418 studies found for:    Open Studies | "Vitamin D"
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Rank Status Study
1 Recruiting Vitamin D in Pediatric Asthma: a Randomized Controlled Open-label Pilot Trial
Conditions: Asthma;   Vitamin D Deficiency
Interventions: Drug: Vitamin D2 + vitamin D3;   Drug: Vitamin D3
2 Recruiting The Effect of Vitamin D Repletion in Patients With Hepatocellular Carcinoma on the Orthotopic Liver Transplant List
Conditions: Vitamin D Deficiency;   Hepatocellular Carcinoma
Interventions: Drug: Vitamin D3 4000 IU;   Drug: Vitamin D3 2000 IU
3 Not yet 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
4 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
5 Unknown  Vitamin D Replacement After Kidney Transplant
Conditions: Kidney Transplantation;   Vitamin D Deficiency
Intervention: Dietary Supplement: vitamin D3
6 Recruiting 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
7 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)
8 Recruiting Effect of Vitamin D Supplementation on Glucose Tolerance in Subjects at Risk for Diabetes With Low Vitamin D.
Conditions: Type 2 Diabetes Mellitus;   Vitamin D Deficiency
Interventions: Dietary Supplement: Control;   Dietary Supplement: Vitamin D
9 Recruiting Finnish Vitamin D Trial (FIND)
Conditions: Cardiovascular Diseases;   Cancer
Interventions: Dietary Supplement: Vitamin D3;   Dietary Supplement: Placebo
10 Recruiting Vitamin D and Breast Cancer: Does Weight Make a Difference?
Condition: Breast Cancer
Intervention: Drug: Vitamin D3
11 Recruiting Vitamin D Supplements for HIV-positive Patients on cART
Condition: HIV-associated Co-morbidities
Interventions: Dietary Supplement: conventional vitamin D treatment;   Drug: tiered/titrated vitamin D dosing
12 Unknown  Impact of Vitamin D on Diabetic Kidney Disease in African Americans
Condition: Diabetic Kidney Disease
Intervention: Drug: Vitamin D3
13 Unknown  Vitamin D Deficiency Causes Immune Dysfunction and Enables or Perpetuates the Development of Rheumatoid Arthritis
Conditions: Arthritis, Rheumatoid;   Vitamin D Deficiency
Interventions: Drug: Placebo in arm A and Vitamin D in arm B;   Drug: vitamin D 3 for arm A ,and matching placebo for arm B
14 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
15 Recruiting Bioavailability of Vitamin D in Children and Adolescents With Crohn's Disease
Condition: Crohn's Disease
Interventions: Drug: Vitamin D3 3000 UI daily;   Drug: Vitamin D3 4000 UI daily
16 Recruiting Dose-dependent Effects of Vitamin D on Bone Health
Condition: Age-Related Osteoporosis
Intervention: Dietary Supplement: Vitamin D
17 Unknown  Effect of Vitamin D Supplementation on Hemoglobin A1c
Conditions: Diabetes Mellitus;   Vitamin D Deficiency
Intervention: Dietary Supplement: Vitamin D
18 Recruiting Study of Vitamin D in the Severely Mentally Ill
Conditions: Schizophrenia;   Schizoaffective Disorder
Intervention: Dietary Supplement: Vitamin D3
19 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
20 Recruiting 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