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403 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 Recruiting 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.
Conditions: Stage, Colon Cancer;   Stage I-III Colon Cancer;   Stage IV Colon Cancer With Resectable Liver Metastases
Intervention: Drug: Vitamin D3
24 Unknown  Effects of Vitamin D on Inflammation in Liver Disease
Conditions: Hepatitis C Infection;   Vitamin D Deficiency
Interventions: Drug: Vitamin D;   Drug: Placebo
25 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
26 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
27 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)
28 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
29 Recruiting Effects of Vitamin D Insufficiency in Man
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: Vitamin D2;   Dietary Supplement: Vitamin D3
30 Recruiting Vitamin D and Muscle Metabolic Function
Condition: Healthy
Interventions: Dietary Supplement: vitamin D;   Other: aerobic training
31 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
32 Recruiting Melatonin and Vitamin D in Breast Cancer
Condition: Breast Cancer
Interventions: Drug: Melatonin;   Drug: Vitamin D;   Drug: Placebo
33 Recruiting Allergic Rhinitis, Immunotherapy and Vitamin d
Condition: Allergy
Interventions: Drug: Vitamin D3;   Drug: placebo
34 Recruiting High Dose Vitamin D Supplementation in Chronic Spontaneous Urticaria
Condition: Urticaria
Interventions: Drug: Vitamin D3 (High dose);   Drug: Vitamin D3 (Low dose)
35 Not yet recruiting Evaluation of Vitamin D in Women With PCOS and Sexual Dysfunction
Conditions: Female Sexual Dysfunction;   Polycystic Ovary Syndrome
Interventions: Dietary Supplement: Vitamin D;   Drug: Hormonal contraception
36 Recruiting Sunshine 2 Study for Women With Diabetes
Conditions: Diabetes;   Depression;   Quality of Life
Interventions: Drug: Vitamin D3;   Drug: Vitamin D3 comparator
37 Unknown  Vitamin D and Glucose Metabolism in Pediatrics
Conditions: Insulin Resistance;   Obesity;   Vitamin D25 Insufficiency
Interventions: Drug: Vitamin D drops;   Drug: Placebo drops
38 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
39 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
40 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

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Indicates status has not been verified in more than two years