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874 studies found for:    Cholecalciferol OR Ergocalciferol

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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 Completed Safety and Bioefficacy of Vitamin D2 and Vitamin D3
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: cholecalciferol;   Dietary Supplement: ergocalciferol;   Dietary Supplement: Placebo
3 Recruiting Differential Effects of Ergocalciferol and Cholecalciferol Therapies in Chronic Kidney Disease
Condition: Chronic Kidney Disease
Interventions: Dietary Supplement: Vitamin D2 (ergocalciferol);   Dietary Supplement: Vitamin D3 (cholecalciferol)
4 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
5 Completed Availability of Vitamin D in Orange Juice
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: Vitamin D2 in orange juice;   Dietary Supplement: Vitamin D3 in orange juice;   Dietary Supplement: Vitamin D2;   Dietary Supplement: Vitamin D3;   Other: Placebo
6 Active, not recruiting Bioavailability and Biological Effects of Vitamin D2 Contained in Mushroom
Conditions: Vitamin D Deficiency;   Metabolic Syndrome;   Prediabetes
Interventions: Dietary Supplement: Mushroom fortified with 600 IU of vitamin D2;   Dietary Supplement: Mushroom fortified with 4000 IU of vitamin D2;   Dietary Supplement: Commercially available Vitamin D3 (600 IU) supplement;   Dietary Supplement: Commercially available Vitamin D3 (4000 IU) supplement
7 Active, not recruiting Vitamin D Supplementation and Metabolism in Vitamin D Deficient Elderly
Conditions: Vitamin D Deficiency;   Metabolic Syndrome
Interventions: Dietary Supplement: RDA Vitamin D3 only;   Dietary Supplement: Vitamin D2/3 Repletion only;   Other: Vitamin D2/3 Repletion + AEX;   Other: Vitamin D2/3 Repletion + RT
8 Not yet recruiting Pharmacokinetic Comparison of Vitamin's D2 and D3 in Stage 5 Chronic Kidney Disease Patients on Chronic Hemodialysis
Condition: Chronic Kidney Disease
Interventions: Dietary Supplement: Vitamin D3;   Dietary Supplement: Vitamin D2;   Dietary Supplement: Placebo
9 Completed Clinical Approaches to Correcting Vitamin D Inadequacy and Maintaining Adequacy
Conditions: Vitamin D Inadequacy;   Vitamin D Deficiency
Interventions: Dietary Supplement: Cholecalciferol (vitamin D3);   Dietary Supplement: Ergocalciferol (vitamin D2);   Dietary Supplement: Placebo
10 Completed Vitamin D and Genetics in Nutritional Rickets
Condition: Nutritional Rickets
Interventions: Dietary Supplement: Vitamin D + Calcium;   Dietary Supplement: Calcium;   Dietary Supplement: Vitamin D2;   Dietary Supplement: Vitamin D3
11 Recruiting Vitamin D Supplement Study for Stage Three and Four Chronic Kidney Disease (CKD) Patients
Condition: Chronic Kidney Disease Stage 3 and 4
Interventions: Drug: Ergocalciferol;   Drug: Cholecalciferol
12 Completed Study Comparing Two Isoforms of Vitamin D Supplements for Infants
Condition: Healthy
Intervention: Dietary Supplement: Cholecalciferol (D3) or ergocalciferol (D2)
13 Unknown † Vitamin D Levels in Children With IBD
Conditions: Inflammatory Bowel Disease;   Crohn's Disease;   Ulcerative Colitis
Interventions: Dietary Supplement: ergocalciferol;   Dietary Supplement: Cholecalciferol
14 Completed Relative Efficacy of Vitamins D2 and D3 in Adult Humans
Condition: Healthy
Interventions: Dietary Supplement: vitamin D2;   Dietary Supplement: vitamin D3
15 Enrolling by invitation Efficacy of Vitamin D2 to Treat Chronic Kidney Disease Mineral and Bone Disorder
Condition: Vitamin D Deficiency
Interventions: Drug: Vitamin D2;   Drug: 1,25(OH)2 Vitamin D3
16 Active, not recruiting Health Benefits of Vitamin D and Calcium in Women With PCOS (Polycystic Ovarian Syndrome)
Conditions: Polycystic Ovarian Syndrome;   Vitamin D Deficiency
Interventions: Dietary Supplement: Vitamin D2 (Ergocalciferol);   Drug: Medroxyprogesterone (Provera);   Dietary Supplement: Vitamin D3 (Cholecalciferol);   Dietary Supplement: Elemental Calcium
17 Completed Improving Vitamin D Status In Cystic Fibrosis
Condition: Cystic Fibrosis
Interventions: Drug: ergocalciferol (vitamin D2);   Device: Sperti Del Sol Lamp;   Drug: Vitamin D3
18 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
19 Completed Evaluation of Vitamin D Status in Children With Acute Burns
Conditions: Burns;   Bone Demineralization
Interventions: Dietary Supplement: Vitamin D2;   Dietary Supplement: Vitamin D3
20 Not yet recruiting Vitamin D as a Modifier of Serum Hepcidin in Children With Chronic Kidney Disease
Condition: Anemia of Chronic Kidney Disease
Intervention: Drug: Cholecalciferol
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† Indicates status has not been verified in more than two years