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923 studies found for:    Open Studies | vitamins
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Rank Status Study
21 Recruiting Vitamin D to Prevent Severe Asthma Exacerbations (Vit-D-Kids Asthma)
Condition: Asthma
Interventions: Drug: vitamin D3 4000 IU;   Drug: Placebo
22 Recruiting Vitamin K1 to Slow Progression of Vascular Calcification in HD Patients
Condition: Cardiovascular Diseases
Intervention: Drug: Vitamin K1
23 Recruiting Does Vitamin D Break the Vicious Circle of Polycystic Ovarian Syndrome of Insuline Resistance ?
Condition: PCOS
Interventions: Drug: Vitamin D;   Drug: placebo
24 Recruiting Effect of Vitamin D3 Supplementation on Arterial and Bone Remodeling in Chronic Kidney Disease Patients
Conditions: Renal Insufficiency, Chronic;   Vascular Stiffness;   Bone Diseases, Metabolic
Intervention: Drug: Vitamin D3
25 Recruiting Vitamin D Supplementation in Cutaneous Malignant Melanoma Outcome
Condition: Cutaneous Malignant Melanoma
Interventions: Drug: Vitamin D;   Drug: arachides oleum raffinatum
26 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
27 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
28 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
29 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
30 Recruiting Evaluation of Vitamin K Supplementation for Calcific Uremic Arteriolopathy
Conditions: Calciphylaxis;   Calcific Uremic Arteriolopathy
Interventions: Dietary Supplement: Vitamin K;   Other: Placebo
31 Not yet recruiting Vitamin D to Improve Outcomes by Leveraging Early Treatment
Conditions: Acute Respiratory Distress Syndrome;   Vitamin D Deficiency;   Critical Illness
Interventions: Drug: Vitamin D3;   Drug: Placebo
32 Recruiting High Dose Vitamin D Supplementation in Chronic Spontaneous Urticaria
Condition: Urticaria
Interventions: Drug: Vitamin D3 (High dose);   Drug: Vitamin D3 (Low dose)
33 Recruiting Treatment of Reperfusion Event by Vitamin C Infusion
Condition: Angina Pectoris
Interventions: Drug: Vitamin C;   Drug: Placebo
34 Not yet recruiting Roles of Vitamin D and HDL in Obese Children
Conditions: Obese;   Vitamin D Deficiency;   Low HDL
Intervention: Dietary Supplement: Vitamin D
35 Recruiting Effectiveness of Vitamin D Supplementation
Conditions: Elevated Blood Pressure;   Endothelial Dysfunction
Intervention: Dietary Supplement: 2,000 International Units (IU)of vitamin D3
36 Recruiting Preventive and Reversional Effect of Vitamin D on Parenteral Nutrition Associated Liver Disease
Condition: Liver Disease
Intervention: Drug: Vitamin D
37 Not yet recruiting Vitamin and Mineral Supplementation Post Bariatric Surgery
Condition: Complications of Other Bariatric Procedure
Intervention: Dietary Supplement: Vitamins and Minerals
38 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
39 Recruiting Effectiveness of High Dose Vitamin D Supplementation in Stage III Colorectal Cancer
Conditions: Colon Cancer;   Rectal Cancer
Intervention: Dietary Supplement: cholecalciferol
40 Not yet recruiting The Effects of LycoRed Phytonutrient and Vitamin Supplement (a.k.a. LYC-001e) on Ocular Blood Flow
Condition: Ocular Blood Flow
Intervention: Dietary Supplement: phytonutrient and vitamin supplement

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