Clinical Trials on Vitamin D or Placebo in United States
Total 383 results
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Rutgers UniversityNational Institute on Aging (NIA)CompletedWeight Loss | Vitamin D or PlaceboUnited States
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University of UlsterNorthern Ireland Executive; HSC Public Health AgencyCompletedVitamin D Status | Vitamin D ConcentrationUnited Kingdom
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Mike O'Callaghan Military HospitalWithdrawnVitamin DUnited States
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Boston UniversityPure North S'Energy FoundationCompletedVitamin D InsufficiencyUnited States
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Creighton UniversityThe UV FoundationCompleted
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Creighton UniversityCompletedVitamin D StatusUnited States
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Boston Children's HospitalCompleted
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University of Wisconsin, MadisonCompletedVitamin D Deficiency | Vitamin D InadequacyUnited States
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University of Wisconsin, MadisonCompletedVitamin D Deficiency | Vitamin D InsufficiencyUnited States
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Tufts UniversityNational Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)Completed
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Boston UniversityCompletedVitamin D Deficiency | Vitamin D InsufficiencyUnited States
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Johns Hopkins UniversityBariatric AdvantageTerminatedVitamin D Deficiency | Vitamin D InsufficiencyUnited States
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University of DelawareRecruiting
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Boston UniversityCompletedVitamin D Deficiency | Vitamin D InsufficiencyUnited States
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University of Colorado, DenverNational Center for Research Resources (NCRR)CompletedVitamin D Deficiency | Vitamin D InsufficiencyUnited States
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University of Missouri, Kansas CityTruman Medical CenterWithdrawnVitamin d DeficiencyUnited States
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VA Office of Research and DevelopmentCompletedFrail Elderly | Vitamin d DeficiencyUnited States
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University of South FloridaCompletedVitamin D 25 OH DeficiencyUnited States
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Wake Forest University Health SciencesNational Institute on Aging (NIA)CompletedPhysical Function | Vitamin D InsufficiencyUnited States
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University of UlsterDairy Council for Northern Ireland; Agri-food & Biosciences Institute; Center...Completed
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University of WashingtonNational Institute of General Medical Sciences (NIGMS)Completed
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King's College LondonVitamax Wholesalers LLPRecruiting
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Sheffield Children's NHS Foundation TrustCompleted
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Fakih IVF Fertility CenterUnknownVITAMIN D DisordersUnited Arab Emirates
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Church & Dwight Company, Inc.Medical University of South CarolinaCompletedMeasure Absorption of Vitamin D in BloodUnited States
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NYU Langone HealthWinthrop University HospitalCompleted
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Church & Dwight Company, Inc.Medical University of South CarolinaCompletedBioequivalence of Vitamin D in Healthy AdultsUnited States
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University of FloridaCompletedVitamin D Deficiency (10 ng/mL to 30 ng/mL)United States
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TakedaCompletedCalcium and Vitamin D DeficienciesUnited Kingdom, Germany
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University of BathBiotechnology and Biological Sciences Research CouncilCompletedVitamin D | Acute ExerciseUnited Kingdom
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University of BirminghamCompletedInfertility | Vitamin D Deficiency | Vitamin D InsufficiencyUnited Kingdom
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Madigan Army Medical CenterTriService Nursing Research ProgramCompleted
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Boston UniversityCompletedVitamin D Deficiency | Vitamin E Deficiency | Hypovitaminosis AUnited States
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ProMedica Health SystemCompletedFocus: to Compare a Commercially Available Energy Drink, B Vitamins, Caffeine Alone, and Placebo for Effectiveness on Perceived Energy Level and WakefulnessUnited States
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University of Colorado, DenverUniversity of Pittsburgh; National Institute of General Medical Sciences (NIGMS)CompletedChronic Kidney Diseases | Deficiency, Vitamin DUnited States
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Bangor UniversityUniversity of East Anglia; University of ManchesterUnknown
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Methodist Health SystemActive, not recruitingFractures, Bone | Fracture | Vitamin D | Fracture NonunionUnited States
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Northwestern UniversityCompleted
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Parkview Medical CenterTerminatedVitamin D DeficiencyUnited States
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Children's Hospital Medical Center, CincinnatiTerminatedVitamin D DeficiencyUnited States
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Emory UniversityCompletedVitamin D DeficiencyUnited States
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Boston UniversityCompleted
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CONRADCompleted
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University of Wisconsin, MadisonNational Institutes of Health (NIH); National Institute on Aging (NIA)Completed
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Tufts UniversityBoston University; National Heart, Lung, and Blood Institute (NHLBI); Boston... and other collaboratorsCompletedVitamin D DeficiencyUnited States
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Tufts UniversityPfizerCompleted
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USDA, Western Human Nutrition Research CenterCompletedVitamin D DeficiencyUnited States
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Creighton UniversityProcter and GambleCompleted
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Creighton UniversityProcter and GambleCompleted
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University of Wisconsin, MadisonWithdrawnVitamin D DeficiencyUnited States