- Conditions
- Cardiovascular Risk Factor
- Interventions
- Multicomponent Virtual Lifestyle Intervention
- Behavioral
- Lead sponsor
- Truemedicine Inc
- Other
- Eligibility
- 30 Years to 60 Years
- Enrollment
- 200 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026
- U.S. locations
- 1
- States / cities
- San Francisco, California
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 769–792
of 960
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Sickle Cell Disease
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Gary M Brittenham, MD
- Other
- Eligibility
- 3 Years to 20 Years
- Enrollment
- 4 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Prostate Cancer
- Interventions
- calcitriol, docetaxel
- Drug
- Lead sponsor
- Novacea
- Industry
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 1,200 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2007
- U.S. locations
- 159
- States / cities
- Birmingham, Alabama • Muscle Shoals, Alabama • Anchorage, Alaska + 132 more
- Conditions
- Diabetes Mellitus - Type 1, Diabetes Mellitus - Type 2, Non-proliferative Diabetic Retinopathy
- Interventions
- multi-component nutritional supplement capsules, multi-component dietary supplement
- Dietary Supplement
- Lead sponsor
- ZeaVision, LLC
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 70 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Tacoma, Washington
- Conditions
- Vitamin Deficiency
- Interventions
- EZPAK, Placebo
- Dietary Supplement
- Lead sponsor
- Optimal Health Research
- Other
- Eligibility
- 26 Years to 75 Years
- Enrollment
- 275 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- Conditions
- Osteopenia, Osteoporosis
- Interventions
- Micronized Calcium Carbonate, Non-Micronized Calcium Carbonate, Vitamin D3
- Dietary Supplement
- Lead sponsor
- Integrative Health Technologies, Inc.
- Network
- Eligibility
- 21 Years and older
- Enrollment
- 160 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- San Antonio, Texas
- Conditions
- Prostate Cancer
- Interventions
- calcitriol, dexamethasone, protein expression analysis, laboratory biomarker analysis
- Dietary Supplement · Drug · Genetic + 1 more
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- Up to 120 Years · Male only
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2010
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Diabetes Mellitus, Type 1, Hypoglycemia, Diabetes Mellitus, Diabetes, Autoimmune
- Interventions
- Cholecalciferol, Omega 3 fatty acid
- Drug
- Lead sponsor
- Rodolfo Alejandro
- Other
- Eligibility
- 6 Years to 65 Years
- Enrollment
- 27 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2024
- U.S. locations
- 1
- States / cities
- Miami, Florida
- Conditions
- Healthy
- Interventions
- vitamin D2, vitamin D3
- Dietary Supplement
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 21 Years to 65 Years
- Enrollment
- 32 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Premature Infants
- Interventions
- cholecalciferal, cholecalciferol
- Dietary Supplement
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 23 Weeks to 32 Weeks
- Enrollment
- 32 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Chronic Hepatitis C
- Interventions
- Not listed
- Lead sponsor
- Avera McKennan Hospital & University Health Center
- Other
- Eligibility
- 20 Years to 60 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2019
- U.S. locations
- 1
- States / cities
- Sioux Falls, South Dakota
- 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
- 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
- Vitamin D Deficiency
- Interventions
- Vitamin D 10000 UNT, Vitamin D 5000 UNT
- Drug
- Lead sponsor
- Virginia Polytechnic Institute and State University
- Other
- Eligibility
- 18 Years to 30 Years
- Enrollment
- 68 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Blacksburg, Virginia
- Conditions
- Colorectal Cancer
- Interventions
- vitamin D repletion with Cholecalciferol (vitamin D3 50,000 International Units)
- Drug
- Lead sponsor
- Memorial Sloan Kettering Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 45 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2014
- U.S. locations
- 5
- States / cities
- Basking Ridge, New Jersey • Commack, New York • New York, New York + 2 more
- Conditions
- Vitamin D Deficiency
- Interventions
- Oral Vitamin D Supplementation
- Drug
- Lead sponsor
- Winthrop University Hospital
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 150 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2004 – 2006
- U.S. locations
- 1
- States / cities
- Mineola, New York
- Conditions
- Pre-diabetes
- Interventions
- vitamin D, placebo
- Drug
- Lead sponsor
- Charles Drew University of Medicine and Science
- Other
- Eligibility
- 18 Years to 90 Years
- Enrollment
- 117 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Infections, Human Cathelicidin Antimicrobial Peptide (hCAP-18)
- Interventions
- vitamin D3, omega-3 fatty acids (fish oil), Vitamin D3 placebo, fish oil placebo
- Dietary Supplement · Drug
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 25,874 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2026
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Respiratory Tract Infections, Covid19, Flu Like Illness
- Interventions
- Vitamin D supplementation
- Dietary Supplement
- Lead sponsor
- The Cooper Health System
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 877 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2023
- U.S. locations
- 1
- States / cities
- Camden, New Jersey
- Conditions
- SARS-CoV Infection
- Interventions
- Vitamin D3 or Placebo, Doctella telehealth monitoring
- Drug · Device
- Lead sponsor
- University Hospitals Cleveland Medical Center
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Vitamin D Deficiency, Hypovitaminosis A, Vitamin E Deficiency
- Interventions
- Vitamin D, Vitamin D, Vitamin E, and Vitamin A, Control, 700 mg Calcium
- Dietary Supplement
- Lead sponsor
- Boston University
- Other
- Eligibility
- 6 Years to 10 Years
- Enrollment
- 180 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2005 – 2008
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Prostate Cancer
- Interventions
- cholecalciferol
- Dietary Supplement
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years to 90 Years · Male only
- Enrollment
- 52 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2011
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- 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
- HIV Infections, AIDS
- Interventions
- Cholecalciferol (Vit D3)
- Drug
- Lead sponsor
- Children's Hospital of Philadelphia
- Other
- Eligibility
- 5 Years to 24 Years
- Enrollment
- 44 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania