- Conditions
- Prostate Cancer, Vitamin D Deficiency, Stress Reaction
- Interventions
- cholecalciferol, Standard of Care Prostate Biopsy - collection of 13th core for RNA-seq, Standard of Care Prostate Biopsies at baseline and after one year vitamin D3 supplementation, Allostatic Load
- Drug · Procedure · Diagnostic Test
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 50 Years to 75 Years · Male only
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 169–192
of 553
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Aging Well
- Interventions
- Rejuvant, Placebo
- Dietary Supplement
- Lead sponsor
- Ponce De Leon Health
- Industry
- Eligibility
- 45 Years to 75 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2022
- U.S. locations
- 1
- States / cities
- Indianapolis, Indiana
- Conditions
- Prostate Cancer
- Interventions
- Vitamin D3, Placebo
- Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 19 Years to 90 Years · Male only
- Enrollment
- 130 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2020
- U.S. locations
- 2
- States / cities
- Charleston, South Carolina
- Conditions
- Actinic Keratosis
- Interventions
- Photodynamic therapy (PDT), Vitamin D3
- Drug
- Lead sponsor
- Case Comprehensive Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 75 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio
- Conditions
- Performance Enhancing Product Use
- Interventions
- Sportlegs, Placebo
- Dietary Supplement
- Lead sponsor
- Christopher Bell
- Other
- Eligibility
- 18 Years to 30 Years
- Enrollment
- 19 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024
- U.S. locations
- 1
- States / cities
- Fort Collins, Colorado
- Conditions
- Hypovitaminosis D
- Interventions
- Cholecalciferol, Placebo
- Dietary Supplement
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years to 100 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2017
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D Deficiency
- Interventions
- Prenatal Vitamin, Cholecalciferol (Vitamin D3)
- Drug
- Lead sponsor
- Children's Hospital Medical Center, Cincinnati
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 192 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2012
- U.S. locations
- 1
- States / cities
- Cincinnati, Ohio
- Conditions
- Colorectal Adenomatous Polyps
- Interventions
- Calcium and vitamin D3 combined, Placebo, Calcium, Vitamin D3
- Dietary Supplement · Drug
- Lead sponsor
- Emory University
- Other
- Eligibility
- 30 Years to 74 Years
- Enrollment
- 92 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2013
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Stage I Prostate Cancer AJCC v8, Stage II Prostate Cancer AJCC v8, Stage III Prostate Cancer AJCC v8, Stage IVA Prostate Cancer AJCC v8
- Interventions
- Biospecimen Collection, D Vitamin, Dual X-ray Absorptiometry, Placebo Administration, Quality-of-Life Assessment, Questionnaire Administration
- Procedure · Dietary Supplement · Drug + 1 more
- Lead sponsor
- University of Rochester
- Other
- Eligibility
- 50 Years and older · Male only
- Enrollment
- 240 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2029
- U.S. locations
- 51
- States / cities
- Newark, Delaware • Danville, Illinois • Decatur, Illinois + 39 more
- Conditions
- Healthy Participants
- Interventions
- Influenza virus vaccine, Vitamins A and D, Placebo
- Biological · Dietary Supplement · Other
- Lead sponsor
- St. Jude Children's Research Hospital
- Other
- Eligibility
- 2 Years to 8 Years
- Enrollment
- 87 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2018
- U.S. locations
- 1
- States / cities
- Memphis, Tennessee
- Conditions
- Systemic Lupus Erythematosus, SLE, Lupus
- Interventions
- Vitamin D3, Vitamin D3 placebo
- Drug
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 18 Years and older
- Enrollment
- 57 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 8
- States / cities
- Birmingham, Alabama • San Francisco, California • Boston, Massachusetts + 5 more
- Conditions
- Osteoporosis, Prostate Cancer
- Interventions
- cholecalciferol, calcium gluconate, zoledronic acid
- Dietary Supplement · Drug
- Lead sponsor
- Northwestern University
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 53 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2008
- U.S. locations
- 3
- States / cities
- Chicago, Illinois
- Conditions
- Glomerular Disease
- Interventions
- Cholecalciferol, 2000 or 4000 IUs by mouth daily for 12 weeks
- Dietary Supplement
- Lead sponsor
- Children's Hospital of Philadelphia
- Other
- Eligibility
- 5 Years to 30 Years
- Enrollment
- 32 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2017
- U.S. locations
- 5
- States / cities
- Wilmington, Delaware • Baltimore, Maryland • New Hyde Park, New York + 1 more
- Conditions
- Secondary Hyperparathyroidism Due to Renal Causes, Chronic Kidney Diseases, Vitamin D Deficiency, Stage 5 Chronic Kidney Disease
- Interventions
- Calcifediol Oral Capsule, Placebo oral capsule
- Drug
- Lead sponsor
- OPKO Health, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 44 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2021
- U.S. locations
- 18
- States / cities
- Peoria, Arizona • Phoenix, Arizona • Cypress, California + 13 more
- Conditions
- Osteoporosis
- Interventions
- Vitamin D3, Multivitamin
- Drug · Dietary Supplement
- Lead sponsor
- Leigh Eck, MD
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 22 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Kansas City, Missouri
- Conditions
- Psoriasis
- Interventions
- CD 2027, Calcitriol Vehicle
- Drug
- Lead sponsor
- Galderma R&D
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 88 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2009
- U.S. locations
- 2
- States / cities
- Fridley, Minnesota • Nashville, Tennessee
- Conditions
- Burns, Bone Demineralization
- Interventions
- Vitamin D2, Vitamin D3
- Dietary Supplement
- Lead sponsor
- Shriners Hospitals for Children
- Other
- Eligibility
- 6 Months to 18 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2011
- U.S. locations
- 1
- States / cities
- Cincinnati, Ohio
- Conditions
- Atopic Dermatitis, Vitamin D Deficiency
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- Medical College of Wisconsin
- Other
- Eligibility
- 1 Year to 18 Years
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Milwaukee, Wisconsin
- Conditions
- Leukemia, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms
- Interventions
- cholecalciferol, arsenic trioxide
- Dietary Supplement · Drug
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- Up to 120 Years
- Enrollment
- 5 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2010
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- Conditions
- Cardiovascular Disease
- Interventions
- Cholecalciferol, Placebo
- Dietary Supplement
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 19 Years and older
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2015
- U.S. locations
- 2
- States / cities
- Omaha, Nebraska
- Conditions
- Breast Cancer
- Interventions
- Celecoxib, Placebo, Cholecalciferol
- Drug
- Lead sponsor
- Hartford Hospital
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 45 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2016
- U.S. locations
- 1
- States / cities
- Grand Forks, North Dakota
- Conditions
- Gestational Hypertension, Toxemia, Superimposed Preeclampsia, Eclampsia, HELLP Syndrome
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Stony Brook University
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 412 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2019
- U.S. locations
- 1
- States / cities
- Stony Brook, New York
- Conditions
- Gestational Diabetes
- Interventions
- 4000 IU vitamin D3
- Drug
- Lead sponsor
- University of Minnesota
- Other
- Eligibility
- 18 Years and older · Female only
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2020
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- Conditions
- Vitamin D Deficiency, Accidental Falls
- Interventions
- Vitamin D3, Vitamin E
- Dietary Supplement
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 68 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina