- Conditions
- Cirrhosis, Hepatocellular Carcinoma
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years to 75 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2016
- U.S. locations
- 1
- States / cities
- Washington D.C., District of Columbia
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 1,035
matching trials from the live ClinicalTrials.gov search.
- 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
- Cystic Fibrosis
- Interventions
- Not listed
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2018
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- 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
- Mild Cognitive Impairment
- Interventions
- BBH-1001 Brain Health Supplement, Lifestyle Intervention, Brain Health Placebo
- Dietary Supplement · Other
- Lead sponsor
- Cedars-Sinai Medical Center
- Other
- Eligibility
- 55 Years and older
- Enrollment
- 150 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Vitamin D Deficiency, End Stage Renal Disease
- Interventions
- Not listed
- Lead sponsor
- Winthrop University Hospital
- Other
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2012
- U.S. locations
- 2
- States / cities
- Mineola, New York
- Conditions
- Age-related Macular Degeneration
- Interventions
- Omega-3 fatty acids (fish oil), Vitamin D3, Vitamin D3 placebo, Fish oil placebo
- Drug · Dietary Supplement
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 25,871 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2024
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- 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
- Maternal Stress
- Interventions
- Vitamin D (Cholecalciferol ), Placebo
- Dietary Supplement · Other
- Lead sponsor
- University of Idaho
- Other
- Eligibility
- 18 Years to 64 Years · Female only
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2027
- U.S. locations
- 2
- States / cities
- Coeur d'Alene, Idaho • Moscow, Idaho
- Conditions
- Type 1 Diabetes Mellitus
- Interventions
- Recombinant human glutamic acid decarboxylase (rhGAD65) formulated in Alhydrogel®, Colecalciferol 2000 IU, Placebo
- Biological · Dietary Supplement
- Lead sponsor
- Diamyd Medical AB
- Industry
- Eligibility
- 12 Years to 28 Years
- Enrollment
- 321 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2026
- U.S. locations
- 13
- States / cities
- Newport Beach, California • Palo Alto, California • San Diego, California + 10 more
- 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
- Osteoporosis, Osteopenia
- Interventions
- Fiber Pill, Melatonin, Strontium citrate, Vitamins D3 and K2
- Dietary Supplement
- Lead sponsor
- Duquesne University
- Other
- Eligibility
- Female only
- Enrollment
- 23 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2017
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Hyperparathyroidism, Secondary, Kidney Failure, Chronic
- Interventions
- DP001 softgel capsules, Placebo
- Drug
- Lead sponsor
- Deltanoid Pharmaceuticals
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 62 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2014
- U.S. locations
- 14
- States / cities
- Phoenix, Arizona • Tucson, Arizona • Washington D.C., District of Columbia + 11 more
- Conditions
- Autistic Disorder
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Oregon Health and Science University
- Other
- Eligibility
- 20 Years to 44 Years · Female only
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2016
- U.S. locations
- 1
- States / cities
- Oregon City, Oregon
- Conditions
- COVID-19, SARS-CoV 2
- Interventions
- Hydroxychloroquine, Vitamin D
- Drug · Dietary Supplement
- Lead sponsor
- Sanford Health
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1 participant
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Sioux Falls, South Dakota
- Conditions
- Breast, Breast Cancer, Osteoporosis
- Interventions
- High Dose Vitamin D, Standard of Care Vitamin D
- Dietary Supplement
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2024
- U.S. locations
- 1
- States / cities
- Charlotte, North Carolina
- Conditions
- Vitamin D Deficiency
- Interventions
- Not listed
- Lead sponsor
- The Cooper Health System
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 9,000 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Camden, New Jersey
- Conditions
- Healthy, Adult, Calcium, Bone Resorption, Endocrine; Obesity
- Interventions
- Calcium carbonate, Placebo Control
- Dietary Supplement
- Lead sponsor
- University of Georgia
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 14 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Athens, Georgia
- Conditions
- Pregnancy
- Interventions
- Vitamin D dynamics-pregnant, Vitamin D dynamics-nonpregnant
- Other
- Lead sponsor
- Cornell University
- Other
- Eligibility
- 20 Years to 39 Years · Female only
- Enrollment
- 160 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2029
- U.S. locations
- 1
- States / cities
- Rochester, New York
- Conditions
- Non-Hodgkin's Lymphoma, Lymphoma
- Interventions
- Zoledronic Acid, Vitamin D, Calcium Carbonate
- Drug
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 135 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2011
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Osteogenesis Imperfecta
- Interventions
- Vitamin D, Calcium
- Dietary Supplement
- Lead sponsor
- Amgen
- Industry
- Eligibility
- 5 Years to 19 Years
- Enrollment
- 71 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2028
- U.S. locations
- 1
- States / cities
- Indianapolis, Indiana
- 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
- Urticaria
- Interventions
- Vitamin D (4,000 IU/day), Vitamin D (400 IU/day), Omalizumab
- Dietary Supplement · Drug
- Lead sponsor
- Selina Gierer, D.O.
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- U.S. locations
- 1
- States / cities
- Kansas City, Kansas
- Conditions
- Cervical Dilation Prior to Dilation and Evacuation
- Interventions
- Same-Day Dilapan-S, Overnight Dilapan-S
- Device
- Lead sponsor
- Planned Parenthood of Greater New York
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 54 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2020
- U.S. locations
- 1
- States / cities
- New York, New York