- Conditions
- Male Infertility
- Interventions
- Antioxidant Supplement, Placebo
- Drug · Other
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 171 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2018
- U.S. locations
- 10
- States / cities
- Los Angeles, California • San Francisco, California • Sunnyvale, California + 7 more
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 385–408
of 553
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Osteoporosis
- Interventions
- Alendronate
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 5 Years to 15 Years
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2009
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- Parkinson Disease, Accidental Falls
- Interventions
- Vitamin D3, calcium, Placebo
- Drug · Dietary Supplement · Other
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 50 Years to 99 Years
- Enrollment
- 101 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- Portland, Oregon
- Conditions
- Vitamin D Deficiency
- Interventions
- Ergocalciferol, Calcitriol
- Dietary Supplement
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 42 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- X-linked Hypophosphatemia, Hypophosphatemic Rickets, Hypophosphatemic Rickets, X-Linked Dominant
- Interventions
- Calcitriol
- Drug
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 3 Years to 70 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2026
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Respiratory Failure
- Interventions
- Enteral Vitamin D3 50,000 IU, Enteral Vitamin D3 100,000IU, Inactive substance
- Drug · Other
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 31 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 2
- States / cities
- Atlanta, Georgia
- Conditions
- Dry Eye, Dry Eye Syndromes
- Interventions
- Blink NutriTears, Placebo
- Dietary Supplement
- Lead sponsor
- Applied Science & Performance Institute
- Industry
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 131 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 3
- States / cities
- Lutz, Florida • Tampa, Florida
- Conditions
- Knee Osteoarthritis
- Interventions
- Vitamin D, Control
- Drug
- Lead sponsor
- Rush University Medical Center
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 137 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2022
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Hip Fracture
- Interventions
- Nutrition, PUSH, PULSE
- Dietary Supplement · Behavioral
- Lead sponsor
- University of Maryland, Baltimore
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 210 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2017
- U.S. locations
- 4
- States / cities
- Farmington, Connecticut • Baltimore, Maryland • Lebanon, New Hampshire + 1 more
- Conditions
- Obesity, Insulin Resistance, Inflammation
- Interventions
- Vitamin D, Placebo
- Dietary Supplement · Drug
- Lead sponsor
- Purdue University
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 34 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2010
- U.S. locations
- 1
- States / cities
- West Lafayette, Indiana
- Conditions
- Vitamin D Deficiency, Hepatocellular Carcinoma
- Interventions
- Vitamin D3 4000 IU, Vitamin D3 2000 IU
- Drug
- Lead sponsor
- Andrea Branch
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Polycystic Ovarian Syndrome, Vitamin D Deficiency
- Interventions
- Vitamin D2 (Ergocalciferol), Medroxyprogesterone (Provera), Vitamin D3 (Cholecalciferol), Elemental Calcium
- Dietary Supplement · Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 40 Years · Female only
- Enrollment
- 36 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2013
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Insulin Resistance
- Interventions
- 4,000 IU vitamin D3
- Dietary Supplement
- Lead sponsor
- University of Missouri-Columbia
- Other
- Eligibility
- 9 Years to 19 Years
- Enrollment
- 15 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- Columbia, Missouri
- Conditions
- Vitamin D Deficiency, Pregnancy
- Interventions
- cholecalciferol (vitamin D3), cholecalciferol
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 16 Years to 45 Years · Female only
- Enrollment
- 564 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2009
- U.S. locations
- 1
- States / cities
- Columbia, South Carolina
- Conditions
- Vitamin D Deficiency, Cardiovascular Diseases
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 55 Years to 75 Years · Female only
- Enrollment
- 99 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2014
- U.S. locations
- 3
- States / cities
- Bowler, Wisconsin • Lac du Flambeau, Wisconsin • Madison, Wisconsin
- Conditions
- Male Osteoporosis
- Interventions
- Teriparatide or human parathyroid hormone (PTH) 1-34, Cinacalcet, placebo tablet, Calcium citrate tablet, Vitamin D3
- Drug · Dietary Supplement
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 60 Years to 85 Years · Male only
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2025
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Heart Failure, Vitamin D Deficiency, Cardiomyopathy, Congestive Heart Failure
- Interventions
- Placebo Comparator: Sugar Pill, Vitamin D3 (cholecalciferol)
- Drug
- Lead sponsor
- Heidi Moretti, MS, RD
- Other
- Eligibility
- Not listed
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2015
- U.S. locations
- 2
- States / cities
- Missoula, Montana
- Conditions
- Ankle Arthrodesis, MTP Arthrodesis
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Prisma Health-Midlands
- Other
- Eligibility
- 18 Years to 99 Years
- Enrollment
- 90 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2026
- U.S. locations
- 2
- States / cities
- Charleston, South Carolina • Columbia, South Carolina
- Conditions
- Vitamin d Deficiency
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- University of Delaware
- Other
- Eligibility
- 18 Years to 30 Years · Female only
- Enrollment
- 22 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2025
- U.S. locations
- 1
- States / cities
- Newark, Delaware
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- Female only
- Enrollment
- 169 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2019
- U.S. locations
- 2
- States / cities
- Madison, Wisconsin • Milwaukee, Wisconsin
- Conditions
- Multiple Myeloma
- Interventions
- Lenalidomide, Maintenance Vitamin D, No maintenance Vitamin D
- Drug
- Lead sponsor
- Amany Keruakous, MD, MS.
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2028
- U.S. locations
- 1
- States / cities
- Augusta, Georgia
- Conditions
- Chronic Kidney Disease, End Stage Renal Disease, Vitamin D Deficiency
- Interventions
- cholecalciferol
- Dietary Supplement
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 19 Years and older
- Enrollment
- 37 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2012
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Multiple Sclerosis, Vitamin D Deficiency
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Inflammatory Bowel Disease
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- Penn State University
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 21 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 2
- States / cities
- Hershey, Pennsylvania • University Park, Pennsylvania