Not applicableUnknownNCT02862496What this trial is testingBone Health in Hyperemesis GravidarumWho this might be right forHyperemesis Gravidarum Kayseri Education and Research Hospital 60
Not applicableUnknownNCT05040269What this trial is testingSerum Levels of Vitamin D,Calcium and Magnesium in Preschool Recurrent WheezersWho this might be right forRecurrent Wheezes Sohag University 30
Large-scale testing (Phase 3)Study completedNCT06706271What this trial is testingThe Effect of Vitamin D3 Supplementation on Hepcidin and Ferritin Serum Levels in Children With Chronic Kidney DiseaseWho this might be right forChronic Kidney Disease Stage 1Chronic Kidney Disease Stage 2 Hasanuddin University 43
Post-approval studies (Phase 4)Study completedNCT05101811What this trial is testingVitamin D Levels in Women With Polycystic Ovary SyndromeWho this might be right forPolycystic Ovary Syndrome Ghamra Military Hospital 90
Not applicableUnknownNCT04906161What this trial is testingVitamin D and Serum Calcium Level Insufficiency and Early Dental Implant FailureWho this might be right forVitamin D DeficiencyDental Implant Failure Nos Ain Shams University 30
Not applicableActive Not RecruitingNCT06232486What this trial is testingRelationship Between Serum Vitamin D Levels and Postherpetic Neuralgia.Who this might be right forPostherpetic Neuralgia Feng Gao 144
Testing effectiveness (Phase 2)Study completedNCT01354262What this trial is testingEffect of Vitamin D Supplementation on Hemoglobin A1cWho this might be right forDiabetes MellitusVitamin D Deficiency Ascension Health 150
Very early researchStudy completedNCT01988116What this trial is testingEffects of Vitamin D Replacement on Hormones Regulating Iron Metabolism in Individuals With Chronic Kidney DiseaseWho this might be right forChronic Kidney DiseaseAnemia of Chronic Disease University of Alabama at Birmingham 40
Not applicableUnknownNCT02317718What this trial is testingSerum Vitamin D Level and Its Association With Ovarian Reserve and IVF OutcomeWho this might be right forVITAMIN D Disorders Fakih IVF Fertility Center 500
Not applicableStudy completedNCT06871631What this trial is testingSerum Vitamin D and Gingival Crevicular Fluid Levels of Osteocalcin and N-Terminal TelopeptideWho this might be right forD Vitamin DeficiencyOsteocalcinGingival Crevicular Fluid Ondokuz Mayıs University 120
Not applicableStudy completedNCT04967469What this trial is testingComparison of Serum Calcium Level Between Preoperative Vitamin D and Non-vitamin D Regimen of Total Parathyroidectomy in End-stage Renal Failure Patients in Rajavithi HospitalWho this might be right forEnd Stage Renal Disease Department of Medical Services Ministry of Public Health of Thailand 60
Not applicableStudy completedNCT00473317What this trial is testingSunlight Exposures Effect on Serum Vitamin D LevelsWho this might be right forVitamin D Deficiency Creighton University 6
Large-scale testing (Phase 3)Study completedNCT01240265What this trial is testingVitamin D Supplementation in Breastfeeding WomenWho this might be right forVitamin D DeficiencyRicketsInfant Nutrition Disorders Mayo Clinic 80
Not applicableStudy completedNCT04174625What this trial is testingThe Effect of Omega 3 on 25 Hydroxyvitamin DWho this might be right for25-hydroxyvitamin D Levels Applied Science Private University 80
Not applicableStudy completedNCT00910260What this trial is testingImpact on UVB Narrow Band and UVA1 Therapy on Serum 25-hydroxyvitamin D LevelsWho this might be right forSkin Disease University of Zurich 116
Not applicableStudy completedNCT03923218What this trial is testingEffects of Smoking and Vitamin D3 on the Levels of Human Cathelicidin Peptide LL-37Who this might be right forPeriodontitis Gazi University 60
Large-scale testing (Phase 3)UnknownNCT06054919What this trial is testingThe Effect of Vitamin D3 Therapy on Vitamin D Status in Pregnant Women With Vitamin D Deficient and InsufficientWho this might be right forVitamin D Deficiency Universitas Indonesia 52
Not applicableStudy completedNCT01919905What this trial is testingMozzarella Cheese Vitamin D and BioavailabilityWho this might be right forChange in Serum 25 Hydroxyvitamin D Levels University of Toronto 100
Post-approval studies (Phase 4)Study completedNCT05753280What this trial is testingEffect of Serum Vitamin D Level on the Efficacy of Peg-interferon Treatment in CHBWho this might be right forChronic Hepatitis b Third Affiliated Hospital, Sun Yat-Sen University 90
Not applicableStudy completedNCT01698840What this trial is testingEffect of Vitamin D in Diets of Preterm InfantsWho this might be right forPremature Infants Baylor College of Medicine 39