- Conditions
- Osteoporosis, Prostate Cancer
- Interventions
- Calcium, Zoledronic acid, radiation therapy, LHRH, Vitamin D
- Dietary Supplement · Radiation · Drug
- Lead sponsor
- Radiation Therapy Oncology Group
- Network
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 109 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2014
- U.S. locations
- 80
- States / cities
- Chico, California • Los Angeles, California • Pomona, California + 66 more
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 529–552
of 960
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Atopic Dermatitis, Psoriasis
- Interventions
- Vitamin D3, Placebo
- Drug
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 82 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2009
- U.S. locations
- 3
- States / cities
- San Diego, California • Denver, Colorado • Portland, Oregon
- Conditions
- Systemic Lupus Erythematosus
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2014
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- Sickle Cell Disease, Vitamin D Deficiency, Acute Chest Syndrome, Asthma, Respiratory Infections
- Interventions
- Experimental: Vitamin D3 100,000 IU, Active Comparator: Vitamin D3 12,000 IU
- Drug
- Lead sponsor
- Gary M Brittenham, MD
- Other
- Eligibility
- 3 Years to 20 Years
- Enrollment
- 70 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Breast Cancer
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- Inova Health Care Services
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 8 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- U.S. locations
- 1
- States / cities
- Fairfax, Virginia
- Conditions
- Craniocerebral Trauma, Intracranial Aneurysm, Brain Neoplasms, Spinal Cord Injuries, Seizures, Meningitis, Stroke, Intracranial Hemorrhages, Critical Illness, Vitamin d Deficiency
- Interventions
- Cholecalciferol, Placebo
- Drug · Other
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 274 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2018
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- Conditions
- Osteoporosis
- Interventions
- placebo, ALX1-11
- Drug
- Lead sponsor
- Shire
- Industry
- Eligibility
- 45 Years and older · Female only
- Enrollment
- 2,532 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2000 – 2003
- U.S. locations
- 107
- States / cities
- Birmingham, Alabama • Huntsville, Alabama • Phoenix, Arizona + 95 more
- Conditions
- Obese, Vitamin D Deficiency, Low HDL
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- Xiang-An Li
- Other
- Eligibility
- 5 Years to 18 Years
- Enrollment
- 1 participant
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2017
- U.S. locations
- 1
- States / cities
- Lexington, Kentucky
- Conditions
- Alopecia Areata
- Interventions
- Not listed
- Lead sponsor
- Avera McKennan Hospital & University Health Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Sioux Falls, South Dakota
- Conditions
- Chronic Kidney Disease
- Interventions
- D6-25-hydroxyvitamin D3
- Drug
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 88 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2021
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Bariatric Surgery
- Interventions
- Not listed
- Lead sponsor
- Texas Tech University
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 31 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Lubbock, Texas
- Conditions
- Female Hormone Profile
- Interventions
- Vitamin D (Cholecalciferol ), Placebo Group
- Dietary Supplement
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 18 Years to 35 Years · Female only
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Osteoporosis, Bone Loss, Osteopenia
- Interventions
- Intervention I, Intervention II
- Other · Dietary Supplement
- Lead sponsor
- USDA, Western Human Nutrition Research Center
- Federal
- Eligibility
- 50 Years to 65 Years · Female only
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Davis, California
- Conditions
- Bariatric Surgery Candidate
- Interventions
- AquaVanta Chewable Tablet, Flinstones Complete, Nature Made Calcium Softgels, Twin Labs Iron Caps, Rexall Vitamin B12 Tablet
- Dietary Supplement
- Lead sponsor
- Yasoo Health
- Industry
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 61 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Weight Loss, Starvation
- Interventions
- Caloric Restriction, Post-Exercise Protein, Energy Balance, Post-Exercise Carbohydrate, Calcium and Vitamin D
- Other · Dietary Supplement
- Lead sponsor
- University of Nebraska Lincoln
- Other
- Eligibility
- 19 Years to 30 Years
- Enrollment
- 17 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Lincoln, Nebraska
- Conditions
- Psoriasis
- Interventions
- U0267 Foam, Vehicle foam
- Drug
- Lead sponsor
- Stiefel, a GSK Company
- Industry
- Eligibility
- 12 Years and older
- Enrollment
- 323 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008
- U.S. locations
- 12
- States / cities
- Mobile, Alabama • Fremont, California • Ormond Beach, Florida + 9 more
- Conditions
- Delusion of Reference
- Interventions
- Endocrine Society UL Dosage Vitamin D, Institute of Medicine Dosage Vitamin D, Calcium
- Dietary Supplement
- Lead sponsor
- Winthrop University Hospital
- Other
- Eligibility
- 50 Years to 90 Years · Female only
- Enrollment
- 132 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2016
- U.S. locations
- 1
- States / cities
- Mineola, New York
- Conditions
- Relapsing Remitting Multiple Sclerosis
- Interventions
- 19 nor vitamin d
- Drug
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 18 Years to 45 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1998 – 2000
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Postmenopausal, Vitamin D Deficiency
- Interventions
- Dual isotope technique
- Other
- Lead sponsor
- Winthrop University Hospital
- Other
- Eligibility
- 50 Years to 70 Years · Female only
- Enrollment
- 76 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Mineola, New York
- Conditions
- Vitamin D Deficiency
- Interventions
- Not listed
- Lead sponsor
- Creighton University
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008
- U.S. locations
- 1
- States / cities
- Anchorage, Alaska
- Conditions
- Secondary Hyperparathyroidism Due to Renal Causes, Chronic Kidney Diseases, Vitamin D Deficiency, Stage 5 Chronic Kidney Disease
- Interventions
- Calcifediol Oral Capsule, Placebo oral capsule
- Drug
- Lead sponsor
- OPKO Health, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 44 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2021
- U.S. locations
- 18
- States / cities
- Peoria, Arizona • Phoenix, Arizona • Cypress, California + 13 more
- Conditions
- Vitamin D Deficiency
- Interventions
- Mushroom Vitamin D2, Cholecalciferol, Vitamin D2 - Ergocalciferol, Mushroom Extract
- Dietary Supplement
- Lead sponsor
- Boston University
- Other
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D Deficiency, Fat Malabsorption
- Interventions
- Calcifediol, Calciferol
- Drug
- Lead sponsor
- Boston University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Diabetic Kidney Disease
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 54 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina