Not applicableStudy completedNCT01229878What this trial is testingVitamin D Supplementation in Kidney DiseaseWho this might be right forRenal DialysisVitamin D Deficiency VA Office of Research and Development 20
Large-scale testing (Phase 3)UnknownNCT04386850What this trial is testingOral 25-hydroxyvitamin D3 and COVID-19Who this might be right forCOVID 19 Tehran University of Medical Sciences 1,500
Not applicableUnknownNCT05981534What this trial is testingThe Effectiveness of Vitamin D Supplementation in Patients With End-stage Knee OsteoarthritisWho this might be right forVitamin D DeficiencySarcopeniaKnee Osteoarthritis Chinese University of Hong Kong 56
Not applicableStudy completedNCT06451016What this trial is testingEffects of Vitamin D Supplementation on Muscle Function Among Grave's Disease PatientsWho this might be right forGraves Disease Frontier Medical and Dental College, Abbotabad 48
Testing effectiveness (Phase 2)Looking for participantsNCT06508099What this trial is testingVitamin A and D Supplementation in Allogeneic HCTWho this might be right forAcute Lymphoblastic LeukemiaAcute Myeloid LeukemiaBiphenotypic Acute Leukemia+5 more St. Petersburg State Pavlov Medical University 220
Post-approval studies (Phase 4)Study completedNCT00592917What this trial is testingOSTPRE-Fracture Prevention StudyWho this might be right forFracturesOsteoporosis Kuopio University Hospital 3,432
Not applicableStudy completedNCT01779908What this trial is testingRole of Vitamin D in the Prevention and Treatment of Diseases Associated With Insulin ResistanceWho this might be right forVitamin D-deficientInsulin-resistant CHU de Quebec-Universite Laval 96
Not applicableStudy completedNCT04121533What this trial is testingVitamin D Supplementation in Knee OsteoarthritisWho this might be right forOsteoarthritis, KneeVitamin D Supplementation Intermountain Health Care, Inc. 73
Not applicableStudy completedNCT01363115What this trial is testingCalcium Supplementation for a Healthy Weight (CaSHeW)Who this might be right forObesityOverweight Massachusetts General Hospital 130
Post-approval studies (Phase 4)Active Not RecruitingNCT02112734What this trial is testingCan Vitamin D Supplementation in the First Year of Life Prevent Food Allergy in Infants? The VITALITY Trial: Parts 1&2Who this might be right forFood Allergy Murdoch Childrens Research Institute 2,739
Post-approval studies (Phase 4)Study completedNCT02999204What this trial is testingEffect of Vitamin D3 Supplementation on Arterial and Bone Remodeling in Chronic Kidney Disease PatientsWho this might be right forRenal Insufficiency, ChronicVascular StiffnessBone Diseases, Metabolic Jewish General Hospital 57
Not applicableLooking for participantsNCT07534852What this trial is testingNIMA-Colon Cancer StudyWho this might be right forColon Cancer Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud 120
Post-approval studies (Phase 4)Study completedNCT01169142What this trial is testingStudy of Vitamin D in the Severely Mentally IllWho this might be right forSchizophreniaSchizoaffective Disorder Bronx Psychiatric Center 40
Testing effectiveness (Phase 2)Study completedNCT02178488What this trial is testingEfficacy Study of Vitamin D Supplementation to Meticillin Resistant Staphylococcus Aureus (MRSA) CarriersWho this might be right forMethicillin Resistant Staphylococcus AureusVitamin D3 Deficiency Peter Bergman 60
Post-approval studies (Phase 4)Study completedNCT02136771What this trial is testingStyrian Vitamin D Hypertension TrialWho this might be right forArterial HypertensionVitamin D Deficiency Medical University of Graz 200
Testing effectiveness (Phase 2)Study completedNCT02786498What this trial is testingOptimal Vitamin D3 Supplementation Strategies for Acute Fracture HealingWho this might be right forFracture University of Maryland, Baltimore 102
Not applicableUnknownNCT03289637What this trial is testingSupplementation With Vitamin D to Patients With Heart Failure (D-Heart).Who this might be right forHeart Failure With Reduced Ejection FractionVitamin D Deficiency Linkoeping University 200
Large-scale testing (Phase 3)UnknownNCT03008057What this trial is testingThe Assessment of the Effect of Vitamin D Supplementation on Inflammatory and Endothelial Factors in the Patients With Type 2 Diabetes .Who this might be right forType2 Diabetes Tehran University of Medical Sciences 42
Not applicableStudy completedNCT02804841What this trial is testingEffects of Vitamin D3 Supplementation on Cognitive Function in Community Dwelling Older AdultsWho this might be right forHealthy University of Dublin, Trinity College 60
Large-scale testing (Phase 3)Study completedNCT01585051What this trial is testingEffect of Vitamin D Supplementation on Blood Pressure and HbA1c Levels in Patients With T2DWho this might be right forDiabetes Mellitus Type 2 Kantonsspital Baselland Bruderholz 51