Not applicableStudy completedNCT00829972What this trial is testingVitamin D Levels in Children Undergoing Adenotonsillectomies and ControlsWho this might be right forTonsillitis University of Chicago 60
Not applicableStudy completedNCT03596554What this trial is testingX-linked Hypophosphatemia and FGF21Who this might be right forX-linked Hypophosphatemia Hospices Civils de Lyon 39
Early research (Phase 1)Study completedNCT00976339What this trial is testingStudy of Vitamin D for Premenopausal Women at High Risk for Breast CancerWho this might be right forBreast Cancer Katherine D. Crew 20
Post-approval studies (Phase 4)Study completedNCT00803712What this trial is testing20070360 Incident DialysisWho this might be right forChronic Kidney DiseaseSecondary Hyperparathyroidism Amgen 313
Not applicableStudy completedNCT00204919What this trial is testingVitamin D Administration in the Nursing HomeWho this might be right forVitamin D DeficiencyOsteoporosis University of Wisconsin, Madison 96
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
Very early researchLooking for participantsNCT05045066What this trial is testingImmunological Effects of Vitamin D Replacement Among Black/African American Prostate Cancer PatientsWho this might be right forLocalized Prostate CarcinomaStage IV Prostate Cancer AJCC v8Locally Recurrent Prostate Carcinoma+1 more Mayo Clinic 220
Not applicableWithdrawnNCT05650268What this trial is testingEffects of Stoss Therapy of Vitamin D3 on Peri-operative Outcomes in Patients Receiving General SurgeryWho this might be right forVitamin D DeficiencySurgery National Taiwan University Hospital
Large-scale testing (Phase 3)Study completedNCT02327091What this trial is testingThe Effect of Alfacalcidol on Muscle Strength in Elderly Indonesian Women : A Randomized Controlled TrialWho this might be right forMuscle Weakness Universitas Indonesia 122
Not applicableStudy completedNCT05506696What this trial is testingVitamin D Supplementation StudyWho this might be right forColorectal CancerVitamin D Deficiency University of Edinburgh 122
Early research (Phase 1)Study completedNCT00536276What this trial is testingEvaluation of Vitamin D Status in Children With Acute BurnsWho this might be right forBurnsBone Demineralization Shriners Hospitals for Children 50
Not applicableStudy completedNCT04525820What this trial is testingHigh Dose Vitamin-D Substitution in Patients With COVID-19: a Randomized Controlled, Multi Center StudyWho this might be right forCovid19Vitamin D DeficiencyCorona Virus Infection+3 more Prof. Dr. Jörg Leuppi 80
Not applicableStudy completedNCT01215682What this trial is testingVitamin D Supplementation and Upper Respiratory Tract Infections in Adolescent SwimmersWho this might be right forUpper Respiratory Tract Infections Sheba Medical Center 82
Not applicableStudy completedNCT00783159What this trial is testingFit in the Aged by Professional TrainingWho this might be right forFrailtySarcopenia University of Erlangen-Nürnberg Medical School 69
Testing effectiveness (Phase 2)Study completedNCT02100423What this trial is testingCurcumin and Cholecalciferol in Treating Patients With Previously Untreated Stage 0-II Chronic Lymphocytic Leukemia or Small Lymphocytic LymphomaWho this might be right forContiguous Stage II Small Lymphocytic LymphomaNoncontiguous Stage II Small Lymphocytic LymphomaStage 0 Chronic Lymphocytic Leukemia+3 more Paolo Caimi, MD 35
Testing effectiveness (Phase 2)UnknownNCT05269017What this trial is testingVitamin D Nasal Drops in Post COVID-19 ParosmiaWho this might be right forParosmia Menoufia University 60
Not applicableStudy completedNCT03253055What this trial is testingThe D-BIICEP StudyWho this might be right forVitamin D Deficiency University of Surrey 50
Testing effectiveness (Phase 2)Study completedNCT00508885What this trial is testingThe Effect of Oral Niacinamide on Plasma Phosphorus Levels in Peritoneal Dialysis PatientsWho this might be right forHyperphosphatemia Washington University School of Medicine 17
Not applicableLooking for participantsNCT07141043What this trial is testingAssessment of Mineral and Bone Disorders in Kidney Transplant RecipientsWho this might be right forHemodyalysisKidney TansplantOsteoporosis+1 more Grigore T. Popa University of Medicine and Pharmacy 180
Early research (Phase 1)Study completedNCT01268176What this trial is testingThe Effect of a Meal on Vitamin D AbsorptionWho this might be right forVitamin D Deficiency Tufts University 62