Vitamin D: all 520 studies that test it
Page 2 of 6. Open to participants first (50), then studies with results posted, then the rest; newest registration first within each.
- Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART)CompletedNCT00920621Phase 3Results posted
- Effect of Supplemental Vitamin D on Skeletal Muscle Function in Chronic Obstructive Pulmonary Disease (COPD) PatientsCompletedNCT00914810Phase 3Results posted
- Vitamin D for the Treatment of Women With Polycystic Ovary Syndrome (PCOS)CompletedNCT00907153Phase 1/2Results posted
- Ph I/II of Vitamin D on Bone Mineral Density & Markers of Bone ResorptionTerminatedNCT00904423Phase 1/2Results posted
- Thiazolidinedione Intervention With Vitamin D EvaluationTerminatedNCT00879970Phase 4Results posted
- Vitamin D in Minorities With PrediabetesCompletedNCT00876928Not applicableResults posted
- Vitamin D3 for Aromatase Inhibitor Induced ArthralgiasCompletedNCT00867217Phase 2Results posted
- A Study of the Bioequivalence of 70-mg Alendronate and 70-mg Alendronate in Combination With 5600 IU Vitamin D (MK0217A-253)CompletedNCT00803790Phase 1Results posted
- Calcium and Vitamin D to Optimize Bone Mass in Boys With Risperidone-induced HyperprolactinemiaCompletedNCT00799383Phase 3Results posted
- Vitamin D Supplementation in Crohn's PatientsCompletedNCT00742781Phase 1Results posted
- Vitamin D for Painful Nocturnal Leg CrampsTerminatedNCT00715429Not applicableResults posted
- Impact on Reducing the Incidence of Low Serum Calcium by Providing Educational Materials on the Need to Take Daily Supplemental Calcium and Vitamin D to Patients With Paget's Disease Treated With Reclast®CompletedNCT00668200Phase 4Results posted
- Development of Vitamin D as a Therapy for Breast Cancer - Phase 2CompletedNCT00656019Phase 2Results posted
- Vitamin D for ChemopreventionCompletedNCT00585637Phase 1Results posted
- Does Treatment of Hypovitaminosis D Increase Calcium Absorption?CompletedNCT00581828Phase 4Results posted
- Vitamin D and Soy Supplements in Treating Patients With Recurrent Prostate CancerCompletedNCT00499408Phase 2Results posted
- Vitamin D Effects in Overweight PatientsCompletedNCT00493012Not applicableResults posted
- Treatment of Hypovitaminosis D in Rheumatoid ArthritisCompletedNCT00423358Not applicableResults posted
- A Severity-Adapted Clinical Trial of Diminished Bone Mineral Density in Acute Lymphoblastic Leukemia SurvivorsCompletedNCT00186901Phase 3Results posted
- MOBILE Study - A Study of Bonviva (Ibandronate) Regimens in Women With Post-Menopausal OsteoporosisCompletedNCT00048061Phase 3Results posted
- Vitamin D Therapy to Prevent Recurrent Preeclampsia in High-Risk PregnanciesCompletedNCT07717931Phase 4
- Effect of Isoflavone and Vitamin D Supplementation on Serum Vitamin D Levels, Body Composition, Inflammatory Markers, and Quality of Life in Patients With Inflammatory Bowel DiseaseCompletedNCT07656233Not applicable
- Cardioprotective Effect of Melatonin Versus Vitamin D in Breast Cancer Patients Receiving DoxorubicinCompletedNCT07349459Not applicable
- Comparison of Different Doses of Vitamin D Supplementation on Glycated Haemoglobin and Blood Glucose Parameters With Type II Diabetes Mellitus Having Vitamin d DeficiencyActive, not recruitingNCT07321223Not applicable
- Vitamin D Versus Desmopressin Versus Combination Therapy in Children With Primary Monosymptomatic Nocturnal Enuresis and Vitamin D DeficiencyCompletedNCT07292753Not applicable
- Therapeutic Efficacy of Nutritional Supplementation in Cachexia Associated With Chronic Pulmonary DiseaseCompletedNCT07288619Not applicable
- Effect of Vitamin D on Body Composition and Functionality of Older AdultsCompletedNCT07275177Not applicable
- Evaluation the of Role of Vitamin D Supplement on Tumor Response, Inflammation and Apoptosis in Patients With Stage II or III Colorectal Cancer Receiving Chemotherapy.CompletedNCT07241247Phase 4
- Evaluation of the Role of N Acetyl Cysteine and Vitamin D in Improving Outcomes After Corrosive IngestionActive, not recruitingNCT07229456Phase 3
- Evaluation of the Role of Vitamin D in Reducing the Severity and Duration of Rotavirus Infection in Iraqi ChildrenCompletedNCT07167797Not applicable
- Can Vitamin D Reduce the Burden of COVID-19?CompletedNCT07128069Not applicable
- Curcumin, Vitamin D and Green Tea in IBS-DCompletedNCT07052890Not applicable
- Effect of Vitamin D Deficiency on the Structure of Titanium Platelet-Rich FibrinCompletedNCT06870786Not applicable
- Impact of Vitamin D in Rheumatoid ArthritisCompletedNCT06716476Phase 4
- The Effect of Vitamin D3 Supplementation on Hepcidin and Ferritin Serum Levels in Children With Chronic Kidney DiseaseCompletedNCT06706271Phase 2/3
- Validation of a Novel Functional Food Designed to Meet the Nutritional Needs of People Living With Parkinson's DiseaseActive, not recruitingNCT06697626Not applicable
- Effect of Vitamin D Supplementation on Severity of Stress Urinary Incontinence in Premenopausal Women With Vitamin D InsufficiencyCompletedNCT06689813Not applicable
- Effect of Vitamin D Supplementation as Adjuvant Therapy in Neonatal Jaundice in Combination With PhototherapyCompletedNCT06650293Not applicable
- The Impact of Vitamin D Supplementation in Hypertensive Vitamin D Deficient Patients.CompletedNCT06645041Not applicable
- Acute Vitamin D Supplementation on Testosterone in FemalesActive, not recruitingNCT06610968Not applicable
- Clinical Relationship Between Vitamin D-mediated Th17 and Treg Cells and Parkinson's DiseaseCompletedNCT06539260Early Phase 1
- Efficacy and Mechanism of High-Dose Vitamin D Supplementation in Pediatric OAB-Dry: A Randomized Clinical Trial Integrating Urinary Myelin Basic Protein as a Theranostic BiomarkerCompletedNCT06489951Not applicable
- The Effectiveness of Combining Ursodeoxycholic Acid With Vitamin D in Treating Patients With Primary Biliary CholangitisCompletedNCT06309589Not applicable
- Effect of Vitamin D on Skeletal Muscle Function and Qol in Patients With Chronic Intestinal Failure/InsufficiencyCompletedNCT06283615Not applicable
- Comparıson Of Electromyography Results Before And After Vıtamın D Treatment In Patıents Wıth Carpal Tunnel SyndromeCompletedNCT06282640Phase 4
- Vitamin D & Levothyroxine Combination Versus Levothyroxine on Lipid Profile in HypothyroidismCompletedNCT06276205Phase 3
- Vitamin D Sulfates in BreastmilkCompletedNCT06203041Not applicable
- Synergistic Effect of Vitamin E & D in Reducing Risk of Effects Associated With Atypical Anti-psychoticsCompletedNCT06200584Not applicable
- Comparative Evaluation of the Effectiveness of Diclofenac Sodium Versus Vitamin D on Myofascial PainCompletedNCT06111573Phase 4
- Supplementation With Vitamin D3 on Chronic Low Back Pain PatientCompletedNCT06082375Not applicable
- Comparison of Bioavailability of Liposomal and Traditional Formulation of Vitamin D3CompletedNCT06010121Not applicable
- Role of Vitamin D Therapy in Recovery From Early Neonatal Sepsis (Randomized Controlled Trial)CompletedNCT05969327Phase 3
- Supplementation and Depressive Symptomatology Incidence Among Saudi Arabian AdultsCompletedNCT05916053Not applicable
- Role of Vit-D Supplementation on BioNTech, Pfizer Vaccine Side Effect and Immunoglobulin G ResponseCompletedNCT05851313Phase 3
- Vitamin D Supplementation in Healthy Adults in Prolonged Endurance ExerciseStatus unknownNCT05781620Not applicable
- Vitamin D in Healthy Adults After Strenuous Endurance ExerciseCompletedNCT05779410Not applicable
- Effect of Serum Vitamin D Level on the Efficacy of Peg-interferon Treatment in CHBCompletedNCT05753280Phase 4
- Oral Nano Vitamin D Supplementation Efficacy in Inflammatory Bowel DiseaseStatus unknownNCT05733117Phase 4
- Different Regimens of Vitamin D in Treatment of Children With Chronic Liver DiseaseCompletedNCT05717569Not applicable
- Serum Prolidase Activity and the Role of Leptin in OsteomalaciaStatus unknownNCT05716750Not applicable
- Effects of Vitamin D on Cardiovascular Health in Black WomenCompletedNCT05656742Not applicable
- Peripheral Immunological Effects of High-dose Vitamin D Treatment in Healthy SubjectsCompletedNCT05654818Not applicable
- Peri-operative Vitamin D Therapy for HepatectomyStatus unknownNCT05650151Not applicable
- Magnesium and Vitamin D Combination for Post-COVID SyndromeCompletedNCT05630339Not applicable
- Respiratory Outcomes After Early Vitamin D Supplementation in Infants Born Extremely PretermActive, not recruitingNCT05615311Phase 1/2
- Effects of Vitamin D Supplementation on SOD,IL-6 and Insulin Resistance in Type 2 Diabetes Mellitus (DM)Status unknownNCT05596383Not applicable
- Relationship Between Serum Vitamin D and Outcomes of Liver Transplantation in Cirrhotic Patients Undergoing Liver Transplantation and Effects of Vitamin D Supplementation in Post-transplant PeriodStatus unknownNCT05568836Phase 1/2
- Effects of Different Doses of Vitamin D on Cancer-related Cognitive Impairment in Patients With Gastrointestinal TumorsStatus unknownNCT05552729Phase 1/2
- Dose Estimation of Jarlsberg Cheese in Young, Active Norwegian Cross-country Skiers (XCS)CompletedNCT05447936Not applicable
- Impact of Vitamin D Supplementation on COVID-19 Vaccine Response and IgG Antibodies in Deficient Women.CompletedNCT05447065Not applicable
- Association of Cathelicidin and Vitamin D Levels With the Category and Course of COPDCompletedNCT05431218Phase 4
- Impact of Vitamin D3 Supplementation in Non-Sjogren Dry Eye Patients With Low Serum Vitamin D LevelCompletedNCT05425914Phase 3
- Pilot Assessment of the Safety of a Combination of Curcumin, Omega-3, and Vitamin D SupplementsCompletedNCT05414838Not applicable
- Effects of Vitamin D Supplementation on Obesity, Inflammatory and Metabolic MarkersCompletedNCT05376865Not applicable
- Antiresorptive Effect of Treatment With Risedronate and Vitamin D in Postmenopausal PatientsCompletedNCT05346419Not applicable
- Omega-3 and Vitamin D Supplementation in Breast Cancer WomenCompletedNCT05331807Early Phase 1
- Intralesional Vitamin D3 Versus Intralesional Acyclovir in Treatment of Plantar WartsStatus unknownNCT05324904Not applicable
- Vitamin D Supplementation and PTH Response Among Malaysian AdultsCompletedNCT05281107Early Phase 1
- Plan D- Vitamin D Supplementation in Psychotic DisordersCompletedNCT05211635Not applicable
- The Effect of Vitamin D and Calcium Supplementation on the Prevention of Stress Fractures.Status unknownNCT05186194Not applicable
- Vitamin D Improves Clinical Manifestations in Asthmatic ChildrenCompletedNCT05167617Phase 1
- Severity of COVID-19 and Vitamin D SupplementationStatus unknownNCT05166005Phase 4
- Vitamin D Status and Bone Metabolism Status in Children With Congenital Epidermolysis BullosaStatus unknownNCT05141838Phase 4
- The Efficacy of Vitamin D Supplementation in Patients With Severe and Extremely Severe COVID-19CompletedNCT05092698Not applicable
- Vitamin D as a Prognostic Marker on Assisted Reproductive Technologies Outcomes.CompletedNCT05091203Not applicable
- Vitamin D Supplementation Effect In Children With Pulmonary Tuberculosis TreatmentCompletedNCT05073965Not applicable
- The Investigation of Vitamin D and Menstrual Cycles Trial, the inVitD Trial: A Phase II Clinical TrialCompletedNCT05050916Phase 2
- COVID-19 Morbidity in Healthcare Workers and Vitamin D SupplementationCompletedNCT05037253Phase 4
- DAILY: Vitamin D, Aspirin, ExercIse, Low Saturated Fat Foods StudY in Colorectal Cancer Patients With Minimal Residual DiseaseCompletedNCT05036109Not applicable
- A Study of High-Dose Vit D Versus Standard of Care Vit D SupplementationCompletedNCT05016310Not applicable
- Vitamin D and Calcium Supplementation at Danish Nursing HomesCompletedNCT04956705Not applicable
- Short Term, High Dose Vitamin D Supplementation in Moderate to Severe COVID-19 DiseaseCompletedNCT04952857Phase 4
- Optimization of Blood Levels of 25(OH)-Vitamin D in African AmericansCompletedNCT04939792Early Phase 1
- Absorption Kinetics and Efficacy of Vitamin D Enriched Supplements in Older Adults.CompletedNCT04935034Not applicable
- Effect of Vitamin D Oral Supplementation in Poly Csytic Ovarian Women Resistant to Clomiphene CitrateStatus unknownNCT04916925Phase 1/2
- Vitamin D Supplementation in Intensive Care Unit PatientsCompletedNCT04915963Phase 3
- Oral Vitamin D Supplementation Combined With Phototherapy as a Treatment for VitiligoCompletedNCT04872257Not applicable
- Vitamin D and Pre Cachexia and Cancer Cachexia in Epithelial Ovarian CancerStatus unknownNCT04864431Not applicable
- Correlation Between Vitamin D and Symptoms Severity of Autonomic Nervous Mediated Syncope Child and it 's RAASStatus unknownNCT04844957Early Phase 1
- Vitamin D, Omega-3, and Combination Vitamins B, C and Zinc Supplementation for the Treatment and Prevention of COVID-19WithdrawnNCT04828538Not applicable