409 studies found for:    Open Studies | "Vitamin D"
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Rank Status Study
21 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
22 Unknown  Effect of Vitamin D on Metabolic Parameters in Patients With the Metabolic Syndrome
Condition: Metabolic Syndrome
Interventions: Drug: Vitamin D3;   Behavioral: Lifestyle advice
23 Unknown  Effects of Vitamin D on Inflammation in Liver Disease
Conditions: Hepatitis C Infection;   Vitamin D Deficiency
Interventions: Drug: Vitamin D;   Drug: Placebo
24 Unknown  The Immune and Clinical Impacts of Vitamin D in Patients With Chronic Musculo-skeletal Pain
Conditions: Vitamin D Deficiency;   Chronic Pain Syndrome;   Inflammatory Response
Intervention: Drug: vitamin D
25 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
26 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)
27 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
28 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
29 Recruiting Vitamin D and Muscle Metabolic Function
Condition: Healthy
Interventions: Dietary Supplement: vitamin D;   Other: aerobic training
30 Recruiting Hepatic Dysfunction, Vitamin D Status, and Glycemic Control in Diabetes
Conditions: Type 2 Diabetes;   Nonalcoholic Fatty Liver Disease;   Vitamin D Deficiency
Intervention: Dietary Supplement: Ergocalciferol, placebo
31 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
32 Recruiting Melatonin and Vitamin D in Breast Cancer
Condition: Breast Cancer
Interventions: Drug: Melatonin;   Drug: Vitamin D;   Drug: Placebo
33 Recruiting Effect of Vitamin D Oral Supplements on 25 OH Vitamin D Levels
Condition: Vitamin D Deficiency
Interventions: Drug: ergocalciferol 2000 IU orally, daily;   Drug: ergocalciferol 25000 IU oraly every 2 weeks;   Drug: ergocalciferol 50000 IU orally every 4 weeks;   Drug: ergocal1000 IU & cholecal 1000 IU orally daily;   Drug: cholecalciferol 2000 IU orally daily;   Drug: Cholecalciferol 25000 IU orally every 2 weeks;   Drug: Cholecalciferol 50000 orally every 4 weeks;   Drug: placebo orally everyday
34 Recruiting Sunshine 2 Study for Women With Diabetes
Conditions: Diabetes;   Depression;   Quality of Life
Interventions: Drug: Vitamin D3;   Drug: Vitamin D3 comparator
35 Unknown  Vitamin D and Glucose Metabolism in Pediatrics
Conditions: Insulin Resistance;   Obesity;   Vitamin D25 Insufficiency
Interventions: Drug: Vitamin D drops;   Drug: Placebo drops
36 Recruiting High Dose Vitamin D vs Standard Dose Vitamin D Study
Condition: Breast Cancer
Interventions: Drug: 800 IU Vitamin D Supplement;   Drug: 50,000 IU Vitamin D supplement
37 Unknown  Vitamin D Supplementation During Pregnancy and Bone Status in Children at Birth and at One Year of Age
Condition: Healthy
Intervention: Dietary Supplement: Vitamin D
38 Not yet recruiting The Vitamin D in Pediatric Crohn's Disease
Condition: Crohn's Disease
Interventions: Drug: Vitamin D3: 3000 or 4000 UI/day then 2,000 UI/day;   Drug: Vitamin D3 800 UI/day then 800 UI/day
39 Recruiting Vitamin D Supplementation in Cutaneous Malignant Melanoma Outcome
Condition: Cutaneous Malignant Melanoma
Interventions: Drug: Vitamin D;   Drug: arachides oleum raffinatum
40 Not yet recruiting Vitamin D Supplementation and TB
Conditions: Tuberculosis;   Vitamin D;   Immunity
Interventions: Dietary Supplement: Vitamin D (600 IU);   Dietary Supplement: Vitamin D (2000 IU);   Dietary Supplement: Vitamin D (4000 IU);   Other: Placebo

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Indicates status has not been verified in more than two years