- Conditions
- Health, Subjective
- Interventions
- Experimental supplement, Placebo
- Dietary Supplement
- Lead sponsor
- Auburn University
- Other
- Eligibility
- 21 Years to 40 Years · Female only
- Enrollment
- 94 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Auburn, Alabama
Search Results
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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 25–48
of 24
matching trials from the live ClinicalTrials.gov search.
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- 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
- Seasonal Mood Disorder
- Interventions
- Vitamin D, No Vitamin D
- Dietary Supplement
- Lead sponsor
- Corewell Health South
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 27 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Saint Joseph, Michigan
- 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
- Obesity
- Interventions
- Oral vitamin D3, Placebo equivalent
- Dietary Supplement
- Lead sponsor
- Winthrop University Hospital
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 57 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Mineola, New York
- Conditions
- Vitamin D Deficiency
- Interventions
- Softgel Vitamin D3, Nano Liquid Vitamin D3, 25(OH)D Blood Serum Test, Placebo Control
- Dietary Supplement · Diagnostic Test · Other
- Lead sponsor
- Inspired Life Medical, Inc.
- Industry
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 114 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021
- U.S. locations
- 1
- States / cities
- Le Sueur, Minnesota
- Conditions
- Osteoporosis, Aging
- Interventions
- Vitamin D3, Calcium Citrate (Citracal)
- Dietary Supplement
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 57 Years and older · Female only
- Enrollment
- 273 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2011
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Respiratory Infection
- Interventions
- High Dose Vitamin D, Standard Dose Vitamin D, Placebo, Usual Care
- Drug · Dietary Supplement
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 107 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2016
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Colorectal Cancer, Precancerous Condition
- Interventions
- cholecalciferol, placebo
- Dietary Supplement · Other
- Lead sponsor
- Northwestern University
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2012
- U.S. locations
- 2
- States / cities
- Chicago, Illinois
- Conditions
- Obesity, Pediatric, Obesity, Childhood, Obesity, Morbid, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 5 Years to 11 Years
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 12 Years to 18 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota
- Conditions
- Postmenopausal Osteoporosis
- Interventions
- Dried Plum, Calcium supplement, Vitamin D supplement
- Dietary Supplement
- Lead sponsor
- Penn State University
- Other
- Eligibility
- 55 Years to 75 Years · Female only
- Enrollment
- 322 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2027
- U.S. locations
- 1
- States / cities
- University Park, Pennsylvania
- Conditions
- Insulin Resistance, Obesity, Vitamin D25 Insufficiency
- Interventions
- Vitamin D drops, Placebo drops
- Drug
- Lead sponsor
- Weill Medical College of Cornell University
- Other
- Eligibility
- 7 Years to 18 Years
- Enrollment
- 110 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2012
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Asthma
- Interventions
- Vitamin D 3 cholecalciferol, Vitamin D3
- Dietary Supplement
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 18 Years to 39 Years · Female only
- Enrollment
- 876 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2023
- U.S. locations
- 3
- States / cities
- San Diego, California • Boston, Massachusetts • St Louis, Missouri
- Conditions
- Frailty
- Interventions
- Supervised aerobic + resistance training and nutritional support
- Behavioral
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 50 Years and older
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2024
- U.S. locations
- 1
- States / cities
- Durham, North Carolina
- Conditions
- Vitamin D Deficiency
- Interventions
- Cholecalciferol
- Dietary Supplement
- Lead sponsor
- Augusta University
- Other
- Eligibility
- 13 Years to 45 Years
- Enrollment
- 74 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- Augusta, Georgia
- Conditions
- Accidental Fall
- Interventions
- Gait and balance assessment, Medication review, Comorbidity review, Fall history, Assessment of feet/footwear, Assessment of visual acuity, Home safety risk assessment, Vitamin D Deficiency
- Behavioral
- Lead sponsor
- National Opinion Research Center
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 780 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2023
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- 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
- Conditions
- Multiple Sclerosis, Relapsing-remitting
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years to 60 Years · Female only
- Enrollment
- 57 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2014
- U.S. locations
- 2
- States / cities
- San Francisco, California • Baltimore, Maryland
- Conditions
- Sarcopenia
- Interventions
- Exercise Intervention, Supplement Intervention
- Other · Dietary Supplement
- Lead sponsor
- Tufts University
- Other
- Eligibility
- 70 Years and older
- Enrollment
- 150 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Center-involved Diabetic Macular Edema (CI-DME)
- Interventions
- Diabetes Visual Function Study (DiVFuSS) softgels, canola oil placebo softgels, 2 per day
- Dietary Supplement · Other
- Lead sponsor
- ZeaVision, LLC
- Industry
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 150 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 2
- States / cities
- Olympia, Washington • Tacoma, Washington
- Conditions
- Cancer
- Interventions
- Vitamin D3, Calcium carbonate
- Dietary Supplement
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 55 Years and older · Female only
- Enrollment
- 2,303 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2015
- U.S. locations
- 1
- States / cities
- Fremont, Nebraska
- Conditions
- Endometriosis
- Interventions
- Vitamin D3, Fish Oil, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Boston Children's Hospital
- Other
- Eligibility
- 12 Years to 25 Years · Female only
- Enrollment
- 69 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- HMG-CoA Reductase Inhibitors-related Myalgias
- Interventions
- cholecalciferol/placebo
- Drug
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 19 Years to 89 Years
- Enrollment
- 4 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska