- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D-enriched mushrooms, Study Powder
- Other
- Lead sponsor
- Purdue University
- Other
- Eligibility
- 30 Years to 69 Years
- Enrollment
- 36 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- West Lafayette, 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 are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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 91
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Inflammatory Bowel Diseases, Vitamin D Deficiency
- Interventions
- Vitamin D (ergocalciferol and/ or cholecalciferol)
- Dietary Supplement
- Lead sponsor
- Cedars-Sinai Medical Center
- Other
- Eligibility
- 18 Years to 85 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Dysphagia, Fecal Incontinence, Urinary Incontinence
- Interventions
- Ergocalciferol (vitamin D2)
- Other
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 70 Years and older
- Enrollment
- 50 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- Started 2006
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- 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
- Atopic Dermatitis, Vitamin D Deficiency
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- Medical College of Wisconsin
- Other
- Eligibility
- 1 Year to 18 Years
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Milwaukee, Wisconsin
- Conditions
- Pruritis
- Interventions
- 50,000 Units Ergocalciferol, Placebo
- Drug
- Lead sponsor
- Winthrop University Hospital
- Other
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2012
- U.S. locations
- 2
- States / cities
- Bethpage, New York • Mineola, New York
- Conditions
- Vitamin D Deficiency, Osteoporosis
- Interventions
- Vitamin D, placebo
- Drug
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 55 Years and older
- Enrollment
- 96 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2001 – 2004
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Polycystic Ovarian Syndrome, Vitamin D Deficiency
- Interventions
- Vitamin D2 (Ergocalciferol), Medroxyprogesterone (Provera), Vitamin D3 (Cholecalciferol), Elemental Calcium
- Dietary Supplement · Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 40 Years · Female only
- Enrollment
- 36 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2013
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- End Stage Renal Disease
- Interventions
- ergocalciferol supplementation, placebo
- Dietary Supplement · Other
- Lead sponsor
- Dialysis Clinic, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 470 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 12
- States / cities
- Redding, California • Albany, Georgia • Shreveport, Louisiana + 9 more
- Conditions
- Muscle Function, Muscle Soreness, Vitamin D Status
- Interventions
- Vitamin D2 mushroom powder, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Appalachian State University
- Other
- Eligibility
- 20 Years to 40 Years · Male only
- Enrollment
- 33 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2013
- U.S. locations
- 3
- States / cities
- Kannapolis, North Carolina
- Conditions
- Osteoporosis
- Interventions
- Alendronate
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 5 Years to 15 Years
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2009
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- Vitamin D Deficiency, Osteoporosis, Osteopenia
- Interventions
- Calcium 500mg with 200 IU Vitamin D - 2 tablets daily, Blood levels of Vitamin D, Serum CTX, Mg, Ca++ and iPTH, Usual sun exposure documentation, Dietary intake of calcium, vitamin D, magnesium
- Drug · Procedure · Behavioral
- Lead sponsor
- McLennan County Medical Education and Research Foundation
- Other
- Eligibility
- 70 Years and older · Female only
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2007
- U.S. locations
- 1
- States / cities
- Waco, Texas
- Conditions
- Healthy Subjects, Vitamin D Deficiency
- Interventions
- ergocalciferol
- Drug
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 99 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2012
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Osteopenia, Osteoporosis
- Interventions
- Pamidronate, Calcium and vitamin D
- Drug
- Lead sponsor
- Masonic Cancer Center, University of Minnesota
- Other
- Eligibility
- 1 Year to 20 Years
- Enrollment
- 63 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2022
- U.S. locations
- 2
- States / cities
- Minneapolis, Minnesota • Seattle, Washington
- Conditions
- Sarcoidosis, Vitamin D Insufficiency
- Interventions
- Ergocalciferol, Placebo, Calcium Citrate with Vitamin D2
- Drug
- Lead sponsor
- University of Texas Southwestern Medical Center
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 90 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2026
- U.S. locations
- 1
- States / cities
- Dallas, Texas
- Conditions
- Chronic Renal Insufficiency, Proteinuria
- Interventions
- Vitamin D, Placebo
- Drug · Other
- Lead sponsor
- Albert Einstein College of Medicine
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 74 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2014
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- 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
- Secondary Hyperparathyroidism, Chronic Kidney Disease
- Interventions
- Paricalcitol, Ergocalciferol
- Drug
- Lead sponsor
- Salem Veterans Affairs Medical Center
- Federal
- Eligibility
- 18 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Salem, Virginia
- Conditions
- Peyronie's Disease
- Interventions
- Vitamin D2, Vitamin E, Testosterone Pellets
- Drug
- Lead sponsor
- Men's Health Boston
- Other
- Eligibility
- 18 Years to 70 Years · Male only
- Enrollment
- 75 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2017
- U.S. locations
- 1
- States / cities
- Chestnut Hill, Massachusetts
- 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
- Interventions
- Vitamin D2, Placebo
- Drug
- Lead sponsor
- NYU Langone Health
- Other
- Eligibility
- 12 Years to 18 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2015
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Inflammation, Insulin Resistance
- Interventions
- Ergocalciferol, Placebo
- Drug
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 58 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- Conditions
- Congestive Heart Failure, Ischemic Cardiomyopathy
- Interventions
- Micronutrients
- Drug
- Lead sponsor
- Phoenix VA Health Care System
- Federal
- Eligibility
- 18 Years to 89 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2016
- U.S. locations
- 1
- States / cities
- Phoenix, Arizona
- Conditions
- Graves Disease, Graves' Disease, Hyperthyroidism
- Interventions
- Ergocalciferol 50,000 IU, Methimazole
- Drug
- Lead sponsor
- Northwell Health
- Other
- Eligibility
- 9 Years to 17 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- New Hyde Park, New York