Not applicableStudy completedNCT01519986What this trial is testingThe Effect of Fat on Vitamin D AbsorptionWho this might be right forVitamin D Deficiency Federal University of Rio Grande do Sul 64
Post-approval studies (Phase 4)Study completedNCT02234544What this trial is testingEffect of an Inhibitor of Cholesterol Absorption on Vitamin D LevelsWho this might be right forVitamin D Deficiency Federal University of Rio Grande do Sul 52
Post-approval studies (Phase 4)Study completedNCT00581828What this trial is testingDoes Treatment of Hypovitaminosis D Increase Calcium Absorption?Who this might be right forOsteoporosisOsteopeniaVitamin D Deficiency+3 more University of Wisconsin, Madison 19
Not applicableStudy completedNCT02714361What this trial is testingInvestigate the Effect of Vitamin D3 Supplementation on Iron Status in Iron Deficient WomenWho this might be right forIron DeficiencyAnemia; Deficiency, Nutritional, With Poor Iron AbsorptionVitamin D Deficiency University of Chester 50
Not applicableActive Not RecruitingNCT05898217What this trial is testingVitamin and Mineral Absorption From Milk and PBMAsWho this might be right forNutritionHealthy Clinical Nutrition Research Center, Illinois Institute of Technology 60
Post-approval studies (Phase 4)Study completedNCT01880346What this trial is testingComparison of Absorption of Vitamin D in Cystic FibrosisWho this might be right forCystic Fibrosis Emory University 17
Not applicableStudy completedNCT00868738What this trial is testingEvaluation of Calcium, Vitamin D, Magnesium, and Zinc Absorption in ChildrenWho this might be right forMineral Absorption Baylor College of Medicine 60
Not applicableStudy completedNCT01508845What this trial is testingA Pilot Study of the Effect of Dietary Fat Type and Amount on Vitamin D3 AbsorptionWho this might be right forVitamin D Deficiency Tufts University 61
Not applicableUnknownNCT03108222What this trial is testingPhosphorus Absorption in Healthy Adults and in Patients With Moderate Chronic Kidney DiseaseWho this might be right forChronic Kidney Disease Mineral and Bone Disorder Purdue University 20
Post-approval studies (Phase 4)Study completedNCT03451019What this trial is testingDifferent Effects of Non-calcium Phosphate Binders on Serum CalciumWho this might be right forChronic Kidney Disease Medical University of Lodz 34
Early research (Phase 1)Study completedNCT02338713What this trial is testingEffect of Calcium 500 mg and Vitamin D3 1000 IU Chewable Tablet on Intestinal Calcium AbsorptionWho this might be right forHealthy Volunteers Takeda 27
Not applicableStudy completedNCT04019379What this trial is testingCalcium and Phosphorus Whole-Body Balance and Kinetics in Patients With Moderate Chronic Kidney DiseaseWho this might be right forPhosphorus and Calcium DisordersChronic Kidney Disease Mineral and Bone DisorderChronic Kidney Diseases University of Minnesota 3
Not applicableStudy completedNCT02100774What this trial is testingEffect of Genetic Variants on Fat-soluble Vitamin BioavailabilityWho this might be right forBiological Availability of Vitamins and Micronutrients Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement 45
Not applicableStudy completedNCT00472654What this trial is testingThe Effect of Vitamin D Supplementation During Caloric Restriction on Intestinal Calcium AbsorptionWho this might be right forWeight LossVitamin D or Placebo Rutgers University 83
Not applicableStudy completedNCT01325610What this trial is testingVitamin D Effect on Calcium Absorption on Persons on HemodialysisWho this might be right forChronic Kidney DiseaseEnd Stage Renal DiseaseVitamin D Deficiency Creighton University 37
Not applicableStudy completedNCT01119378What this trial is testingStudy to Observe the Capability to Absorb Calcium as an Measure of Adequate Levels of Vitamin DWho this might be right forPostmenopausalVitamin D Deficiency Winthrop University Hospital 76
Post-approval studies (Phase 4)Study completedNCT04118010What this trial is testingVitamin D and Prebiotics for Intestinal Health in Cystic FibrosisWho this might be right forCystic FibrosisDysbiosis Emory University 40
Post-approval studies (Phase 4)Study completedNCT00933244What this trial is testingTreatment of Vitamin D InsufficiencyWho this might be right forVitamin D Deficiency University of Wisconsin, Madison 230
Not applicableUnknownNCT05394207What this trial is testingEvaluation Of The Effect Of L. Casei DG® On Vitamin D Absorption In Patients Under Vitamin D Supplementation.Who this might be right forVitamin D Deficiency SOFAR S.p.A. 46
Not applicableStudy completedNCT06721637What this trial is testingEffect of Core Stability Exercise Versus Whole Body Vibration in Improving Vitamin D Absorption in WomenWho this might be right forVitamin D Absorption October 6 University 40