effects of Vitamin D vaginal suppository on vaginal atrophy in postmenopausal women | IRCT201111158109N1 |
| A clinical trial to study the short-term outcome of Vitamin-D supplementation to vitamin- D deficient patients requiring intensive care unit hospitalization. | Supplementation of single high dose Vitamin D in deficient critically ill children and assessment of their short-term outcome- An Open Label Randomized Control Trial | CTRI/2022/10/046556 |
| A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with Parkinson disease aged between 45 and 85 years old to improve neurological signs and quality of life | A randomized, double blind, comparative study of vitamin D3 versus placebo in patients with Parkinson disease aged between 45 and 85 years old to improve neurological signs and quality of life - RCT with vitamin D for Parkinson disease | JPRN-UMIN000001841 |
| Non Hormonal Treatment of Vaginal Atrophy | The effect of vitamin D and E vaginal suppository on vaginal atrophy in women with breast cancer who taking tamoxifen | IRCT2016100229683N2 |
| Vitamin D Loading Dose in Advanced Lung Cancer | Open Clinical Trial to Validate a Short-term Vitamin D Loading and Maintenance Dose Protocol in People With Advanced Lung Cancer | NCT01631526 |
| Identification of Markers for Determining the Efficacy of Vitamin D Receptor Activator Therapy in Stage 3/4 CKD Patients | Identification of Markers for Determining the Efficacy of Vitamin D Receptor Activator Therapy in Stage 3/4 CKD Patients | NCT02018133 |
| Effect on Liver Histology of Vitamin D in Patients With Non-alcoholic Steatohepatitis | A Randomised Controlled Trial of Vitamin D Plus Plus Lifestyle Versus Lifestyle in Patients With Non-alcoholic Steatohepatitis:Effect on Liver Histology and Metabolic Parameters | NCT01623024 |
| Effect of vitamin D supplement consumption on muscle strength, muscle function and body composition in middle-aged women | Effect of vitamin D supplement consumption on muscle strength, muscle function and body composition in middle-aged women | IRCT201112182365N6 |
| Role of Vitamin D & calcium supplementation in gestational diabetic mothers | Role of Vitamin D- Calcium supplementation on Metabolic profile and Oxidative stress in Gestational Diabetes Mellitus: An Open Labeled, Parallel Arm Randomised Control Trial | CTRI/2014/12/005343 |
| Evaluation of vitamin D3 Supplementation on Serum Level of P-selectin and hs-CRP | Evaluation of vitamin D3 Supplementation on Serum Level of P-selectin and hs-CRP in Patients with Thrombosis, a Randimized Controled Trial | IRCT201112068307N1 |
| VitamIN D Treating patIents With Chronic heArT failurE | VitamIN D Treating patIents With Chronic heArT failurE | NCT01619891 |
| Effects of zinc and vitamin D separately and in combination on mood in overweight and obese subjects | Effects of zinc and vitamin D separately and in combination on mood, cortisol, tryptophan—kynurenine pathway, BDNF and hs-CRP in overweight and obese subjects | IRCT201601252394N31 |
| Neural adaptations to vitamin D supplementation in older adults: A pilot study | Effects of vitamin D supplementation on muscle function and neural activity in older women with insufficient serum 25-hydroxyvitamin D levels: A pilot study. | ACTRN12612000592842 |
| Vitamin D in the management of Childhood Atopic Dermatitis (eczema) | In children aged 2-16 with moderate to severe atopic dermatitis (eczema), is daily vitamin D3 (1000 IU/day) more effective than placebo in improving the severity of the eczema and quality of life. | ACTRN12612000570886 |
| Vitamin D therapy in patients with sickle cell disease (SCD) | Vitamin D status and vitamin D therapy in adult Bahraini sickle cell patients with chronic pain. | ACTRN12612000560897 |
| Assessment of effectiveness of oral vitamin D3 on Bacterial vaginosis in women in fertility ages | Assessment of effectiveness of oral vitamin D3 on Bacterial vaginosis in women in fertility ages | IRCT201105096284N2 |
| Preoperative Vitamin D for Post-thyroidectomy Hypocalcemia | Pre-operative Vitamin D Supplementation to Reduce Post-operative Hypocalcemia in Patients Undergoing Total Thyroidectomy: A Randomized Controlled Trial | NCT01609439 |
| Effects of Vitamin D Supplementation on SOD,IL-6 and Insulin Resistance in Type 2 Diabetes Mellitus (DM) | THE EFFECT OF VITAMIN D SUPPLEMENTATION ON IMPROVING PANCREAS BETA CELL FUNCTION IN TYPE 2 DIABETES MELLITUS: STUDY OF SOD,IL-6,PDX-1 EXPRESSION, and INSULIN RESISTANCE | NCT05596383 |
| Evaluation of the effect of supplementation with omega-3 fatty acids and vitamin D on blood sugar, lipids, cholesterol and inflammation markers, and body weight, in patients with diabetes mellitus | Effect of omega-3 fatty acid supplementation and vitamin D on the immuno-inflammatory process in patients with type 2 diabetes mellitus in Mexico | ISRCTN97792326 |
| Multicenter, randomized, double-blind, placebo controlled, parallel group trial to evaluate the effect of Vitamin D supplementation for fall prevention | Multicenter, randomized, double-blind, placebo controlled, parallel group trial to evaluate the effect of Vitamin D supplementation for fall prevention - Effect of Vitamin D supplementation for fall prevention | JPRN-UMIN000008361 |
| Effect of Vitamin D Therapy in Autism Spectrum Disorder | Impact of Serum Vitamin D Correction on the Inflammatory Markers and Habilitation Outcome in Children With Autism Spectrum Disorder | NCT05595044 |
| Cholecalciferol and Genistein Before Surgery in Treating Patients With Early Stage Prostate Cancer | Phase IIA, Randomized Placebo-Controlled Trial of Single High Dose Cholecalciferol and Daily Genistein (G-2535) Versus Placebo in Men With Early Stage Prostate Cancer Undergoing Prostatectomy | NCT01325311 |
| Adipose tissue and systemic inflammation; exploring the roles of C3 and vitamin D | Adipose tissue and systemic inflammation; exploring the roles of C3 and vitamin D - ASSISI study | NL-OMON41204 |
| vitamin D and calcium Supplementation reduces the complication of letrozole in breast cancer patients | A study on the effects of vitamin D and calcium Supplementation on side effects profile in patients of breast Cancer treated with letrozole | CTRI/2012/07/002792 |
| Assessment effect of vitamin D supplementation on insulin resistance in women with poly cystic ovarian syndrome | Assessment effect of vitamin D supplementation on insulin resistance in women with poly cystic ovarian syndrome | IRCT2014100619426N1 |
| Vitamin D3 Supplementation On Level Of Blood Glucose Among Vitamin D Deficient Adult With Prediabetes. | A Study To Assess The Effect Of Vitamin D3 Supplementation On Level Of Blood Glucose Among Vitamin D Deficient Adult With Prediabetes. | CTRI/2014/12/005290 |
| Vitamin D Deficiency and Dysautonomia | Comprehensive Assessment of Vascular and Autonomic Function in Children With Low Vitamin D | NCT03032328 |
| Effect of Vitamin D After Application With Valchlor | The Effect of Oral Vitamin D (Cholecalciferol) Supplementation After Topical Application With Valchlor | NCT02968446 |
| Role of Alphacalcidol Supplement to Reduce Pain and COMP in Geriatric Knee Osteoarthritis Patients | Role of Vitamin D (Alphacalcidol) Supplement to Reduce Pain and Cartilage Oligomeric Matrix Protein Serum Levels in Geriatric Knee Osteoarthritis Patients: A Randomized, Double-Blind, Placebo-Controlled Study | NCT04405960 |
| Effect of vitamin D in improvement of depression | Evaluating the effect of vitamine D in improvement rate of 18-65 years old patients with treatment resistant depression in ziaeian hospital in 2014 | IRCT2014080315276N2 |
| Efficacy of Higher Dose Enteral Vitamin D Supplementation in Preterm 28 - 34 Weeks of Gestational Age | The Efficacy of Enteral Vitamin D Supplementation at a Dose of 800 IU Compared to 400 IU in Preterm Infants With a Gestational Age of 28-34 Weeks Admitted to the Neonatal Care Unit | NCT06674122 |
| A New Paradigm for Vitamin D Sufficiency | A New Paradigm for Vitamin D Sufficiency: A 6-month, Randomized, Double-blind, Placebo-controlled Study to Investigate Vitamin D Status in Elderly Caucasian Women | NCT02969850 |
| The effect of vitamin D in the prevention of MS disease in first degree relatives of MS patients. | The effect of vitamin D supplementation on the gene expression of See-Saw model interleukins in the first degree of apparently healthy relatives of multiple sclerosis patients. | IRCT201008163655N2 |
| The effect of vitamin D on sexual function in women | The effect of vitamin D supplementation compared with the placebo on changing of sexual function in vitamin D-deficient women | IRCT201608053860N28 |
| Effect of vitamin D on obesity | Effects of vitamin D supplementation on sirtuin-1, Angiogenesis factors and Matrix metalloproteinases enzmes in Obese subjects with Vitamin D Insufficiency/ Deficiency | IRCT201608223320N13 |
| Effect of supplementation in treatment of cervical intraepithelial neoplasia 1 | The effect of vitamin D supplementation on treatment, metabolic profiles and hs-CRP in women with cervical intraepithelial neoplasia 1(CIN1) | IRCT201412065623N30 |
| Optimising Vitamin D Status in Older People (VDOP) | Optimising Vitamin D Status in Older People: A Randomised Controlled Trial of Vitamin D Supplementation - Optimising Vitamin D Status in Older People (VDOP) | EUCTR2011-004890-10-GB |
| Correction of vitamin D deficiency in chronic hepatitis C patients and effect on cytokines responses related to liver fibrotic pathway: A Randomized Double-Blind Placebo Control Study | Correction of vitamin D deficiency in chronic hepatitis C patients and effect on cytokines responses related to liver fibrotic pathway: A Randomized Double-Blind Placebo Control Study | TCTR20161103003 |
| Effect of supplementation in treatment of depression | Effects of vitamin D supplementation on insulin resistance and inflammatory factor in patients with depression | IRCT201412065623N29 |
| The International Polycap Study 3 (TIPS-3) | The International Polycap Study 3 (TIPS-3) is a Randomized Double-blind Placebo-controlled Trial for the Evaluation of a Polycap, Low Dose Aspirin and Vitamin D Supplementation in Primary Prevention | NCT01646437 |
| The effect of education base on Health Belief Model on promoting preventive behaviors of Vitamin D Deficiency among Middle School Girl Students. | The effect of education base on Health Belief Model on promoting preventive behaviors of Vitamin D Deficiency among Middle School Girl Students. | IRCT2014090219010N1 |
| Effect of Vitamin D Supplementation on Severity of Stress Urinary Incontinence in Premenopausal Women With Vitamin D Insufficiency | Effect of Vitamin D Supplementation on Severity of Stress Urinary Incontinence in Premenopausal Women With Vitamin D Insufficiency | NCT06689813 |
| Vitamin D and Type 2 Diabetes Mellitus | A study of effect of Vitamin D supplementation on glycemic control in newly diagnosed Type 2 Diabetes Mellitus | CTRI/2022/10/046633 |
| Calcium and vitamin-D supplementation on bone structural properties in young male Jockeys: A randomized controlled trial. | For young male jockeys, will 6-month calcium and vitamin D supplementation compared to a placebo increase tibial and radial bone strength and density | ACTRN12612000374864 |
| Effects of Vitamin D on Cardiovascular Health in Black Women | Effects of Vitamin D on Cardiovascular Health in Black Women | NCT05656742 |
| Vitamin D in prehypertention | Evaluation the bloodpressure in patients with pre_hypertention and deficiency of vitamin D 6 that are reffered to fajr clinic of mostafa khomeini hospital. | IRCT20221026056306N1 |
| To Study the role of vitamin D in asthma | EFFECT OF VITAMIN D ON ASTHMA CONTROL AND QUALITY OF LIFE IN PATIENTS OF MODERATE BRONCHIAL ASTHMA WITH VITAMIN D DEFICIENCY: A PROSPECTIVE STUDY | CTRI/2022/11/047299 |
| Different Regimens of Vitamin D in Treatment of Children With Chronic Liver Disease | Stoss Therapy Versus Weekly Regimen of Vitamin D in Treatment of Children With Chronic Liver Disease | NCT05717569 |
| Mozzarella Cheese Vitamin D and Bioavailability | Fortification of Mozzarella Cheese With Vitamin D3: Effect of High Temperature Cooking and Bioavailability of Vitamin D3 | NCT01919905 |
| Acute Effects of Juice Consumption With Biofunctional Compounds and Probiotics on Glucose Metabolism | Acute Effects of Fruit Juice Enriched With Vitamin D3 or n-3 Fatty Acids or Probiotics and the Combination of the Three Ingredients on Glucose Metabolism in Healthy Adults | NCT05702359 |
| nd | Effects of Vitamin D in patients affected by heart failure | EUCTR2011-002823-16-IT |
| Study to evaluate the pharmacokinetic of vitamin D in patients with obesity after bariatric surgery | Study to evaluate the pharmacokinetic of vitamin D (cholecalciferol) in patients with obesity after bariatric surgery in vitamin D deficiency and after normalization | EUCTR2011-006163-22-ES |
| Effect of Bazedoxifene to osteoporotic patients under active vitamin D treatment | Effect of Bazedoxifene to osteoporotic patients under active vitamin D treatment - Effect of Bazedoxifene to osteoporotic patients under active vitamin D treatment | JPRN-UMIN000007398 |
| The effect of 50000 IU Vitamin D supplement administered two weekly on gestational Diabetes Melitus | The effect of 50000 IU Vitamin D supplement administered two weekly on neonatal and pregnant women outcome | IRCT201107237097N1 |
| Vitamin D fortified milk supplementation in school children | A Randomized Double Blind Controlled Trial to Investigate the Effects of Vitamin D fortified milk on calcium-vitamin D-parathyroid hormone axis in school children, aged 11-14 years | CTRI/2012/02/002429 |
| A randomized controlled trial to asses the effect of vitamin D in patients with atopic dermatitis. | A randomized controlled trial to asses the effect of vitamin D in patients with atopic dermatitis. - Atopic dermatitis and vitamin D. | NL-OMON37457 |
| A randomized controlled trial to asses the effect of topical vitamin D in patients with atopic dermatitis. | A randomized controlled trial to asses the effect of topical vitamin D in patients with atopic dermatitis. - Atopic dermatitis and vitamin D | NL-OMON35970 |
| Open Label Clinical Trial of Vitamin D in Children With Autism | Open Label Clinical Trial of Vitamin D Dosage Tolerability, and Effect on Behavioral Measures in Children With Autism | NCT01535508 |
| Can treatment with vitamin D lower the incidence of osteoporosis (bone disease increasing the risk of fracture)? | Can treatment with vitamin D lower the incidence of osteoporosis in anorexia? | EUCTR2011-005228-17-SE |
| Cinacalcet in Management of Secondary Hyperparathyroidism in Haemodialysis Patients | An Open-label Study of Combination of Cinacalcet and Active Vitamin D Analogue in the Management of Severe Secondary Hyperparathyroidism in Haemodialysis Patients | NCT02338934 |
| Role of Calcium And Vitamin D In Nutritional Rickets And It's Management | Role of Calcium And Vitamin D In Nutritional Rickets And It's Management | NCT01578434 |
| Evaluation of Vitamin D in pre-procedural cardiac injury following angioplasty in patients with ischemic heart diseases | Randomized trial of Vitamin D in pre-procedural cardiac injury following angioplasty in patients with ischemic heart diseases | IRCT201402078307N6 |
| The effect of vitamin D on the glycemic control and non-alcoholic fatty liver disease | The effect of vitamin D on the glycemic control and non-alcoholic fatty liver disease | KCT0000406 |
| Effect of Vitamin D3 Supplementation on Insulin Resistance and Cardiovascular Risk Factors in Obese Adolescents | Significance of Vitamin D Status in Obese Adolescents- A Pilot Study to Examine the Effect of Vitamin D3 Supplementation on Insulin Resistance and Cardiovascular Risk Factors | NCT00858247 |
| Functionality, muscle strenght and balance in elderly woman after physical exercise and vitamin D supplementation | Functional capacity, muscle strenght and balance in elderly woman after physical conditioning, water aerobic and vitamin D supplementation | RBR-8qtdw4 |
| Investigation of The Effect of Vitamin D Supplementation on Apical Lesion Healing Rate: Prospective, Randomized Clinical Trial | Investigation of The Effect of Vitamin D Supplementation on Apical Lesion Healing Rate: Prospective, Randomized Clinical Trial | TCTR20221020006 |
| A prospective study of the effecty of a single intramuscular regimens versus oral vitamin D supplementation in very preterm infants | A prospective study of the effecty of a single intramuscular regimens versus oral vitamin D supplementation in very preterm infants | ChiCTR2200065194 |
| Vitamin D supplementation in the obese | Vitamin D supplementation in the obese: a pilot study | ISRCTN38158659 |
| A Study to Compare Oral Vitamin D to Placebo for the Prevention of Low Calcium in the Blood after Surgery for the Total Removal of the Thyroid Gland. | A Randomised, Double Blind, Placebo Controlled Trial to Assess the Efficacy of Preoperative Oral Vitamin D3 at Preventing Postoperative Hypocalcaemia in Patients Undergoing Total Thyroidectomy. | ACTRN12614000201673 |
| The effect of Vitamin D and Vitamin E on the severity of postpartum pain | The effect of Vitamin D and Vitamin E on the severity of postpartum pain | IRCT20220313054270N1 |
| Effect of high dose vitamin D on IL-ß blood level in patients with moderate stroke | Effect of high dose vitamin D on IL-1ß blood level in patients with moderate stroke: randomized clinical trial | IRCT20200213046484N2 |
| Impact of oral vitamin D in chronic wound patients with Vitamin D Deficiency | Impact of oral vitamin D in chronic wound patients with Vitamin D Deficiency | ChiCTR2200065482 |
| Effect of Exercise, booklet and Vitamin D3 supplement for the Management of Low Back Pain. | Effect of Therapeutic Exercise, Educational booklet and Vitamin D3 Supplement for the Management of Chronic Mechanical Low Back Pain. | CTRI/2022/11/047074 |
| The effect of vitamin D on urosepsis | Randomized clinical trial comparison of vitamin D and placebo in urosepsis | IRCT2016030223552N7 |
| Magnesium and Vitamin D Combination for Post-COVID Syndrome | Efficacy and Security of the Magnesium and Vitamin D Combination as Adjuvant Treatment of Post-COVID Syndrome. A Randomised Double-blind Clinical Trial | NCT05630339 |
| To see the efficacy of Oral Vitamin D before surgery in controlling low calcium levels after surgery | Impact of preoperative vitamin D supplementation on early post operative hypocalcemia in patients with vitamin D deficiency undergoing hemithyroidectomy | CTRI/2022/11/047125 |
| Vitamin D Supplementation in Polymorphic Light Eruption | Vitamin D3 Supplementation in Polymorphic Light Eruption: Randomized Double-blinded Placebo-controlled Trial | NCT01595893 |
| Vitamin D and Cardiovascular Events in Rheumatoid Arthritis | Association Between Baseline Vitamin D Metabolite Levels and Risk of Cardiovascular Events in Rheumatoid Arthritis Patients. A Cohort Study With Patient-record Evaluated Outcomes. | NCT02932644 |
| Effect of Vitamin D on metabolic syndrome. | Effect of vitamin D supplementation on metabolic syndrome Components in Military with metabolic syndrome | IRCT2014020211920N3 |
| Effect of vitamin D in major depression | Effect of vitamin D supplementation on depression severity, inflammatory and oxidative markers in major depressive disorder disorder | IRCT201201072394N6 |
| Effect of Vitamin D Supplementation on Blood Pressure and HbA1c Levels in Patients With T2D | Effect of Administration of 25(OH) Vitamin on Mean 24 Hour Blood Pressure and HBA1c Levels in Patients With Stable Type 2 Diabetes Mellitus | NCT01585051 |
| Effect of vitamin D supplements on cardiometabolic risk and quality of life in premenopausal women: a randomized control trial | Effect of vitamin D supplements on cardiometabolic risk and quality of life in premenopausal women: a randomized control trial | ACTRN12612000452897 |
| Effect of Vitamin D Supplementation on Bone Turnover Markers During PrEP in MSM | Effect of Vitamin D Supplementation on Bone Turnover Markers During Tenofovir-Emtricitibine Pre-Exposure Prophylaxis in Men Who Have Sex With Men; A Sub-study of CCTG 595 | NCT02367599 |
| Vitamin D supplementation in patients with fatty liver and vitamin D deficiency | Vitamin D supplementation in patients with fatty liver and vitamin D deficiency | DRKS00007816 |
| Vitamin D or placebo in treatment of uterine leiomyoma | Assessment of Vitamin D effect in compare to placebo in decreasing of leiomyoma size in patients with uterine leiomyoma | IRCT2014121511019N4 |
| The Effect of Vitamin D3 on Metabolic Disorders in Women With Ovarian Cysts and Vitamin D Deficiency | Compare The Effect of Vitamin D3 With 2 Different Doses on Metabolic Disorders in Women With Poly-cystic Ovary Syndrome and Vitamin D Deficiency. | IRCT2015100824426N1 |
| Genetic, Dietary and Environmental Influences on Vitamin D Metabolism | Genetic, Dietary and Environmental Influences on Vitamin D Metabolism | NCT02590614 |
| Effects of supplementation in the treatment of diabetic foot | Effects of vitamin D supplementation compared with the placebo on metabolic profiles, inflammatory factors and biomarkers of oxidative stress in patients with diabetic foot | IRCT201510315623N54 |
| Effect of vitamin D3 supplementation in people with vitamin D3 deficiency on fasting and 2hpp serum glucose and insulin and improvement of peripheral and visceral adipose tissue | Effect of vitamin D3 supplementation in people with vitamin D3 deficiency on fasting and 2hpp serum glucose and insulin and improvement of peripheral and visceral adipose tissue | IRCT2015061622767N1 |
| Vitamin D3 and Community Doctor with Home Management reduces systolic blood pressure and improves quality of life in community elderly with hypertension | Vitamin D3 and Community Doctor with Home Management reduces systolic blood pressure and improves quality of life in community elderly with hypertension | ChiCTR-INR-15007401 |
| Dietary Intake of Salmon and Bone Health | Intake of Dietary Vitamin D and K From Tailor-made Atlantic Salmon and Bone Health - A Randomized Intervention Study | NCT02615301 |
| Vitamin D Supplementation in Wheelchair Indoor Athletes | Effect of Vitamin D3 Supplementation on Exercise Performance in Wheelchair Athletes. | NCT02621320 |
| Effects of vitamin D supplementation on different aspects of health | Effects of vitamin D supplementation on different aspects of physical and mental health in adolscent girls | IRCT201509047117N7 |
| Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency | A Multi-Center, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate Efficacy and Safety of CTAP101 Capsules to Treat Secondary Hyperparathyroidism in Subjects With Stage 3 or 4 Chronic Kidney Disease and Vitamin D Insufficiency | NCT01651000 |
| Diet, Exercise and Vitamin D in Breast Cancer Recurrence | The Effect of the Combination of Low Glycemic Index Diet, Exercise and Vitamin D on Breast Cancer Recurrence: DEDiCa Study | NCT02786875 |
| Vitamin D Deficiency in children with disabilities: prevalence and determinants | Vitamin D Deficiency in children with disabilities: prevalence and determinants - Vit D deficiency in children with disabilities | NL-OMON41957 |
| Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency | A Multi-Center, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate Efficacy and Safety of CTAP101 Capsules to Treat Secondary Hyperparathyroidism in Subjects With Stage 3 or 4 Chronic Kidney Disease and Vitamin D Insufficiency | NCT01704079 |
| The Effect of Vitamin D and Calcium Supplement on Overall Body Bone Density and Implant Stability in Posterior Maxilla | The Effect of Vitamin D and Calcium Supplement on Overall Body Bone Density and Implant Stability in Posterior Maxilla: a Randomized Clinical Trial | NCT06673485 |
| Effects of treatment with vitamin D3 in Hashimoto's Thyroiditis with vitamin D deficiency on Thyroid function, antithyroid antibodies and metabolic markers | Effects of treatment with vitamin D3 in Hashimoto's Thyroiditis with vitamin D deficiency on Thyroid function, antithyroid antibodies and metabolic markers | IRCT2014120520216N1 |
| Effect of Vitamin D Supplementation as Adjuvant Therapy in Neonatal Jaundice in Combination With Phototherapy | Effect of Vitamin D Supplementation as Adjuvant Therapy in Neonatal Jaundice in Combination With Phototherapy | NCT06650293 |
| Effect of supplementation in treatment of Coronary Heart Disease | Effects of long-term vitamin D supplementation compared with the placebo on carotid intima media thickness (CIMT) and metabolic profiles among type 2 diabetes patients with coronary heart disease | IRCT201510315623N56 |
| Effect of 1 Year Vitamin D or D Plus B-vitamins on Bone Markers in Elderly People (KnoVIB) | Effect of 1 Year Vitamin D or D Plus B-vitamins on Bone Markers in Elderly People | NCT02586181 |
| Vitamin D and Exercise to Improve Physical Function in Older Adults | Vitamin D Supplementation and Exercise for Improving Physical Function in Overweight and Obese Older Adults With Low Vitamin D Levels | ACTRN12616000563460 |
| Vitamin D deficiency can make acne worse | Functional role of vitamin D in patients with acne | ISRCTN11007935 |
| Effect of vitamin D supplementation on serum 25-hydroxyvitamin D levels, inflammatory biomarkers and total antioxidant capacity in different types of vitamin D receptor polymorphisms in breast cancer women | Effect of vitamin D supplementation on serum 25-hydroxyvitamin D levels, inflammatory biomarkers and total antioxidant capacity in different types of vitamin D receptor polymorphisms in breast cancer women | IRCT2015090623924N1 |
| Effect of supplementation in treatment of women with polycystic ovary syndrome | Clinical trial of the effect of combined vitamin D and evening primrose oil supplementation on metabolic profiles and oxidative stress in women with polycystic ovary syndrome | IRCT201508025623N48 |
| Effect of Two Different Regimens of Vitamin D Supplementation on Serum Vitamin D Levels in Children | A study to compare the effect of two different regimens of vitamin D supplementation on serum vitamin D levels in children: a randomized controlled trial | CTRI/2015/08/006084 |
| The effect of Stand/Gait rehabilitation using BCAA and vitamin D high formulated nutritional supplement from the acute phase for inpatients with gait disturbance, Randomized, Open-Label, Comparative Study | The effect of Stand/Gait rehabilitation using BCAA and vitamin D high formulated nutritional supplement from the acute phase for inpatients with gait disturbance, Randomized, Open-Label, Comparative Study - The effect of Stand/Gait rehabilitation using BCAA and vitamin D high formulated nutritional supplement | JPRN-UMIN000018640 |
| Changes in vitamin D metabolism in HIV-infected patients. | Vitamin D, Immune Activation and Metabolic Changes in HIV-Infected Patients using Antiretroviral Therapy | RBR-92mmc7 |
| Comparing the effect of high dose vitamin D3 intake on interleukin-10, 17 and quality of life in Multiple Sclerosis patients | Comparing the effect of high dose vitamin D3 intake on interleukin-10, 17 and quality of life in Multiple Sclerosis patients | IRCT2015010910891N2 |
| A clinical trial to evaluate the need for routine Vitamin D supplementation till six months age in full term babies who are being exclusively breastfed. | Vitamin D Oral Supplementation Evaluation in full-term, exclusively breastfed infants -A randomized controlled study - VDOSE study | CTRI/2015/08/006132 |
| Pilot Study on Metabolic Effects of Fish Peptides and Vitamin D | Cardiometabolic Health Effects and Mechanisms of Action of Fish Nutrients | NCT02668159 |
| Effect of Escalating Oral Vitamin D Replacement on HOMA-IR in Vitamin D Deficient Type 2 Diabetics | Effect of Escalating Oral Vitamin D Replacement on HOMA-IR in Vitamin D Deficient Type 2 Diabetics | NCT04183257 |
| A dosing study to optimise vitamin D levels prior to oesophagectomy | A phase II open label dosing study to optimise vitamin D levels prior to oesophagectomy | ISRCTN66719785 |
| Vitamin D Intervention in Young Adults With Severe Childhood-onset Obesity | Vitamin D Intervention in Young Adults With Severe Childhood-onset Obesity | NCT02549326 |
| Effects of Vitamin D supplementation on childhood obesity | Effects of vitamin D supplementation on metabolic derangements among Obese Children: A Randomized Clinical Trial | SLCTR/2015/017 |
| Effect of supplementation in treatment of gestational diabetes | Clinical trial of the effect of combined vitamin D and evening primrose oil supplementation on metabolic profiles in gestational diabetes | IRCT201509115623N52 |
| Efficacy of Vitamin D Supplementation in Multiple Sclerosis (EVIDIMS) | Phase II Study of Efficacy of Vitamin D Supplementation in Multiple Sclerosis | NCT01440062 |
| Safety/Efficacy Study of CTAP101 in Chronic Kidney Disease Subjects With Secondary Hyperparathyroidism (SHPT) | A Randomized, Double Blind, Placebo-Controlled, Repeat Dose, Safety, Efficacy and Pharmacokinetic/Pharmacodynamic Study of CTAP101 Capsules in Subjects With Chronic Kidney Disease, Vitamin D Insufficiency and Secondary Hyperparathyroidism | NCT01219855 |
| Efficacy and safety of vitamin D supplementation in asthmatic children: a randomized controlled trial (ESDAC trial) | Efficacy and safety of vitamin D supplementation in asthmatic children who are vitamin D deficient: a randomized controlled trial (ESDAC trial) - ESDAC trial | CTRI/2015/09/006214 |
| The effects of vitamin D on endometriosis | Effects of vitamin D3 on Wnt/ß-catenin signaling pathway in the endometrium of women with endometriosis | IRCT2015081823678N1 |
| Metabolic Health of obese individuals with the help of vitamin D | The effect of vitamin D supplementation on the metabolomic profiles related to obesity in metabolically healthy vs. metabolically unhealthy obese individuals | IRCT2015061522762N1 |
| Effect of Vitamin D supplementation and low calorie diet on regulation of hormones secreted by adipose tissue and lipid profiles in obesity | Effect of Vitamin D supplementation and low calorie diet on serum Omentin ,Spexin , sICAM-1 , hs –CRP and lipid profiles in obese and overwight people | IRCT2015090223861N2 |
| African American Children, Glycemic Control, and Type 2 Diabetes | Vitamin D on Glycemic Control in African American Children With Type 2 Diabetes | NCT01325987 |
| The Impact of Vitamin D Supplementation in Hypertensive Vitamin D Deficient Patients. | The Relationship of Vitamin D and Irisin With Blood Pressure and Heart Rate Variability in Normotensive and Hypertensive Individuals: The Impact of Vitamin D Supplementation in Hypertensive Vitamin D Deficient Patients. | NCT06645041 |
| Quantitative assessment of the eldecalcitol effect on intestinal calcium absorption | Quantitative assessment of the eldecalcitol effect on intestinal calcium absorption - Quantitative assessment of the eldecalcitol (ELD) effect on intestinal calcium absorption and comparison between ELD group, alfacalcidol (ALF) group, natural vitamin D group and non-treatment group with Osteoporotic women patients.(CalQ study) | JPRN-UMIN000020267 |
| The efficacy of vitamin D administration in non-alchoholic fatty liver disease(NAFLD) | Evaluation of vitamin D administration in non-alchoholic fatty liver disease(NAFLD) | IRCT2015102624725N1 |
| Effects of Supplementation with vitamin D on anti aging protein klotho | Effects of Supplementation with vitamin D on anti aging protein klotho in old people | IRCT201511152709N36 |
| Effects of Supplementation of Vitamin D in Patients With Crohn's Disease | The Impact of Serum Vitamin D and Calcium Levels on the Body Composition, Bone Mineral Density, Muscle Strength, Exercise Tolerance, Fatigue and Inflammatory Activity in Patients With Crohn's Disease: a Randomized Controlled Trial | NCT02704624 |
| Effect of vitamin D on heart failure | Effects of vitamin D compounds in 3 months on heart failure patients | IRCT2014101619258N1 |
| Effectiveness of vitamin D supplementation on severity of chronic liver disease | Effectiveness of vitamin D supplementation on severity of cirrhosis based on CHILD and MELD scores in patients with decompensate cirrhosis | IRCT2016020326342N1 |
| Effect of Vitamin D supplementation on vascular functions in type 2 diabetic patients with vitamin D deficiency. | Effect of Vitamin D supplementation on vascular functions in type 2 diabetic patients with vitamin D deficiency. | CTRI/2016/03/006698 |
| Vitamin D Dynamics in Women | Vitamin D Dynamics in Pregnant Women and Non-Pregnant Women of Reproductive Age | NCT02705287 |
| Prospective Evaluation of Diagnosis of Vitamin D Deficiency in Critical Care | Prospective Evaluation of Diagnosis of Vitamin D Deficiency in Critical Care - VITdAL-ICU DIAGNOSIS | DRKS00009216 |
| Efficacy and Safety of Blue Light (453 nm) Treatment for Mild Psoriasis Vulgaris Over Three Months Compared to Vitamin D. | Monocenter, Randomized, Blinded, Intraindividual Study Evaluating Efficacy and Safety of Blue Light (453 nm) Treatment for Mild Psoriasis Vulgaris Over Three Months Compared to Vitamin D | NCT02735187 |
| Effect of magnesium and vitamin D supplementation in the treatment of ADHD | Effect of supplementation with vitamin D and magnesium compared with placebo on cognitive function and behavior in children with attention deficit hyperactivity disorder | IRCT2016030326886N1 |
| Vitamin D status and lung function in children with asthma | Association between vitamin D levels and pulmonary function parameters in children with asthma | ISRCTN10630925 |
| The effect of UVB irradiation compared with oral vitamin D supplementation on well-being in psycho-geriatric nursing home residents in the Netherlands | The effect of UVB irradiation compared with oral vitamin D supplementation on well-being in psycho-geriatric nursing home residents in the Netherlands - UVB and well-being in nursing home residents | NL-OMON43379 |
| Glucose metabolism impact of a single injection of vitamin D3 on gestational diabetes with vitamin D deficiency | Glucose metabolism impact of a single injection of vitamin D3 on gestational diabetes with vitamin D | ChiCTR-TRC-14005235 |
| Sustained Effect of Urticaria Remission With Relatively High Dose Vitamin D Supplementation After Omalizumab Discontinuation | Sustained Effect of Urticaria Remission With Relatively High Dose Vitamin D Supplementation After Omalizumab Discontinuation | NCT02742805 |
| Effect of supplementation in treatment of women with polycystic ovary syndrome | Clinical trial of the effect of vitamin D supplementation compared with the placebo on metabolic profiles in women with polycystic ovary syndrome | IRCT201604145623N74 |
| T Cell Phenotypes in Amyotropic Lateral Sclerosis (ALS), Influence of Vitamin D | T Cell Phenotypes in ALS, Influence of Vitamin D | NCT02756104 |
| The anti-inflammation effect of vitamin D in patients with type 2 diabetes | The anti-inflammation effect of vitamin D in patients with type 2 diabetes | ChiCTR-IPR-16008304 |
| Effect of vitamin D supplementation in treatment of women with polycystic ovary syndrome | Clinical trial of the effect of vitamin D supplementation compared with the placebo on biomarkers of inflammation and oxidative stress in women with polycystic ovary syndrome | IRCT201604145623N75 |
| The Effect of Vitamin D Repletion on Kidney Stone Risk | The Effect of Vitamin D Repletion on Urinary Calcium Excretion in Kidney Stone Formers With Vitamin D Deficiency and High Urinary Calcium | NCT02752841 |
| Clinical and laboratory Efects of vitamin D supplementation in adolescent with polycystic ovarian syndrome and vitamin D deficiency | Clinical and laboratory Efects of vitamin D supplementation in adolescent with polycystic ovarian syndrome and vitamin D deficiency | IRCT2016021125732N2 |
| The effect of vitamin D supplement on the score and quality of sleep in 20 to 50 year-old people with sleep disorders compared with control group | The effect of vitamin D supplement on the score and quality of sleep in 20 to 50 year-old people with sleep disorders compared with control group | IRCT2015122725723N1 |
| The effect of cholecalciferol supplementation on angiogenic factors in breast cancer survivors co-administered with tamoxifen | The effect of cholecalciferol supplementation on serum levels of vascular endothelial growth factor-A and angiopoietin-2 in breast cancer patients co-administered with tamoxifen: a randomized controlled clinical trial | IRCT2015082111335N6 |
| Role of Vitamin D supplementation in the treatment response for parthenium dermatitis | Effect of vitamin D supplementation on treatment response and IL-10 level in vitamin D deficient parthenium dermatitis patients â?? a randomized double blind placebo controlled trial | CTRI/2016/02/006626 |
| A study to compare between vitamin D syrup and Vitamin D injection in patients with tropical calcific pancreatitis | Oral Versus Parenteral Vitamin D in patients with Tropical Calcific Pancreatitis:A prospective case control study | CTRI/2016/02/006583 |
| The effect of vitamin D supplement consumption compared with the placebo on premenstrual syndrome in young girls | The effect of vitamin D supplement consumption compared with the placebo on premenstrual syndrome in young girls | IRCT201510092365N10 |
| Effect of supplementation in treatment of women with cervical intraepithelial neoplasia 2 and 3 | Clinical trial of the effect of vitamin D supplementation compared with the placebo on recurrence and metabolic profiles in women with cervical intraepithelial neoplasia 2 and 3 | IRCT201601045623N65 |
| Effect of multimicronutrient supplementation on vitamin D status in women of childbearing age | Effect of multimicronutrient supplementation on vitamin D status in women of childbearing age - BTS917/15 | DRKS00009770 |
| The Effect of Vitamin D supplementation on the lipid profile of women with PCOS attending the gynaecological OPD in a tertiary care teaching hospital- a Randomised Placebo controlled trial | The Effect of Vitamin D supplementation on the lipid profile of women with PCOS attending the gynaecological OPD in a tertiary care teaching hospital- a Randomised Placebo controlled trial - NIL | CTRI/2024/10/075349 |
| Effect of vitamin D supplementation on controlling blood sugar in patients with gestational diabetes | A clinical trial to investigate the effect of vitamin D supplementation on glucose status in mothers with gestational diabetes | IRCT2015122725725N1 |
| Correction of Vitamin D Deficiency and Its Effect on Ovulation Induction in Women With PCOS (VIDEO): A Feasibility RCT | Correction of Vitamin D Deficiency and Its Effect on Ovulation Induction in Women With PCOS (VIDEO): A Feasibility RCT | NCT02656121 |
| Effects of Vitamin D and Calcium Supplementation on Health and Well-being of Vitamin D Deficient UAE Citizens | Effects of Vitamin D and Calcium Supplementation on Health of UAE Citizens | NCT02662491 |
| Impact of Maternal Body Weight on Vitamin D Status During Pregnancy | Investigation of the Impact of Maternal Body Weight on Vitamin D Status During Pregnancy: a Randomised Supplementation Study | NCT02713009 |
| Vitamin D Supplementations and Postoperative Pain | Effect of Vitamin D Supplementation on Postoperative Pain and Sedation-agitation | NCT02664857 |
| Evaluation of Calcium and Vitamin D in Neonates | Clinical Trial on the Evaluation of Calcium and Vitamin D in the Cord Serum of Neonates, Whose Mothers Were Under Vitamin D Treatment During Their Pregnancy | IRCT2015041321736N1 |
| Patients with diabetes complications were treated by Vitamin D | The effect of Vitamin D on patients with diabetes complications and the changes of new cytokines in the serum of patients with diabetes complications | ChiCTR-IOR-16007830 |
| Effect of Oral Vitamin D3 on Chronic Rhinosinusitis Treatment in Adults With Lower Vitamin D Levels | Influence of Oral Vitamin D3 on Wound Healing After Endonasal Endoscopic Sinus Surgery for Chronic Rhinosinusitis With Nasal Polyposis and Lower Vitamin D Levels | NCT02668861 |
| Efficacy and safety of denosmab in patients with glucocorticoid-induced osteoporosis refractory to combination therapy with bisphosphonate and vitamin D | Efficacy and safety of denosmab in patients with glucocorticoid-induced osteoporosis refractory to combination therapy with bisphosphonate and vitamin D - Denosmab in treatment-refractory glucocorticoid-induced osteoporosis | JPRN-UMIN000020711 |
| How Much Vitamin D is Required to be Protective Against Deficiency During the Winter Months? | How Much Vitamin D is Required to be Protective Against Deficiency During the Winter Months? - An Investigation in Veterans Living at Ste-Anne's Hospital | NCT01437696 |
| Cross sectional study to investigate the 25-hydroxyvitamin D level and potentially influencing factors of pregnant women and their newborns in Germany | Cross sectional study to investigate the 25-hydroxyvitamin D level and potentially influencing factors of pregnant women and their newborns in Germany - Vitamin D in pregnancy | DRKS00003245 |
| Is the efficacy of nutritional vitamin D (cholecalciferol) comparable to active vitamin D (calcitriol) as maintenance therapy in dialysis dependent chronic kidney disease patients? | Is the efficacy of nutritional vitamin D (cholecalciferol) comparable to active vitamin D (calcitriol) as maintenance therapy in dialysis dependent chronic kidney disease patients? | ACTRN12616000108415 |
| A study of vitamin D supplementation in breast fed infant with vitamin D defficiency | A study of vitamin D supplementation in breast fed infant with vitamin D defficiency - A study of vitamin D supplementation in breast fed infant | JPRN-jRCT1091220243 |
| The effect of vitamin D3 administration in endometrium of patients with recurrent implantion failure | The effect of vitamin D3 administration on gene expression and protein levels of progesterone receptors, VDR and and endometrial decidualization factors(IGFBP1, PRL, HOXA10) in endometrium of patients with recurrent implantion failure | IRCT20220528055006N1 |
| Vitamin D Supplementation in Postmenopausal Women With Osteoporosis: Proposal of a Therapeutic Regimen in Practice | | NCT02518763 |
| The effect of fortified biscuit with vitamin D on deficient children | the effect of fortified biscuit with vitamin D, versus oral and injectable methods for treatment of children with vitamin D deficiency aged 30 to 72 month | IRCT201504296705N3 |
| Development of a broader understanding of Vitamin D levels in patients undergoing sleeve gastrectomy to inform guidelines for post-surgery supplementation | Effects of vitamin D supplementation on the vitamin D status of morbidly obese patients post gastric sleeve surgery. | ACTRN12615000579594 |
| Effect of Vitamin D Supplementation on the Metabolic Control and Body Composition of Type 2 Diabetes Subjects in Ajman (UAE) | Effect of Vitamin D Supplementation on the Metabolic Control and Body Composition of Type 2 Diabetes Subjects in Ajman (UAE) | NCT02101151 |
| Clinical Relationship Between Vitamin D-mediated Th17 and Treg Cells and Parkinson's Disease | Clinical Relationship Between Vitamin D-mediated Th17 and Treg Cells and Parkinson's Disease | NCT06539260 |
| Evaluation of clinical and methodological aspects of vitamin D screening in pharmacies in Salzburg, Austria | Evaluation of clinical and methodological aspects of vitamin D screening in pharmacies in Salzburg, Austria | DRKS00034147 |
| Effect of Pulmonary rehabilitation & vitamin D on Asthma | Combined effect of vitamin D supplementation & Pulmonary Rehabilitation on asthma patients - NIL | CTRI/2024/08/072193 |
| Relationship Between Maternal Awareness About Vitamin D for Under- Five Years Children and Their Health Status Outcomes | Relationship Between Maternal Awareness About Vitamin D for Under- Five Years Children and Their Health Status Outcomes: Cross Sectional Study | NCT06562426 |
| Evaluation of the Effects of vitamin D3 supplementation on Irritable bowel syndrome symptoms. | Evaluation of The Effects of vitamin D3 supplementation on Irritable bowel syndrome symptoms | IRCT201402234010N11 |
| The Effect of Vitamin D Supplements on Vitamin D Status, Cardiometabolic Health and Immune Defense in Danish Children | Food-based Solutions for Optimal Vitamin D Nutrition and Health Through the Life Cycle (ODIN) Junior | NCT02145195 |
| Dietary Requirement for Vitamin D in Adolescents Aged 14-18 Years | A Dose-response, Double-blind Randomised Placebo-controlled Trial to Estimate the Dietary Requirement for Vitamin D in Caucasian Male and Female Adolescents Aged 14-18 Years (The ODIN Study) | NCT02150122 |
| Vitamin D Supplementation in Vitamin D Deficient Obese Children During Weight-loss Program | Long-term Effects of Vitamin D Supplementation in Vitamin D Deficient Obese Children During Integrated Weight-loss Program - a Double Blind Placebo Controlled Study | NCT02828228 |
| Getting Vitamin D Dosing Right | Determining the Effects of Race, Skin Colour and Genotype on the Response to Vitamin D Therapy | NCT02474446 |
| Efiicacy of vitamin D on chronic lung disease | Efiicacy of vitamin D supplementation on pulmonary function tests of chronic obstructive pulmonary disease | IRCT2015012720828N1 |
| Effects of vitamin D supplementation on non-alcoholic fatty liver disease (NAFLD): A randomized, double-blinded, placebo-controlled trial | Effects of vitamin D on non-alcoholic fatty liver disease (NAFLD): A randomized, double-blinded, placebo-controlled trial | ChiCTR-IOR-16008602 |
| The effect of Vitamin D Supplement on Insulin Resistance and Prevention of Diabetes Mellitus Type 2 in Patients with Pre-diabetes | The effect of Vitamin D Supplement in comparison whit placebo on insulin resistance and prevention of Diabetes Mellitus Type 2 in Patients with Pre-diabetes | IRCT2013050413223N1 |
| Vitamin D Probiotics Fortification Among Pregnant Women | Vitamin D Probiotics Fortification Effect on Urinary Tract and Pregnancy Outcomes Among Pregnant Women | PACTR202408762065192 |
| The effect of Calcifediol (Hy.D 25 SD/S) and Vitamin D3 on muscle strength in a frail elderly population: A randomized, double-blind, placebo-controlled trial. | The effect of Calcifediol (Hy.D 25 SD/S) and Vitamin D3 on muscle strength in a frail elderly population: A randomized, double-blind, placebo-controlled trial. - D-Fit | NL-OMON41964 |
| Effectiveness and Safety of Two Vitamin D3 Supplementation Regimens in Adults with Early-stage COVID-19 | Effectiveness and Safety of Two Vitamin D3 Supplementation Regimens in Adults with Early-stage COVID-19 | NCT06585995 |
| Comparison of supplementation effect with two different doses on level of Vitamin D in children aged 2-12 years | Comparison of supplementation effect with two different doses on serum level of Vitamin D in healthy children aged 2-12 years | IRCT20240604062011N1 |
| A Randomized, Open-Label, Phase 3 Study to Assess the Efficacy and Safety of KRN23 Versus Oral Phosphate and Active Vitamin D Treatment in Pediatric Patients with X-linked Hypophosphatemia (XLH) | A Randomized, Open-Label, Phase 3 Study to Assess the Efficacy and Safety of KRN23 Versus Oral Phosphate and Active Vitamin D Treatment in Pediatric Patients with X-linked Hypophosphatemia (XLH) | EUCTR2016-000600-29-DK |
| Vitamin D in Childhood Asthma | Prospective controlled trial to evaluate the effect of vitamin D supplementation on asthma control in children | CTRI/2015/06/005844 |
| Evaluation of Clinical Efficacy of Xiaoying Decoction Combined with Vitamin D in the Intervention of Hashimoto's Thyroiditis | Evaluation of Clinical Efficacy of Xiaoying Decoction Combined with Vitamin D in the Intervention of Hashimoto's Thyroiditis | ITMCTR2024000332 |
| Vitamin D Plasma Level and Its Role in Headache | The Role of Vitamin D Plasma Levels in the Development of Headache | NCT02467127 |
| The 'Hidden' Biological Impact of Vitamin D Deficiency: a Biomarker Study; Part 2 | The 'Hidden' Biological Impact of Vitamin D Deficiency: a Biomarker Study | NCT02451787 |
| Efficacy of a Once Daily Calcium and Vitamin D Fortified Food Product to Improve Bone Microarchitecture | Efficacy of a Once Daily Calcium and Vitamin D Fortified Food Product to Improve Bone Microarchitecture in Response to Army Basic Combat Training | NCT02375503 |
| Vitamin D supplementation compared to placebo in people presenting with their first episode of psychosis neuroprotection design | A randomised, double blind, placebo controlled parallel group trial of vitamin D supplementation compared to placebo in people presenting with their First Episode of psychosis Neuroprotection Design | ISRCTN12424842 |
| The Effect Of Vitamin D Supplementation On Glycemic Control In Diabetic Patients With Vitamin D Deficiency | Evaluation Of the Effectiveness Of Vitamin D Supplementation On Glycemic Control In Type 2 Diabetic Patients With Vitamin D Deficiency | IRCT2015012520788N1 |
| Fortified Cheese and Yogurt Products and Vitamin D Status in Young Children? Phase 2 | Do Vitamin D Fortified Cheese and Yogurt Products Support Vitamin D Status and Functional Outcomes in Young Children? Phase 2 | NCT02387892 |
| The Effect of Vitamin D Administration to Premature Infants on Vitamin D Status and Respiratory Morbidity | The Effect of Vitamin D Administration to Premature Infants on Vitamin D Status and Respiratory Morbidity During the First Year of Life | NCT02404623 |
| Vascular and Metabolic Effects of Vitamin D Supplementation Associated With Lifestyle Management in Obese Adolescents | Vascular and Metabolic Effects of Vitamin D Supplementation Associated With Lifestyle Management in Obese Adolescents: Prospective, Randomized, Controlled Trial | NCT02400151 |
| The effect of Vitamin D3 supplementation on blood pressure, bone parameters, lipid profile, liver enzymes, glycemic and hematopoietic indices in pregnant women with Vitamin D deficiency | The effect of Vitamin D supplementation on blood pressure, bone parameters, lipid profile, liver enzymes, glycemic and hematopoietic indices in pregnant women with vitamin D deficiency | IRCT2014091619162N5 |
| Effect of vitamin D on gestational diabetes. | Comparison of vitamin D supplements effect on gestational diabetes in pregnant women with and without vitamin D deficiency. | IRCT2015022714275N2 |
| Effect of Vitamin D supplementation on osteodystrophy in patients with chronic liver disease | Chronic liver disease: Status of micronutrients with special reference to vitamin D and its supplementation on hepatic osteodystrophy - A randomized controlled trial. - VITHOD | CTRI/2015/04/005674 |
| The efficacy and safety of vitamin D supplementation for the treatment of NAFLD/NASH | The efficacy and safety of vitamin D supplementation for the treatment of NAFLD/NASH - The efficacy and safety of vitamin D supplementation for the treatment of NAFLD/NASH | JPRN-UMIN000017150 |
| Calcium and High-dose Vitamin D Supplementation on Bone Mineral Density Among HIV-infected Children and Adolescents | Effect of Calcium and High-dose Vitamin D Supplementation on Bone Mineral Density Among Perinatally HIV-infected Children and Adolescents | NCT02426840 |
| Comparison of two different vitamin D doses for bone strength protection in nephrotic syndrome | Comparison of two vitamin D dosing regimens for osteoprotection in children with new-onset and infrequently relapsing nephrotic syndrome treated with steroids : a randomized trial. | CTRI/2015/04/005721 |
| A clinical trial to study the effects of Vitamin D supplementation on insulin resistance in obese Indian subjects | Effect of Vitamin D supplementation on pancreatic β cell functions in obese Indian subjects: A randomized controlled trial. | CTRI/2015/04/005727 |
| Effectiveness of Vitamin D in Primary Dysmenorrhoea | Vitamin D in the Treatment of Primary Dysmenorrhoea: A Prospective Randomised Controlled Trial | NCT02441530 |
| The effect of vitamin D-fortified milk on diabetes control | Determination of the effect of vitamin D-fortified milk on serum vitamin D, glycemic control, lipid profile, anthropometric measurements, and blood pressure in people with type 2 diabetes | IRCT2015021721120N1 |
| Preventive and Reversional Effect of Vitamin D on Parenteral Nutrition Associated Liver Disease | Preventive and Reversional Effect of Vitamin D on Parenteral Nutrition Associated Liver Disease: Clinical Observation and Experimental Study | NCT02452177 |
| The effect of preoperative vitamin D administration on postoperative serum levels of Interleukin 1, Interleukin 6 and Tumor Necrosis Factor-alpha in patients undergoing elective CABG | The effect of preoperative 1, 25 (OH)2 vitamin D administration on postoperative serum levels of Interleukin 1, Interleukin 6 and Tumor Necrosis Factor-alpha in patients undergoing elective CABG | IRCT201502022804N7 |
| EDCR Study - Etanercept Diamyd Combination Regimen -Open Trial to Evaluate Safety in Children With Type 1 Diabetes | Open Label Trial to Evaluate the Tolerability of a Combination Therapy Consisting of GAD-alum (Diamyd®), Etanercept and Vitamin D in Children and Adolescents Newly Diagnosed With Type 1 Diabetes | NCT02464033 |
| A clinical trial to study the effects of vitamin D and vitamin D plus alpha lipoic acid on cardiovascular complications in type 2 diabetes mellitus patients. | Assessment of biochemical markers of cardiovascular complications following vitamin D and vitamin D plus alpha lipoic acid supplementation in type 2 diabetes patients - NIL | CTRI/2015/05/005804 |
| Evaluation of the effects of vitamin D on left ventricular function and function class of patients with heart failure | Evaluation of the effects of vitamin D on left ventricular function and function class of patients with heart failure | IRCT138706121181N1 |
| Vitamin D Status Fluctuations Over One Academic Year in Students | Annual Fluctuation of Vitamin D Nutritional Status in Students and Its Association with the Occurrence of Inflammation, Depressive States, and Cognitive Abilities | NCT06677411 |
| Infants of Vitamin D deficient mothers-trial comparing Pentavite and Vitamin D3 supplement-effect on Vitamin D level at 6 weeks | infants of vitamin d deficient mothers-trial comparing 2 supplement options with vitamin D levels repeated at 6 weeks | ACTRN12615000642583 |
| Role of host factors in predicting antiviral response in chronic hepatitis C | Role of Serum Vitamin D levels and Interleukin-28Brs12979860 C/T Polymorphism in Predicting Antiviral Response in Chronic Hepatitis C | CTRI/2015/07/005992 |
| Vitamin-D Supplementation: Impact on Severe Pneumonia Among Under-five Children | Vitamin D Supplementation: Impact on Severe Pneumonia Among Under-five Children | NCT02185196 |
| The Vitamin D in Pediatric Crohn's Disease | Randomized Controlled Trial of High Dose Vitamin D in Children With Newly Diagnosed Crohn's Disease for the Prevention of Relapses | NCT02186275 |
| Effect of supplementation in treatment of gestational diabetes | Effect of vitamin D plus calcium co-supplementation on pregnancy outcomes in gestational diabetes | IRCT201407115623N23 |
| Impact of Vitamin D on 25-hydroxyvitamin D Levels and Physical Function | The Impact of Supplemental Vitamin D on Serum 25-hydroxyvitamin D Levels and Short Term Indicators of Physical Function | NCT02293187 |
| Supplementation of Vitamin D in Patients With Type 2 Diabetes and Hypertension | Supplementation of Vitamin D in Patients With Type 2 Diabetes and Hypertension: Randomized Clinical Trial | NCT02204527 |
| Marwo-D Research -Need for Vitamin D in Different Population Groups | Food-based Solutions for Optimal Vitamin D Nutrition and Health Through the Life Cycle (ODIN) | NCT02212223 |
| Evaluation of the High Dose Vitamin D3 Supplementation Effect and Influence of Polymorphism VDR Gene on Oxidative Stress and Inflammatory Process in Elderly | EVALUATION OF THE HIGH DOSE VITAMIN D3 SUPPLEMENTATION EFFECT AND INFLUENCE OF POLYMORPHISM VDR GENE ON OXIDATIVE STRESS AND INFLAMMATORY PROCESS IN ELDERLY | NCT02222649 |
| Effect of supplementation in treatment of patients with gestational diabetes | Clinical trial of the effect of combined omega-3 fatty acids and vitamin D supplementation compared with the placebo on metabolic profiles in patients with gestational diabetes | IRCT201605135623N78 |
| Changes of resistance-associated variants in HCV NS5A region post vitamin D supplementation for patients with chronic hepatitis C | Changes of resistance-associated variants in HCV NS5A region post vitamin D supplementation for patients with chronic hepatitis C - Efficacy of vitamin D supplementation for resistance-associated variants in NS5A region | JPRN-UMIN000018454 |
| Effects of Vitamin D3 Supplementation on Cognitive Function in Community Dwelling Older Adults | D-activating Decline- Exploring the Effects of Vitamin D3 Supplementation on Cognitive Function in Community Dwelling Healthy Older Adults- A Pilot Study | NCT02804841 |
| PREVARID - PREVention of Acute Respiratory Infections with Vitamin D | Does vitamin D supplementation prevent acute respiratory infection health care visits among children under 2 years old? A randomised controlled trial | ACTRN12616000659404 |
| Effecct in recovery of inflamation and respiratory function in chronic obstructive pulmonary disease. | Effects of high dose vitamin D? ?as adjunctive therapy on ?clinical outcomes and prognostic biomarkers in patients with Acute ?Exacerbation of Chronic Obstructive ?? ?Pulmonary Disease. ? | IRCT2016031425726N4 |
| Prevention of Type 2 Diabetes With Vitamin D | Prevention of Type 2 Diabetes in Women With Prediabetes Using Vitamin D Supplementation and Lifestyle Intervention in North India (PREVENT-WIN Study) | NCT02513875 |
| Studing the Effect of Vitamin D Deficiency Treatment on Insulin Resistance | Studing the Effect of Vitamin D Deficiency Treatment on Insulin Resistance (Leptin to Adiponectin ratio) in Patients with Diabetes Mellitus | IRCT2015070623083N1 |
| Prevention of Type 2 Diabetes With Vitamin D Supplementation | Prevention of Type 2 Diabetes in Women With Prediabetes Using Vitamin D Supplementation and Lifestyle Intervention in North India (PREVENT-WIN Study) | NCT02513888 |
| Associations of Vitamin D Deficiency and Vitamin D Receptor Polymorphisms With the Risk of Primary Open-angle Glaucoma | Associations of Vitamin D Deficiency and Vitamin D Receptor Polymorphisms With the Risk of Primary Open-angle Glaucoma | NCT02539745 |
| Follow-up Study With Clinical Vitamin D Supplementation Trial on Patients With Depression (DepFuD) | Follow-up Study With Randomized Clinical Vitamin D Supplementation Trial on Patients With Depression (DepFuD) | NCT02521012 |
| Vitamin D Supplementation Can Improve Heart Function in Idiopathic Cardiomyopathy | | NCT02517814 |
| vitamin D and non-alcoholic fatty liver disease | The effect of a single dose of vitamin D3 injection on serum 25 hydroxy vitamin D and adiponectin and liver function in women with non-alcoholic fatty liver disease | IRCT201503163320N10 |
| Quality of life improvement with vitamin D supplementation in allergic rhinitis patients. | Effect of vitamin D supplementation on quality of life of patients with perennial Allergic Rhinitis: A Randomized Controlled Trial. - NIL | CTRI/2024/09/073462 |
| Effects of physical exercise and vitamin D supplementation on muscle mass of hemodialysis patients | Effects of physical training and vitamin D supplementation on muscle mass of hemodialysis patients | RBR-8ykyws |
| Oral or Intra Muscular Vitamin D2 Vs Oral or Intra Muscular Vitamin D3 in Treatment of Vitamin D Deficiency | Oral or Intra Muscular Vitamin D2 Vs Oral or Intra Muscular Vitamin D3 in Treatment of Vitamin D Deficiency. | NCT06618365 |
| Clinical study of breastfeeding, sleep duration, and vitamin D intervention on obesity in infants and young children | Research on Key Technologies and System Construction for Prevention and Treatment of Embryogenic Diseases | ChiCTR2400089532 |
| Vitamin D Supplementation in Breast Cancer Patients | The Effect of Vitamin D Supplementation in Breast Cancer Patients Receiving Taxane-based Chemotherapy | NCT06596122 |
| Acute Vitamin D Supplementation on Testosterone in Females | Effects of Acute Vitamin D Supplementation on Testosterone in Young, Healthy Females: A Pilot Study | NCT06610968 |
| Clinical Assessment of Adjunctive Omega-3 Versus Vitamin D Daily Supplements on Active Periodontal Therapy With Stage II Grade B Periodontitis Patients | Clinical Assessment of Adjunctive Omega-3 Versus Vitamin D Daily Supplements on Active Periodontal Therapy With Stage II Grade B Periodontitis Patients: A Randomized Controlled Clinical Trial. | NCT06654063 |
| To compare the rate of maxillary canine retraction with i-PRF and vitamin D in orthdontic patient - RANDOMIZED CNTROLLED TRIAL | Comparative Evaluation of Injectable Vitamin D VS. Injectable Platelet-Rich Fibrin on the Rate of Maxillary Canine Retraction: A Randomized Controlled Trial - NIL | CTRI/2024/09/074288 |
| Effect of Vitamin D supplementation in patients with Dry Eye Disease. | Effect of Vitamin D supplementation on ocular surface and tear film parameters in patients with Dry Eye Disease. - NIL | CTRI/2024/09/074370 |
| The effect of vitamin D supplement in subjects with type 2 diabetes mellitus | The effect of vitamin D supplement in glycemic control and lipid profile in type 2 diabetes mellitus (DM): an intervention study | ACTRN12614000594628 |
| A Single High-dose Oral Supplement of Vitamin D in Young Chinese | | NCT02158143 |
| Vitamin D Status in Relation to Insulin Sensitivity Among Saudi Women With Polycystic Ovary Syndrome | Vitamin D Status in Relation to Insulin Sensitivity, Resistance and Inflammatory Response Among Saudi Women With Polycystic Ovary Syndrome | NCT02164552 |
| Vitamin D in Patients With Stage I-III Colon Cancer or Resectable Colon Cancer Liver Metastases | Study to Identify Transcriptional Targets of Vitamin D in Patients With Stage I-III Colon Cancer or Resectable Colon Cancer Liver Metastases Receiving Preoperative Vitamin D Supplementation. | NCT02172651 |
| High-intensity Interval Training and Vitamin D Effects on Bone Metabolism Among Women Diagnosed With Osteoporosis | Concurrent Effects of High-intensity Interval Training and Vitamin D Supplementation on Bone Metabolism Among Women Diagnosed With Osteoporosis | NCT06624657 |
| Correction of Vitamin D Levels and Its Effect on Insulin Resistance and Weight Gain in Obese Youth | Normalization of Vitamin D Levels and Its Effect on Glucose Homeostasis in Obese Youth | NCT02168660 |
| Evaluation of a Transdermal Vitamin D3 Delivery System, D3forME | Evaluation of a Transdermal Vitamin D3 Delivery System, D3forME | NCT02174718 |
| Effects of Ultraviolet B Exposure Using a Ultraviolet Skin Care Device on Vitamin D Production and Immune Response in Healthy Adults | An Investigator-led Clinical Trial to Study the Effects of Ultraviolet Exposure Using a Ultraviolet B Skin Care Device on Vitamin D Production and Immune Response in Healthy Adults | NCT06625918 |
| Effectiveness of Combined Treatment of PDL Laser and Vitamin D Injection Versus PDL Laser | Efficacy of Combined Treatment of PDL Laser And Vitamin D Injection Compared to PDL Laser and Normal Saline Injection on Wart Lesions around Nails in Afzalipour Hospital in 1403 | IRCT20240812062736N1 |
| Evaluation of Calcium and Vitamin D Supplementation During Marine Corps Training | Evaluation of Calcium and Vitamin D Supplementation for Optimizing Bone Health During Marine Corps Recruit Training | NCT02636348 |
| Association of serum Vitamin D level (level of Vitamin D in blood) and implant osseointegration (fusion of implant to surrounding bone) | Association of serum Vitamin D level and implant osseointegration - a prospective study - NIL | CTRI/2024/10/074941 |
| Adjuvant Therapeutic Effect of Vitamin D on Hashimoto's Thyroiditis | Adjuvant Therapeutic Effect of Vitamin D on Hashimoto's Thyroiditis | NCT05871957 |
| Health benefits of a vitamin D supplementation program in alcoholism. | Health benefits of a vitamin D supplementation program in alcoholism. - Vitamin D trial: VIDIO. | NL-OMON39028 |
| """Evaluation of the Effect of Vitamin D Supplementation on the Recovery of Children Suffering from Coronavirus Disease 2019""" | Evaluation of the Effect of Vitamin D Supplementation on the Recovery of Hospitalization Children Suffering from Coronavirus Disease 2019 in Hospital | IRCT20090909002438N4 |
| Vitamin D Supplementation and PTH Response Among Malaysian Adults | Vitamin D Supplementation, Parathyroid Hormone (PTH) and Plasma Vitamin D Response Among Malaysian Female Adults: Double Blinded, Randomised Clinical Trial of Efficacy | NCT05281107 |
| The efficacy of the combination of allergen vaccination and Vitamin D3 in the reduction of allergen-specific nasal responses. A placebo controlled trial. | The efficacy of the combination of allergen vaccination and Vitamin D3 in the reduction of allergen-specific nasal responses. A placebo controlled trial. | NL-OMON28331 |
| Prostate Cancer Vitamin D Clinical Trial | A phase II randomised controlled trial of vitamin D in localised prostate cancer cases with intermediate risk of progression (ProsD). | ACTRN12616001707459 |
| Vitamin D as an add-on Therapy With Pegylated Interferon and Ribavirin for Chronic Hepatitis c | Vitamin D in Addition to Pegylated Interferon and Ribavirin Compared to Pegylated Interferon and Ribavirin Alone in the Treatment of Chronic Hepatitis C Genotype 4. | NCT01655966 |
| Fracture Healing Assessed by HR-pQCT After Administration of Calcium and Vitamin D | Assessment of Fracture Healing by High-resolution Peripheral Quantitative Computed Tomography (HR-pQCT) and Bone Strength Analysis in Standard Care and After Immediate Administration of Calcium and Vitamin D Supplementation | NCT02889237 |
| effect of Supplementation in combination with diet therapy in treatment of polycystic ovary syndrome | The effect of vitamin D supplementation on anthropometric indices and androgen hormones in women with polycystic ovary syndrome treated with low calorie diet | IRCT2016062710826N19 |
| Study on Clinical Value of Vitamin D in Recurrent Spontaneous Abortion | The Role and Mechanism of Vitamin D in Recurrent Spontaneous Abortion Based on Maternal Fetal Interface Immune Tolerance | NCT06002035 |
| The Effectiveness of Vitamin D Supplementation in Patients With End-stage Knee Osteoarthritis | Double-blinded Randomized Controlled Trial Investigating the Effectiveness of Vitamin D Supplementation in Patients With End-stage Knee Osteoarthritis | NCT05981534 |
| Vitamin D profile and athletic performance | Vitamin D profile and its impact on sports performance in athletes | CTRI/2022/07/043771 |
| Effect of Astaxanthin, Natural plant-based oil, Vitamin E and Vitamin D3 on oxidative stress in overweight and obese women | Effect of Astaxanthin, Natural plant-based oil, Vitamin E and Vitamin D3 on oxidative stress in overweight and obese women: A randomized double blind, placebo-controlled clinical trial | TCTR20210220001 |
| effect of vitamin D and vitamin C in patients with acute respiratory failure | The effect of simultaneous supplementation of oral vitamin D and intravenous vitamin C on inflammatory indices, oxidative stress and clinical outcomes in patients with acute respiratory failure admitted to the intensive care unit | IRCT20090822002365N29 |
| Pharmacological Modulations of Allergen-Specific Immunotherapy | The Effect of Glucocorticosteroid and Vitamin D3 Administration and Montelukast Treatment on Early Clinical and Immunological Effect of Allergen-Specific Immunotherapy in Asthmatic Children, Double-Blind, Placebo-Controlled Study | NCT00504946 |
| Association the combined and separate effects of the DASH diet and vitamin D supplementation on inflammatory markers and improvement of heart condition in patients with heart failure | Association the combined and separate effects of the DASH diet and vitamin D supplementation on inflammatory markers and improvement of heart condition in patients with heart failure | IRCT20171205037760N2 |
| Evaluation of serum Vitamin D levels in patients with Polycystic kidney disease. | Serum vitamin D levels in Autosomal Dominant Polycystic Kidney Disease (ADPKD)patients. | RBR-4x92fr |
| Study of effects of vitamin D on some genes expression in multiple sclerosis patients | Study of effects of vitamin D on IL2,IL4, IL-6 ,IL-17A,CYP27A1 and CYP27B1 genes expression in multiple sclerosis patients | IRCT2014081818840N1 |
| A randomised control trial to assess efficacy of fluticasone nasal spay in controlling symptoms of allergic rhinitis as compared to combination of fluticasone nasal spray and orally taken vitamin D | Does topical intranasal steroid spray with oral Vit D results in better control of allergic rhinitis compared to topical intranasal spray alone: A Randomised Control Trial - Not applicable | CTRI/2023/08/056332 |
| The Effect Vitamin D on the Recovery Rate of Bell Palsy | The Effect of Serum Vitamin D on the Recovery Rate of Bell Palsy | NCT05997199 |
| Role of vitamin D supplementation in chronic urticaria patients | Efficacy and Safety of Vitamin D supplementation in patients of Chronic Spontaneous Urticaria - nil | CTRI/2023/08/056420 |
| Comparison Between Intralesional MMR vaccine and Intralesional Vit D in treatment of Plane Warts | Effectiveness of Intralesional MMR Vaccine and Intralesional Vitamin D3 in Treatment of Plane Warts in Tertiary Health Care Center â?? A Randomized Comparative Control Study. - NA | CTRI/2023/08/055966 |
| Therapies to prevent progression of COVID-19 in outpatients: The 'Primary Care Australian COVID-19 Therapeutics' (PACT) Trial | Therapies to prevent progression of COVID-19, including Ivermectin, Doxycycline, Vitamin C, Vitamin D, and Zinc with or without Famotidine: a randomised placebo-controlled double-blind multi-centre outpatient trial | ACTRN12622000386730 |
| Comparing between prescription and not prescription of vitamin D on recurrence of endometriosis related pains | Comparing between prescription and not prescription of vitamin D on recurrence of endometriosis related pains, after laparoscopic surgery | IRCT2013021912151N3 |
| Acceleration of Orthodontic Tooth Movement | Evaluation of Clinical Efficacy of Locally Injected Vitamin D3 (Calcitriol or 1,25 Dihidroxicolecalciferol) in Accelerating Orthodontic Tooth Movement (A Randomized Controlled Trial) | NCT05560919 |
| Effect of Vitamin D supplementation on sarcopenia on type 2 Diabetes population. | Efficacy of Vitamin D supplementation on sarcopenia at risk and body fat distribution among middle aged type 2 Diabetes population - NIL | CTRI/2024/05/067995 |
| Clinical Outcomes Of Mega-dosage Supplementations Of Cholecalciferol In Critically Ill Patients With Sepsis | Clinical Outcomes Of Mega-dosage Supplementations Of Cholecalciferol In Critically Ill Patients With Sepsis | NCT06447441 |
| VItamin D in PregnanCy for PrevenTion of EaRlY Childhood Asthma | VItamin D in PregnanCy for PrevenTion of EaRlY Childhood Asthma (VICTORY) | NCT06570889 |
| Vitamin D in Dialysis Patients - Diagnostic and Therapeutic Management | Vitamin D in Dialysis Patients - Diagnostic and Therapeutic Management | NCT06571344 |
| VITamin D and OmegA-3 TriaL: Effects on Mammographic Density and Breast Tissue | THE EFFECTS OF VITAMIN D ON MAMMOGRAPHIC DENSITY AND BREAST TISSUE | NCT02239874 |
| Efficacy and Safety of Vitamin D Supplementation in Pediatric Patients with Obesity | Efecto De La Suplementación De Vitamina D En La Resistencia a La Insulina En Escolares Y Adolescentes Con Obesidad | NCT06847373 |
| â??Effectiveness of a vitamin D spray compared to regular vitamin D drops in raising vitamin D levels in children with liver problems.participant- children with liver diseaseintervention- vitd3 buccal sprayoutcome- to compare improvement in vit d3 levels in both groups. | Efficacy of Nano-emulsified buccal mucosal spray of cholecalciferol vs Conventional cholecalciferol in achieving higher 25-hydroxy Vitamin D concentration in pediatric cholestasis- A randomised control trial | CTRI/2025/05/086944 |
| Omega-3 and Vitamin D Supplementation in Breast Cancer Women | The Effects of Combined Omega-3 and Vitamin D Supplementation on Nutritional Status, Quality of Life and Inflammatory Markers Among the Breast Cancer Women in Gaza Strip | NCT05331807 |
| Effects of vitamin D supplementation on hs-CRP level and metabolic indices in thai postmenopausal women: a randomized-controlled trial | Effects of vitamin D supplementation on hs-CRP level and metabolic indices in thai postmenopausal women: a randomized-controlled trial | TCTR20161216001 |
| Comparison of sun exposure versus vitamin D supplementation for pregnant women with vitamin D deficiency | Comparison of sun exposure versus vitamin D supplementation for pregnant women with vitamin D deficiency | IRCT2016101227998N2 |
| Impact of Vitamin D Supplementation on Hepcidin Levels and Transfusion Requirements in Surgical and Septic Patients | Impact of Vitamin D Enteral Supplementation on Hepcidin Serum Levels and Transfusion Requirements in Surgical and Critically Ill Patients | NCT03001687 |
| Vitamin D Supplementations as Adjunct to Anti-Tuberculosis Drugs in Mongolia | Vitamin D Supplementations as Adjunct to Anti-Tuberculosis Drugs in Mongolia | NCT01657656 |
| Role of Vitamin D Therapy in Recovery From Early Neonatal Sepsis (Randomized Controlled Trial) | Role of Vitamin D Therapy in Recovery From Early Neonatal Sepsis (Randomized Controlled Trial) | NCT05969327 |
| Vitamin D oral gel for radiation induced oral mucositis. | Efficacy of Vitamin D oral gel in prevention and management of radiation induced oral mucositis. | CTRI/2022/03/040926 |
| A clincial study evaluating the safety of the diabetes vaccine Diamyd® in combination with Vitamin D, and if it can delay or stop the process leading to type 1 diabetes in children at high risk of developing the disease | A double-blind, randomized investigator-initiated study to determine the safety and the effect of Diamyd® in combination with Vitamin D on the progression to type 1 diabetes in children with multiple islet cell autoantibodies - DiAPREV-IT 2 | EUCTR2014-003755-64-SE |
| Incidence of vitamin D deficiency and temporal changes in vitamin D levels in very preterm or low birth weight infants | Incidence of vitamin D deficiency and temporal changes in vitamin D levels in very preterm or low birth weight infants: a prospective, single center study | TCTR20230725007 |
| Role of Vitamin D And Calcium supplementation on breast cancer receiving chemotherapy | To study the role of Vitamin D and calcium supplementation on tumor response in patients receiving neoadjuvant chemotherapy for stage II/III breast cancer- A comparative study | CTRI/2022/03/040878 |
| Vitamin D in pneumonia in under five children- A randomized controlled trial | Outcome of severe lower respiratory infection in under-five children with vitamin D supplementation | CTRI/2014/09/005032 |
| study to compare treatment options in for warts using MMR vaccine and vitamin D injection | A randomized single blind controlled trial comparing efficacy of intralesional vitamin D injection and MMR (measles, mumps, rubella) vaccine in treatment of warts - NIL | CTRI/2023/08/056461 |
| Effects Of Vitamin D On Bone, Muscle, And Adipose Tissue In Obese Subjects | Effects Of Vitamin D On Bone, Muscle, And Adipose Tissue In Obese Subjects: A Randomized, Double-Blind, Placebo-Controlled Study | NCT06508242 |
| Vitamin D in Trauma | The Effect of single dose Vitamin D injection on renal function in Patients with Traumatic Injuries Hospitalized in Intensive Care Unit | IRCT20221121056570N2 |
| Comparison of Bioavailability of Liposomal and Traditional Formulation of Vitamin D3 | Comparison of Bioavailability of Liposomal and Traditional Formulation of Vitamin D3 | NCT06010121 |
| Beneficial Role of Vitamin D in Dengue Fever | Beneficial Role of Vitamin D Supplementation and Clinical Outcomes in Patients with Dengue Fever - NIL | CTRI/2023/10/059167 |
| Comparative Evaluation of the Effectiveness of Diclofenac Sodium Versus Vitamin D on Myofascial Pain | Comparative Evaluation of the Effectiveness of Diclofenac Sodium Versus Vitamin D Supplements on Symptoms in Individuals With Myofascial Pain and Vitamin D Deficiency | NCT06111573 |
| Effects of CoQ10, melatonin, vitamin B groups, vitamin D. and probiotic on reducing COVID-19 symptoms during recovery | Evaluating the Effects of CoQ10, melatonin, vitamin B groups, vitamin D. and probiotic on reducing COVID-19 symptoms during recovery- A randomized double blind controlled Clinical Trial | IRCT20140804018677N21 |
| Vitamin D and Calcium medicine effect on bone health in hemophilia patients | Effect of supplementation of Vitamin D and Calcium on bone health in people with hemophilia (PWH) from Hemophilia treatment center of Karnataka - Nil | CTRI/2023/10/059237 |
| The Effect of Vitamin D on the Treatment of Anogenital Warts Related Human Papillomavirus (HPV) | The Effect of Vitamin D on the Treatment of Anogenital Warts and Quality of life-related Human Papillomavirus in Patients With Anogenital Warts | IRCT20230827059276N1 |
| Vitamin D in the Treatment of Primary Restless Legs Syndrome | Vitamin D in the Treatment of Primary Restless Legs Syndrome: 12 Weeks, Triple-blinded, Randomized, Placebo-controlled Trial | NCT02256215 |
| An oral vitamin D regimen for hypovitaminosis D in obese children and adolescents | An oral vitamin D regimen for hypovitaminosis D in obese children and adolescents | IRCT2014090812421N2 |
| Efficacy and safety of simeprevir/pegylated-interferon/ribavirin combination therapy with Vitamin D3 in chronic hepatitis C patients: multi-center, open label, randomized, controlled study | Efficacy and safety of simeprevir/pegylated-interferon/ribavirin combination therapy with Vitamin D3 in chronic hepatitis C patients: multi-center, open label, randomized, controlled study - Simeprevir/peg-interferon/ribavirin combination therapy with or without Vitamin D3 | JPRN-UMIN000013017 |
| Scaling production and clinical study of value-added products from by-product of Buk-Siam Maejo Hybrid catfish processing | Calcium and Vitamin D supplementation with and without collagen on bone density and skin elasticity in menopausal woman-A randomized controlled study | TCTR20231021002 |
| Vitamin D in Pediatric Asthma: a Randomized Controlled Open-label Pilot Trial | Prospective Open Pilot of Low vs. Higher Dose Vitamin D in D-deficient Asthmatic Children: Does Diet Predict Immune Function and Asthma Symptom Response to Vitamin D Supplementation? | NCT02054975 |
| The Effect of a High-dose Oral Vitamin D3 Bolus on Serum 25(OH)D3 and Vitamin D Receptor Target Gene Expression | The Effect of a High-dose Oral Vitamin D3 Bolus on Serum 25-hydroxyvitamin D3 and Vitamin D Receptor Target Gene Expression (VitDbol) | NCT02063334 |
| Vitamin D3 Supplementation in Pediatric IBD: Weely vs Daily Dosing Regimens | | NCT02256605 |
| Effect of supplementation in treatment of pregnancy complications | Effects of vitamin D supplementation on metabolic profiles in pregnant women who are at risk of pre-eclampsia | IRCT201410035623N27 |
| Intervention With Vitamin D and Omega-3 Supplements and Incident Heart Failure | Intervention With Vitamin D and Omega-3 Supplements and Incident Heart Failure | NCT02271230 |
| Effect of vitamin D supplement on level of serum vit D and HDL in children between 10-14 yrs | comparison of vitamin D supplement and placebo effects on level of serum vit D and HDL in children between 10-14 yrs | IRCT2014050717608N1 |
| Effect of vitamin D, vitamin D + calcium supplementation on nonalcoholic fatty liver disease | The effect of vitamin D supplementation, vitamin D + calcium on fat storage in liver, serum lipoproteins and insulin sensitivity in patients with non-alcoholic fatty liver disease compared with controls. | IRCT201408312709N29 |
| Vitamin D for treating autism | Vitamin D for treating autism, a controlled clinical trial | IRCT201405273930N34 |
| A Trial on Different Dosages of Vitamin D in Preterm Infants With Late-onset Sepsis | Effect of Different Dosages Oral Vitamin D on Serum Interleukin-6 in Preterm Infants With Late-onset Sepsis | NCT02273843 |
| Prophylactic Oral Vitamin D and Zinc for Radiation-Induced Oral Mucositis in Head and Neck Cancer | Effect of Prophylactic Use of Oral Vitamin D and Zinc in Management of the Severity of Radiation Induced Oral Mucositis of Head and Neck Cancer Patients | NCT06100692 |
| The Effect of UV-C Enriched Foods on Vitamin D Deficiency | The Effect of Consumption of UV-C Enriched Foods on Biochemical Findings in Adults With Vitamin D Deficiency | NCT06098820 |
| A clinical trial to study the cardioprotective effect of remote ischemic preconditioning in acute coronary syndrome patients | Evaluation of the cardioprotective effect of remote ischaemicpreconditioning in acute coronary syndrome patients and its correlation with vitamin D | CTRI/2023/10/058663 |
| Vitamin D and its Relevance for the Borderline Personality Disorder | Vitamin D and its Relevance for the Borderline Personality Disorder | DRKS00032504 |
| Effect of Vitamin D Supplement on Prevention of Preeclampsia in Pregnant Women | Comparing the Impact of Vitamin D Supplementation with Placebo on Pre-eclampsia Prevention in Pregnant Women | IRCT20230814059146N1 |
| Does vitamin D3 has any effect in preventing preeclampsia and its complication in pregnant females | Efficacy and safety of vitamin D3 supplementation in the prevention of pre-eclampsia and associated complications: A randomized controlled clinical study - NIL | CTRI/2023/08/056852 |
| Does Vitamin D3 has any effect in mastalgia treatment | Evaluation of efficacy and safety of vitamin D3 as an add on therapy to diclofenac for treatment of mastalgia: A randomised controlled trial | CTRI/2023/08/056980 |
| Effect of adjunctive vitamin D supplementation as measured by serum vitamin D And NGF levels in Autism Spectrum Disorder | Effect of adjunctive vitamin D supplementation as measured by serum vitamin D And NGF levels in Autism Spectrum Disorder: An Open-label trial. - NIL | CTRI/2023/08/057042 |
| Vitamin D supplementation in knee osteoarthritis | Vitamin D supplementation in knee osteoarthritis | TCTR20230901001 |
| Vitamin D3-enhanced Eggs in Preschool Children | Effect of the Consuption of Vitamin D3-enhanced Eggs on Serum 25-hydroxivitamin D[(25-OH)D3] and Parathyroid Hormone (PTH) in Preschool Children | NCT06096194 |
| Efficacy of Injectable Vitamin D Supplementation in Females With Polycystic Ovary Syndrome | Efficacy of Vitamin D Supplementation in Females With Polycystic Ovary Syndrome: a Randomized Open Label Delayed-start Design | NCT06045351 |
| The Role of Vitamin D in Amelioration of Oral Lichen Planus and Its Effect on Salivary IFN-? Level | The Role of Vitamin D in Amelioration of Oral Lichen Planus and Its Effect on Salivary IFN-? Level: a Randomized Clinical Trial | NCT06204796 |
| Effect of vitamin D supplementation on IL-37 and TNF-a in children with autism spectrum disorders | Effect of vitamin D supplementation on IL-37 and TNF-a in children with autism spectrum disorders | IRCT20170827035936N3 |
| Effect of oral vitamin D supplementation on endothelial dysfunction in patients with systemic lupus erythematosus: a randomized controlled trial. | Effect of oral vitamin D supplementation on endothelial dysfunction in patients with systemic lupus erythematosus: a randomized controlled trial. - VIDEL | CTRI/2012/07/002838 |
| Effect of use Vitamin D3?? ??for outcome in pertrochanteric patient in Valiasr hospital | Effect of use Vitamin D3?? ??for outcome in pertrochanteric patient in Valiasr hospital | IRCT2016102620258N15 |
| The interactive effects of nutrient mixtures and probiotics supplementation on muscle mass and function among sarcopenic elderly adults with vitamin D insufficiency: a multicenter factorial design trial | The interactive effects of nutrient mixtures and probiotics supplementation on muscle mass and function among sarcopenic elderly adults with vitamin D insufficiency: a multicenter factorial design trial - nutrient mixtures and probiotics supplementation on sarcopenia | JPRN-UMIN000052232 |
| Estimation of the Dietary Requirement for Vitamin D in Ethnic Groups | Estimation of the Dietary Requirement for Vitamin D in Ethnic Groups: a Double-blind, Randomised, Dose-response Trial | NCT06067477 |
| Supplementation With Vitamin D3 on Chronic Low Back Pain Patient | Effect of 8-week Supplementation With Vitamin D3 on Functional and Cognitive Performance in Patients With Chronic Low Back Pain Eligible for Neurosurgery Intervention | NCT06082375 |
| Clinical study of vitamin D supplementation for breast-fed infants. | Clinical study of vitamin D supplementation for breast-fed infants. - Clinical study of vitamin D supplementation for breast-fed infants. | JPRN-UMIN000052350 |
| Human Transdermal Vitamin D Supplement Study | Double-Blind Placebo-Controlled Human Transdermal Vitamin D Supplement Study | NCT06098846 |
| The effect of vitamin D supplementation on the treatment of head and neck cancer patients | Evaluation of vitamin D supplementation on the treatment of patients with head and neck Squamous-Cell Carcinoma (SCC) | IRCT20230926059515N1 |
| Effect of Vitamin D Supplementation on Allostatic Load and Chronic Stress Along Line of Control in Azad Jammu Kashmir | "Effect of Vitamin D Supplementation on the Allostatic Load and Chronic Stress Along Line of Control in Azad Jammu and Kashmir. ""Double Blind Randomized Placebo-controlled Trial""" | NCT06101589 |
| Comparison of the effects of vitamin D and N-acetylcysteine supplementation on the expression of cellular senescence genes and inflammatory factors in the elderly with vitamin D deficiency. | Comparison of the effects of vitamin D and N-acetylcysteine supplementation on the expression of cellular senescence genes and inflammatory factors in the elderly with vitamin D deficiency. A double-blind randomized clinical trial | IRCT20230508058120N1 |
| Study of Folic Acid, Calcium and Vitamin D in Preventing Colorectal Polyps and Colorectal Cancer | A Randomize Controlled Trial of Folic Acid, Calcium and Vitamin D in Preventing Colorectal Polyps and Colorectal Cancer | NCT02066688 |
| Effect of Vitamin D Injection on Hypertrophic Scars and Keloids | Effect of Vitamin D Injection on Hypertrophic Scars and Keloids | NCT06301178 |
| Real Time Identification of Pathogens Causing ARTI and Role of Vitamin D in Children | Real time identification of common pathogens causing acute respiratory tract infection in children below 14 years of age and role of vitamin D supplementation in reduction of ARTI - NIL | CTRI/2024/01/061577 |
| Treatment of Vitamin D Deficiency With Large Bolus Cholecalciferol | Treatment of Vitamin D Deficiency With Large Bolus Cholecalciferol in the Outpatient Setting | NCT04120064 |
| Vitamin D3 with Chemotherapy and Bevacizumab in Treating Patients with Advanced or Metastatic Colorectal Cancer | Randomized Double-Blind Phase III Trial of Vitamin D3 Supplementation in Patients with Previously Untreated Metastatic Colorectal Cancer (SOLARIS) | NCT04094688 |
| Role of Vitamin D in heart and kidney Disease | Mechanistic analysis of the effect of cholecalciferol supplementation on endothelial, smooth muscle and immune function in patients with Chronic kidney Disease | CTRI/2019/10/021494 |
| Pathogenesis of long bone fractures in Vitamin D deficient children | The effect of Vitamin D supplementation on fracture healing in Vitamin D deficient children: a placebo controlled trial | ACTRN12614000967684 |
| Pilot Study- Treat to Target Vitamin D in End Stage Renal Disease | Pilot Study- Treat to Target Vitamin D in End Stage Renal Disease | NCT04167111 |
| Effect of vitamin D administration in critically ill vitamin D deficient patients | Effect of vitamin D administration in critically ill vitamin D deficient patients. | CTRI/2019/11/022098 |
| Impact of Vitamin D Supplementation on Cardiometabolic Status and Androgen Profile in Polycystic Ovary Syndrome | Impact of Vitamin D Supplementation on the Cardiometabolic Status and Androgen Profile in Women With Polycystic Ovary Syndrome: Placebo-Controlled Clinical Trial | NCT04117750 |
| CHolecalciferol vs calcifediol effect on mineral bone metabolism of hemodialysis patients. | An unicentric, open, randomized and crossover clinical trial to evaluate vitamin D supplementation effect of colecalciferol versus calcidiol in mineral metabolism in hemodialisis patients. | EUCTR2019-003101-97-ES |
| The effect of vitamin D administration on bone and inflammatory indexes in hemodialysis patients | The effect of vitamin D administration on bone and inflammatory indexes in hemodialysis patients | IRCT20190921044834N1 |
| a study to asess whether administration of vitamin D makes any difference on the length of ICU stay | Effect of early administration of vitamin D on clinical outcome in critically ill sepsis patients: a single centre randomized placebo controlled trial | CTRI/2019/12/022537 |
| COvid-19 and Vitamin D supplementation: a multicenter randomized controlled Trial of high dose versus standard dose vitamin D3 in high-risk COVID-19 patients | COvid-19 and Vitamin D supplementation: a multicenter randomized controlled Trial of high dose versus standard dose vitamin D3 in high-risk COVID-19 patients - CoVitTrial | EUCTR2020-001602-34-FR |
| Impact of Zinc and Vitamin D3 Supplementation on the Survival of Aged Patients Infected With COVID-19 | Impact of Zinc and Vitamin D3 Supplementation on the Survival of Institutionalized Aged Patients Infected With COVID-19 | NCT04351490 |
| Ivermectin-Azithromycin-Cholecalciferol (IvAzCol) Combination Therapy for COVID-19 | A Pilot Study for COVID-19 Outpatient Treatment With the Combination of Ivermectin-azithromycin-cholecalciferol | NCT04399746 |
| Effect of Vitamin D on Morbidity and Mortality of the COVID-19 | Estudio Destinado a Valorar la Utilidad de Vitamina D Sobre Morbilidad y Mortalidad de la infección Por Virus SARS-COV-2 (COVID-19) en el Hospital Universitario Central de Asturias | NCT04552951 |
| The Role of Vitamin D3 in Pediatric Bronchiectasis Severity | The Role of Vitamin D3 in Pediatric Bronchiectasis Severity( CF Versus Non CF Bronchioectasis) | NCT04411901 |
| Vitamin D3 in Sensory Recovery After Digital NERVe Suture (D3NERV). | Vitamin D3 in Sensory Recovery After Digital NERVe Suture: a Randomized Controlled Trial. | NCT04115982 |
| Commercial study conducted to determine the most adequate supplementation of vitamin D in patients showing a kidney disease, a vitamin D deficiency and a high level of parathyroid hormone in the blood. | A phase II, randomised, double-blind, and parallel study to estimate the dose-response of vitamin D supplementation in chronic kidney disease patients with secondary hyperparathyroidism and vitamin D deficiency. | EUCTR2019-000640-10-BG |
| This Study Include Chronic Obstructive Pulmonary Disease(COPD) Patients . Patients Were Vitamin D Deficient Age Range 40 to 80 Years, Smokers Patients Were Advised to Take Either Placebo or Vitamin D3 . Antioxidant Enzymes Were Assessed at Baseline and at 26th Weeks. | Effects of Vitamin D3 Supplementation on Antioxidant Enzymes Level in Vitamin D3 Deficient COPD Patients | NCT04011930 |
| Effect of Vitamin D3 on Lung Function and Exercise Tolerance in COPD Patients | Effect of Vitamin D3 on Lung Function and Exercise Tolerance in D3 Deficient COPD Patients | NCT03781895 |
| Effect of Vitamin D Supplementation on Inflammatory Markers | Effect of Vitamin D Treatment on Some Inflammatory Markers in Non-obese Lebanese Patients With Type 2 Diabetes | NCT03782805 |
| Vitamin D Supplementation for Acute Bronchiolitis | Does Oral Vitamin D Supplementation in Egyptian Infants With Acute Bronchiolitis Improve the Outcome? A Double Blind Randomized Controlled Trial | NCT03799406 |
| Evaluation of efficacy and safety of various doses of oral vitamin D required to achieve optimal serum level of Vitamin D among Indian adults | Evaluation of efficacy and safety of various doses of oral cholecalciferol required to achieve optimal serum level of 25(OH)D among adults. | CTRI/2019/01/016855 |
| Vitamin D deficiency and bone | Vitamin D deficiency and bone microarchitecture in asymptomatic healthy Indians: Exploring the functional significance of low serum 25(OH)D and high PTH | CTRI/2019/01/017094 |
| Comparison of the efficacy of two doses of Vitamin D supplementation to prevent Vitamin D deficiency in healthy term breastfed infants. | Efficacy of 800 IU versus 400 IU per day of oral Vitamin D3 supplementation on Vitamin D sufficiency in healthy, breastfed infants: A Randomized Controlled trial. | CTRI/2019/02/017374 |
| This Study Include Asthma Chronic Obstructive Pulmonary Disease (COPD) Overlap Patients.Patients Were Vitamin D Deficient.Age Range 40-70 Years, Smokers.Patients Were Advised to Take Either Placebo or Vitamin D3.Lung Functions and Exercise Tolerance Were Assessed at Baseline and at 26th Weeks. | Effects of Vitamin D3 Supplementation on Lung Functions and Exercise Tolerance in D3 Deficient Asthma COPD Overlap (ACO) Patients | NCT03880734 |
| Efficacy of vitamin D supplementation in children with attention deficit hyperactivity disorder | The effect of vitamin D supplementation on attention deficit hyperactivity disorder symptoms and stress oxidative in children | IRCT201404222394N10 |
| Mesenchymal Stem Cells in Patients With Type 1 Diabetes Mellitus | Allogenic Adipose Derived Mesenchymal Stem Cells and Vitamin D Supplementation in Patients With Recent-onset Type 1 Diabetes Mellitus | NCT03920397 |
| Immunomodulatory Vitamin D in Thalassemia | Immunomodulatory Effect of Vitamin D Supplementation on Monocyte in Major Beta-thalassemia | NCT03919812 |
| Effect of supplementation in treatment of polycystic ovary syndrome | Effects of vitamin D and calcium co-supplementation on inflammatory factors and biomarkers of oxidative stress in overweight and deficient vitamin D women with polycystic ovary syndrome | IRCT201407015623N21 |
| Comparison of pharmacokinetics between administration of fixed-dose combination or loose combination of HUG186(Bazedoxifene and Cholecalciferol) | A phase 1 clinical trial to evaluate the safety and pharmacokinetic characteristics after administration of fixed-dose combination or loose combination of HUG186 in healthy adult male or menopausal female volunteers | KCT0003839 |
| The Efficacy and the Safety of Vitamin D3 30,000 IU for Loading Dose Schedules | Controlled Randomized Open Label Clinical Study to Compare the Efficacy and the Safety of the Loading Dose Schedules of Vitamin D3 (Colecalciferol) 30,000 IU Product in Deficient Patients | NCT04476511 |
| Vitamin D for heart disease in patients with kidney disease | CVD, inflammation and bone metabolism markers in CKD: Feasibility study of a multi-centric, randomized trial of cholecalciferol supplementation | CTRI/2019/05/019211 |
| High dose Vitamin D in Preventing Aggravation of COVID-19 | Preventing Disease Aggravation in COVID-19 by high dose Vitamin D: a randomized trial (COVIT-D) - COVIT-D | EUCTR2020-001793-30-DK |
| Study to Document the Phenomenon of Vitamin D Deficiency and Its Added Value in Patients with Low-energy Osteoporotic Hip Fracture, in Daily Practice in Greece. | PHASE IV Observational Study to Document the Phenomenon of Vitamin D Deficiency and Its Added Value in Patients with Low-energy Osteoporotic Hip Fracture, in Daily Practice in Greece. | NCT06643650 |
| 30000 IU Per Week Vitamin D Treatment in PCOS Patients | A Multicentre, Phase-II, Randomised, Double Blind, Placebo-controlled Study to Assess the Safety and the Efficacy of a Weekly Administered Dose of 30,000 IU Vitamin D (Colecalciferol) in Deficient Patients Diagnosed With PCOS | NCT04840238 |
| Efficacy of Vitamin D Treatment in Pediatric Patients Hospitalized by COVID-19 | Efficacy of Vitamin D Treatment in Pediatric Patients Hospitalized by COVID-19: Open Controlled Clinical Trial | NCT04502667 |
| Vitamin D Supplementation and Clinical Outcomes in Severe COVID-19 Patients | Vitamin D Supplementation and Clinical Outcomes in Severe COVID-19 Patients - Randomized Controlled Trial | NCT05384574 |
| Effect of Raloxifene Plus Cholecalciferol and Cholecalciferol Alone on the Bone Mineral Density in Postmenopausal Women With Osteopenia | Effect of Raloxifene Plus Cholecalciferol and Cholecalciferol Alone on the Bone Mineral Density in Postmenopausal Women With Osteopenia: an 1-year Randomized Controlled Trial | NCT05386784 |
| Association of Cathelicidin and Vitamin D Levels With the Category and Course of COPD | Association of Cathelicidin and Vitamin D Levels With the Category and Course of COPD | NCT05431218 |
| Vitamin D uptake in chronic kidney disease | Vitamin D uptake in chronic kidney disease | DRKS00029157 |
| Vitamin D, Oxidative Stress and Inflammation in Hemodialysis | Effect of Oral Vitamin D on Oxidative Stress and Inflammation in Hemodialysis | NCT05460338 |
| Vitamin D and bone health | â??Vitamin D Status and bone micro-architecture in asymptomatic healthy females and healthy males, effect of vitamin D on Trabecular bone scoreâ?? | CTRI/2022/07/044030 |
| vitamin D and bone health | ââ?¬Å?Vitamin D status and bone micro-architecture in asymptomatic healthy females and healthy males, effect of vitamin D on trabecular bone score: A randomized trialââ?¬? | CTRI/2022/08/044759 |
| """Effect of vitamin D on anxiety and depresion of patients with colorectal cancer""" | Evaluation of the effect of serum vitamin D levels on anxiety and depression in patients with colorectal adenocarcinoma | IRCT20220609055113N1 |
| Effect of Vitamin D and Denosumab on Bone Remodelling in Women With Postmenopausal Osteoporosis | Vitamin D Improves Osteoporosis in Postmenopausal Women With Denosumab Failure | NCT05372224 |
| High Oral Loading Dose of Cholecalciferol in Non-Alcoholic Fatty Liver Disease | The Effect of High Oral Loading Dose of Cholecalciferol in Non-Alcoholic Fatty Liver Disease Patients | NCT05578404 |
| Effect of Single High Dose of Cholecalciferol on Serum Metabolites of Vitamin D | The Effect of Single High Dose of Vitamin D on Serum Levels of Its Metabolites | NCT05591170 |
| Oral Vitamin D Supplementation Prevent Peritoneal Dialysis-related Peritonitis | The Effects of Oral Vitamin D Supplementation on the Prevention of Peritoneal Dialysis-related Peritonitis, a Multicenter Randomized Controlled Trial | NCT05860270 |
| Cholecalciferol Supplementation in Hemodialysis Patients | Impact of Cholecalciferol Supplementation in Hemodialysis Patients | NCT05922696 |
| The Role of Vitamin D in Neuroinflammatory on Drug Resistant Epilepsy | The Role Of Vitamin D For Therapy Responses On Drug Resistant Epilepsy Through Glial-Cell-Line Derived Neurotrophic Factor (GDNF) And Interleukin 1ß (IL-1 ß) Modulation Pathway | NCT06053281 |
| The Effect of Vitamin D3 Therapy on Vitamin D Status in Pregnant Women With Vitamin D Deficient and Insufficient | The Effect of Vitamin D3 Therapy on 25(OH)D, 1,25(OH)2D, VDBP, and 24,25(OH)2D Maternal Serum Levels in Pregnant Women With Vitamin D Deficient and Insufficient | NCT06054919 |
| The High Initial Dose of Monitored Vitamin D Supplementation in Preterm Infants. | The High Initial Dose of Monitored Vitamin D Supplementation in Preterm Infants. A Randomized Controlled Study. | NCT06199102 |
| Effect of Preoperative High-dose Cholecalciferol in Prevention of Post-thyroidectomy Hypocalcaemia | Effect of Preoperative High-dose Cholecalciferol in Prevention of Post-thyroidectomy Hypocalcaemia : A Randomized Controlled Trial | NCT05586529 |
| Frequency of Hyperparathyroidism in Postmenopausal Osteoporosis and Its Treatment | Resolution of Hyperparathyroidism With High-dose Vitamin D Improves Osteoporosis in Multi-treated Postmenopausal Women | NCT05347082 |
| Early High-Dose Vitamin D and Residual ß-Cell Function in Pediatric Type 1 Diabetes | The Effect of Early High-dose Vitamin D Intervention on the Residual ß-cell Function in Adolescents and Children With Type 1 Diabetes | NCT05270343 |
| Efficacy of Intensive Cholecalciferol Monitoring and Supplementation on Serum vitD Levels in Pediatric Patients With CF | A Randomized, Double-blind Study of the Efficacy of Intensive Cholecalciferol Monitoring and Supplementation on Serum Vitamin D Levels in Pediatric Patients With Cystic Fibrosis | NCT05276960 |
| Calcitriol and cholecalciferol effect on cardiac biomarkers | the comparison of Effect of calcitriol and cholecalciferol on cardiac biomarkers in patients undergoing elective percutaneous coronary intervention, a randomized controlled study | IRCT20150518022306N3 |
| DOES VITAMIN D HELP IN HEALING AFTER BYPASS SURGERY | SERUM VITAMIN D LEVELS IN PATIENTS UNDERGOING CORONARY ARTERY BYPASS GRAFTING AND ITS CORRELATION WITH STERNAL HEALING - RIDS | CTRI/2020/10/028368 |
| Mothers' Own Milk Optimization for Preterm Infants Project (MoMO PIP) Pilot Study | Mothers' Own Milk Optimization for Preterm Infants Project (MoMO PIP): Maternal Diet and Vitamin D Supplementation Effects on Preterm Infants, a Randomized Control Pilot Study. | NCT04629534 |
| Effect of Vitamin D on Hospitalized Adults With COVID-19 Infection | Vitamin D Supplementation and Covid-19: a Randomised, Double- Blind, Controlled Study | NCT04636086 |
| Effect of the administration of different Hidroferol¿ Soft Gelatine Capsules (calcifediol) and cholecalciferol (Dibase¿) regimens on vitamin D levels and markers of bone remodelling in postmenopausal women with vitamin D deficiency. Influence of clinical and genetic factors in the population with or without osteoporosis. | Effect of the administration of different Hidroferol¿ Soft Gelatine Capsules (calcifediol) and cholecalciferol (Dibase¿) regimens on 25(OH)D levels and markers of bone remodelling in postmenopausal women with 25(OH)D deficiency. Influence of clinical and genetic factors in the osteoporotic and non-osteoporotic population. - HIDR-0217/OST | EUCTR2017-004028-31-IT |
| The Effect of Vitamin D Therapy on Morbidity and Moratlity in Patients With SARS-CoV 2 Infection | The Effect of Vitamin D Therapy on Morbidity and Moratlity in Patients With SARS-CoV 2 Infection | NCT04733625 |
| Vitamin D Supplementation in Rheumatoid Arthritis | A Prospective Randomized, single centre, two arm open label trial to evaluate the efficacy of daily and weekly high dose vitamin D (Cholecalciferol) in Rheumatoid Arthritis patients â?? A Pilot Study. | CTRI/2021/04/032530 |
| The Effect of Cholecalciferol in Pre-frail Elderly | The Effect of Cholecalciferol on Frailty Syndrome in Pre-frail Elderly Receiving Calcium Supplementation : A Study on Handgrip Strength, Gait Speed, Vitamin D Receptor, Insulin Growth Factor-1 and Interleukin-6 | NCT04847947 |
| Cholecalciferol on Depressive Symptoms in Type 2 Diabetes Mellitus Patients | Effects of Cholecalciferol on Depressive Symptoms in Type 2 Diabetes Mellitus Patients: Study of Neurotrophin-3, Serotonin, and C-Peptide | NCT04917458 |
| Prevention of Postoperative Hypocalcemia of Oral Vitamin D Supplementation Before Total Thyroidectomy | Study for Effectiveness in Prevention of Postoperative Hypocalcemia of Preoperative Oral Supplementation of Vitamin D (D-mac 30,000 IU) in Patients Undergoing Total Thyroidectomy | NCT05216419 |
| High-dose Vitamin D Supplement for the Prevention of Acute Asthma-like Symptoms in Preschool Children | High-dose Vitamin D Supplement for the Prevention of Acute Asthma-like Symptoms in Preschool Children - a Double-blind, Randomized, Controlled Trial | NCT05043116 |
| Short Term, High Dose Vitamin D Supplementation in Moderate to Severe COVID-19 Disease | Short Term, High Dose Vitamin D Supplementation in Moderate to Severe COVID-19 Disease | NCT04952857 |
| Immunological Effects of Vitamin D Replacement Among Black/African American Prostate Cancer Patients | Differences in Immunological Effects of Vitamin D Replacement Among Black/African American (AA) Prostate Cancer Patients with Localized Versus Metastatic Disease | NCT05045066 |
| A study to evaluate the effect of Aqueous Cholecalciferol injection in Vitamin-D deficient, but otherwise healthy, adult human subjects. | A randomized, open-label, two-treatment, single-dose, parallel, comparative, pharmacokinetic (PK)/pharmacodynamic (PD) study to evaluate Aqueous Cholecalciferol injection 6,00,000 IU/2mL of CadilaPharmaceuticals Limited, India with marketed Cholecalciferol 600000 IU oil-based injection in Vitamin-D deficient, but otherwise healthy, adult human subjects under fed condition. | CTRI/2021/10/037407 |
| Establish multidisciplinary management project for secondary hyperparathyroidism in kidney transplantation recipients | The effect of posttransplant vitamin D supplementation on kidney transplantation recipients with secondary hyperparathyroidism | ChiCTR2200056077 |
| Efficacy of Vitamin D Supplementation to Prevent the Risk of Acquiring COVID-19 in Healthcare Workers | Efficacy of Vitamin D Supplementation to Prevent the Risk of Acquiring or Evolving Into the Severe Form of COVID-19 in Healthcare Workers Caring for Patients With the Disease. Blinded Randomized Clinical Trial | NCT04535791 |
| EFFECT OF VITAMIN D REPLACEMENT ASSOCIATED WITH ADAPTIVE IMMUNE RESPONSE IN CHRONIC HEPATITIS C PATIENTS WITH VITAMIN D DEFICIENCY | EFFECT OF VITAMIN D REPLACEMENT ASSOCIATED WITH ADAPTIVE IMMUNE RESPONSE IN CHRONIC HEPATITIS C PATIENTS WITH VITAMIN D DEFICIENCY | TCTR20160429001 |
| Pilot Assessment of the Safety of a Combination of Curcumin, Omega-3, and Vitamin D Supplements in ACPA+ Individuals | Pilot Assessment of the Safety of a Combination of Curcumin, Omega-3, and Vitamin D Supplements (PASCOD) in ACPA+ Individuals | NCT06478290 |
| Intervention study in older people with vitamin D deficiency and osteopenia | Intervention study in older people with vitamin D deficiency and osteopenia | ChiCTR2400083872 |
| Investigating the impact of topical vitamin D on anogenital warts | The effectiveness of topical vitamin D3 and cryotherapy in comparison with cryotherapy in treating anogenital warts | IRCT20230124057201N4 |
| A study to see the effect of calcium and vitamin D supplementation on the progression of dengue fever to dengue shock syndrome and dengue hemorrhagic fever, | A randomized placebo controlled study evaluating the effect of calcium and vitamin D supplementation on the progression of dengue fever to dengue shock syndrome and dengue hemorrhagic fever - nil | CTRI/2024/05/066756 |
| The effects inofolic supplementation, probiotic and vitamin D in polycystic ovary syndrome women candidate for In Vitro fertilization | The effect of inofolic supplementation in combination with probiotics and vitamin D on ovarian response and metabolic profiles in women with polycystic ovary syndrome candidate for In Vitro Fertilization | IRCT20130211012438N34 |
| Accelerated orthodontics with Vitamin D and Injectable Platelet Rich Fibrin | Comparison and Evaluation of The Rate of Tooth Movement between Vitamin D and Injectable Platelet Rich FibrinA Randomised Controlled Trial - NIL | CTRI/2024/04/066280 |
| Prevention of hypocalcemia, vitamin D deficiency and secondary hyperparathyroidism in patients after laparoscopic sleeve gastrectomy by supplementation of vitamin D | Prevention of hypocalcemia, vitamin D deficiency and secondary hyperparathyroidism in patients after laparoscopic sleeve gastrectomy by supplementation of vitamin D | DRKS00007143 |
| The effect of vitamin D supplementation compared to placebo on quality of life in stage II-III colorectal cancer patients undergoing adjuvant chemotherapy at Hasan Sadikin Hospital: A single-blind, randomized control trial. | The effect of vitamin D supplementation on quality of life in stage II-III colorectal cancer patients undergoing adjuvant chemotherapy at Hasan Sadikin Hospital: A single-blind, randomized control trials | SLCTR/2024/016 |
| Vitamin D to ENhance TraUma REcovery | Randomized Controlled Trial of Vitamin D to Reduce Racial Disparity in Chronic Pain Following Motor Vehicle Collision | NCT05458024 |
| Vitamin D in Bone and Kidney graft Health Post renal Transplant | Study of Therapeutic Role Of Vitamin D in Bone mineral Density and renal allograft survival. - TRuVitaD | CTRI/2024/04/065874 |
| Comparison Of Resistance Training And Core Strengthening Exercises Vitamin D In Postmenopausal Women With Low Back Pain | Comparison Of Resistance Training And Core Strengthening Exercises Along With Vitamin D Intake In Postmenopausal Women With Low Back Pain | NCT06377618 |
| Effect of cinnamon biscuits enriched with vitamin D on migraine headaches | Investigating the effect of cinnamon biscuits enriched with vitamin D compared to simple biscuits on the intensity, duration and frequency of migraine attacks and inflammatory indices in people suffering from migraine headaches: a randomized, controlled, double-blind clinical trial | IRCT20240212060963N1 |
| The effect of vitamin D supplementation along with intravitreal injection of bevacizumab in the treatment of patients with diabetic macular edema | The effect of vitamin D supplementation along with intravitreal injection of bevacizumab in the treatment of patients with diabetic macular edema and vitamin D deficiency | IRCT20240411061466N1 |
| Vitamin D supplementation in metabolic syndrome | Effect of vitamin D supplementation on lipid profile among patients with metabolic syndrome | IRCT20240215061017N1 |
| Response to Different Doses of Vitamin D Supplementation in Individuals with Obesity: A Randomized Clinical Trial | Vitamin D deficiency in individuals with obesity, with and without diabetes: association with genetic and non-genetic factors and response to different forms of supplementation | RBR-5h255qr |
| Effect of vitamin D supplementation in term infants | Effect of Vitamin D Supplementation in Healthy Term Infants: A Randomized Double-Blinded Placebo Controlled Trial | TCTR20240405002 |
| The effectiveness of vitamin D supplementation on schizophrenia symptoms | The effectiveness of vitamin D supplementation on schizophrenia symptoms | IRCT20231109060002N1 |
| Vitamin D and Liver Health in North India | A randomised controlled trial of vitamin D supplementation on leukocyte telomerase length and telomerase activity in obese Individuals from north Indian with non-alcoholic fatty liver disease. - VITD-NAFLD | CTRI/2023/11/060045 |
| Effect of vitamin D on short-term prognosis of acute ischemic stroke | Effect of vitamin D on short-term prognosis of acute ischemic stroke | IRCT20220702055334N1 |
| The Association Between Human Microbiome and Vitamin D in Chronic Urticaria | The Association Between Human Microbiome and Vitamin D in Chronic Urticaria | NCT05497596 |
| The efficacy of adding vitamin D to sertraline for the treatment of anxiety disorders | Effectiveness of Vitamin D augmentation to Sertraline in treatment of Anxiety Disorders - NIL | CTRI/2024/06/068858 |
| Comparative study of vitamin D vaginal suppository and oral administration on vaginal symptoms in women with breast cancer | Effects of vaginal VS oral administration of Vitamin D on vulvovaginal symptoms in breast cancer survivors: a randomized clinical trial | ISRCTN33082642 |
| The Effects of Vitamin D Supplementation on Patients with Pneumoconiosis: A Randomized Controlled Trial | Applied Basic Research on How Active Vitamin D Regulates Alveolar Macrophage Polarization to Influence the Progression of Pneumoconiosis | ChiCTR2400085305 |
| Prospective Monocentric Registry of Patients Undergoing Vitamin D Treatment at San Raffaele Hospital | Prospective Monocentric Registry of Patients Undergoing Vitamin D Treatment at San Raffaele Hospital | NCT06481111 |
| Investigating the effect of vitamin D on surgical site infection | Investigating the effect of preoperative vitamin D consumption on surgical site infection | IRCT20240419061523N1 |
| The effect of vitamins D and C in the prevention of complex regional pain syndrome in extra-articular distal radius fractures | Effect of vitamin D and C in preventing complex regional pain syndrome (CRPS) in distal extra-articular radius fractures in patients aged 40 to 70 years. | IRCT20240416061506N1 |
| Investigating the effect of vitamin D in the treatment of diabetic foot ulcers | Comparing the high dose and conventional regimen of vitamin D effect on paraclinical factors affecting the healing of diabetic foot ulcer | IRCT20220928056051N4 |
| Effect of Vitamin D Supplementation on Glutathione Peroxidase (GPx) Activity, Interleukin-6 (IL-6) Levels and Clinical Outcomes in Post-COVID-19 Patients | Effect of Vitamin D Supplementation on Glutathione Peroxidase (GPx) Activity, Interleukin-6 (IL-6) Levels and Clinical Outcomes in Post-COVID-19 Patients | NCT06419712 |
| An exploratory randomized, parallel controlled study to evaluate the intervention effect of active vitamin D on skeletal muscle mass and function in patients with sarcopenia on peritoneal dialysis | An exploratory randomized, parallel controlled study to evaluate the intervention effect of active vitamin D on skeletal muscle mass and function in patients with sarcopenia on peritoneal dialysis | ChiCTR2400084107 |
| The effect of Vitamin D3 supplementation on ovulation induction in PCOS patients: a pragmatic, randomized, parallel-controlled, non-inferior study | The effect of Vitamin D3 supplementation on ovulation induction in PCOS patients: a pragmatic, randomized, parallel-controlled, non-inferior study | ChiCTR2300077710 |
| Effect of Curcumin and Vitamin D in patients with Non-alcoholic fatty liver disease | The Combined Effect of Cholecalciferol and Curcumin on metabolic parameters, oxidative stress biomarkers and inflammation in patients with Non-alcoholic fatty liver disease | IRCT20170430033730N7 |
| Diabetes Risk in London and Its Association with Vitamin D by Ethnic Group (DELVE) | Postprandial Glycaemic Response in Different Ethnic Groups in London and Its Association with Vitamin D Status | NCT06241976 |
| Effects of Vitamin D Supplementation on Muscle Function Among Grave's Disease Patients | Effects of Vitamin D Supplementation on Muscle Function Among Grave's Disease Patients | NCT06451016 |
| Impact of Physical Activity and Vitamin D on Osteoarthritic Knee Pain | The Impact of Physical Activity and Vitamin D on Osteoarthritic Knee Pain in Older Obese People | NCT02293889 |
| Vitamin D versus placebo (glucose sachets) on reducing cancer related fatigue and pain in patients of head and neck cancer | Vitamin D versus placebo on reducing cancer related fatigue and pain in patients of head and neck cancer - NIL | CTRI/2024/03/064906 |
| Clinical study protocol of whole-body vibration training combined with vitamin D for the treatment of osteo-sarcopenia | Clinical study protocol of whole-body vibration training combined with vitamin D for the treatment of osteo-sarcopenia | ChiCTR2400082269 |
| A clinical trial to study the effect of vitamin D in improving the symptoms of heartburn and regurgitation in patients with Gastroesophageal reflux disease | Effect of vitamin D and calcium supplementation on the esophageal motor function assessed by manometry in patients with Gastro esophageal reflux disease - A randomized double blinded placebo controlled cross over clinical trial | CTRI/2014/11/005183 |
| PROTECTIVE-D: imPROving the effecTivenEss of vaccinaTion wIth positive mood and Vitamin D | A feasibility randomised controlled trial examining the effect of a positive mood intervention and vitamin D supplementation on the immunological responses to a boosting COVID-19 and/or influenza vaccination in healthy adults | ISRCTN12950625 |
| Role of vitamin D in lung function parameters in children of bronchial asthma | Efficacy and Safety of Oral Vitamin D supplementation on pulmonary function parameters assessed by forced oscillation technique in children with bronchial asthma: A pilot, double blind, randomized trial ? - NA | CTRI/2024/02/062246 |
| Comparison Of Electromyography Results Before And After Vitamin D Treatment In Patients With Carpal Tunnel Syndrome | Comparison Of Electromyography Results Before And After Vitamin D Treatment In Patients With Carpal Tunnel Syndrome | NCT06282640 |
| The effect of oral vitamin D on erectile dysfunction | Comparison of the effect of oral tadalafil with and without vitamin D on the treatment of male erectile dysfunction | IRCT20151123025202N34 |
| Effect of Vitamin D on Skeletal Muscle Function and Qol in Patients With Chronic Intestinal Failure/Insufficiency | Effect of Vitamin D Supplementation on Skeletal Muscle Function and Quality of Life in Patients With Chronic Intestinal Failure/Insufficiency: A Randomised Clinical Trial | NCT06283615 |
| The effect of an additional dose of vitamin D3 supplementation on the rate of cessation and recurrence of preterm labor in women referred to the hospital | The effect of an additional dose of vitamin D3 supplementation on the rate of cessation and recurrence of preterm labor in women referred to the hospital | IRCT20240111060683N1 |
| Vitamin D Influence on Oocyte Donation | Impact of Vitamin D Levels on Ovarian Reserve and Ovarian Response to Controlled Stimulation in Egg Donors | NCT02341365 |
| The effect of Friso Premature on growth, sleep characteristics, Nutritional status parameters and inflammatory markers. | The effect of Friso Premature on growth, sleep characteristics, Nutritional status parameters (DHA, Iron, vitamin D, vitamin A and folic acid), inflammatory markers, and F2-isoprostanes in urine. | NL-OMON25053 |
| The effects of vitamin D supplementation on metabolic factors and obesity indices among omentin gene polymorphism genotypes in women with prediabetes | The effects of vitamin D supplementation on metabolic factors and obesity indices among omentin gene polymorphism genotypes in women with prediabetes | IRCT20100408003664N26 |
| The Effects of Vitamin D Supplementation on Aerobic Fitness in Athletes | The Effects of Vitamin D Supplementation on VO2max in Athletes: a Randomised, Double-blind, Placebo-controlled Trial | NCT02278172 |
| Vitamin D Sulfates in Breastmilk | Vitamin D Sulfates in Breastmilk | NCT06203041 |
| The effects of Vitamin D on risk factors that leads to insulin resistance and glycemic status among Polycystic Ovary patients in a tertiary fertility hospital in Western part of Kenya. | Effects of Vitamin D on predictors of insulin resistance and glycemic status in Polycystic ovary syndrome at Mediheal Fertility Center in Eldoret; Western Kenya | PACTR202401577278397 |
| A Randomized Controlled Trial of Vitamin D Supplementation on Salivary Biomarkers and Cariogenic Oral Microbiome | Effect of Vitamin D Supplementation on Salivary Biomarkers; Certain Proteins and Cariogenic Oral Microbiome for Medical Management of Dental Caries: A Randomized Controlled Trial | NCT06172764 |
| Vitamin D & Levothyroxine Combination Versus Levothyroxine on Lipid Profile in Hypothyroidism | To Compare the Effectiveness of Vitamin D & Levothyroxine Combination Therapy and Levothyroxine Alone on Serum Lipid Profile in Patients With Hypothyroidism | NCT06276205 |
| Effects of vitamin D combined with nerve block in the treatment of postherpetic neuralgia | Effects of vitamin D combined with nerve block in the treatment of postherpetic neuralgia | ChiCTR2400080951 |
| Association of Vitamin D Level and Its Receptor With Endometriosis | Association of Vitamin D Level and Its Receptor With Endometriosis | NCT06289257 |
| Short-term effect of vitamin D supplementation on superoxide dismutase (SOD) andglutathione peroxidase (GPX) | Short-term effect of vitamin D supplementation on superoxide dismutase (SOD) andglutathione peroxidase (GPX) following a high-intensity interval training session in malevolleyball players | IRCT20240212060976N1 |
| Vitamin D With Omega-3 or Metformin in Osteoarthritis | Anti-osteoarthritis Therapeutic Potential of Vitamin D With Omega-3 or Metformin: a Randomized Controlled Clinical Trial | NCT06328426 |
| Impact of Vitamin D Supplementation on Fetomaternal Outcomes in LTBI Pregnant Females | Impact of Vitamin D Supplementation on Fetomaternal Outcomes in Pregnant Females With Latent Tuberculosis Infection: A Randomized Controlled Trial in Lahore-Punjab | NCT06354621 |
| Investigating the effect of standard treatment of three drugs empagliflozin + linagliptin + metformin (trijardi xr) on controlling blood sugar, weight, vitamin D and lipid profile of patients | Effect of standard treatment of three drugs empagliflozin + linagliptin + metformin (trijardi xr) on BMI, lipid profile, vitamin D in type 2 diabetic patients resistant to two drugs metformin + sitagliptin, referring to the endocrinology clinic | IRCT20240215061021N1 |
| Effects of vitamin D on adipokines, inflammatory cytokines and metabolic phenotype | Effects of vitamin D on adipokines, inflammatory cytokines and metabolic phenotype | ChiCTR2400081676 |
| Relationship between Vitamin D and Diabetic Microvascular Complication | EXPLORING THE INTERPLAY BETWEEN VITAMIN D DEFICIENCY, ADVANCEDGLYCATION END PRODUCT AND GENETIC VARIANT OF RAGE GENE IN PATIENTWITH MICROVASCAULAR COMPLICATION: AN INTERVENTIONAL STUDY - nil | CTRI/2024/03/063782 |
| Serum Levels of Vitamin D and IL8 in Patients With Periodontitis | Serum Levels of Vitamin D and IL8 in Patients With Periodontitis: A Case-control Study | NCT06306937 |
| ViDES Trial (Vitamin D Extra Supplementation) | Randomized Trial of Enteral Vitamin D Supplementation in Infants < 28 Weeks Gestational Age or <1000 Grams Birth Weight | NCT05459298 |
| Efficacy and Safety of Topical Vitamin D Analogue in Treatment of Female Pattern Hair Loss | Efficacy and Safety of Topical Vitamin D Analogue in Treatment of Female Pattern Hair Loss | NCT06333600 |
| A study to know whether Vitamin D supplementation can improve the disability due to stroke in 90 days in patients with low levels of vitamin D in blood | A Study of Vitamin D Supplementation on the 90 Days Outcome in Acute Ischemic Stroke Patients and Its Correlation with Vitamin D Levels - NIL | CTRI/2023/11/060377 |
| The clinical effect of vitamin D supplementation adjuvant therapy in allergic rhinitis | The clinical effect of vitamin D supplementation adjuvant therapy in allergic rhinitis | TCTR20230426004 |
| Evaluation Of The Effect Of Chronic Periodontitis Treatment On Changes In Vitamin D Serum Level Before And After Periodontal Treatment | Evaluation Of The Effect Of Chronic Periodontitis Treatment On Changes In Vitamin D Serum Level Before And After Periodontal Treatment | IRCT20240212060975N1 |
| The Effectiveness of Combining Ursodeoxycholic Acid With Vitamin D in Treating Patients With Primary Biliary Cholangitis | Department of Infectious Diseases, People's Hospital of Xinjiang Uygur Autonomous Region | NCT06309589 |
| Investigating the effect of vitamin D on sexual function of women in reproductive age with type 2 diabetes | Investigating the effect of vitamin D supplementation on the sexual function of women in reproductive age with type 2 diabetes in the vitamin D group compared to the placebo group | IRCT20150624022896N3 |
| "Topical application of UV-irradiated ""Vitamin D"" on implant surface during implantation for the evaluation of Osteoprotegerin (OPG) and implant stability: A Randomized control study" | Assessment of Osteoprotegerin (OPG) and implant stability through the Topical application of UV irradiated Vitamin D on implant surface during placement :A Randomized controlled clinical trial - NIL | CTRI/2024/02/063034 |
| The effect of vitamin D injection at birth on the incidence of retinal disorder of prematur infant | The effect of vitamin D injection at birth on the incidence of retinopathy of prematurity | IRCT20110807007244N9 |
| The Effect of Vitamin D Sublingual Spray on Vitamin D3 Levels in the Blood Compared to Other Forms of Vitamin D3 | A Randomised Comparative Study of the Effect of LYL Love Your Life ® sunD3 LYL Micro™ Vitamin D Sublingual Spray on Vitamin D3 Levels in the Blood Compared to Other Forms of Vitamin D3 - Oral Oil Droplets and Capsules | NCT06142136 |
| The effect of vitamin D plus iron vs. vitamin D on bone health and inflammation in women | The effects of vitamin D or iron-vitamin supplementation on bone metabolism and inflammation in 18-40-year women | IRCT201409082365N9 |
| Vitamin D3 (Cholecalciferol) supplement to enhance the immune status after vaccine against SARS-CoV2, A randomized, double-blind, placebo-controlled trial | Vitamin D3 (Cholecalciferol) supplement to enhance the immune status after vaccine against SARS-CoV2, A randomized, double-blind, placebo-controlled trial | TCTR20220804008 |
| Effect of DFDBA, Vitamin D3 Gel and its Combination on Peri- implant health | Evaluation of Dimensional Influence of DFDBA, Vitamin D3 Gel and Combination of DFDBA with Vitamin D3 Gel on Peri-Implant Tissues in Immediate Implants Placed in Maxillary Anterior Region and Its Correlation with Patient Reported Outcome Measures: A Randomised Control Clinical Trial | CTRI/2022/07/044444 |
| The Effect of Giving Dates Milk Fortified with Vitamin D Against Vitamin D Status, Calcium and Linear Growth of Children Age 48-59 Month | The Effect of Giving Dates Milk Fortified with Vitamin D Against Vitamin D Status, Calcium and Linear Growth of Children Age 48-59 Month | TCTR20220727003 |
| Vitamin D levels in preterm babies | Vitamin D levels of the term Small For Date newborns at birth and at 3 month of age after vitamin D supplementation with 2 different doses 400IU v/s 800IU - A Randomized control trial | CTRI/2016/12/007519 |
| Vitamin D Treatment Effect for Atopic Dermatitis in Children | Vitamin D Treatment Effect for Atopic Dermatitis in Children | NCT05523986 |
| To study the effect of Vitamin D supplementation on bone health and physical growth in children 2-5 years of age with subclinical Vitamin D insufficiency | Evaluation of Vitamin D supplementation on bone health and physical growth in children 2-5 years of age with subclinical Vitamin D insufficiency of Haryana, India ââ?¬â?? A community-based Randomized Controlled Trial | CTRI/2022/09/046076 |
| Efficacy of Vitamin D on Vulvovaginal Atrophy in Menopausal Women | Efficacy of Vitamin D on Vulvovaginal Atrophy in Menopausal Women: A Randomized Controlled Trial | TCTR20231107003 |
| The etiology and therapeutic role of vitamin D in children with overactive bladder syndrome | The etiology and therapeutic role of vitamin D in children with overactive bladder syndrome | ChiCTR2200064358 |
| A study on prevention strategies for CKD-SHPT and related complications based on general vitamin D supplementation | A study on prevention strategies for CKD-SHPT and related complications based on general vitamin D supplementation | ChiCTR2200063298 |
| Vitamin D and Omega-3 Hypertension Trial (VITAL Hypertension) | Effect of Vitamin D and Omega-3 Fatty Acids on Blood Pressure and Hypertension | NCT01653678 |
| Effects of Different Doses of Vitamin D on Cancer-related Cognitive Impairment in Patients With Gastrointestinal Tumors | Effect of Different Doses of Vitamin D on Cancer-related Cognitive Impairment in Patients With Gastrointestinal Tumors: a Randomized Controlled Study | NCT05552729 |
| Effect of intralesional vitamin D in treatment of keloid | Comparison of intralesional vitamin D with intralesional triamcinolone acetonide in the treatment of keloids | IRCT20220902055857N1 |
| The influence of Chlorella supplementation on blood vitamin D and vitamin K concentration in healthy adults. | The influence of Chlorella supplementation on blood vitamin D and vitamin K concentration in healthy adults: a randomized, controlled, open-label, parallel-group study. - The influence of Chlorella supplementation on blood vitamin D and vitamin K concentration in healthy adults. | JPRN-UMIN000048945 |
| Risk of vitamin D deficiency in early pregnancy and perinatal depression: a case-control study | Risk of vitamin D deficiency in early pregnancy and perinatal depression: a case-control study | ChiCTR2200062225 |
| Oral Nano Vitamin D Supplementation Efficacy in Inflammatory Bowel Disease | Supplementation Efficacy Comparing the Oral Nano and Conventional Vitamin D in Inflammatory Bowel Disease | NCT05733117 |
| Relationship Between Serum Vitamin D and Outcomes of Liver Transplantation in Cirrhotic Patients Undergoing Liver Transplantation and Effects of Vitamin D Supplementation in Post-transplant Period | Relationship Between Serum Vitamin D and Outcomes of Liver Transplantation in Cirrhotic Patients Undergoing Liver Transplantation and Effects of Vitamin D Supplementation in Post-transplant Period | NCT05568836 |
| GAD-Alum (Diamyd) Administered Into Lymph Nodes in Combination With Vitamin D in Type 1 Diabetes (DIAGNODE-1) | Open Label Pilot Trial in Adults With Recent-onset T1D to Evaluate the Safety, Diabetes Status and Immune Response of GAD-antigen (Diamyd®) Therapy Administered Into Lymph Nodes in Combination With an Oral Vitamin D Regimen | NCT02352974 |
| Effects of Vitamin D-Enriched Mushrooms on Vitamin D Status and Immune Function and Inflammatory Status in Adults | Effects of Vitamin D-Enriched Mushrooms on Vitamin D Status and Immune Function in Adults | NCT05559112 |
| Effects of Vitamin D on the cardiovascular autonomic functions of subjects who are working in High Altitude Areas, in excess of 15000ft, for 3 to 4 months. This study will shed light on the Autonomic Nervous System, a specialized system of nerves that has profound effects on Heart. | EFFECT OF VITAMIN D SUPPLEMENTATION ON CARDIOVASCULAR AUTONOMIC FUNCIONS IN SUBJECTS IN HIGH ALTITUDE : A RANDOMIZED CONTROL TRIAL | CTRI/2022/07/044289 |
| A comparison of the absorption of Vitamin D with and without pollen | A comparison of the absorption of ergocalciferol with and without pollen: a randomised controlled trial | ISRCTN99745836 |
| A study to evaluate the effect of family based educational intervention on haemoglobin,calcium and vitamin D status, mothers outcomes and childrens outcomes among pregnant women at Thiruvallur district, Tamil Nadu. | A study to evaluate the effectiveness of family focused experiential learning intervention on micronutrients, maternal and infant outcomes among rural antenatal women at Thiruvallur district, Tamil Nadu. | CTRI/2022/09/045547 |
| Combined Microneedling With Either 1% Lactic Acid Solution or Vitamin D3 or Triamcinolone Acetonide in The Treatment of Alopecia Areata | Comparative Study of Combined Microneedling With Either 1% Lactic Acid Solution or Vitamin D3 or Triamcinolone Acetonide in The Treatment of Alopecia Areata | NCT06327581 |
| The Impact of Vitamin D Supplementation on Pregnant Women With the Risk of GDM | The Impact of Vitamin D Supplementation on Gestational Diabetes Mellitus Risk in Pakistani Females: A Randomized Controlled Trial. | NCT06139133 |
| ASSESSMEMT OF VITAMIN D DEFICIENCY AND ITS SUPPLEMENTATION IN MASTALGIA PATIENTS | A PROSPECTIVE INTERVENTIONAL STUDY FOR ASSESSMENT OF ROLE OF VITAMIN D DEFICIENY AND ITS SUPPLEMNTAION IN MASTALGIA | CTRI/2023/11/059708 |
| Effect of barley bread fortified with vitamin D in patients with type 2 diabetes | Comparing the effectiveness of barley bread enriched with vitamin D microcapsules on serum vitamin D levels, cardiometabolic indices, and kidney function in people with type 2 diabetes. | IRCT20221203056695N1 |
| Evaluation of the Relationship of Vitamin D and Vitamin D Binding Protein with Disease Severity in Pediatric Sars-CoV2 | Evaluation of the Relationship of Vitamin D and Vitamin D Binding Protein with Disease Severity in Pediatric Sars-CoV2 | NCT05598957 |
