Not applicableStudy completedNCT02250625What this trial is testingStudy Vitamin D in Healthy IndividualsWho this might be right forVitamin D Deficiency Fujirebio Diagnostics, Inc. 482
Not applicableStudy completedNCT00082420What this trial is testingRetinol Equivalence of Plant Carotenoids in ChildrenWho this might be right forVitamin A Deficiency National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) 32
Not applicableStudy completedNCT03318029What this trial is testingVitamin D Supplementation and Sunlight Exposure in Brazilian Women Living in Opposite Latitudes (The D-SOL Study)Who this might be right forVitamin D Deficiency University of Surrey 136
Not applicableStudy completedNCT04819490What this trial is testingA UK Multicentre, Health-Related Quality of Life Study for Children and Adolescents With XLHWho this might be right forX-Linked Hypophosphataemia Kyowa Kirin Pharmaceutical Development Ltd 32
Not applicableStudy completedNCT06391437What this trial is testingPrevalence Of Vitamin A Deficiency In Critically Ill Children With Sepsis And Its Association With Clinical OutcomesWho this might be right forVitamin A Deficiency in Children Benha University 220
Not applicableEnded earlyNCT02166333What this trial is testingStudy To Understand Fall Reduction and Vitamin D in YouWho this might be right forVitamin D DeficiencyFalls Johns Hopkins University 688
Large-scale testing (Phase 3)Ended earlyNCT05543928What this trial is testingPhase 3 Safety and Efficacy Study of CTAP101 Extended-release Capsules in Children With Secondary HyperparathyroidismWho this might be right forChronic Kidney Disease stage3Chronic Kidney Disease stage4Vitamin d Deficiency+1 more OPKO Health, Inc. 2
Post-approval studies (Phase 4)Study completedNCT03233295What this trial is testingA Prospective, Single-centre, Open-label Study to Confirm the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D DeficiencyWho this might be right forVitamin D Deficiency Kwang Dong Pharmaceutical co., ltd. 108
Large-scale testing (Phase 3)UnknownNCT00752401What this trial is testingVitamin D3 Substitution in Vitamin D Deficient Kidney Transplant RecipientsWho this might be right forKidney TransplantationVitamin D DeficiencyRenal Osteodystrophy Medical University of Vienna 200
Not applicableStudy completedNCT04820465What this trial is testingAnemia in Older AdultsWho this might be right forAnemiaNutritional DeficiencyInflammation Instituto Nacional de Salud Publica, Mexico 829
Not applicableUnknownNCT05950204What this trial is testingEffect of Supplementation With ω-3 Fatty Acids, Vitamin D and Calcium in Patients With Acute Lymphoblastic Leukemia.Who this might be right forAcute Lymphoblastic LeukemiaVitamin d Deficiency Coordinación de Investigación en Salud, Mexico 40
Not applicableLooking for participantsNCT06983847What this trial is testingA Long-term Observational Study to Describe the Use of Vitamin-C Injektopas® 7.5 g in Patients With Vitamin C DeficiencyWho this might be right forDeficiency, Vitamin CChronic DiseaseAcute Disease Pascoe Pharmazeutische Praeparate GmbH 1,000
Not applicableStudy completedNCT04307784What this trial is testingThe Effects of Vitamin D3 Alone and in a Combination With Omega-3 on the Association of C-peptide With Glycemic ControlWho this might be right forVitamin D Deficiency Applied Science Private University 115
Not applicableLooking for participantsNCT07366970What this trial is testingIs There a Benefit From Addition of Exercise in Diabetic Patients With ED Who Complain Low Vitamin D?Who this might be right forDiabetes MellitusErectile DysfunctionVitamin D Deficiency Cairo University 40
Large-scale testing (Phase 3)Study completedNCT00198822What this trial is testingImpact of Maternal Vitamin A or Beta-Carotene Supplementation on Maternal and Infant Mortality in BangladeshWho this might be right forVitamin A DeficiencyMaternal MortalityInfant Mortality Johns Hopkins Bloomberg School of Public Health 59,666
Not applicableStudy completedNCT03521492What this trial is testingVitamin D Status With Early Childhood CariesWho this might be right forEarly Childhood Caries, Vitamin D Deficiency Ministry of Health, Saudi Arabia 60
Not applicableStudy completedNCT05098600What this trial is testingThe Epidemiology, Management and Comorbidities in Alopecia Areata in Czech RepublicWho this might be right forAlopecia AreataAlopecia TotalisAlopecia Universalis+24 more Faculty Hospital Kralovske Vinohrady 123
Very early researchStudy completedNCT01061307What this trial is testingAn Efficacy Trial of Iron, Zinc and Vitamin A Fortified Rice in Children in Satun, ThailandWho this might be right forVitamin A DeficiencyIron DeficiencyZinc Deficiency Swiss Federal Institute of Technology 203
Not applicableStudy completedNCT00427037What this trial is testingCholecalciferol (Vitamin D3) Therapy in Chronic Kidney Disease (CKD) SubjectsWho this might be right forChronic Kidney DiseaseVitamin D Deficiency Atlanta VA Medical Center 34
Post-approval studies (Phase 4)UnknownNCT03228862What this trial is testingOptimal Doses of Ergocalciferol Supplementation for Treatment of Hypovitaminosis D in AdultsWho this might be right forVitamin D2 Supplementation in Vitamin D Insufficiency Chulalongkorn University 360