- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D2, Placebo
- Drug
- Lead sponsor
- NYU Langone Health
- Other
- Eligibility
- 12 Years to 18 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2015
- U.S. locations
- 1
- States / cities
- New York, New York
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 25–48
of 375
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Chronic Kidney Disease, Vitamin D Deficiency, Coronary Calcification, Disorders of Calcium and Bone Metabolism
- Interventions
- Calcitriol (Rocaltrol®), Paricalcitol
- Drug
- Lead sponsor
- Joslin Diabetes Center
- Other
- Eligibility
- 25 Years and older
- Enrollment
- 44 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2013
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Asthma, Vitamin D Deficiency
- Interventions
- Vitamin D2 + vitamin D3, Vitamin D3
- Drug
- Lead sponsor
- Nationwide Children's Hospital
- Other
- Eligibility
- 8 Years to 17 Years
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- Columbus, Ohio
- Conditions
- X-linked Hypophosphatemia
- Interventions
- Burosumab Injection [Crysvita]
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Obesity, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- 10 Years to 18 Years
- Enrollment
- 225 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2018
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Type2diabetes
- Interventions
- Thiamine, Placebo
- Dietary Supplement · Other
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 40 Years to 65 Years
- Enrollment
- 52 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Vitamin D Deficiency, Type 2 Diabetes Mellitus, Cardiovascular Disease
- Interventions
- Vitamin D3, Calcium carbonate
- Dietary Supplement
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 50 Years to 70 Years
- Enrollment
- 86 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2018
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- Hyperparathyroidism
- Interventions
- Vitamin D, Four-dimensional computed tomography (4DCT)
- Drug · Device
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2018
- U.S. locations
- 1
- States / cities
- Houston, Texas
- 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
- Vitamin A Deficiency, Vitamin A Toxicity
- Interventions
- Not listed
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 27 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2017
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- 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
- Infertility,Male, Vitamin D Deficiency
- Interventions
- Vitamin D
- Diagnostic Test
- Lead sponsor
- Sanford Health
- Other
- Eligibility
- 21 Years to 56 Years · Male only
- Enrollment
- 230 participants
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- Sioux Falls, South Dakota
- Conditions
- Hypophosphatasia (HPP)
- Interventions
- Asfotase Alfa
- Biological
- Lead sponsor
- Alexion Pharmaceuticals, Inc.
- Industry
- Eligibility
- 5 Years to 12 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2016
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- Insulin Sensitivity
- Interventions
- Not listed
- Lead sponsor
- University of Illinois at Chicago
- Other
- Eligibility
- 21 Years to 49 Years · Female only
- Enrollment
- 76 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Vitamin D Deficiency
- Interventions
- 400 IU Vitamin D3 (cholecalciferol), 2400 IU Vitamin D3 (cholecalciferol), 6400 IU Vitamin D3 (cholecalciferol)
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 460 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2012
- U.S. locations
- 2
- States / cities
- Rochester, New York • Charleston, South Carolina
- Conditions
- Bariatric Surgery Candidate, Vitamin Deficiency, Mineral Deficiency
- Interventions
- Patch MD MultiVitamin Plus patch
- Dietary Supplement
- Lead sponsor
- University of Florida
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 99 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2021
- U.S. locations
- 1
- States / cities
- Gainesville, Florida
- Conditions
- Sickle Cell Disease, Vitamin D Deficiency, Acute Chest Syndrome, Asthma, Respiratory Infections
- Interventions
- Experimental: Vitamin D3 100,000 IU, Active Comparator: Vitamin D3 12,000 IU
- Drug
- Lead sponsor
- Gary M Brittenham, MD
- Other
- Eligibility
- 3 Years to 20 Years
- Enrollment
- 70 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Vitamin A Deficiency
- Interventions
- Biofortified cassava gari, White cassava gari, White cassava gari + red palm oil
- Other
- Lead sponsor
- USDA, Western Human Nutrition Research Center
- Federal
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014
- U.S. locations
- 1
- States / cities
- Davis, California
- 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
- Triple Negative Breast Cancer, Vitamin D Deficiency, Invasive Breast Cancer
- Interventions
- Standard of Care Neoadjuvant Chemotherapy (NAC), Vitamin D3, Drug Diary
- Drug · Dietary Supplement · Other
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2026
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- Conditions
- Human Immunodeficiency Virus (HIV), Vitamin D Deficiency, HIV Infections
- Interventions
- Vitamin D, Placebo
- Drug · Other
- Lead sponsor
- University Hospitals Cleveland Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 45 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio
- Conditions
- Kidney Transplantation, Vitamin D Deficiency
- Interventions
- Standard vitamin D3 treatment, High dose vitamin D3 treatment
- Dietary Supplement
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 19 Years and older
- Enrollment
- 116 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2023
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Hypocalcemia, Pseudohypoparathyroidism, Osteomalacia, Rickets, Pseudopseudohpoparathyroidism
- Interventions
- Not listed
- Lead sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- NIH
- Eligibility
- 2 Months to 100 Years
- Enrollment
- 70 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1997 – 2022
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Chronic Kidney Disease
- Interventions
- Not listed
- Lead sponsor
- Saint Louis VA Medical Center
- Federal
- Eligibility
- 18 Years to 80 Years
- Healthy volunteers
- Healthy volunteers not accepted
- U.S. locations
- 1
- States / cities
- St Louis, Missouri