Vitamins: all 2,138 studies that test it
Page 21 of 22. Open to participants first (190), then studies with results posted, then the rest; newest registration first within each.
- The Effect of Vitamin D Supplementation During Caloric Restriction on Intestinal Calcium AbsorptionCompletedNCT00472654Not applicable
- Cholecalciferol and Calcium Carbonate in Treating Patients With Colon Cancer That Has Been Removed by SurgeryTerminatedNCT00470353Not applicable
- Effect of House Dust Mite Allergen Challenge in Persons Using 1200 mg Gamma Tocopherol SupplementsCompletedNCT00466596Phase 1
- A Phase 4 Study to Determine Dosing of Hectorol® Capsules When Converting From Zemplar® InjectionCompletedNCT00463021Phase 4
- Vitamin D and Blood PressureWithdrawnNCT00459563Not applicable
- A Phase 4 Pharmacokinetic Study of Hectorol Injection and Zemplar Injection in CKD Subjects on HemodialysisCompletedNCT00454350Phase 4
- Study of High-Dose Intravenous (IV) Vitamin C Treatment in Patients With Solid TumorsCompletedNCT00441207Phase 1
- Effect of Diesel Exhaust Particulate Exposures on Endothelial Function in HumansCompletedNCT00434005Not applicable
- Trial of Adjunctive Vitamin D in Tuberculosis TreatmentCompletedNCT00419068Phase 3
- A Phase 4, Conversion Study of Hectorol® Injection to Hectorol® Capsules in Stage 5 CKD Patients on DialysisCompletedNCT00418600Phase 4
- Vitamin D Therapy in Patients With Systemic Lupus Erythematosus (SLE)CompletedNCT00418587Phase 1
- Vitamin A and Very Low Birthweight Babies (VitAL)CompletedNCT00417404Phase 4
- Effect of Vitamin D Supplementation on Health of Low Birth Weight InfantsCompletedNCT00415402Not applicable
- Vitamin D Supplementation to Patients With Type 2 DiabetesCompletedNCT00400491Phase 2
- Evaluation of Colecalciferol Substitution in Dialysis PatientsCompletedNCT00397475Not applicable
- Deworming and Vitamin A (DEVTA) Prepilot StudyCompletedNCT00396500Phase 3
- Bangladesh Vitamin E and Selenium TrialCompletedNCT00392561Not applicable
- High/Low Dose Vit A in Diarrhea/ALRI in Severe PEMCompletedNCT00388921Not applicable
- Antioxidant Supplementation in Pregnant Women With Low Antioxidant StatusCompletedNCT00388856Phase 2
- Effect of an Anti-Oxidant Treatment on Resistin Serum Levels.A Randomized StudyTerminatedNCT00387114Phase 3
- Anti-Oxidant Therapy In Chronic Renal Insufficiency (ATIC) StudyTerminatedNCT00384618Phase 4
- A Phase II Trial of Calcitriol and Naproxen in Patients With Recurrent Prostate CancerTerminatedNCT00383487Phase 2
- Vitamin D Dose-Response Study to Establish Dietary Requirements in InfantsCompletedNCT00381914Phase 2
- Clinical Trial of Vitamin E to Treat Muscular Cramps in Patients With ALSCompletedNCT00372879Phase 3
- NASPI: N-Acetylcysteine vs. Ascorbic Acid for Prevention of Contrast Induced Nephropathy in Renal Insufficiency Undergoing Coronary CatheterizationCompletedNCT00356954Phase 4
- The Effect of High Dose Vitamin C in Burn PatientsWithdrawnNCT00350077Not applicable
- A Trial to Study the Effect of Vitamin D Supplementation on Glucose and Insulin Metabolism in Centrally Obese MenCompletedNCT00347542Not applicable
- L-Ascorbic Acid Depletion to Treat Acute Myeloid Leukemia and Myelodysplastic SyndromesSuspendedNCT00329498Phase 2
- A Study to Evaluate the Effect of Vitamin D Supplementation on Insulin Sensitivity and SecretionCompletedNCT00320853Not applicable
- Calcitriol in the Treatment of Immunoglobulin A (IgA) NephropathyCompletedNCT00319761Phase 4
- Bortezomib, Ascorbic Acid, and Melphalan in Treating Patients With Newly Diagnosed Multiple MyelomaCompletedNCT00317811Phase 2
- Endothelial Function in a Sample Group of Patients From the ICARE StudyCompletedNCT00314379Phase 2/3
- Vitamin E to Prevent Mucositis in Children With CancerCompletedNCT00311116Phase 2/3
- Vitamin D to Slow Progression of Knee OsteoarthritisCompletedNCT00306774Phase 2
- The Prevalence of Vitamin D Deficiency and Effects of Vitamin D Supplementation in HIV-1 Infected PatientsStatus unknownNCT00306410Phase 2
- Pamidronate, Vitamin D, and Calcium for the Bone Disease of Kidney and Heart TransplantationCompletedNCT00302627Not applicable
- Effect of Vitamin D and Calcium on Genes in the ColonCompletedNCT00298545Phase 1
- Daily Vitamin K in Patients on Warfarin With Unstable INRsCompletedNCT00287313Not applicable
- Study of DN-101 (Calcitriol) and Docetaxel in Subjects Previously Enrolled in Studies DN101-002 or DN101-004Status unknownNCT00285675Phase 2
- Bone Mineral Density, Body Composition and Growth Following Severe Burn InjuryTerminatedNCT00285090Phase 1
- Safety of Antioxidants During GYN Cancer CareCompletedNCT00284427Phase 2
- Arsenic Trioxide, Ascorbic Acid, Dexamethasone, and Thalidomide in Myelofibrosis/Myeloproliferative DisorderCompletedNCT00274820Phase 2
- DN-101 in Combination With Docetaxel in Androgen-Independent Prostate Cancer (AIPC) (AIPC Study of Calcitriol Enhancing Taxotere [ASCENT-2])TerminatedNCT00273338Phase 3
- Topical Vitamin A Versus Vehicle Cream in the Treatment of Aged SkinCompletedNCT00272610Phase 2
- Impact of Oral Ibandronate 150 mg Monthly on Structural Properties of Bone in Postmenopausal Osteoporosis (SPIMOS-3D)CompletedNCT00271713Phase 4
- Ascorbic Acid Treatment in CMT1A Trial (AATIC)CompletedNCT00271635Phase 2
- Physicians' Health Study IICompletedNCT00270647Not applicable
- High Dose Vit D Musculoskeletal Symptoms & Bone Density in Anastrozole-Treated Breast Cancer With Marginal Vit D StatusCompletedNCT00263185Early Phase 1
- Arsenic Trioxide and Ascorbic Acid Combined With Bortezomib, Thalidomide, and Dexamethasone in Treating Patients With Relapsed or Refractory Multiple Myeloma or Plasma Cell LeukemiaCompletedNCT00258245Phase 1
- Randomized Study Of Exercise And Vitamin D In Frail Elderly SubjectsTerminatedNCT00249704Phase 1
- Treatment of Obesity With Vitamin D (40.000 IE Per Week for 1 Year)CompletedNCT00243256Phase 2
- Calcitriol, Ketoconazole, and Dexamethasone in Treating Patients With Metastatic or Unresectable Solid TumorsCompletedNCT00238225Phase 1
- Calcitriol and Docetaxel in Treating Patients With Metastatic or Locally Advanced Pancreatic CancerCompletedNCT00238199Phase 2
- Treatment of Newly Diagnosed Ovarian Cancer With AntioxidantsCompletedNCT00228319Phase 1/2
- Arsenic Trioxide, Thalidomide, Dexamethasone, and Ascorbic Acid in Treating Patients With Relapsed or Refractory Multiple MyelomaTerminatedNCT00227682Phase 2
- Deworming and Enhanced Vitamin A Every 6 Month in Rural Indian Children Aged 1-6CompletedNCT00222547Phase 4
- Homocysteine Lowering and Atherosclerosis Reduction Trial (HART)Status unknownNCT00217178Phase 4
- Adjunctive Supplementation of Antioxidants (Vitamins E + C) Plus Omega-3 Fatty AcidsTerminatedNCT00211562Phase 3
- Trial of the Impact of Vitamin A on Maternal MortalityCompletedNCT00211341Phase 3
- Calcium and Vitamin D vs Markers of Adenomatous PolypsCompletedNCT00208793Phase 2
- Vitamin D Administration in the Nursing HomeCompletedNCT00204919Not applicable
- Correction of Vitamin D Inadequacy in Nursing Home ResidentsCompletedNCT00204906Not applicable
- Single-dose Postpartum Vitamin A Supplementation of Mothers and NeonatesCompletedNCT00198718Phase 2
- Trial of Vitamins in HIV Progression and TransmissionCompletedNCT00197743Phase 3
- Effect of Vitamin K on Age-Related Bone Loss and Vascular CalcificationCompletedNCT00183001Phase 3
- Calcitriol, Mitoxantrone, and Prednisone in Treating Patients With Metastatic Prostate CancerCompletedNCT00182741Phase 2
- Can Intravenous Vitamin C Improve Skin Hyperpigmentation in Long-Term Hemodialysis Patients?Status unknownNCT00172302Not applicable
- Zoledronic Acid in the Treatment of Breast Cancer With Minimal Residual Disease in the Bone MarrowTerminatedNCT00172068Phase 2
- Beta-carotene and Alpha-tocopherol Chemoprevention of Second Primary Malignancies in Head and Neck Cancer PatientsCompletedNCT00169845Phase 3
- Vitamin A and Response to EndotoxinStatus unknownNCT00168649Not applicable
- Different Doses of Vitamin A Supplementation and Male and Female Morbidity and MortalityCompletedNCT00168636Phase 4
- Vitamin A Supplementation With Routine Childhood Vaccines and Mortality and MorbidityStatus unknownNCT00168623Phase 4
- Vitamin A Supplementation With Bacille Calmette Guerin (BCG) VaccineStatus unknownNCT00168610Phase 4
- Vitamin A With BCG VaccineCompletedNCT00168597Phase 4
- Different Doses of Vitamin A and Childhood Morbidity and MortalityCompletedNCT00168584Phase 4
- Tocopherol is a Novel Treatment for Cancer Related MucositisWithdrawnNCT00162526Phase 2
- Study to Investigate if Adding Lactulose to Vitamin D and Calcium Has an Effect on the Preservation of Bone in Postmenopausal WomenCompletedNCT00160264Phase 4
- Effects of Vitamin D Supplementation on Antimycobacterial ImmunityCompletedNCT00157066Not applicable
- Effect of Iron and Vitamin E Supplementation on Disease Activity in Patients With Either Crohn's Disease or Ulcerative ColitisTerminatedNCT00152841Phase 2
- Oral Vitamin K for Warfarin Associated CoagulopathyCompletedNCT00143715Phase 3
- The Role of Vitamins E and C in Maintaining Lung Health in People With AsthmaCompletedNCT00142610Phase 1
- Feasibility Study of 2000 IU Per Day of Vitamin D for the Primary Prevention of Type 1 DiabetesCompletedNCT00141986Phase 1
- Treatment of Acute Schizophrenia With Vitamin TherapyCompletedNCT00140166Phase 4
- Early Rehabilitation After Hip FractureStatus unknownNCT00133640Phase 3
- Long-term Impact and Intervention for Diarrhea in BrazilStatus unknownNCT00133406Phase 3
- Vitamin D Treatment for Crohn´s DiseaseStatus unknownNCT00132184Phase 2/3
- Study of Safety and Efficacy of Doxercalciferol in Patients With Chronic Kidney Disease, Stage 3 or 4, and Secondary HyperparathyroidismCompletedNCT00123461Phase 4
- Efficacy and Safety of Pentoxyphilline and Tocopherol on the Fibrosis in Patients With Chronic Hepatitis CTerminatedNCT00119119Phase 3
- Calcitriol in Preventing Prostate Cancer in Patients With Prostatic Intraepithelial NeoplasiaTerminatedNCT00118066Phase 2
- Vitamin A Supplementation in Newborns StudyCompletedNCT00114868Phase 3
- Arsenic Trioxide, Ascorbic Acid, Dexamethasone, and Thalidomide in Treating Patients With Multiple MyelomaWithdrawnNCT00112879Phase 2
- Arsenic Trioxide and Cholecalciferol (Vitamin D) in Treating Patients With Myelodysplastic SyndromesTerminatedNCT00104806Phase 2
- RCT of Antioxidant Therapy to Prevent Preeclampsia in BrazilCompletedNCT00097110Phase 3
- Melphalan, Arsenic Trioxide, and Ascorbic Acid in Treating Patients With Relapsed or Refractory Multiple MyelomaWithdrawnNCT00085345Phase 2
- Calcitriol and Gefitinib With or Without Dexamethasone in Treating Patients With Advanced Solid TumorsCompletedNCT00084708Phase 1
- Gender, Obesity, C-Reactive Protein, and Oxidative StressCompletedNCT00079963Not applicable
- Study to Evaluate the Effects of Zemplar Injection and Calcijex on Intestinal Absorption of CalciumCompletedNCT00073710Phase 4
- Cholecalciferol in Treating Patients With Myelodysplastic SyndromeCompletedNCT00068276Phase 2
- Study of DN101 and Taxotere in Patients With Advanced Non-Small Cell Lung CancerCompletedNCT00066885Phase 1/2
- Investigating the Effect of Vitamin A Supplementation on Retinitis PigmentosaCompletedNCT00065455Phase 1