110 studies found for:    oh | Open Studies | "Vitamin D"
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Rank Status Study
1 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
2 Unknown  Serum 25(OH)D Levels, Supplemental Vitamin D, and Parathyroid Hormone Levels in Premature Infants
Condition: Premature Infants
Interventions: Dietary Supplement: cholecalciferal;   Dietary Supplement: cholecalciferol
3 Recruiting Clinical Trial on the Use of 25-OH -D Vitamin in Haemodialysis Patients
Condition: Chronic Renal Failure
Intervention: Drug: 25-OH-D vitamin
4 Recruiting Comparison of Changes in Serum 25(OH)D Concentrations Following Vitamin D Supplementation With Chewable Tablets Versus Pills
Condition: Vitamin D Deficiency
Interventions: Drug: Vitamin D chewable tablet supplementation;   Drug: Vitamin D pill supplementation
5 Recruiting Optimizing Vitamin D in the Elderly
Condition: Deficiency of Vitamin D3
Interventions: Dietary Supplement: D3 2000 IU/day;   Dietary Supplement: D3 4000 IU/day;   Dietary Supplement: D3 50,000 IU weekly;   Dietary Supplement: vitamin D3 800 IU/day
6 Not yet recruiting Effects of Vitamin D3 Versus 25OHD3 on Mineral Metabolism and Immune Function
Condition: Vitamin D Deficiency
Interventions: Drug: Vitamin D;   Drug: 25(OH)D3
7 Recruiting Vitamin D Supplementation in Patients With Diabetes Mellitus Type 2
Conditions: Diabetes Mellitus Type 2;   Vitamin D Deficiency
Interventions: Drug: Vitamin D supplementation;   Drug: Placebo Pill
8 Recruiting Treatment Study of Vitamin D Deficiency in Adolescents
Condition: Vitamin D Deficiency
Intervention: Drug: Vitamin D3
9 Unknown  Vitamin D Supplementation Requirement in Obese Subjects
Condition: Vitamin D Deficiency
Interventions: Drug: Vitamin D3;   Drug: placebo
10 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)
11 Recruiting The Effect of 25-OH-Vitamin-D3 Substitution in Patients With Malignant and Immune-hematologic Diseases
Condition: Chronic Lymphoid Leukemia
Interventions: Drug: Cholecalciferol;   Drug: oleum neutralicum
12 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
13 Unknown  Pilot Study Evaluating Doxercalciferol Replacement Therapy in Kidney Transplant Recipients
Conditions: Chronic Kidney Disease;   Kidney Transplantation
Interventions: Drug: Doxercalciferol;   Drug: placebo
14 Recruiting Vitamin D Deficiency and Ovarian Reserve Among Infertile Patients
Condition: Infertility
Intervention:
15 Recruiting Effect of Vitamin D Supplementation on Coronary Calcification and Parathyroid Hormone in CKD Patients
Conditions: Chronic Kidney Disease;   Vitamin D Deficiency
Intervention: Drug: Vitamin D2
16 Not yet recruiting Marwo-D Research -Need for Vitamin D in Different Population Groups
Condition: Serum 25-hydroxyvitamin D Concentrations (25OHD)
Intervention: Dietary Supplement: Vitamin D3
17 Recruiting Vitamin D in Ventilated ICU Patients
Condition: Respiratory Failure
Interventions: Dietary Supplement: Enteral Vitamin D3 50,000 IU;   Dietary Supplement: Enteral Vitamin D3 100,000IU;   Dietary Supplement: Inactive substance
18 Recruiting Vitamin D and Osteoporosis Prevention in Elderly African American Women
Condition: Determining if Vitamin D Can Decrease Bone Loss and Inhibit the Decline Physical Performance in Elderly African American Women.
Interventions: Dietary Supplement: Vitamin D 3;   Other: placebo
19 Not yet recruiting Efficacy of the Dose Regimen of Oral Vitamin D 50,000 IU in the Treatment of Vitamin D Deficiency
Condition: Vitamin D Deficiency
Interventions: Drug: 50.000 IU vitamin D3 (Biodal 50,000 IU);   Drug: Placebo (to mimic Biodal 50,000 IU)
20 Not yet recruiting Maternal Vit D Supplements & Infant and Maternal Biomarkers & Outcomes in Southern Ethiopia
Condition: Vitamin D Deficiency
Intervention: Dietary Supplement: Vitamin D

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Indicates status has not been verified in more than two years