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714 studies found for:    Open Studies | "Vitamin B Complex"
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Rank Status Study
1 Recruiting Impact of Folates in the Care of the Male Infertility
Condition: Male Infertility
Interventions: Drug: Folic acid;   Drug: placebo of folic acid
2 Unknown  Effect of Folic Acid on Primary Folate Forms in Relation to MTHFR
Condition: the Effect of MTHFR C677T on Folate Metabolism
Interventions: Dietary Supplement: folic acid plus B6 and B12;   Dietary Supplement: folic acid
3 Not yet recruiting Folic Acid Supplementation in Pregnant Women: Dose Response
Condition: Pregnancy
Interventions: Dietary Supplement: Folic acid, 400 mcg/day;   Dietary Supplement: Folic acid 800 mcg/day
4 Recruiting The Effects of Vitamin B-6 Status on Homocysteine, Oxidative Stress, One-carbon Metabolism and Methylation: Cross-section, Case-control, Intervention and Follow-up Studies in Colorectal Cancer
Condition: Colorectal Cancer
Interventions: Dietary Supplement: Vitamin C;   Dietary Supplement: Vitamin B6;   Dietary Supplement: Folic acid;   Dietary Supplement: Vitamin B6 plus folic acid
5 Recruiting Vitamin B12 Acceptance and Biomarker Response Study
Condition: Vitamin B 12 Deficiency
Interventions: Drug: Oral administration of vitamin B12;   Drug: i.m. injection of vitamin B12
6 Not yet recruiting Impact of High-dose Folic Acid Supplementation on Pathways Linked to DNA Formation
Condition: One-carbon Metabolism in Healthy Individuals
Interventions: Dietary Supplement: Folic acid;   Dietary Supplement: 5-methyltetrahydrofolate, calcium salt
7 Unknown  Evaluation of Mirtazapine and Folic Acid for Schizophrenia:
Conditions: Schizophrenia;   Negative Symptoms
Interventions: Drug: mirtazapine and folic acid;   Drug: mirtazapine, folic acid placebo;   Drug: mirtazapine placebo, folic acid;   Drug: mirtazapine placebo, folic acid placebo
8 Recruiting Vitamin B6 Effects for Women Taking Birth Control Pills
Condition: Vitamin B6 Deficiency
Interventions: Dietary Supplement: Vitamin B6;   Procedure: Infusion of amino acids, serine, and methionine
9 Recruiting High Dose Folic Acid Supplementation Throughout Pregnancy for Preeclampsia Prevention
Conditions: Pregnancy Complications;   Preeclampsia
Interventions: Drug: Folic Acid 4 mg;   Drug: Placebo
10 Recruiting Folic Acid Dosage and Malformations Reduction
Condition: Congenital Malformations
Intervention: Drug: folic acid
11 Recruiting Examining Risk Factors for Atypical Antipsychotic Metabolic Side Effects
Condition: Schizophrenia
Interventions: Dietary Supplement: Folic Acid;   Dietary Supplement: folic acid;   Other: Placebo
12 Unknown  Impact of Vitamin B12 Supplementation With Iron and Folic Acid on Adolescent Girls
Condition: Anaemia
Interventions: Drug: Iron, Folic acid and Cyanocobalamin;   Drug: Iron and Folic Acid
13 Not yet recruiting Vitamin B12, Neurodevelopment and Growth in Nepal
Conditions: Development;   Vitamin Deficiency;   Malnutrition
Intervention: Dietary Supplement: Vitamin B12
14 Unknown  Prevention of Mood Disorders by Folic Acid Supplementation
Conditions: Depression;   Bipolar Disorder
Interventions: Drug: Folic Acid;   Drug: Placebo
15 Recruiting Folic Acid and Zinc Supplementation Trial (FAZST)
Conditions: Pregnancy;   Live Birth;   Spontaneous Abortion
Interventions: Dietary Supplement: 5 mg folic acid and 30 mg elemental zinc;   Drug: Placebo Comparator: Placebo
16 Recruiting Study of Folic Acid, Calcium and Vitamin D in Preventing Colorectal Polyps and Colorectal Cancer
Condition: Colorectal Neoplasms
Interventions: Drug: folic acid;   Drug: folic acid  calcium  vitamin D3;   Drug: calcium
17 Recruiting Vitamin D and Vitamin B12 Supplementation With Pegylated Interferon-Alfa Plus Ribavirin for Treating Chronic Hepatitis C
Conditions: RNA Virus Infections;   Flaviviridae Infections;   Hepatitis C;   Hepatitis C, Chronic
Interventions: Drug: Vitamin D;   Drug: Vitamin B 12
18 Recruiting A Pilot Study to Assess the Efficacy and Safety of Folic Acid and/or Vitamin B Complex on Hepatitis C Infected Patients Treated With Pegylated Interferon and Ribavirin.
Condition: Hepatitis C
Interventions: Dietary Supplement: Folic acid;   Drug: Neurobion;   Drug: placebo
19 Not yet recruiting A Trial of Folate With B12 in Patients With Schizophrenia With Residual Symptoms in Ethiopia
Condition: Schizophrenia
Interventions: Drug: folate with B12;   Drug: placebo
20 Unknown  Folate Rechallenge
Condition: Autism
Interventions: Dietary Supplement: Folic acid;   Dietary Supplement: Placebo

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Indicates status has not been verified in more than two years