409 studies found for:    Open Studies | "Vitamin D"
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1 Unknown  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
2 Unknown  Vitamin D Replacement After Kidney Transplant
Conditions: Kidney Transplantation;   Vitamin D Deficiency
Intervention: Dietary Supplement: vitamin D3
3 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 Not yet recruiting Effect of Supplementary Vitamin D in Patients With Diabetes Mellitus and Pulmonary Tuberculosis
Conditions: Type 2 Diabetes Mellitus;   Pulmonary Tuberculosis
Interventions: Dietary Supplement: Vitamin D;   Dietary Supplement: Calcium;   Dietary Supplement: Placebo Vit D;   Dietary Supplement: Placebo Calcium
5 Recruiting Nutritional Requirements for Vitamin D in Pregnant Women
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: 10 mcg Vitamin D3;   Dietary Supplement: 20 mcg Vitamin D3;   Dietary Supplement: Placebo
6 Recruiting Vitamin D Absorption in HIV Infected Young Adults Being Treated With Tenofovir Containing cART
Condition: HIV Infection
Interventions: Dietary Supplement: Vitamin D3 50,000 IU;   Dietary Supplement: Vitamin D3 placebo
7 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
8 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)
9 Recruiting Vitamin D Status in Relation to Insulin Sensitivity Among Saudi Women With Polycystic Ovary Syndrome
Condition: Polycystic Ovary Syndrome
Interventions: Dietary Supplement: Vitamin D3 pills;   Other: Placebo pills
10 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
11 Unknown  Impact of Vitamin D on Diabetic Kidney Disease in African Americans
Condition: Diabetic Kidney Disease
Intervention: Drug: Vitamin D3
12 Not yet recruiting An Evaluation of the Effect of Vitamin D Supplementation on the Cognitive Function of Older Subjects With Low Levels of This Vitamin
Intervention: Drug: Vitamin D
13 Recruiting Vitamin D, Insulin Resistance, and Cardiovascular Disease
Conditions: Vitamin D Deficiency;   Insulin Resistance;   Type 2 Diabetes Mellitus;   Cardiovascular Disease;   Hypertension
Interventions: Drug: Vitamin D3;   Drug: Placebo
14 Not yet recruiting Follow-up Study With Clinical Vitamin D Supplementation Trial on Patients With Depression (DepFuD)
Conditions: Depression;   Depressive Disorder
Interventions: Dietary Supplement: Vitamin D 10 micrograms;   Dietary Supplement: Vitamin D 100 micrograms
15 Not yet recruiting Impact of Physical Activity and Vitamin D on Osteoarthritic Knee Pain
Condition: Knee Osteoarthritis
Interventions: Dietary Supplement: Vitamin D3 2000IU/daily 3 months;   Behavioral: PA intervention People with Osteoarthritis Walking Programme;   Other: Placebo capsule (Vitamin D): edible oil
16 Unknown  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
17 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
18 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
19 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
20 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

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Indicates status has not been verified in more than two years