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534 studies found for:    Open Studies | "Vitamins"
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Rank Status Study
21 Not yet recruiting Roles of Vitamin D and HDL in Obese Children
Conditions: Obese;   Vitamin D Deficiency;   Low HDL
Intervention: Dietary Supplement: Vitamin D
22 Unknown  Vitamin D During Pregnancy
Condition: Vitamin D Deficiency
Interventions: Other: completion of a questionnaire;   Other: Blood draw
23 Not yet recruiting Vitamin A, Stool Microbiota and Vaccine Response in Bangladeshi Infants
Condition: Vitamin A Deficiency
Intervention:
24 Not yet recruiting Therapeutic Benefit of Preoperative Supplemental Vitamin D in Patients Undergoing Major Surgical Procedures.
Condition: Vitamin d Deficiency
Interventions: Procedure: Blood draw pre-operatively;   Procedure: Blood draw post-operative Day 1;   Procedure: Blood draw post-operative Day 2
25 Recruiting Vitamin D Repletion in Primary Hyperparathyroidism
Conditions: Primary Hyperparathyroidism;   Vitamin D Deficiency
Interventions: Dietary Supplement: 10,000 IU Vitamin D3;   Dietary Supplement: Placebo
26 Unknown  Vitamin D Levels and Postoperative Hypocalcemia After Total Thyroidectomy
Conditions: Hypocalcemia;   Hypoparathyroidism;   Vitamin D Deficiency;   Thyroidectomy
Intervention:
27 Not yet recruiting Hip Arthroplasty and Vitamin D Status
Condition: Vitamin D Deficiency
Intervention: Other: No intervention
28 Recruiting Vitamin D3 Supplementation for Heart Failure Patients
Conditions: Heart Failure;   Vitamin D Deficiency;   Cardiomyopathy;   Congestive Heart Failure
Interventions: Drug: Placebo Comparator: Sugar Pill;   Drug: Vitamin D3 (cholecalciferol)
29 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
30 Recruiting Effect of Vitamin D Treatment on Fatigue
Condition: Vitamin D Deficiency
Interventions: Drug: Vitamin D;   Other: placebo
31 Recruiting Vitamin D Deficiency and Replacement on Pulmonary and Endocrine Function in SCI
Conditions: Spinal Cord Injury;   Vitamin D Deficiency
Intervention: Drug: Vitamin D3
32 Recruiting Vitamin D Intervention Trial in Healthy Chinese,Phase II
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: Placebo;   Dietary Supplement: Vitamin D
33 Not yet recruiting Vitamin D Among Young Adults: an Intervention Study Using a Mobile 'App'.
Condition: Vitamin D Deficiency
Intervention: Behavioral: an educational video
34 Unknown  Interventional Trial of Vitamin D Deficiency in the Patients of General Departments
Condition: Vitamin D Deficiency
Intervention: Dietary Supplement: Alpha-D3
35 Unknown  Effect of Vitamin D Supplementation on Hemoglobin A1c
Conditions: Diabetes Mellitus;   Vitamin D Deficiency
Intervention: Dietary Supplement: Vitamin D
36 Recruiting Effect of Vitamin D Supplementation on Metabolic Parameters of Patients With Psoriasis
Conditions: Psoriasis;   Metabolic Syndrome;   Vitamin D Deficiency
Interventions: Dietary Supplement: Vitamin D3;   Dietary Supplement: Placebo
37 Recruiting hCAP18 Levels and Vitamin D Deficiency in Chronic Kidney Disease
Conditions: Chronic Kidney Disease;   Vitamin D Deficiency
Interventions: Drug: Ergocalciferol;   Drug: Calcitriol
38 Not yet recruiting Effect of Vitamin D Supplementation in Patients With Heart Failure and Vitamin D Deficiency
Conditions: Heart Failure;   Vitamin D Deficiency
Interventions: Other: Vitamin D Supplementation;   Other: Control group (Placebo)
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 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

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Indicates status has not been verified in more than two years