- Conditions
- Vitamin D Deficiency
- Interventions
- Cholecalciferol
- Dietary Supplement
- Lead sponsor
- Children's Hospital of Philadelphia
- Other
- Eligibility
- 12 Years to 17 Years
- Enrollment
- 39 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2012
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
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 are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 1–24
of 41
matching trials from the live ClinicalTrials.gov search.
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- 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
- Chronic Kidney Disease
- Interventions
- 1000 IU of Vitamin D3, 4000 IU of Vitamin D3
- Drug
- Lead sponsor
- Emory University
- Other
- Eligibility
- 9 Years to 21 Years
- Enrollment
- 98 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Thalassemia Major
- Interventions
- Vitamin D3, Placebo
- Drug
- Lead sponsor
- Weill Medical College of Cornell University
- Other
- Eligibility
- 6 Years to 60 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- End Stage Renal Disease, Kidney Transplantation, Bone Loss, Fractures, Vascular Calcifications
- Interventions
- Vitamin D3, Calcitriol, Placebo
- Drug
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 61 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Obesity, Vitamin D Deficiency
- Interventions
- Vitamin D3 and Calcium
- Dietary Supplement
- Lead sponsor
- Vadim Sherman, MD
- Other
- Eligibility
- 18 Years to 65 Years · Female only
- Enrollment
- 37 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D2 in orange juice, Vitamin D3 in orange juice, Vitamin D2, Vitamin D3, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Boston University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 86 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2007
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Migraine
- Interventions
- Simvastatin, Vitamin D, Placebo
- Drug · Dietary Supplement · Other
- Lead sponsor
- Rami Burstein
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 89 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2015
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- HIV
- Interventions
- Vitamin D3, Placebo, Vitamin Supplements
- Drug · Other
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 40 Years to 70 Years · Female only
- Enrollment
- 85 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2016
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Crohns Disease, Vitamin D Deficiency
- Interventions
- 5000 IU D3, 1000 IU D3, Placebo
- Dietary Supplement
- Lead sponsor
- Cedars-Sinai Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D, Placebo, Vitamin D + L-cysteine, L-cysteine
- Drug
- Lead sponsor
- Louisiana State University Health Sciences Center Shreveport
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 165 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2022
- U.S. locations
- 1
- States / cities
- Shreveport, Louisiana
- Conditions
- Autistic Disorder
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Oregon Health and Science University
- Other
- Eligibility
- 20 Years to 44 Years · Female only
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2016
- U.S. locations
- 1
- States / cities
- Oregon City, Oregon
- Conditions
- Obesity, Rhinitis, Rhinitis, Allergic, Respiratory Sounds, Dyspnea, Headache, Migraine Disorders, Arthritis, Arthralgia, Anxiety, Sleep Initiation and Maintenance Disorders, Sleep Deprivation
- Interventions
- Vitamin A, Vitamin B6, Vitamin C, Nicotinamide, Vitamin D3, Vitamin E, Broccoli, Spinach, Caffeine, Coffee, Axon Eyewear, Chocolate
- Dietary Supplement · Other · Device
- Lead sponsor
- Verifomics LLC
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016
- U.S. locations
- 1
- States / cities
- Dallas, Texas
- Conditions
- Healthy
- Interventions
- Vitamin D3 1000 IU, Placebo Tablet
- Dietary Supplement
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- 8 Years to 14 Years
- Enrollment
- 157 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Quality of Life, Body Mass Index
- Interventions
- MannaBears, AlgaeCal Calcium, Calcium carbonate, Vitamin D3
- Dietary Supplement
- Lead sponsor
- Integrative Health Technologies, Inc.
- Network
- Eligibility
- 5 Years to 19 Years
- Enrollment
- 200 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- San Antonio, Texas
- 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
- Diabetic Kidney Disease
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 54 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- 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
- Cerebral Palsy
- Interventions
- HMB + Vitamin D3
- Dietary Supplement
- Lead sponsor
- Gillette Children's Specialty Healthcare
- Other
- Eligibility
- 13 Years to 17 Years
- Enrollment
- 7 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- Saint Paul, Minnesota
- Conditions
- Hypertension, Vitamin D Deficiency
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- Loyola University
- Other
- Eligibility
- 25 Years to 45 Years
- Enrollment
- 5 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018
- U.S. locations
- 1
- States / cities
- Maywood, Illinois
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Tufts University
- Other
- Eligibility
- 9 Years to 14 Years
- Enrollment
- 691 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- 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
- Conditions
- Mineral Absorption
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- Baylor College of Medicine
- Other
- Eligibility
- 4 Years to 8 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Parkinson Disease
- Interventions
- Vitamin D3, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Memorial Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 23 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2013
- U.S. locations
- 1
- States / cities
- Johnstown, Pennsylvania