282 studies found for:    Open Studies | "Vitamin D"
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Rank Status Study
21 Recruiting Does Vitamin D Break the Vicious Circle of Polycystic Ovarian Syndrome of Insuline Resistance ?
Condition: PCOS
Interventions: Drug: Vitamin D;   Drug: placebo
22 Recruiting The Effect of Vitamin D Administration to Premature Infants on Vitamin D Status and Respiratory Morbidity
Conditions: Other Preterm Infants;   Vitamin D Deficiency;   Bronchiolitis;   Asthma;   Pneumonia
Intervention: Dietary Supplement: Vitamin D
23 Recruiting Vitamin D Supplementation in Cutaneous Malignant Melanoma Outcome
Condition: Cutaneous Malignant Melanoma
Interventions: Drug: Vitamin D;   Drug: arachides oleum raffinatum
24 Recruiting Determination of Vitamin D Dose to Maintain Sufficiency Amongst Indian and Malay Women in the Tropics
Condition: Vitamin D Deficiency
Intervention: Drug: Vitamin D3
25 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
26 Not yet recruiting Roles of Vitamin D and HDL in Obese Children
Conditions: Obese;   Vitamin D Deficiency;   Low HDL
Intervention: Dietary Supplement: Vitamin D
27 Recruiting High Dose Vitamin D Supplementation in Chronic Spontaneous Urticaria
Condition: Urticaria
Interventions: Drug: Vitamin D3 (High dose);   Drug: Vitamin D3 (Low dose)
28 Recruiting High Dose Vitamin D Study
Condition: Colorectal Cancer
Intervention: Drug: Vitamin D
29 Recruiting Effectiveness of Vitamin D Supplementation
Conditions: Elevated Blood Pressure;   Endothelial Dysfunction
Intervention: Dietary Supplement: 2,000 International Units (IU)of vitamin D3
30 Recruiting Preventive and Reversional Effect of Vitamin D on Parenteral Nutrition Associated Liver Disease
Condition: Liver Disease
Intervention: Drug: Vitamin D
31 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
32 Recruiting Effectiveness of High Dose Vitamin D Supplementation in Stage III Colorectal Cancer
Conditions: Colon Cancer;   Rectal Cancer
Intervention: Dietary Supplement: cholecalciferol
33 Recruiting The Effect of Vitamin D Substitution on the Development of Chronic Pancreatitis
Condition: Chronic Pancreatitis
Interventions: Dietary Supplement: Vitamin D 100ug;   Dietary Supplement: Vitamin D 10ug
34 Recruiting Vitamin D and Muscle Function Study
Condition: Neuromuscular Function
Interventions: Dietary Supplement: Vitamin D;   Dietary Supplement: Placebo
35 Recruiting A Pilot Study of Vitamin D in Boys With X-linked Adrenoleukodystrophy
Condition: X-linked Adrenoleukodystrophy
Intervention: Dietary Supplement: vitamin D3
36 Recruiting Vitamin D and Vascular Health in Children
Conditions: Obesity;   Vitamin D Deficiency
Intervention: Dietary Supplement: Vitamin D3
37 Not yet recruiting The Deferasirox-calcium-vitamin D3 Therapy for Postmenopausal Osteoporosis (PMOP)
Condition: Postmenopausal Osteoporosis
Interventions: Drug: Deferasirox and calcium-vitamin D3;   Drug: Calcium-vitamin D3
38 Recruiting High Dose Vitamin D Replacement in Patients Undergoing Hematopoietic Stem Cell Transplantation
Condition: Vitamin D Deficiency
Intervention: Drug: Vitamin D
39 Recruiting Vitamin D and Calcium Supplement Attenuate Bone Loss Among HIV- Infected Patients Receiving Tenofovir Disoproxil Fumarate, Lamivudine or Emtricitabine and Efavirenz
Condition: Bone Density
Interventions: Drug: TDF/3TC or FTC/EFV plus Calcium and vitamin D supplement;   Other: TDF/3TC or FTC/EFV
40 Recruiting Vitamin D Supplementation and Muscle Characteristics in Trained Subjects
Condition: Healthy Subjects, Trained
Interventions: Dietary Supplement: Vitamin D3;   Dietary Supplement: Placebo

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Study has passed its completion date and status has not been verified in more than two years.