Vitamins: all 2,138 studies that test it
Page 8 of 22. Open to participants first (190), then studies with results posted, then the rest; newest registration first within each.
- Effects of Vitamin D on Cardiovascular Health in Black WomenCompletedNCT05656742Not applicable
- Peripheral Immunological Effects of High-dose Vitamin D Treatment in Healthy SubjectsCompletedNCT05654818Not applicable
- Effects of Stoss Therapy of Vitamin D3 on Peri-operative Outcomes in Patients Receiving General SurgeryWithdrawnNCT05650268Not applicable
- Peri-operative Vitamin D Therapy for HepatectomyStatus unknownNCT05650151Not applicable
- Magnesium and Vitamin D Combination for Post-COVID SyndromeCompletedNCT05630339Not applicable
- Immune Mechanisms of Vitamin D to Reduce Chronic Pain After BurnCompletedNCT05619289Phase 2
- Ketotifen in Non-Alcoholic Fatty Liver Disease PatientsCompletedNCT05616442Phase 4
- Respiratory Outcomes After Early Vitamin D Supplementation in Infants Born Extremely PretermActive, not recruitingNCT05615311Phase 1/2
- Effectiveness of Inactive Vitamin D Supplementation in Non-Alcoholic Fatty Liver Disease PatientsStatus unknownNCT05613192Phase 3
- Autologous Tooth Root in Ridge PreservationCompletedNCT05601531Not applicable
- Effect of Colon Delivered Vitamin C on Gut Microbiota and Related Health Biomarkers in Healthy Older AdultsCompletedNCT05598619Not applicable
- Effects of Vitamin D Supplementation on SOD,IL-6 and Insulin Resistance in Type 2 Diabetes Mellitus (DM)Status unknownNCT05596383Not applicable
- Effect of Preoperative High-dose Cholecalciferol in Prevention of Post-thyroidectomy HypocalcaemiaStatus unknownNCT05586529Not applicable
- High Oral Loading Dose of Cholecalciferol in Non-Alcoholic Fatty Liver DiseaseCompletedNCT05578404Phase 2
- Comparative Study Between Febuxostat Versus Vitamin E in Non-alcoholic Steatohepatitis Patients with HyperuricemiaActive, not recruitingNCT05574036Phase 2
- Comparative Study Between Obeticholic Acid Versus Vitamin E in Patients with Non-alcoholic SteatohepatitisActive, not recruitingNCT05573204Phase 2
- 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
- Vitamin C as add-on Therapy in Patients With Acute Herpes ZosterTerminatedNCT05561257Phase 2
- Acceleration of Orthodontic Tooth MovementCompletedNCT05560919Phase 2/3
- Impact of Vitamin C on opioïd Consumption After an Emergency Department Visit for Acute Musculoskeletal PainActive, not recruitingNCT05555576Not applicable
- Effects of Different Doses of Vitamin D on Cancer-related Cognitive Impairment in Patients With Gastrointestinal TumorsStatus unknownNCT05552729Phase 1/2
- Effect of Vitamin K2 in the Treatment of Nocturnal Leg Cramps in Older PopulationCompletedNCT05547750Not applicable
- Evaluation of the Effect of Citicoline and Docosahexaenoic Acid (DHA) on the Visual Function of Patients With GlaucomaCompletedNCT05527106Not applicable
- The Impact of Intravenous Vitamin C Combined With Nerve Blocks on Postoperative Pain and Recovery After Total Knee ArthroplastyCompletedNCT05514197Not applicable
- Effects of Vitamin K on Lower-extremity Function in Adults With Osteoarthritis:Active, not recruitingNCT05505552Not applicable
- The DANish COronary DEcalcification (DANCODE) TrialCompletedNCT05500443Not applicable
- Effect of Ascorbic Acid Final Flush on Post-operative Pain in Mandibular Molars.Status unknownNCT05478044Not applicable
- Effectiveness of Adjuvant Supplements Prior to in IVFCompletedNCT05471453Not applicable
- Vitamin D, Oxidative Stress and Inflammation in HemodialysisCompletedNCT05460338Phase 2/3
- ViDES Trial (Vitamin D Extra Supplementation)Active, not recruitingNCT05459298Not applicable
- 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
- Vitamin D and Curcumin Piperine Attenuates Disease Activity and Cytokine Levels in Systemic Lupus Erythematosus PatientsCompletedNCT05430087Phase 2
- Impact of Vitamin D3 Supplementation in Non-Sjogren Dry Eye Patients With Low Serum Vitamin D LevelCompletedNCT05425914Phase 3
- Treatment of Non-Anemic Iron Deficiency in PregnancyCompletedNCT05423249Not applicable
- Calcitriol Supplementation in COVID-19 PatientsStatus unknownNCT05415254Not applicable
- Pilot Assessment of the Safety of a Combination of Curcumin, Omega-3, and Vitamin D SupplementsCompletedNCT05414838Not applicable
- Effect of Oral Zinc and Vitamin E Supplementation on Short-term Postoperative Outcomes in Cardiac Surgery Patients.CompletedNCT05402826Not applicable
- Effect of Raloxifene Plus Cholecalciferol and Cholecalciferol Alone on the Bone Mineral Density in Postmenopausal Women With OsteopeniaCompletedNCT05386784Phase 4
- HMB Cerebral Palsy Pilot StudyActive, not recruitingNCT05384951Not applicable
- Vitamin D Supplementation and Clinical Outcomes in Severe COVID-19 PatientsStatus unknownNCT05384574Not applicable
- Effects of Vitamin D Supplementation on Obesity, Inflammatory and Metabolic MarkersCompletedNCT05376865Not applicable
- Effect of Vitamin D and Denosumab on Bone Remodelling in Women With Postmenopausal OsteoporosisCompletedNCT05372224Not applicable
- Synergistic Effect of Vitamin D Supplementation in Patients With Vitiligo and Vitamin D DeficiencyCompletedNCT05364567Not applicable
- Pilot Study of Vitamin K2 (MK-7) and Vitamin D3 Supplementation and the Effects on PASC Symptomatology and Inflammatory BiomarkersCompletedNCT05356936Not applicable
- The Effect of Vitamin C and E Therapy on Restless Leg Syndrome in Patients With End Stage Renal Disease on HaemodialysisStatus unknownNCT05350124Phase 3
- Frequency of Hyperparathyroidism in Postmenopausal Osteoporosis and Its TreatmentCompletedNCT05347082Not applicable
- Antiresorptive Effect of Treatment With Risedronate and Vitamin D in Postmenopausal PatientsCompletedNCT05346419Not applicable
- Investigating the Effects of Hydroxyvitamin D3 on Multiple SclerosisStatus unknownNCT05340985Phase 4
- Omega-3 and Vitamin D Supplementation in Breast Cancer WomenCompletedNCT05331807Early Phase 1
- Effectiveness of IV Vitamin C in Reducing Oxidative Stress Associated With Free Flap SurgeryStatus unknownNCT05327348Phase 3
- Effect of Cholecalciferol Supplementation on Disease Activity and Quality of Life of Systemic Lupus Erythematosus Patients .CompletedNCT05326841Phase 3
- Intralesional Vitamin D3 Versus Intralesional Acyclovir in Treatment of Plantar WartsStatus unknownNCT05324904Not applicable
- The Effects of Vitamin D and Calcium Supplementation to Parathyroid Hormone in CHB Patients Treated With TDFCompletedNCT05313477Phase 4
- Effectiveness of Vitamin C Supplementation in Treatment of RicketsCompletedNCT05310760Phase 2/3
- Effect of Audistim® Day/Night on Hearing Comfort and Patient Quality of Life of Patients With Chronic Tinnitus.CompletedNCT05300594Not applicable
- The Effects of Calcitriol on Biomarkers in Diabetic Kidney Disease PatientsStatus unknownNCT05298163Not applicable
- Periodontal Regeneration Using Vitamin A and PRF Compared to PRF Alone Treating Intra-bony DefectsStatus unknownNCT05285293Not applicable
- Vitamin D Supplementation and PTH Response Among Malaysian AdultsCompletedNCT05281107Early Phase 1
- Early High-Dose Vitamin D and Residual β-Cell Function in Pediatric Type 1 DiabetesStatus unknownNCT05270343Phase 3
- Vitamin D Nasal Drops in Post COVID-19 ParosmiaStatus unknownNCT05269017Phase 2
- Effect of Vitamin D Supplement on Disease Activity in SLECompletedNCT05260255Not applicable
- Vitamin D Supplementation on Reported Rates of Taxane-Induced NeuropathySuspendedNCT05259527Phase 2
- Outcome of High Dose Vitamin D on Prognosis of Sepsis Requiring Mechanical VentilationCompletedNCT05244018Phase 4
- Effect of Low-volume (1L) vs Intermediate-volume (2L) Bowel Preparation on Cost-effectiveness and Quality of LifeCompletedNCT05242562Not applicable
- Prevention of Postoperative Hypocalcemia of Oral Vitamin D Supplementation Before Total ThyroidectomyCompletedNCT05216419Phase 4
- Combined Antioxidant Therapy Against Myocardial Reperfusion Injury. Phase I Study.CompletedNCT05215743Phase 1
- Plan D- Vitamin D Supplementation in Psychotic DisordersCompletedNCT05211635Not applicable
- Pharmacokinetics Evaluation of Vitamin D FormulationsCompletedNCT05209425Not applicable
- Vitamin D Supplementation for the Prevention of GDMStatus unknownNCT05208827Early Phase 1
- Effect of Systemic Administration of Vitamin D on the Rate of Orthodontic Tooth Movement - A Randomized Control TrialCompletedNCT05202496Not applicable
- Clinical Efficacy of Megadose Vitamin C in SepsisCompletedNCT05194189Phase 2
- Vitamin C, Hydrocortisone and Thiamine in Patients With Septic ShockTerminatedNCT05192213Phase 3
- 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 K2 Supplements for Muscle RecoveryStatus unknownNCT05161975Not applicable
- Design and Application of Vitamin D Films for Burn Healing After Cauterizing SurgeryCompletedNCT05142072Early Phase 1
- Vitamin D Status and Bone Metabolism Status in Children With Congenital Epidermolysis BullosaStatus unknownNCT05141838Phase 4
- Antioxidants Vitamins and Muscle DamageCompletedNCT05127928Not applicable
- Vitamin D Supplementation and Clinical Improvement in COVID-19CompletedNCT05126602Not applicable
- Vitamin C 4 Care HomesWithdrawnNCT05122481Not applicable
- Vitamin D Supplementation and Improvement of PCOS Therapy and IVF Outcomes in Infertile Saudi WomenStatus unknownNCT05106712Not applicable
- 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 Deficiency in Adults Following a Major Burn InjuryCompletedNCT05084248Phase 4
- Vitamin D and Painful Diabetic NeuropathyStatus unknownNCT05080530Not applicable
- Role of Vitamin D3 Supplementation With Conventional Synthetic Disease Modifying Antirheumatic Drugs(csDMARD) in Rheumatoid Arthritis PatientsCompletedNCT05078502Not applicable
- Vitamin D Supplementation Effect In Children With Pulmonary Tuberculosis TreatmentCompletedNCT05073965Not applicable
- Open Label Randomized Clinical Study to Promote a Healthy Lifestyle in Medical StudentsCompletedNCT05073029Not applicable
- Vitamin k1 and Its Relation to Vascular Calcification in Hemodialysis PatientsCompletedNCT05060809Phase 4
- 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
- The Effect of Oral Vitamin D Supplements on Fusion Outcome in Patients Receiving Elective Lumbar Spinal FusionCompletedNCT05023122Not applicable
- A Study of High-Dose Vit D Versus Standard of Care Vit D SupplementationCompletedNCT05016310Not applicable
- Vitamin D Supplementation for the Prevention of Acute Respiratory Infections: a RCT in Young Finnish MenCompletedNCT05014048Not applicable
- The Effect of Vitamin C on GCF Total Oxidant Capacity in Smoker Patients With PeriodontitisStatus unknownNCT05009355Early Phase 1
- Vit D3 for Early Symptoms of COVID-19Status unknownNCT05008003Not applicable