| Effect of intravenous vitamin B12 in decreasing postoperative pain | Effect of intravenous vitamin B12 on postoperative analgesia-A prospective, randomized, double blind, controlled study. | CTRI/2021/07/034615 |
| Effects of tolerable high dose of Vitamin B12, B6 & Folate intake on Behavioral and psychological symptoms & Quality of life in patients with Alzheimer's disease | Effects of tolerable high dose of Vitamin B12, B6 & Folate intake on Behavioral and psychological symptoms & Quality of life in patients with Alzheimer's disease | IRCT20211105052972N1 |
| Is sublingual vitamin B12 preparations as effective as oral vitamin B12 preparations for the treatment of vitamin B12 deficiency? | Efficacy of sublingual versus oral vitamin B12 supplementation for the treatment of vitamin B12 deficiency -A randomized open label study | CTRI/2022/01/039743 |
| Effect of Phonophoresis With Vitamin B12 on CTS | Effectiveness of Phonophoresis With Vitamin B12 on Patients With Mild to Moderate Carpal Tunnel Syndrome: A Randomized Controlled Trial | NCT05260593 |
| Effect of vitamin B12 on pain and psychological symptoms of Fibromyalgia patients | Investigating the effect of vitamin B12 on disease severity, pain intensity and psychological symptoms of Fibromyalgia patients referred to fibromyalgia clinic of Razi hospital | IRCT20200920048782N1 |
| Randomized, placebo-controlled, double-blind study to evaluate the influence of a combination product with L-arginine, folic acid, vitamin b6 and vitamin b12 on endothelial function in people with mild to moderate blood pressure elevation. | Randomized, placebo-controlled, double-blind study to evaluate the influence of a combination product with L-arginine, folic acid, vitamin b6 and vitamin b12 on endothelial function in people with mild to moderate blood pressure elevation. | DRKS00010276 |
| MTHFR Mutation and Concentration of B12,Folic Acid,Homocysteine and HS CRP in the Blood of Pregnant Women With GDM. | MTHFR Gene Mutation C6777T and Concentration of Vitamin B12, Folic Acid, Homocysteine and High Sensitive CRP in the Blood of Pregnant Women With Gestational Diabetes Mellitus. | NCT04952324 |
| Study of outcome of Prednisolone with Vitamin B12 versus without steroids in the treatment of west syndrome | A Randomized Control Trial on the effectiveness of Prednisolone with Vitamin B12 and Prednisolone alone in the treatment of West Syndrome - PVB12WS | CTRI/2020/10/028214 |
| A clinical study to evaluate the effect of Methylcobalamine nasal spray in patients with Vitamin B12 deficiency. | A prospective, randomized, open label, clinical study to evaluate safety and effectiveness of novel methylcobalamin nasal spray compared to oral methylcobalamin in the treatment of subjects with vitamin B12 deficiency. | CTRI/2020/10/028371 |
| Benefits of vitamin thiamine, vitamin C,vitamin B12 in children with severe infection - RCT | Randomised control study - To study effect of metabolic resuscitation with thiamine & vitamin C, B12 in pediatric severe sepsis | CTRI/2020/11/028825 |
| Vitamin B12 Biomarker Responses to Supplementation | A Dose-finding Randomized Trial of Vitamin B12 Supplementation: Biomarker Responses and Implications for Dietary Recommendations. | NCT04731948 |
| study with the tea fortified with vitamin B12 & Folic acid to correct deficiency of these vitamins | clinical study with the tea fortified with vitamin B12 & Folic acid to correct deficiency of these vitamins in women of reproductive age - Tea Trial 1C | CTRI/2021/02/031463 |
| SUBLINGUAL TABLET OF VITAMIN B12 FOR TREATMENT OF DEFICIENCY | SUBLINGUAL VITAMIN B12 FOR TREATMENT OF VITAMIN B12 DEFICIENCY IN CHILDREN | CTRI/2021/03/031845 |
| 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 |
| The Impact of vitamin B12 supplementation on the efficacy of conventional drug in the management of pcos patient | prevalence of vitamin B12 deficiency among Indian women with poly cystic ovary syndrome (PCOS) and the impact of vitamin B12 supplementation on the efficacy of conventional drugs in the management of women with pcos - PCOS | CTRI/2018/06/014570 |
| Assessment of the effect of metformin on serum levels of homocysteine, folic acid, and vitamin B12 in patients with type 2 diabetes mellitus | Comparison of serum levels of homocysteine, folic acid, and vitamin B12 in patients with type 2 diabetes mellitus before and after treatment with metformin | IRCT2015011614717N2 |
| Comparison of Oral and Parenteral Therapy in vitamin B12 deficiency in children | Comparison of efficacy of parental and oral Treatment for nutritional vitamin b12 deficiency in children | CTRI/2021/03/032064 |
| Fortification of Tea with Vitamin B12 & Folic Acid to correct their deficiency | Clinical Study with Tea Fortified with Vitamin B12 & Folic Acid to correct deficiency of these Vitamins in women of reproductive age. - Fortified Tea Trial | CTRI/2021/03/032353 |
| Metformin Usage Index and Vitamin B12 Status in Egyptian Type 2 Diabetic Patients | Metformin Usage Index and Vitamin B12 Status in Egyptian Type 2 Diabetic Patients : A Case Control Study . | NCT04882332 |
| A randomized controlled study on treating chronic pharyngitis by Lianquan acupoint injection of vitamin B12 and dexamethasone | A randomized controlled study on treating chronic pharyngitis by Lianquan acupoint injection of vitamin B12 and dexamethasone | ChiCTR2100046348 |
| A randomized controlled study on treating chronic pharyngitis by Lianquan acupoint injection of vitamin B12 and dexamethasone | A randomized controlled study on treating chronic pharyngitis by Lianquan acupoint injection of vitamin B12 and dexamethasone | ITMCTR2100004844 |
| 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 |
| Vitamin B12 Dose Escalation Trial in Pregnancy | Single-blinded, Stratified, Multiple Ascending Dose Trial to Assess Pharmacokinetics and Identify Optimal Dose of Vitamin B12 in Pregnancy in Tanzania | NCT05426395 |
| Vitamin C, Thiamine, Cyanocobalamine, Pyridoxine and Hydrocortisone in Sepsis | Difference in Mortality and Evolution in Septic Patients Treated With Vitamin C, Tiamine, Cyanocobalamine, Pyridoxine and Hydrocortisone Treated at the ICU of General Hospital Zone 11 IMSS Piedras Negras Coahuila. | NCT04197115 |
| Efficacy of two doses( 500mcg and 1000mcg) of Vitamin B12 supplementation on glycemic control in poorly controlled type 2 diabetic patients with hyperhomocysteinemia | Efficacy of two doses(500mcg and 1000mcg) of Vitamin B12 supplementation on glycaemic control in poorly controlled type 2 Diabetic patients with hyperhomocysteinemia | CTRI/2022/08/044720 |
| Study to compare the efficacy and safety of novel Methylcobalamin Spray with Sublingual Methylcobalamin Tablet in treatment of subjects with vitamin B12 deficiency. | A Prospective, Open-Label, randomized, Clinical study to compare the efficacy and safety of novel Methylcobalamin Nasal Spray with Sublingual Methylcobalamin Tablet in the treatment of subjects with vitamin B12 deficiency. | CTRI/2024/04/066019 |
| 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 |
| Evaluation of the effect of vitamin B12 on neuropathy in diabetic patients of Razi Hospital in Birjand in 2023 | Investigating the effect of vitamin B12 on the neuropathy of diabetic patients | IRCT20190618043934N24 |
| Relationship Between Vitamins and Radiologic Stage in Knee Osteoarthritis | Investigation of the Relationship Between Vitamin B12, Folic Acid and 25 OH D Levels and Radiologic Stage in Knee Osteoarthritis | NCT06267053 |
| Effect of oral vitamin B12 supplementation on human gut microbiome | Effect of oral vitamin B12 supplementation on human gut microbiome - BTS2001/23 - MEDICE Study Code 6630-4200-43 | DRKS00033546 |
| Study on the causes of serum Vitamin B12 level increase after bariatric surgery | Study on the causes of serum Vitamin B12 level increase after bariatric surgery | ChiCTR2000038232 |
| To evaluate the effect of intravenous vitamin B12 on chronic post surgical pain after modified radical mastectomy | Effect of perioperative intravenous vitamin B12 on chronic post surgical pain after modified radical mastectomy:A prospective randomiized double blind control study - Nil | CTRI/2024/01/062168 |
| vitamin B12 supplementation in patients with diabetic peripheral neuropathy | The effects of vitamin B12 supplementation in patients with diabetic peripheral neuropathy and low serum vitamin b12 | IRCT20210925052566N3 |
| SERUM VITAMIN B12 LEVELS IN PATIENTS WITH HEMORRHAGIC VS ISCHEMIC CEREBROVASCULAR EVENT. | SERUM VITAMIN B12 LEVELS IN PATIENTS WITH HEMORRHAGIC VS ISCHEMIC CEREBROVASCULAR EVENT. | NCT06190314 |
| Determination the effect of calcium and vitamin B12 co-supplementation on some anthropometric indices, blood glucose, lipid profile and blood pressure in Individuals with metabolic syndrome | Determination the effect of calcium and vitamin B12 co-supplementation on some anthropometric indices, blood glucose, lipid profile and blood pressure in Individuals with metabolic syndrome: a randomized triple-blind controlled clinical trial | IRCT20230416057916N1 |
| "ESPED survey ""Vitamin B12 deficiency in the first year of life""" | "ESPED survey ""Vitamin B12 deficiency in the first year of life""" | DRKS00032822 |
| Vitamin B12 infusion as an adjuvant to postoperative analgesia | Vitamin B12 infusion as an adjuvant to postoperative analgesia in patients undergoing lowerabdominal surgeries - NIL | CTRI/2024/04/066290 |
| Evaluation of the effect of vitamin B12, folic acid, and vitamin E on Multiple sclerosis amelioration | Evaluation of the effect of coincident supplementation of vitamin B12, folic acid, and vitamin E on improvement of clinical signs and serum inflammatory markers in patients with Multiple sclerosis | IRCT20230913059422N1 |
| Effectiveness of Fortification With Folic Acid and Vitamin B12 Among Teenage Girls | Does Small Scale Cereal-based Fortification Hold the Key to Improved Micronutrient Status in Ethiopia? The Case of Folic Acid and Vitamin B12 in Teenage Girls in Arba Minch, Ethiopia | NCT06100146 |
| A clinical trial to study the effect of two different routes (nasal and parenteral) of administration of a drugs, vitamin B12, in patients with macrocytic anemia | Efficacy and safety of nasal vitamin B12 supplementation in macrocytic anemia: A randomized clinical trial - ENVMA | CTRI/2023/09/058162 |
| Effect of vitamin B12 supplementation on anthropometric indices in children with severe acute malnutrition (SAM) aged 1 month to 60 month in a nutritional rehabilitation center - a randomized control trial | A Randomized Control Double Blind Parallel group without Placebo Clinical Trial to look the antropometric outcome of Vitamin B12 supplementation in children with severe acute malnutrition(SAM) aged b1 month to 60 months in Nutritional Rehabilitation Center - NIL | CTRI/2023/09/057950 |
| Oral vs intramuscular administration of vitamin B12 for the treatment of children with vitamin B12 deficiency | Daily oral v/s weekly intramuscular vitamin B12 supplementation for nutritional megaloblastic anemia in children aged 5-14 years: An open labelled Randomized Controlled Trial - nil | CTRI/2023/08/056877 |
| Nutritional Assessment & Intervention through Dietary Counselling with Lifestyle Modification in Vitamin B12 deficient Diabetic Patients its Correlation with Peripheral Neuropathy. | Counselling with Lifestyle Modification in Vitamin B12 deficient Diabetic Patients, its Correlation with Peripheral Neuropathy - NIL | CTRI/2023/07/055208 |
| Vitamin B12 vs B3 for Nerve Regeneration and Functional Recovery After Pediatric Traumatic Brain Injury | Vitamin B12 vs B3 for Nerve Regeneration and Functional Recovery After Pediatric Traumatic Brain Injury | NCT05958277 |
| Megadose of Hydroxocobalamin for the Treatment of Pernicious Anemia | Megadose of Hydroxocobalamin (Vitamin B12) for the Treatment of Pernicious Anemia | NCT03372447 |
| Comparison of oral and injectable route of vitamin B12 therapy in children with Vitamin B12 deficiency anaemia. | Efficacy of oral verses parenteral vitamin B12 therapy in children with Vitamin B12 deficiency anaemia | CTRI/2023/04/051249 |
| Effect of Vitamin B12 oral spray | A study to evaluate the efficacy and safety of oral spray formulation of Vitamin B12: A pilot study | CTRI/2023/06/054348 |
| Epigallocatechin Gallate and Other Antural Compounds in HPV Infections | Treatment With Epigallcoatechin Gallate, Hyaluronic Acid, Folic Acid and Vitamin B12 in Women HPV Positive With Abnormal Cytology Tests | NCT06098456 |
| The Effect of the Association EGCG, Folic Acid and Vitamin B12 in Preventing the Persistence of HPV Infection. | A Pilot Study to Test the Effect of the Association of Epigallocatechin Gallate (EGCG), Folic Acid and Vitamin B12 in Preventing the Persistence of Human Papilloma Virus (HPV) Infection. | NCT06285357 |
| Bioavailability of Vitamin B12 in Bread Using Fermented Faba Bean as B12 Source in Healthy Volunteers (BeanBread) | Bioavailability of Vitamin B12 in Bread Using Fermented Faba Bean as B12 Source in Healthy Volunteers (BeanBread) | NCT06096298 |
| A study to see change in serum b12 level by parenteral and oral vitamin b12 supplemention | A study to compare changes in serum vitamin b12 levels by oral and parenteral regimens in children with vitamin b12 deficient children - NIL | CTRI/2024/05/067371 |
| 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 |
| Vitamin B12 Status and Its Impact on Chronic Haemodialysis Patient | Vitamin b12 Deficency and Its Impact on Chronic Haemodialysis Patient and Its Effect on Anemia and Neuropathy | NCT06441721 |
| Protective effect of sublingual tablets of vitamin B12 and saffron against neurotoxicity of oxaliplatin in patients with colorectal and gastric cancer | Evaluation of protective effect of sublingual tablet of vitamin B12 and saffron for prevention neurotoxicity induced by capecitabin + oxaliplatin (XELOX) and modified 5-fluorouracil + folinic acid + oxaliplatin (mFOLFOX6) regimens in patients with colorectal and gastric cancer | IRCT20200408046990N10 |
| Study with tea fortified with vitamin B12 and Folic acid to correct deficiency of these vitamins | Randomized Controlled Trials (RCT) Using Tea Fortified with Folate and Vitamin-B12 to Correct Deficiency of These Vitamins in Women of Reproductive Age. | CTRI/2022/10/046289 |
| Effect of vitamin B12 supplementation on bone metabolic markers in adults with decreased kidney function | Effect of vitamin B12 supplementation on bone metabolic markers in adults with decreased kidney function - Effect of vitamin B12 supplementation on bone metabolic markers in adults with decreased kidney function | JPRN-UMIN000049710 |
| 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 |
| Best method for giving Vitamin B12 to a child | â??Comparison of the efficacy of Intra muscular and Oral Treatment for Nutritional Vitamin B12 deficiency in children: A Randomised Control Trialâ?? | CTRI/2023/03/051133 |
| 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 |
| Comparing high dose versus standard dose vitamin B12 in premature babies- a clinical trial | Comparison of high dose vitamin B12 versus standard dose vitamin B12 supplementation in preterm neonates born at 28 to 33 weeks of gestation- a randomized controlled trial - NIL | CTRI/2025/06/089254 |
| A randomized clinical study to evaluate efficacy and safety of Nutrify Genies Capsule v/s commercially available Vitamin B12 in preventing diabetic neuropathy in participants who have type 2 diabetes. | A randomized, open label, clinical trial to investigate efficacy and safety of NG02 in preventing the progression of diabetic neuropathy in type 2 diabetes patients. - NIL | CTRI/2025/06/089086 |
| THE IMPACT OF VITAMIN B12 TREATMENT ON EJACULATORY FUNCTIONS IN MEN: SYMPTOMATIC RELIEF AND IMPROVED OUTCOMES | THE IMPACT OF VITAMIN B12 TREATMENT ON EJACULATORY FUNCTIONS IN MEN: SYMPTOMATIC RELIEF AND IMPROVED OUTCOMES | NCT07036497 |
| Comparing the Effectiveness of oral Vitamin B12 and Injectable for Treating Children with neurocutaneous infantile B12 deficiency syndrome | Comparing the efficacy of oral versus injectable vitaminB12 in patients with Neurocutaneous Infantile VitaminB12 deficiency Syndrome (NIBS): A RandomizedControlled Trial - NIL | CTRI/2025/06/088909 |
| Oral Sucrosomial® Vitamin B12 in the Management of B12 Deficiency Among Metformin-Treated Type 2 Diabetes Patients | Oral Sucrosomial® Vitamin B12 in the Management of B12 Deficiency Among Metformin-Treated Type 2 Diabetes Patients: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial | NCT06983223 |
| A Study to See if a Combination of Vitamins That is Injected Into a Muscle is as Good and Safe as a Vitamin That is Taken by Mouth | Efficacy and Safety of a Parenterally Administered Fixed Vitamin Combination (Vitamin B6, B12 and Folic Acid) On Vitamin B12 Status and Methylation Capacity in Cobalamin Deficiency Compared to Oral Vitamin B12 Supplementation | NCT07029698 |
| study with the tea fortified with Vit.B12 and Folic acid to correct deficiency of these vitamins. | Clinical study with tea fortified with Vitamin B12 and Folic acid to correct deficiency of these vitamins in women of reproductive age . | CTRI/2025/04/085742 |
| Comparison of efficacy of oral and injectable vitamin B12 in treatment of Vitamin B12 deficiency anemia in Children | AN OPEN LABEL RANDOMISED CONTROLLED TRIAL TO COMPARE THE EFFICACY OF ORAL VS PARENTERAL VITAMIN B12 IN THE TREATMENT OF NUTRITIONAL MEGALOBLASTIC ANAEMIA | CTRI/2025/04/084524 |
| The possible role of folic acid and vitamin B12 in primary nocturnal enuresis. | Interventional Effects of folic acid and Vitamin B12 in Primary Nocturnal Enuresis in children aged 5-16 years: A Randomized, Double-Blind, Placebo-Controlled trial. | PACTR202503801929185 |
| Vitamin B12 deficiency associated oxidative stress during pregnancy | Maternal Vitamin B12 status during pregnancy:Association of low vitamin B12 with markers of oxidative stress- MPO,Ox-LDL and IsoPs - Nil | CTRI/2025/02/081056 |
| A study to test the effectiveness of an oral supplement for nerve pain in Diabetes | The efficacy of combined oral formulation of acetyl-L carnitine, palmitoyl ethanolamide and vitamin B12 in alleviating pain in diabetic neuropathy- A randomised control trial - NIL | CTRI/2025/01/079030 |
| Study on the Improvement of Microcirculation in Patients With Sepsis by Vitamin B6, Vitamin B12 and Vitamin C | Study on the Improvement of Microcirculation in Patients With Sepsis by Vitamin B6, Vitamin B12 and Vitamin C | NCT06749756 |
| The assessment of study is by comparing vitamin b12 and benzydamine hydrochloride spray in radiation mucositis patients | Comparative Assessment of Efficacy of Vitamin B12 spray versus Benzydamine Hydrochloride spray in Prevention and Management of Radiation Mucositis-A Randomized Clinical Trial - NIL | CTRI/2024/11/076607 |
| comparing the efficacy and safety of a new Vitamin B 12 Nasal Spray vs Oral Supplement in treating Vitamin B 12 Deficiency | A prospective, open-label, randomized, comparative clinical trial to assess theefficacy and safety of a novel Methylcobalamin Nasal Spray (NASO B12) or oral B12 supplementation in the treatment of subjects with vitamin B12 deficiencyas well as to evaluate the duration of efficacy - Nill | CTRI/2024/10/075367 |
| A COMPARITIVE STUDY OF TWO DIFFERENT O.1 % VITAMIN B12 DYE FOR STRENGTHENING OF CORNEA IN THIN AND CONICAL CORNEAS | A prospective clinical Study to evaluate the Safety and Efficacy of two different 0.1% Riboflavin used in Corneal Cross-linking treatment for patients with Keratoconus | CTRI/2019/11/021841 |
| Treatment of vitamin B12 deficiency in children | Low versus high oral dose of vitamin B12 for treatment of macrocytic anemia: a randomised controlled trial in a District hospital - Nil | CTRI/2024/10/074903 |
| Effect of a New Formulation of Vitamin B12 on Physical and Mental | Evaluation of the Effect of a New Formulation of Vitamin B12 on Physical and Mental Performance in Trained Cyclists. | NCT06639789 |
| Study of Vitamin B12 Metabolism in Children With Sickle Cell Disease Exposed to MEOPA | Study of Vitamin B12 Metabolism in Children With Sickle Cell Disease Exposed to MEOPA , a Prospective Study at Reims University Hospital | NCT06581900 |
| A study to compare efficacy of oral vs intramuscular vitamin B12 in resolution of tremors in children with infantile tremor syndrome | Efficacy of intramuscular Vitamin B12 versus oral vitamin B12 in children with Infantile tremor syndrome- A Pilot Randomized Clinical Trial - NIL | CTRI/2024/07/071373 |
| Assessing the relationship between the dose of vitamin B12 administered and its absorption in the intestine in normal humans | Dose-dependency of vitamin B12 on its intestinal absorption in normal humans | CTRI/2022/06/043417 |
| Oral versus IV vitamin B12 vitamin B12 deficiency | Comparison between oral versus intravenous vitamin B12 supplementation in vitamin B12 deficient patients - COURAGE-12 | CTRI/2020/06/026225 |
| Clinical effect of vitamin B12 eye drops on myopia in children | Randomized controlled study on the effect of vitamin B12 eye drops on the progression of myopia in children | ChiCTR1800016504 |
| Effect of Preoperative Intervention With Folic Acid and Vitamin B12 on Postoperative Neurobehavioral Changes in Children | Effect of Preoperative Intervention With Folic Acid and Vitamin B12 on Postoperative Neurobehavioral Changes in Children | NCT04456985 |
| Effect of the Folic Acid and Vitamin B12 Supplements with Metformin on the Plasma Homocysteine Levels in Women with Polycystic Ovary Syndrome | Effect of the Folic Acid and Vitamin B12 Supplements with Metformin on the Plasma Homocysteine Levels in Women with Polycystic Ovary Syndrome | IRCT201108171760N14 |
| Clinical trial to assess impact of iron, folic acid and Vitamin B12 supplementation on anaemic adolescent girls | To assess the impact of Vitamin B12 supplementation with Iron and Folic Acid on anaemic adolescent girls | CTRI/2011/12/002217 |
| Evaluation of a urinary test to assess vitamin B12 status in older people | Urinary MethylMalonic Acid (MMA): a functional biomarker of B12 status applicable to large scale surveys: Part 1 - the cross sectional study | ISRCTN83921062 |
| Is vitamin B12 tablets as effective as vitamin B12 injections for the treatment of vitamin B12 deficiency? | Evaluation of etiological profile and comparison of efficacy of oral versus intramuscular vitamin B12 supplementation in subjects with vitamin B12 deficiency | CTRI/2011/11/002146 |
| Phase II study of vitamin B12 and folate supplementation for patients undergoing cisplatin plus pemetrexed therapy. | Phase II study of vitamin B12 and folate supplementation for patients undergoing cisplatin plus pemetrexed therapy. - Phase II study of vitamin B12 and folate supplementation for patients undergoing cisplatin plus pemetrexed therapy. | JPRN-UMIN000006546 |
| Effectiveness of ORAl hydroxocobalamin in treatment of vitamin B12 deficiency with neurological manifestations | Effectiveness of ORAl hydroxocobalamin in treatment of vitamin B12 deficiency with neurological manifestations: a single-centre, prospective, open-label study | ISRCTN92106665 |
| The Health of Newly Arrived Refugees with Vitamin B12 Deficiency | In newly arrived refugees aged 18 and over from Bhutan, Afghanistan and Iran who come to the Migrant Health Service in Adelaide, are symptoms and perception of physical, psychological and general health different in those with and without Vitamin B12 deficiency? | ACTRN12611000758909 |
| Growth and body composition in undernourished children: effect of vitamin B12 supplementation | Growth and body composition in acute severe malnutrition (SAM) in Indian children: effect of vitamin B12 supplementation in a double-blind randomised controlled pilot study | ISRCTN67437725 |
| Study of Pralatrexate With Vitamin B12 and Folic Acid Supplementation for Previously Treated Recurrent or Metastatic Head and Neck Squamous Cell Cancer (HNSCC) | A Multi-Institution Phase II Study of Pralatrexate With Vitamin B12 and Folic Acid Supplementation for Previously Treated Recurrent or Metastatic Head and Neck Squamous Cell Cancer (HNSCC) | NCT01183065 |
| Evaluation of a urinary test to assess vitamin B12 status in older people | Urinary MMA revisited: a functional biomarker of B12 status applicable to large scale surveys. Part 2: The Intervention Study | ISRCTN92541398 |
| Influence of Different Doses of the Vitamin B12 on Recurrent Aphthous Stomatitis | Influence of Different Doses of the Vitamin B12 on Recurrent Aphthous Stomatitis | NCT01127724 |
| The effect of vitamin B12 supplementation on fatigue in IBS and IBS patients. | The effect of vitamin B12 supplementation on fatigue in IBS and IBS patients. - B-VIT study | NL-OMON34980 |
| Breaking the cycle: Intergenerational effects from low vitamin B12 in South Asian women | Breaking the cycle of intergenerational effects from low vitamin B12 in South Asian women: a stratified, randomised trial comparing the efficacy and acceptability of vitamin B12 dietary advice, B12 supplement or placebo | ACTRN12610000262000 |
| A prospective comparison of vitamin B12 supplementation after gastric bypass surgery( sublingual vs. intramuscular) | A prospective comparison of vitamin B12 supplementation after gastric bypass surgery( sublingual vs. intramuscular) | EUCTR2009-014468-20-AT |
| Phase II study of oral vitamin B12 (cobalamin) supplementation with pemetrexed therapy in previously treated patients with advanced non-small cell lung cancer | Phase II study of oral vitamin B12 (cobalamin) supplementation with pemetrexed therapy in previously treated patients with advanced non-small cell lung cancer - Phase II study of oral vitamin B12 (cobalamin) supplementation with pemetrexed therapy | JPRN-UMIN000003180 |
| A study to know the effects of vitamin B12 on energy expenditure in healthy adult men | Role of vitamin B12 in modulating resting and noradrenaline stimulated energy expenditure in healthy adult men | CTRI/2009/091/000770 |
| A study to assess the impact of Vitamin B12 status on nervous system. | Vitamain B12 status and its impact on peripheral neural and autonomic nervous activity and cognition in humans | CTRI/2009/091/000493 |
| Comparison of Vitamin B12 Supplementation to Selective Serotonin Reuptake Inhibitor (SSRI) Versus SSRI Antidepressant Treatment Alone | Comparison of Vitamin B12 Supplementation and SSRI to SSRI Monotherapy in Treating Depression With Low Normal B12: A Randomized Open Label trialComparison of Vitamin B12 Supplementation to SSRI Versus SSRI Antidepressant Treatment Alone | NCT00939718 |
| Impact of different modes of vitamin B12 supplementation on subclinical vitamin B12 deficiency on sensory, motor and cognitive function among older people | Impact of different modes of vitamin B12 supplementation on subclinical vitamin B12 deficiency on sensory, motor and cognitive function among older people: a community based prospective cluster randomised controlled double blind interventional trial | ISRCTN02694183 |
| Effect of vitamin B12 fortified nutrient bar supplementation in Indian children | Efficacy of vitamin B12 fortified food supplement in Indian children | CTRI/2012/07/002799 |
| Effect of vitamin B12 infusion in prevention of nitrous oxide- induced homocysteine increase | Effect of vitamin B12 infusion in prevention of nitrous oxide- induced homocysteine increase in patients undergoing general anesthesia for elective surgery | IRCT201209226803N3 |
| To determine whether taking low doses of daily folic acid and vitamin B12 capsules for 2 years can improve bone health in coeliac disease patients | A double-blind, randomised, placebo controlled trial to investigate the effect of combined folic acid (400 µg) and vitamin B12 (10 µg) supplementation for 2 years on bone mineral density within coeliac disease patients | ISRCTN18076645 |
| Supplementation of vitamin B12 in young men and women, pre-conception, improves the B12 status of their newborns | Maternal vitamin B12, folate and homocysteine as determinants of inter-generational programming of diabesity: the Pune Intervention Study | ISRCTN32921044 |
| Clinical trial of vitamin B12 treatment for impaired awareness of hypoglycemia accompanied with autonomic dysfunction in type 1 diabetes. | Clinical trial of vitamin B12 treatment for impaired awareness of hypoglycemia accompanied with autonomic dysfunction in type 1 diabetes. - Clinical trial of vitamin B12 treatment for impaired awareness of hypoglycemia accompanied with autonomic dysfunction in type 1 diabetes. | JPRN-UMIN000020704 |
| Vitamin B12 in chronic hepatitis C | The effect of vitamin B12 supplementation on liver enzymes and viral load in nonresponding or early relapsing cases of chronic HCV hepatitis | IRCT201511274226N4 |
| Vitamin B12 for Carpal Tunnel Syndrome | Perineural Injection Therapy With Vitamin B12 for Carpal Tunnel Syndrome | NCT03802422 |
| Vitamin B 12 in the treatment of chronic hepatitis C | The effect of vitamin B12 supplementation to the standard therapeutic regimen on sustained viral response in genotype 1 chronic HCV infection | IRCT201508064226N3 |
| B12 Effect of supplementation and pulmonary rehabilitation in aerobic performance in patients with chronic obstructive pulmonary disease: a randomized study | Eight-week effect of physical training with vitamin B12 supplementation on functional capacity in patients with Chronic Obstructive Pulmonary Disease (COPD ) | RBR-55f97c |
| Vitamin B12 Supplement to Prevent Cognitive Decline | | NCT02457507 |
| Effect of oral high dose Vitamin B12 on pregnancy outcomes | A Randomized double blind placebo controlled trial to investigate the effect of preconceptional Vitamin B12 supplementation on the pregnancy outcomes in Haroli block in Himachal Pradesh | CTRI/2015/05/005787 |
| Use of special yoghurt to improve vitamin B12 status. | Improving vitamin B12 status through vitamin B12 producing probiotic fortified yoghurt | CTRI/2015/04/005703 |
| Role of Health and Nutritional Status on Mental health of Elderly with Focus on Dementia | Intervention studies with vitamin B12 and omega3 fatty acids on nutrition and cognition levels in elderly with Mild Cognitive Impairment - VIBCOG Trial | CTRI/2015/03/005602 |
| Vitamin B12 Supplementation Study | Assessment of Functional Vitamin B12 Deficiency in Mexican Women | NCT00826657 |
| Vitamin B12, Neurodevelopment and Growth in Nepal | The Effect of Vitamin B12 Supplementation in Nepali Infants on Growth and Development | NCT02272842 |
| Whey protein isolate as a source of vitamin B12 and to lower homocysteine and methylmalonic acid in older person | A randomised controlled trial evaluating whey protein as a source of vitamin B12 and its effects on serum B12, holotranscobalamin (HTC) and methylmalonic acid levels in the older person | ACTRN12614000159651 |
| Oral vitamin B12 supplementation after total gastrectomy due to gastric cancer | A study evaluating the clinical and laboratory efficacy of oral vitamin B12 supplementation in patients who underwent total gastrectomy due to gastric cancer | ACTRN12614000107628 |
| Impact of Vitamin B12 Replacement on Epogen Dosing and Improvement of Quality of Life in Hemodialysis Patients | Impact of Vitamin B12 Replacement on Epogen Dosing and Improvement of Quality of Life in Hemodialysis Patients | NCT01876732 |
| Phase II study of vitamin B12 and folate supplementation for patients undergoing chemotherapy with pemetrexed. | Phase II study of vitamin B12 and folate supplementation for patients undergoing chemotherapy with pemetrexed. - Phase II study of vitamin B12 and folate supplementation for patients undergoing chemotherapy with pemetrexed. | JPRN-UMIN000010570 |
| Vitamin B12 Acceptance and Biomarker Response Study | Acceptance and Biomarker Response With Oral vs. Intramuscular Supplementation of Vitamin B12 in Primary Care | NCT01832129 |
| Recombinant Human Granulocyte Macrophage Colony Stimulating Factor(rhGM-CSF) Treating Oral Mucositis | A Open,Randomized Phase II Trial Comparing Local Use of rhGM-CSF and Compound Vitamin B12 Solution to Compound Vitamin B12 Solution Alone Treating Chemoradiotherapy-induced Oral Mucositis in Patients With Primary Nasopharyngeal Carcinoma | NCT01806272 |
| Vitamin B12 Supplementation During Pregnancy | Role of Vitamin B12 Supplementation During Pregnancy and Postpartum to Reduce Nutritional Anemia and Improve Immunity in Bangladeshi Women and Their Infants | NCT01795131 |
| Effect of vitamin B12 on reducing fatigue, depression, anxiety and stress in hemodialysis patients | The effect of vitamin B12 supplementation on levels of fatigue, depression, anxiety and stress hemodialysis patients | IRCT2012122611892N1 |
| A randomized controlled trial on primary school children and mothers to assess the efficacy of a micronutrient fortified rice (iron, folic acid, vitamin B12) to improve iron stores | Long term (2 years) efficacy of indigenously developed micronutrient fortified rice (fortified with iron, vitamin B12 and folic acid) in improving iron stores in school children and their mothers; process standardization to match the physical characteristics of fortified rice kernels (FRK) with commercial rice varieties and storage stability. | CTRI/2019/04/018567 |
| Efficacy of vitamin B12 injection in diabetic neuropathy | Efficacy of vitamin B12 acupoint injection in diabetic neuropathy: a single-blinded randomized controlled trial | TCTR20140212002 |
| Vitamin B12 during pregnancy | Vitamin B12: Its bioavailability and effect in a balanced protein supplement on sulfur amino acid and methyl transfer kinetics in Indian pregnancy - - | CTRI/2016/01/006578 |
| Effects of 5-Methyltetrahydrofolate and Vitamin B12 Supplemetation on Red Cell Membrane in Children With Cystic Fibrosis | Preliminary Evidences of Active Form of Folic Acid and Vitamin B12 Supplementation to Ameliorate Cell Membrane in Children With Cystic Fibrosis | NCT00730509 |
| Effect of Homocysteine-lowering Therapy With Folic Acid, Vitamin B12, and Vitamin B6 on Endothelium-dependent Vasodilatation of Forearm Resistance Vessels in Patients With Coronary Heart Disease | Effect of Homocysteine-lowering Therapy With Folic Acid, Vitamin B12, and Vitamin B6 on Endothelium-dependent Vasodilatation of Forearm Resistance Vessels in Patients With Coronary Heart Disease | NCT00693589 |
| Comparison of the efficacy and tolerability of a vitamin administration as a syringe with an intake as a tablet | EFFICACY AND SAFETY OF A PARENTERALLY ADMINISTERED FIXED VITAMIN COMBINATION (VITAMIN B6, B12 AND FOLIC ACID) ON VITAMIN B12 STATUS AND METHYLATION CAPACITY IN COBALAMIN DEFICIENCY COMPARED TO ORAL VITAMIN B12 SUPPLEMENTATION - EASYVit | EUCTR2018-003619-23-DE |
| Transdermal Iontophoresis of Vitamin B12 Under Three Different Skin Preparations | Novel Skin Preparation Approaches for Transdermal Delivery by Iontophoresis of a Low Molecular Weight, Positively Charged Compound (Vitamin B12) to the Systemic Circulation | NCT04027959 |
| Preoperative Vitamin B12 and Folic Acid on POCD in Elderly Non-cardiac Surgical Patients | Effect of Preoperative Vitamin B12 on Post Operative Cognitive Dysfunction in Elderly Patients Undergoing Non-cardiac Surgery: A Multi-Center, Prospective, Randomized, Double-blinded, Controlled Clinical Trial | NCT03485404 |
| Metformin and vitamin B12 deficiency in patients with gestational diabetes mellitus. | To determine an association between metformin use in gestational diabetes mellitus and vitamin B12 deficiency | ACTRN12620000397910 |
| Oral Vitamin B12 Supplementation and Cognitive Performance in Elderly People | The Effect of Oral Vitamin B12 Supplementation on Cognitive Performance in Elderly People: the Brain12 Study | NCT00111267 |
| Oral disintegrated tablet safety and tolerability in post-gastrectomy Indian patients | An open label, prospective three-arm randomized, non-comparative study on efficacy and tolerability of orally disintegrating strip, oral tablets and intravenous administration of Vitamin B12, in post-gastrectomy Indian patients | CTRI/2020/02/023450 |
| 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 |
| Effect of Vitamin B12 supplementation in diabetic patients | Effect of Vitamin B12 supplementation on glycaemic control in uncontrolled hyperhomocysteinemic type 2 diabetic patients | CTRI/2020/01/022711 |
| Evaluation of the Clinical Efficacy and Safety of Dapoxetine, Combined Dapoxetine With Folic Acid and Combined Dapoxetine With Vitamin B12 in Treatment of Patients With Premature Ejaculation | Evaluation of the Clinical Efficacy and Safety of Dapoxetine, Combined Dapoxetine With Folic Acid and Combined Dapoxetine With Vitamin B12 in Treatment of Patients With Premature Ejaculation: A Randomized Placebo-controlled Clinical Trial | NCT04085354 |
| Improving vitamin B12 status of Indians. | Enhancing cobalamin (vitamin B12) bioavailability in culturally appropriate foods in India | CTRI/2019/08/021001 |
| Serum Folic Acid and Vitamin B12 in children with Idiopathic Epilepsy and their relation to Seizure Control and Cognitive functions | Assessment of Serum Folic Acid and Vitamin B12 in children with Idiopathic Epilepsy: Relation to Seizure Control and Cognitive functions | PACTR201704002060106 |
| In between rural and urban population going to compare Vitamin B12 status and its knowledge | Comparison of knowledge, attitude and practice about vitamin B12 and vitamin B12 status between reproductive women from rural and urban population | CTRI/2019/08/020984 |
| Effect of Vitamin B12 supplementation on growth of the baby | Supplementation of vitamin B12 to improve B12-folate ratio in pregnancy and its effect on birth outcome | CTRI/2020/01/022713 |
| Potential Intervention Strategy With Folic Acid and Vitamin B12 in Patients With Schizophrenia | Relationships of One-carbon Cycle Pathway With Psychopathology and Metabolic Abnormalities in Patients With Schizophrenia and Potential Intervention Strategy With Folic Acid and Vitamin B12 | NCT02916121 |
| Study to see effect of giving Vitamin B12 on blood and nerve in preterm and low birth weight newborn | A comparative study to assess the Neurological and Hematological outcome following vitamin B12 supplementation in low birth weight preterm neonates in NICU of a tertiary care hospital - NEOB12 | CTRI/2019/12/022299 |
| Effect of vitamin B12 in treatment of fatty liver disease | Comparison of the effect of vitamin B12 supplement with placebo on grade of liver steatosis and fibrosis based on the results of elastography in patients with Non-Alcoholic Fatty Liver Disease | IRCT20120718010333N5 |
| Vitamin B12 for Aromatase Inhibitors Associated Musculoskeletal Symptoms in Breast Cancer | A Randomized Study of Oral Vitamin B12 for the Treatment of Aromatase Inhibitors (AI)-Associated Musculoskeletal Symptoms (AIMSS) in Women With Early Stage Breast Cancer | NCT04205786 |
| A study to to assess the effect of weekly iron, folic acid and Vit B12 (IFAB)supplementation among 6-24months children on reduction in anaemia prevalence | Weekly iron, folate and vitamin B12 (IFAB) supplementation in children between 6-24 months: A cluster randomized trial from Wardha - None | CTRI/2014/12/005270 |
| Effect of Folic Acid, Vitamin B6 and Vitamin B12 in Diabetic Retinopathy | | NCT01921192 |
| Effects of Vitamin B12 on the Body's Internal Clock | Effect of Vitamin B12 on the Human Circadian Pacemaker | NCT00120484 |
| Folic Acid and Vitamin B12 in Diabetes | Effect of Folic Acid and Vitamin B12 Supplementation on Cognitive Function in Patients with Type 2 Diabetes | IRCT20090901002394N48 |
| Oral vitamin B12 supplementation and cognitive performance in elderly people. | The effect of oral vitamin B12 supplementation on cognitive performance in elderly people. | NL-OMON24656 |
| Can Oral Vitamin B12 and Folate Supplementation Preserve Cognitive Function of Patients With Early Dementia? | Can Oral Vitamin B12 and Folate Supplementation Preserve Cognitive Function of Patients With Early Dementia? | NCT00164970 |
| Vitamin B12 and Folic Acid Supplementation for Preventing Fractures in Elderly People | Vitamin B12 and Folic Acid Supplementation for Preventing Fractures in Elderly People | NL-OMON24934 |
| Impact of Vitamin B12 Supplementation With Iron and Folic Acid on Adolescent Girls | Impact of Vitamin B12 Supplementation With Iron and Folic Acid on Adolescent Girls | NCT01490944 |
| Oral Vitamin B12 treatment for Infantile Tremor Syndrome | Oral versus ParenteralVitamin B12 therapy in Infantile Tremor Syndrome | CTRI/2020/05/025382 |
| 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 |
| Role of vitamin B12 in older adults with Depression | Study of Vitamin B12 Supplementation in Late Life Depression | CTRI/2020/04/024920 |
| Evaluation of role of oral supplementation of Vitamin B12 and folate in Open Angle Glaucoma | Evaluation of role of Vitamin B12 and folate in Open Angle Glaucoma - nil | CTRI/2024/08/072110 |
| 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 |
| VITAMIN B12 AND FOLIC ACID SUPPLEMENTATION FOR PREVENTING FRACTURES IN ELDERLY PEOPLE | VITAMIN B12 AND FOLIC ACID SUPPLEMENTATION FOR PREVENTING FRACTURES IN ELDERLY PEOPLE - B-vitamins for prevention of fractures | NL-OMON31788 |
| Randomized Trial of Vitamin B12 in Pregnant Indian Women | Randomized Trial of Vitamin B12 in Pregnant Indian Women | NCT00641862 |
| Folic Acid and Vitamin B12 in Young Indian Children | Routine Administration of Folic Acid and Vitamin B12 to Prevent Childhood Infections in Young Indian Children | NCT00717730 |
| Study of Pralatrexate in Patients With Relapsed or Refractory Cutaneous T-cell Lymphoma | A Phase 1, Open-label Study of Pralatrexate With Vitamin B12 and Folic Acid Supplementation in Patients With Relapsed or Refractory Cutaneous T-cell Lymphoma | NCT00554827 |
| Can developmental programming of adiposity and insulin resistance in rural Indian children be reversed during adolescent growth by vitamin B12 supplementation? A pilot study | | ISRCTN59289820 |
| Study of Pralatrexate & Gemcitabine With B12 & Folic Acid to Treat Relapsed/Refractory Lymphoproliferative Malignancies | A Phase 1/2a Open-label Study of Pralatrexate and Gemcitabine With Vitamin B12 and Folic Acid Supplementation in Patients With Relapsed or Refractory Lymphoproliferative Malignancies | NCT00481871 |
| Topical Vitamin B12 in Chronic Plaque Psoriasis | Topical Vitamin B12 in Chronic Plaque Psoriasis | NCT00350116 |
| How Many Patients Are in Need of Vitamin B12 Injections? | How Many Patients Are in Need of Vitamin B12 Injections? | NCT00326833 |
| Plasma Holotranscobalamin as Compared to Plasma Cobalamins for Assessment of Vitamin B12 Absorption | Plasma Holotranscobalamin as Compared to Plasma Cobalamins for Assessment of Vitamin B12 Absorption. Optimisation of a Non-Radioactive Vitamin B12 Absorption Test (CobaSorb) | NCT00306358 |
| Oral Vitamin B12 as Potential Treatment of Recurrent Aphthous Stomatitis | | NCT00288769 |
| Evaluation of Holotranscobalamin as an Indicator of Vitamin B12 Absorption | Evaluation of Holotranscobalamin as an Indicator of Vitamin B12 Absorption | NCT00235573 |
| Efficacy of Treating First Episode Psychosis With Folic Acid,B12 and B6 in Addition to Antipsychotic Medication | VIP (Vitamins In Psychosis) Study. A Randomized Double Blind Placebo Controlled Trial of the Effects of Vitamin B12, B6 and Folic Acid Augmentation on Cognition and Symptoms in Early Psychosis. | NCT00202280 |
| Vitamin B12 Status and Response to Vitamin B12 Supplementation in Patients With Parkinson's Disease | Assessment of Cobalamin Status and Responses to Supplementation in Patients With Parkinson's Disease : a Pilot Study | NCT00208611 |
| Pemetrexed, Cisplatin, and Vitamin B12 in Treating Patients With Mesothelioma of the Chest That Cannot Be Removed by Surgery | Phase 2 Pharmacological Study of Pemetrexed Administered With Cisplatin and a Vitamin Supplement in Patients With Nonresectable Pleural Mesothelioma | NCT00541073 |
| Examination of the relevance of plant products on vitamin B12-supply of vegetarians and vegans | Examination of the relevance of plant products on vitamin B12-supply of vegetarians and vegans - PflB12-Veg | DRKS00009974 |
| Vitamin B12 and Folate Administration on Homocysteine Concentrations After Nitrous Oxide Anesthesia | Influence of Preoperative Vitamin B12 and Folate Administration on Homocysteine Concentrations After Nitrous Oxide Anesthesia | NCT00901394 |
| Hematologic Profile, Vit. B12 and Folic Acid in Cirrhotics Received Sofosbuvir and Daclatasvir With or Without Ribavirin | Changes in Hematologic Profile, Vitamin B12 and Folic Acid Level in Cirrhotic Patients Received Sofosbuvir and Daclatasvir With or Without Ribavirin | NCT03283176 |
| Vitamin B12 Blood Level Absorption Study in Healthy Adult Volunteers. | Vitamin B12 Blood Level Absorption Study in Healthy Adult Volunteers. | ACTRN12616001326482 |
| A randomized controlled trial for vitamin B12 eye drops combined with amblyopia training in the treatment of children with amblyopia | A randomized controlled trial for vitamin B12 eye drops combined with amblyopia training in the treatment of children with amblyopia | ChiCTR1800016499 |
| Effect of Vitamin B12, Folate, and Entacapone in Levodopa-induced hyperhomocysteinemia | Effect of Vitamin B12, Folate, and Entacapone in Levodopa-induced hyperhomocysteinemia | TCTR20181221001 |
| The effect of vitamin B12 and folic acid supplementation on the treatment of multiple sclerosis | The effect of vitamin B12 and folic acid supplementation on serum homocysteine, megaloblastic anemia status, blood pressure and life quality in patients with multiple sclerosis | IRCT2015100313678N7 |
| Research on effects of folic acid and vitamin B12 on the patients with Alzheimer's disease | Community-based research on effects of folic acid and vitamin B12 on the patients with mild cognitive impairment | ChiCTR-IOR-16009731 |
| Vitamin B-12 in Infantile Tremor Syndrome Study (BITS study) | A Randomized Controlled Trial comparing Vitamin B12 monotherapy versus combination multinutrient therapy with Vitamin B12 for efficacy in treatment of Infantile Tremor Syndrome - BITS | CTRI/2018/05/013841 |
| vitamin B12 in sleep quality | The effect of vitamin B12 on sleep quality of elderly | IRCT20100114003064N8 |
| A Single Arm Study Evaluating the Efficacy and Safety of Pralatrexate in Subjects With Relapsed or Refractory PTCL | A Multi-center, Single Arm, Safety and Efficacy Study of Pralatrexate With Vitamin B12 and Folic Acid Supplementation in Subjects With Relapsed or Refractory Peripheral T-cell Lymphoma | NCT03349333 |
| TRIM: Danish Form and Dose Study on Vitamin B12 | TRIM: Danish Form and Dose Study in Vitamin B12 | NCT02832726 |
| Effect of Folic Acid and Vitamin B12 Supplementation in Subjects With Type 2 Diabetes | Effect of Folic Acid and Vitamin B12 Supplementation on Biochemical Parameters in Subjects With Type-2 Diabetes | NCT02786823 |
| 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 |
| Vitamin B12 Pregnancy Supplementation | Vitamin B12 Supplementation in Addition to Folic Acid and Iron Improves Hematological and Biochemical Markers in Pregnancy: a Randomized Controlled Trial | NCT03522428 |
| Assaying and understanding absorption of vitamin B12 and its deficiency by using safe and reliable methods. | Measurement of the absorption of vitamin B12, and the estimation of functional deficit in vitamin B12 deficiency, by stable isotope labeled methods | CTRI/2018/04/012957 |
| Vitamin B1-6-12 and vitamin B12 to improve the reduced sensation from Bilateral Sagittal Split Ramus Osteotomy: a prospective randomised double blind controlled clinical trial | Vitamin B1-6-12 and vitamin B12 to improve the reduced sensation from Bilateral Sagittal Split Ramus Osteotomy: a prospective randomised double blind controlled clinical trial | TCTR20181030001 |
| An open lable randomized controlled trial for folic acid and vitamin B12 versus vitamin C in the intervention of the patients with mild cognitive impairment | An open lable randomized controlled trial for folic acid and vitamin B12 versus vitamin C in the intervention of the patients with mild cognitive impairment | ChiCTR-ROC-16008305 |
| 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 regular consumption of fortified rice on prevalence of anaemia in school children | Technology development and efficacy testing of extruded rice fortified with iron, folic acid and vitamin B12 | CTRI/2017/11/010655 |
| A new test to look for low levels of vitamin B12 in the body. | A novel screening tool to detect vitamin B12 deficiency. | CTRI/2017/11/010521 |
| Multi-center randomized controlled trial to evaluate oral vitamin B12 treatment for vitamin B12 deficiency after total gastrectomy in gastric cancer patients | Multi-center randomized controlled trial to evaluate oral vitamin B12 treatment for vitamin B12 deficiency after total gastrectomy in gastric cancer patients - Multi-center randomized controlled trial to evaluate oral vitamin B12 treatment for vitamin B12 deficiency after total gastrectomy in gastric cancer patients | JPRN-UMIN000030727 |
| Vitamin B12 Supplementation to Improve B12 Status and Child Development | Effects of Vitamin B12 Fortified Milk Supplementation During Pregnancy and 6 Month Postpartum to Improve B12 Status and Child Development | NCT03258385 |
| Identification of a suitable milk-derived product, the consumption of which could prevent vitamin B12 deficiency (IMPROVIT) | Uptake of various forms and amounts of vitamin B12 (Part I-IMPROVIT) - IMPROVIT | CTRI/2017/01/007712 |
| Vitamin B12 for Aromatase Inhibitors Musculoskeletal Symptoms | A Single Arm Phase II Study of Oral Vitamin B12 for the Treatment of Aromatase Inhibitors (AI) Associated Musculoskeletal Symptoms in Women With Early Stage Breast Cancer | NCT03069313 |
| A community based cross-sectional study on the association between Vitamin B12 status and sleep quality | A community based cross-sectional study on the association between Vitamin B12 status and sleep quality on healthy people age between 18-65 years. | ACTRN12617000223336 |
| Comparison of two different methods of correcting vitamin b12 deficiencies | Comparison of two different regimens of vitamin B12 therapy in hematological manifestations of Macrocytic-Megaloblastic Anemia(nutritional) in children | CTRI/2017/07/009124 |
| Clinical trial of high-dose vitamin B12 treatment for type 1 diabetic patients with impaired awareness of hypoglycemia. | Clinical trial of high-dose vitamin B12 treatment for type 1 diabetic patients with impaired awareness of hypoglycemia. - Clinical trial of high-dose vitamin B12 treatment for type 1 diabetic patients with impaired awareness of hypoglycemia. | JPRN-UMIN000026348 |
| Evaluation of vitamin B12 supplementation on nutritional status in vegan and vegetarian subjects | Evaluation of nutritional status of vitamin B12 in vegans and vegetarians with marginal deficiency after 12 weeks of supplementation with two dosages of a sublingual formulation | ISRCTN75099618 |
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