Vitamin D Deficiency: all 784 studies
Page 7 of 8. Open to participants first (61), then studies with results posted, then the rest; newest registration first within each.
- Vitamin D Status in Lower Extremity Joint Replacement Surgery PatientsWithdrawnNCT01858051Not applicable
- Effects of Treating Vitamin D Deficiency in Poorly Controlled Type 2 DiabetesCompletedNCT01855321Phase 1
- Effects of Vitamin D Insufficiency in ManCompletedNCT01848236Not applicable
- Immunologic Action of a Single Dose CholecalciferolCompletedNCT01845142Phase 4
- Vitamin D as a Supplement Against Falls in Elderly StudyCompletedNCT01827345Not applicable
- Correcting Anemia and Native Vitamin D Supplementation in Kidney Transplant RecipientsTerminatedNCT01817699Phase 4
- Epidemiological Analysis of Vitamin D and Breast Cancer Risk in Saudi Arabian WomenCompletedNCT01817231
- Vitamin D Intervention Trial in Healthy ChineseCompletedNCT01817036Phase 1
- Evaluating Vitamin D Content in MushroomsCompletedNCT01815437Not applicable
- Bioavailability of Vitamin D Encapsulated in Casein Micelles, Compared to Its Bioavailability in a Synthetic Emulsifier Currently Used for Supplementation and Enrichment.Status unknownNCT01807845Not applicable
- Does Vitamin D Deficiency Associated With Hypercoagulability & Increased Thrombin Generation?CompletedNCT01799655
- Vitamin D Status and the Adequacy of Vitamin D Intake in Early Preterm InfantsCompletedNCT01793402
- Vitamin D Levels in Patients With Central Retinal Vein Occlusion- a Prospective Controlled StudyCompletedNCT01793181
- Availability of Vitamin D in Orange JuiceCompletedNCT01778114Not applicable
- Effects of Vitamin D on Inflammation in Liver DiseaseStatus unknownNCT01754961Phase 2
- Comparing Different Amounts of Vitamin D Supplementation to Preschool Children Living in Northern and Southern SwedenCompletedNCT01741324Not applicable
- The Genetics Behind Vitamin D Status (VitDgen)CompletedNCT01741233Not applicable
- Vitamin D Supplementation in Patients With Diabetes Mellitus Type 2CompletedNCT01741181Phase 4
- Effect of Vitamin D Supplementation on Glucose Tolerance in Subjects at Risk for Diabetes With Low Vitamin D.CompletedNCT01726777Phase 2
- Vitamin D Treatment, Pharmacogenetics and Glucose MetabolismCompletedNCT01721915Phase 4
- Multimodal Approach in IBD PatientsStatus unknownNCT01705522
- The Effects of Vitamin D on Glycemic Control and Proinflammatory Markers in Adolescents With T1DMCompletedNCT01697228Not applicable
- Bioefficiency of of Conventional Fish and Vitamin D Fortified FishCompletedNCT01696526Not applicable
- The Effect Of Vitamin D On Measures Of Bone Health And Gene ExpressionCompletedNCT01696409
- The Impact of Severe Vitamin D Deficiency and Its Correction on Bone Mineral Density (BMD) in Postmenopausal WomenCompletedNCT01694355Not applicable
- Effect of Vitamin D Supplementation on Coronary Calcification and Parathyroid Hormone in CKD PatientsStatus unknownNCT01672047Not applicable
- Vitamin D Supplementation in HIV-infected YouthCompletedNCT01656070Phase 2
- Vitamin D, Cardiovascular Disease, and African AmericansCompletedNCT01655810Not applicable
- Vitamin D and PreeclampsiaCompletedNCT01648842
- Calcium and Vitamin D Intakes in ChildrenCompletedNCT01638494Not applicable
- Vitamin D3 Supplementation for Heart Failure PatientsCompletedNCT01636570Phase 2
- Bone Health and Vitamin D StatusCompletedNCT01634607
- The Variability of 25-hydroxyvitamin D Response From Crystalline 25-hydroxyvitamin D3WithdrawnNCT01633658Not applicable
- Vitamin D Deficiency and Postoperative HypocalcemiaStatus unknownNCT01632514Phase 4
- Vitamin D Supplementation for Extremely Preterm InfantsCompletedNCT01600430Phase 2/3
- Vitamin D During PregnancyCompletedNCT01589783
- Vitamin D Supplementation in Overweight/Obese African American Adults and Youth (D-SUNNY)CompletedNCT01583621Not applicable
- The Effect of Vitamin D Repletion in Patients With Hepatocellular Carcinoma on the Orthotopic Liver Transplant ListStatus unknownNCT01575717Not applicable
- Serum Sclerostin Level & Treatment of Vitamin D DeficiencyCompletedNCT01553344
- Cholecalciferol Intervention to Prevent Respiratory Infections StudyCompletedNCT01549938Phase 2
- A Study of 25-hydroxy Vitamin d Levels in Non-itching Hemodialysis PatientsCompletedNCT01548716
- Vitamin D3 Supplementation Pilot StudyCompletedNCT01546103Not applicable
- Impact of Vitamin D Supplementation on Cardiometabolic Risk Factors [The Daily D Health Study]CompletedNCT01537809Not applicable
- Open Label Clinical Trial of Vitamin D in Children With AutismCompletedNCT01535508Phase 2/3
- Comparative Effectiveness of Vitamin D and Repletion StrategiesCompletedNCT01524874Not applicable
- The Effect of Fat on Vitamin D AbsorptionCompletedNCT01519986Not applicable
- Alternative Treatments of Vitamin D DeficiencyCompletedNCT01512537Not applicable
- A Pilot Study of the Effect of Dietary Fat Type and Amount on Vitamin D3 AbsorptionCompletedNCT01508845Not applicable
- Vitamin D Supplementation of Lactating MothersCompletedNCT01506557Phase 4
- Safety and Bioefficacy of Vitamin D2 and Vitamin D3CompletedNCT01503216Not applicable
- Effects of Vitamin D on Beta Cell Function and Insulin Sensitivity in Pre-diabetes and Diabetes Mellitus Type 2CompletedNCT01497132Phase 4
- Sunweavers: Supporting Native American Women's Vitamin D ResearchCompletedNCT01490333Phase 2
- Bioavailability and Biological Effects of Vitamin D2 Contained in MushroomCompletedNCT01488734Not applicable
- Effects of Cholecalciferol Supplementation in Patients With Chronic Heart Failure and LOw vITamind D LevelsStatus unknownNCT01477801Phase 2/3
- Vitamin D and Adipose Tissue InflammationCompletedNCT01477034Not applicable
- Effect of Consumption of Post-harvest UV-B Treated Mushrooms on Vitamin D Status of Healthy AdultsCompletedNCT01443897Not applicable
- How Much Vitamin D is Required to be Protective Against Deficiency During the Winter Months?CompletedNCT01437696Phase 4
- Oral Cholecalciferol in Prevention of Type 2 Diabetes MellitusCompletedNCT01436916Phase 4
- Vitamin D Status in Pediatric AsthmaCompletedNCT01432678
- Determination of Effective Vitamin D Replacement and Monitoring Strategies in Vitamin D Deficiency StateCompletedNCT01430793Not applicable
- The Prevalence of Vitamin D Deficiency in Patients With Alzheimer's DiseaseCompletedNCT01420315
- Vitamin D and Its Affect on Growth Rates and Bone Mineral Density Until Age 5Status unknownNCT01419821Not applicable
- Effect of Vitamin D Supplementation on In-vitro Fertilization (IVF) OutcomesTerminatedNCT01419743
- The Immune and Clinical Impacts of Vitamin D in Patients With Chronic Musculo-skeletal PainStatus unknownNCT01417923Phase 4
- Effects of Vitamin D Supplementation During Pregnancy on Clinical Outcomes and Immune FunctionCompletedNCT01417351Not applicable
- Vitamin D Supplementation in Systemic Lupus ErythematosusCompletedNCT01413230
- Vitamin D and HIV-Cardiovascular Disease in Children and Young AdultsCompletedNCT01410305
- Assessment of Vitamin D Supplementation and Immune FunctionCompletedNCT01399151Not applicable
- Vitamin D and Functional Outcomes After Total Hip Arthroplasty (THA)CompletedNCT01397383
- Rapid vs Maintenance Vitamin D Supplementation in Deficient Children With Asthma to Prevent Exacerbations.CompletedNCT01395589Phase 1
- Vitamin D Replacement in Insulin Resistant South AsiansTerminatedNCT01385345Not applicable
- Impact of Work Environment Absent of Natural Light on Vitamin D LevelsStatus unknownNCT01385085
- Identifying Vitamin D Deficiency in Very Low Birth Weight Infant (VLBW) Infants Part 2CompletedNCT01363167Not applicable
- Effect of Vitamin D Supplementation on Hemoglobin A1cCompletedNCT01354262Phase 2
- Trial to Assess Vitamin D Requirements in Lactating WomenCompletedNCT01349127Not applicable
- Efficacy of Vitamin D3 for the Treatment of Psoriatic Patients With Vitamin D Deficiency and InsufficiencyStatus unknownNCT01339741Not applicable
- Primary Hyperparathyroidism (PHPT): Early Effect of Vitamin DWithdrawnNCT01329666Phase 2/3
- Evaluate the Change in Iron, Vitamin D, and C-Reactive Protein Level (CRP) in a 12 to 24 Week PeriodCompletedNCT01328704
- African American Children, Glycemic Control, and Type 2 DiabetesCompletedNCT01325987Not applicable
- Vitamin D Effect on Calcium Absorption on Persons on HemodialysisCompletedNCT01325610Not applicable
- Hypovitaminosis D : A Link Between Bone/Mineral and Fat/Fuel MetabolismCompletedNCT01315366Phase 3
- Sustainability of Vitamin D Levels After Repletion With Ergocalciferol In Chronic Kidney Disease Stage 5DTerminatedNCT01312441Phase 4
- Vitamin D Supplementation in Chronic Stable Heart FailureCompletedNCT01292720Phase 3
- The Effect of Vitamin D Replacement on Airway Reactivity, Allergy and Inflammatory Mediators in Exhaled Breath Condensate in Vitamin D Deficient Asthmatic ChildrenCompletedNCT01287455Not applicable
- Vitamin D Deficiency in Subjects With Chronic Hepatitis C Compared to Healthy VolunteersWithdrawnNCT01274013
- The Effect of a Meal on Vitamin D AbsorptionCompletedNCT01268176Phase 1
- Role of Vitamin D in Innate Immunity to TuberculosisCompletedNCT01244204Not applicable
- DAYLIGHT: Vitamin D Therapy in Individuals at High Risk of HypertensionCompletedNCT01240512Not applicable
- Vitamin D Supplementation in Breastfeeding WomenCompletedNCT01240265Phase 2/3
- Vitamin D, Diet and Activity StudyCompletedNCT01240213Not applicable
- Asthma, Missed Immunizations, and Vitamin D Deficiency in Atopic DermatitisTerminatedNCT01234909
- Evaluation of the Effectiveness of Vitamin D Supplementation to Pregnant Women and Their Infants in Pakistan.CompletedNCT01229189Not applicable
- Hemodialysis Vitamin D PilotCompletedNCT01214928Not applicable
- Environmental & Genetic Influences on Vitamin D StatusCompletedNCT01208636
- Vitamin D and Muscle Strength and Surface (Electromyography) EMGCompletedNCT01190683Phase 3
- Vitamin D in Pediatric Crohn's DiseaseCompletedNCT01187459Phase 4
- Vitamin D Supplementation in CAD and Postchallenge HyperglycemiaTerminatedNCT01183442Phase 3
- Vitamin D Deficiency in Adolescent GirlsCompletedNCT01180946Not applicable
- Magnitude of Changes in 25 OH Vitamin D3 Levels After Vitamin D3 SupplementationWithdrawnNCT01170507Phase 1/2
- Effect of Vitamin D Oral Supplements on 25 OH Vitamin D LevelsCompletedNCT01170494Not applicable