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388 studies found for:    Open Studies | "Vitamins"
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Rank Status Study
1 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
2 Recruiting The GLOBAL Vitamin D Study. A Genomic, Transcriptomic, Proteomic and Metabolomic Approach
Condition: Vitamin D Deficiency
Interventions: Drug: Cholecalciferol;   Drug: Placebo
3 Not yet recruiting Vitamin D to Improve Nutrition Prior to Bariatric Surgery and Investigate the Relationship With Negative Outcomes
Conditions: Vitamin D Deficiency;   Vitamin D Insufficiency
Interventions: Dietary Supplement: Vitamin D;   Other: Placebo;   Other: Standard of Care
4 Recruiting The Effect of Vitamin D Supplementation on Cardiovascular Risk Factors
Condition: Vitamin D Deficiency
Interventions: Drug: Cholecalciferol;   Drug: Placebo
5 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
6 Recruiting Effects of Vitamin D Insufficiency in Man
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: Vitamin D2;   Dietary Supplement: Vitamin D3
7 Recruiting Personalized Vitamin D Supplementation in European and African Americans
Condition: Vitamin D Deficiency
Intervention: Dietary Supplement: Vitamin D
8 Recruiting Vitamin D Levels Following Topical Application of Vitamin D Ointment
Condition: Vitamin D Deficiency
Intervention: Drug: Vitamin D3
9 Recruiting Effects of Vitamin D Supplementation on Strength, Bone Density, and Injury Risk in Collegiate Athletes
Condition: Vitamin D Deficiency
Interventions: Drug: Vitamin D 10000 UNT;   Drug: Vitamin D 5000 UNT
10 Recruiting Topical Delivery of Vitamin D3 as Vitamin D Supplementation
Condition: Vitamin D Deficiency
Intervention: Drug: topical vitamin D3 in intervention group
11 Not yet recruiting 'Palliative-D' Vitamin D to Palliative Cancer Patients
Condition: Vitamin D Deficiency
Interventions: Drug: Cholecalciferol;   Device: Placebo
12 Not yet recruiting Evaluation of a Transdermal Vitamin D3 Delivery System, D3forME
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: Transdermal D Patch;   Dietary Supplement: Oral vitamin D3;   Dietary Supplement: Placebo patch;   Dietary Supplement: Oral placebo
13 Recruiting Effects of Vitamin D and Calcium Supplementation on Health and Well-being of Vitamin D Deficient UAE Citizens
Condition: Vitamin D Deficiency
Interventions: Dietary Supplement: Vitamin D and calcium;   Dietary Supplement: Vitamin D;   Dietary Supplement: Calcium;   Dietary Supplement: Placebo
14 Not yet recruiting Oral Vitamin D Substitution Weekly or Monthly and Adherence
Condition: Vitamin D Deficiency
Interventions: Drug: Vitamin D: liquid form, start weekly;   Drug: Vitamin D: liquid form, start monthly;   Drug: Vitamin D: solid form, start weekly;   Drug: Vitamin D: solid form, start monthly
15 Not yet recruiting Prevalence of Early Childhood Caries in Egyptian Children With Serum Vitamin D Deficiency.
Condition: Vitamin D Deficiency
16 Not yet recruiting Follicular Fluid, Bioavailable Vitamin D and Embryo Quality Markers
Condition: Vitamin D Deficiency
17 Not yet recruiting Empirical Comperative Study Of Variation Blood Level Antibody Vitamin D at Different Groups Of Patients Compared Healthy Peoples
Condition: Vitamin D Deficiency
Intervention: Other: Blood samples
18 Recruiting Efficacy of Biofortified Maize to Improve Maternal and Infant Vitamin A Status
Condition: Vitamin A Deficiency
Interventions: Dietary Supplement: Conventional white maize;   Dietary Supplement: Provitamin A carotenoid biofortified maize;   Dietary Supplement: Preformed vitamin A fortified maize
19 Recruiting Study To Understand Fall Reduction and Vitamin D in You
Conditions: Vitamin D Deficiency;   Falls
Interventions: Dietary Supplement: 200 IU/d cholecalciferol;   Dietary Supplement: 1000 IU/d cholecalciferol;   Dietary Supplement: 2000 IU/d cholecalciferol;   Dietary Supplement: 4000 IU/d cholecalciferol
20 Recruiting Vitamin D and Vascular Health in Children
Conditions: Obesity;   Vitamin D Deficiency
Intervention: Dietary Supplement: Vitamin D3

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