- Conditions
- Nutrition, Healthy
- Interventions
- DHA/EPA fortified chicken plus Placebo, non-25(OH)D fortified chicken/eggs plus vitamin D3 supplement, non-DHA bio-enhanced chicken plus supplement DHA Omega-3, 25(OH)D bioenhanced chicken and eggs plus placebo, Dietary Supplement: DHA/EPA fortified eggs plus Placebo, non-DHA bio-enhanced eggs plus supplement DHA Omega-3, non-25(OH)D fortified chicken/eggs plus placebo
- Dietary Supplement · Other
- Lead sponsor
- Cornell University
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 84 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2026
- U.S. locations
- 1
- States / cities
- Ithaca, 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 313–336
of 550
matching trials from the live ClinicalTrials.gov search.
- Conditions
- PCOS, Depression, Vitamin D Deficiency, Insulin Resistance
- Interventions
- Metformin, Vitamin D
- Drug
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 5 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2019
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Tuberculosis
- Interventions
- Vitamin D3, Placebo
- Drug
- Lead sponsor
- Atlanta VA Medical Center
- Federal
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2010
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- 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
- Castration-resistant Prostate Cancer
- Interventions
- Calcitriol, Ketoconazole, Hydrocortisone
- Drug
- Lead sponsor
- Donald Trump, MD
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1 participant
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Fairfax, Virginia
- Conditions
- Vitamin D Supplementation
- Interventions
- Supplemental Vitamin D
- Drug
- Lead sponsor
- Boston Children's Hospital
- Other
- Eligibility
- 11 Years to 18 Years
- Enrollment
- 56 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Bone Density, Body Composition, Bone Health
- Interventions
- Vitamin D3 placebo, Fish oil placebo, omega-3 fatty acids (fish oil), Vitamin D3
- Dietary Supplement
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 771 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2023
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D Deficiency, HIV
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 18 Years to 90 Years
- Enrollment
- 122 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2012
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- 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
- Cystic Fibrosis
- Interventions
- Vitamin D Powder, Vitamin D Oil
- Dietary Supplement
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years to 59 Years
- Enrollment
- 17 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2015
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- 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
- Cystic Fibrosis
- Interventions
- ergocalciferol (vitamin D2), Sperti Del Sol Lamp, Vitamin D3
- Drug · Device
- Lead sponsor
- Atlanta VA Medical Center
- Federal
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2011
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Opioid Use Disorder
- Interventions
- [11C]-PHNO, Calcitriol, Placebo Control, PET Scan
- Drug · Dietary Supplement · Other + 1 more
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 5 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Damage Muscle, Body Weight Changes, Performance Enhancing Product Use
- Interventions
- Pre-workout plus and Protein recovery plus, Placebo, 6-week resistance training program
- Dietary Supplement · Other
- Lead sponsor
- Pharmanex
- Industry
- Eligibility
- 25 Years to 50 Years
- Enrollment
- 69 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Chapel Hill, North Carolina
- Conditions
- Determine Effect of Vitamin D on Bone Health in Elderly African American Women
- Interventions
- Vitamin D 3, placebo
- Dietary Supplement · Other
- Lead sponsor
- Winthrop University Hospital
- Other
- Eligibility
- 60 Years and older · Female only
- Enrollment
- 260 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2016
- U.S. locations
- 1
- States / cities
- Mineola, New York
- Conditions
- Ectonucleotide Pyrophosphatase/Phosphodiesterase1 Deficiency, Autosomal Recessive Hypophosphatemic Rickets, Generalized Arterial Calcification of Infancy
- Interventions
- INZ-701, Control Arm (Conventional Therapy)
- Drug
- Lead sponsor
- Inozyme Pharma
- Industry
- Eligibility
- 1 Year to 12 Years
- Enrollment
- 27 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2026
- U.S. locations
- 3
- States / cities
- Chicago, Illinois • Philadelphia, Pennsylvania • Fort Worth, Texas
- Conditions
- Post-acute COVID-19 Syndrome
- Interventions
- Vitamin K2 (MK-7), Vitamin D3
- Dietary Supplement
- Lead sponsor
- University Hospitals Cleveland Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 151 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio
- Conditions
- Cardiovascular Disease, Vitamin D Deficiency
- Interventions
- Vitamin D3, Placebo
- Dietary Supplement
- Lead sponsor
- Intermountain Health Care, Inc.
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 150 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2020
- U.S. locations
- 1
- States / cities
- Murray, Utah
- Conditions
- Vitamin D Deficiency, Cognitive Decline
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- University of California, Davis
- Other
- Eligibility
- 65 Years to 90 Years
- Enrollment
- 180 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2026
- U.S. locations
- 1
- States / cities
- Walnut Creek, California
- Conditions
- Cardiovascular Disease
- Interventions
- Vitamin D3, Omega-3 fatty acids (fish oil), Fish oil placebo, Vitamin D3 placebo
- Dietary Supplement · Drug
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 25,119 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2026
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- 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
- Spinal Cord Injury, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- James J. Peters Veterans Affairs Medical Center
- Federal
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 88 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2016
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- Thyroid Nodules, Hypocalcemia
- Interventions
- Calcitriol, Control Pill
- Dietary Supplement
- Lead sponsor
- David Shonka, MD
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 67 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2021
- U.S. locations
- 1
- States / cities
- Charlottesville, Virginia
- Conditions
- Soreness, Muscle, Performance Enhancing Product Use, Damage Muscle
- Interventions
- Pre-workout plus and protein recovery plus, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Pharmanex
- Industry
- Eligibility
- 25 Years to 50 Years
- Enrollment
- 32 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020
- U.S. locations
- 1
- States / cities
- Chapel Hill, North Carolina