- Conditions
- Arthritis, Rheumatoid, Vitamin D Deficiency
- Interventions
- Placebo in arm A and Vitamin D in arm B, vitamin D 3 for arm A ,and matching placebo for arm B
- Drug
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Indianapolis, Indiana
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 1–24
of 376
matching trials from the live ClinicalTrials.gov search.
- 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
- Vitamin D Deficiency
- Interventions
- Ergocalciferol, Ergocalciferol placebo
- Dietary Supplement
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 92 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2008
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D Deficiency, Nutritional Deficiency
- Interventions
- High dose Cholecalciferol, Cholecalciferol
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 0 Days to 45 Years
- Enrollment
- 8 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- Cancer Cachexia, Vitamin D Deficiency
- Interventions
- Vitamin D, Placebo
- Dietary Supplement
- Lead sponsor
- David Travis Thomas
- Other
- Eligibility
- 45 Years to 75 Years
- Enrollment
- 1 participant
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018
- U.S. locations
- 1
- States / cities
- Lexington, Kentucky
- Conditions
- Vitamin D Deficiency, Vitamin D Insufficiency
- Interventions
- UVB treatment
- Device
- Lead sponsor
- Boston University
- Other
- Eligibility
- 22 Years and older
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D Deficiency, Gastrointestinal Diseases
- Interventions
- Sperti Lamp
- Device
- Lead sponsor
- Boston University
- Other
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 19 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D Deficiency, Accidental Falls
- Interventions
- Vitamin D3, Vitamin E
- Dietary Supplement
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 68 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- 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
- Metabolic Syndrome
- Interventions
- vitamin D3 (cholecalciferol)
- Dietary Supplement
- Lead sponsor
- Allina Health System
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 84 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- Conditions
- Burns, Ascorbic Acid Deficiency, Burn Shock, Burn Degree Second, Burn Degree Third, Fluid and Electrolyte Imbalance
- Interventions
- Vitamin C
- Dietary Supplement
- Lead sponsor
- Arrowhead Regional Medical Center
- Other
- Eligibility
- Not listed
- Enrollment
- 54 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Colton, California
- Conditions
- Pre-Eclampsia, Depression, Inflammation, Vitamin D Deficiency
- Interventions
- mental health screening, education and referral program
- Other
- Lead sponsor
- Cedars-Sinai Medical Center
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 200 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2027
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Covid 19, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Arizona State University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 41 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020
- U.S. locations
- 1
- States / cities
- Tempe, Arizona
- Conditions
- Precursor Cell Lymphoblastic Leukemia-Lymphoma, Vitamin D Deficiency
- Interventions
- Vitamin D and Calcium Citrate
- Dietary Supplement
- Lead sponsor
- Children's Hospital Los Angeles
- Other
- Eligibility
- 10 Years to 29 Years
- Enrollment
- 76 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2016
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Vitamin D Deficiency, Coronary Artery Disease, Endothelial Dysfunction, Inflammation
- Interventions
- Ergocalciferol, Sugar pill
- Drug · Other
- Lead sponsor
- Seth I. Sokol, M.D.
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 96 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 2
- States / cities
- The Bronx, New York
- 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
- Hypercholesterolemia, Vitamin D Deficiency
- Interventions
- Vitamin D (1000 or 2000 IU/day), Placebo
- Dietary Supplement · Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 130 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2012
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Systemic Lupus Erythematosus, SLE, Lupus
- Interventions
- Vitamin D3, Vitamin D3 placebo
- Drug
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 18 Years and older
- Enrollment
- 57 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 8
- States / cities
- Birmingham, Alabama • San Francisco, California • Boston, Massachusetts + 5 more
- Conditions
- Obesity, Vitamin D Deficiency
- Interventions
- cholecalciferol
- Dietary Supplement
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 19 Years to 60 Years · Male only
- Enrollment
- 67 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Vitamin D Deficiency, Cystic Fibrosis
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- 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 D Deficiency, Covid19
- Interventions
- Vitamin D
- Other
- Lead sponsor
- Parkview Medical Center
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 50 participants
- Timeline
- 2020 – 2022
- U.S. locations
- 1
- States / cities
- Pueblo, Colorado
- Conditions
- Vitamin D Insufficiency, Vitamin D Deficiency
- Interventions
- Cholecalciferol (vitamin D3)
- Dietary Supplement
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 55 Years and older · Female only
- Enrollment
- 108 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2011
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Hypophosphatasia
- Interventions
- asfotase alfa
- Biological
- Lead sponsor
- Alexion Pharmaceuticals, Inc.
- Industry
- Eligibility
- 24 Weeks to 42 Months
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2016
- U.S. locations
- 5
- States / cities
- Wilmington, Delaware • Springfield, Missouri • Omaha, Nebraska + 2 more