412 studies found for:    Open Studies | "Vitamin D"
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Rank Status Study
21 Recruiting A Trial on Different Dosages of Vitamin D in Preterm Infants With Late-onset Sepsis
Conditions: Prematurity;   Late-onset Sepsis
Interventions: Drug: High-dose vitamin D 3;   Drug: Conventional-Dose Vitamin D 3
22 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
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 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
25 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
26 Unknown  hCAP18 Levels and Vitamin D Deficiency in Chronic Kidney Disease
Conditions: Chronic Kidney Disease;   Vitamin D Deficiency
Interventions: Drug: Ergocalciferol;   Drug: Calcitriol
27 Unknown  Vitamin D Supplementation in Chronic Rhinosinusitis With Nasal Polyps
Condition: Chronic Sinusitis
Intervention: Biological: Vitamin D
28 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
29 Unknown  Effect of Vitamin D on Metabolic Parameters in Patients With the Metabolic Syndrome
Condition: Metabolic Syndrome
Interventions: Drug: Vitamin D3;   Behavioral: Lifestyle advice
30 Unknown  Effects of Vitamin D on Inflammation in Liver Disease
Conditions: Hepatitis C Infection;   Vitamin D Deficiency
Interventions: Drug: Vitamin D;   Drug: Placebo
31 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
32 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
33 Recruiting Effects of Vitamin D in Patients With Breast Cancer
Condition: Breast Cancer
Interventions: Drug: Vitamin D3;   Other: Placebo
34 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)
35 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
36 Recruiting Effects of Vitamin D Insufficiency in Man
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: Vitamin D2;   Dietary Supplement: Vitamin D3
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 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
40 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

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Indicates status has not been verified in more than two years