1002 studies found for:    Open Studies | vitamins
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Rank Status Study
21 Not yet recruiting Supplementation of Vitamin D in Patients With Type 2 Diabetes and Hypertension
Condition: Hypertension
Interventions: Dietary Supplement: supplementation of 100.000 IU of vitamin D3;   Dietary Supplement: placebo pill
22 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
23 Not yet recruiting Calcium and High-dose Vitamin D Supplementation on Bone Mineral Density Among HIV-infected Children and Adolescents
Conditions: Adverse Bone Health;   HIV Infection
Interventions: Dietary Supplement: High dose vitamin D and calcium;   Dietary Supplement: Normal dose vitamin D and calcium
24 Unknown  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
Condition: Hepatitis B Virus
Interventions: Drug: Peginterferon + Vitamin D;   Drug: Peginterferon;   Drug: Sebivo;   Drug: entecavir+ vitamin d
25 Recruiting Vitamin E Supplementation in Burned Patients
Condition: Burn
Intervention: Drug: Vitamin E (dl-Alpha Tocopheryl)
26 Recruiting Can Vitamin D Supplementation in Infants Prevent Food Allergy in the First Year of Life? The VITALITY Trial
Condition: Food Allergy
Interventions: Drug: Vitamin D;   Drug: placebo
27 Not yet recruiting Vitamin D and Its Affect on Growth Rates and Bone Mineral Density Until Age 5
Condition: Vitamin D Deficiency
Interventions: Drug: Vitamin D;   Other: Placebo (for Vitamin D)
28 Recruiting A Study Evaluating the Effect of Vitamin D on Clinical Outcome in Autistic Children
Condition: Autism
Interventions: Drug: Vitamin D3;   Other: Placebo
29 Not yet recruiting Effects of Vitamin D Fortification on Vitamin D Metabolite Profiles and Status in Vitamin D Insufficient Individuals
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: Rooibos Iced-Tea (Control);   Dietary Supplement: Rooibos Tea - Vitamin D3;   Dietary Supplement: Rooibos Tea- Vitamin D3 & Calcium
30 Unknown  Effect of Vitamin D on Retinal Changes in Patient With Optic Neuritis by Optic Coherence Tomography
Condition: Optic Neuritis
Interventions: Drug: Vitamin D;   Drug: Vitamin D withheld
31 Unknown  Vitamin D Supplementation in Chronic Rhinosinusitis With Nasal Polyps
Condition: Chronic Sinusitis
Intervention: Biological: Vitamin D
32 Unknown  Effects of Vitamin D on Inflammation in Liver Disease
Conditions: Hepatitis C Infection;   Vitamin D Deficiency
Interventions: Drug: Vitamin D;   Drug: Placebo
33 Recruiting Anti-proliferative Effects of Vitamin D and Melatonin in Breast Cancer
Condition: Early Stage Breast Cancer
Interventions: Drug: Melatonin;   Drug: Vitamin D;   Drug: Placebo (melatonin);   Drug: Placebo (vitamin D)
34 Recruiting Vitamin D Treatment and Hypogonadism in Men
Condition: Hypogonadism
Interventions: Drug: Vitamin D supplementation in hypogonadal men;   Drug: Vitamin D supplementation in eugonadal men;   Drug: Placebo hypogonadal;   Drug: Placebo eugonadal
35 Unknown  Evaluating Vitamin D Content in Mushrooms
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: Mushroom Vitamin D2;   Dietary Supplement: Cholecalciferol;   Dietary Supplement: Vitamin D2 - Ergocalciferol;   Dietary Supplement: Mushroom Extract
36 Recruiting Effect of Vitamin C on Postoperative Pain After Laparoscopic Cholecystectomy
Conditions: Chronic Cholecystitis;   Cholelithiasis
Interventions: Drug: Vitamin C;   Drug: Placebo
37 Unknown  Influence of Vitamin D on Vascular Function in Adolescents and Young Adults With Type 1 Diabetes
Condition: Diabetes Mellitus, Type 1
Intervention: Dietary Supplement: Vitamin D
38 Recruiting Vitamin D and Muscle Metabolic Function
Condition: Healthy
Interventions: Dietary Supplement: vitamin D;   Other: aerobic training
39 Recruiting Dose-related Effects of Vitamin D3 on Immune Responses in Patients With Clinically Isolated Syndrome
Conditions: Clinically Isolated Syndrome;   Multiple Sclerosis
Interventions: Dietary Supplement: 5000IU vitamin D;   Dietary Supplement: 10000IU vitamin D;   Other: Placebo
40 Unknown  Effects of Vitamin D and Calcium Supplementation on Inflammatory Biomarkers and Adypocytokines in Diabetic Patients
Condition: Nutritional and Metabolic Disease
Interventions: Dietary Supplement: vitamin D3 supplement;   Dietary Supplement: calcium supplement;   Dietary Supplement: vitamin D3 and calcium supplement;   Dietary Supplement: placebo

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Indicates status has not been verified in more than two years