- 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
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.
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Showing 1–24
of 29
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Deficiency of Vitamin D3, COPD
- Interventions
- Cholecalciferol, multivitamin, Placebo
- Dietary Supplement
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- 50 Years to 85 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2018
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Vitamin D Deficiency
- Interventions
- Oral Vitamin D3, Ultraviolet Light
- Dietary Supplement · Radiation
- Lead sponsor
- Rockefeller University
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 118 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2015
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Aging
- Interventions
- Vitamin D3 (cholecalciferol), fish oil
- Dietary Supplement · Drug
- Lead sponsor
- Augusta University
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 1,054 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2021
- U.S. locations
- 1
- States / cities
- Augusta, Georgia
- Conditions
- Cerebral Palsy
- Interventions
- HMB + Vitamin D3
- Dietary Supplement
- Lead sponsor
- Gillette Children's Specialty Healthcare
- Other
- Eligibility
- 13 Years to 17 Years
- Enrollment
- 7 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- Saint Paul, Minnesota
- Conditions
- Dry Eye Syndrome
- Interventions
- Omega 3, Vitamins A, D3 and E
- Dietary Supplement
- Lead sponsor
- Eye and Vision Technologies and Research Institute
- Network
- Eligibility
- 18 Years to 79 Years
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012
- U.S. locations
- 4
- States / cities
- Conifer, Colorado • Oak Lawn, Illinois • Lexington, Kentucky + 1 more
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D, Placebo, Vitamin D + L-cysteine, L-cysteine
- Drug
- Lead sponsor
- Louisiana State University Health Sciences Center Shreveport
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 165 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2022
- U.S. locations
- 1
- States / cities
- Shreveport, Louisiana
- Conditions
- Cystic Fibrosis, Respiratory Tract Infections
- Interventions
- Cholecalciferol
- Dietary Supplement
- Lead sponsor
- Emory University
- Other
- Eligibility
- 16 Years and older
- Enrollment
- 91 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2017
- U.S. locations
- 5
- States / cities
- Birmingham, Alabama • Atlanta, Georgia • Iowa City, Iowa + 2 more
- Conditions
- Vitamin D Deficiency
- Interventions
- 400 IU Vitamin D3 (cholecalciferol), 2400 IU Vitamin D3 (cholecalciferol), 6400 IU Vitamin D3 (cholecalciferol)
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 460 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2012
- U.S. locations
- 2
- States / cities
- Rochester, New York • Charleston, South Carolina
- Conditions
- Complications of Bariatric Procedures, Avitaminosis
- Interventions
- Chewable Multivitamin with Iron, PatchMD Vitamin D3/Calcium Patch, PatchMD Multivitamin Patch, PatchMD B12 Energy Plus Patch, Chewable Calcium, Quick Dissolve B12
- Dietary Supplement
- Lead sponsor
- California State Polytechnic University, Pomona
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2017
- U.S. locations
- 1
- States / cities
- Brea, California
- Conditions
- Hot Flushes, Menopause, Premature, Obesity, Vitamin D Deficiency
- Interventions
- Vitamin D, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Kaiser Permanente
- Other
- Eligibility
- 40 Years to 60 Years · Female only
- Enrollment
- 23 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2012
- U.S. locations
- 1
- States / cities
- Portland, Oregon
- Conditions
- Chronic Obstructive Pulmonary Disease, Muscle Weakness
- Interventions
- Cholecalciferol, Laboratory Biomarker Analysis, Multivitamin, Placebo, Questionnaire Administration
- Dietary Supplement · Other
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 4 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2017
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Vitamin d Deficiency
- Interventions
- Blood draw pre-operatively, Blood draw post-operative Day 1, Blood draw post-operative Day 2
- Procedure
- Lead sponsor
- University of Missouri, Kansas City
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016
- U.S. locations
- 1
- States / cities
- Kansas City, Missouri
- Conditions
- Vitamin D Deficiency, Cystic Fibrosis
- Interventions
- High-Dose Vitamin D3, Stool Sample, Sputum Sample, Sham Comparator, Blood draw
- Dietary Supplement · Other · Procedure
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 41 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2017
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Heart Failure
- Interventions
- Cholecalciferol
- Dietary Supplement
- Lead sponsor
- Case Western Reserve University
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 64 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio
- Conditions
- X-linked Adrenoleukodystrophy
- Interventions
- vitamin D3
- Dietary Supplement
- Lead sponsor
- Stanford University
- Other
- Eligibility
- 18 Months to 25 Years · Male only
- Enrollment
- 21 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2020
- U.S. locations
- 1
- States / cities
- Palo Alto, California
- Conditions
- Osteopenia
- Interventions
- Calcium Carbonate, Vitamin D3, Risedronate, Bone-loading exercises
- Drug · Behavioral
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 19 Years and older · Female only
- Enrollment
- 276 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2019
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Prostate Cancer
- Interventions
- Vitamin D, Omega-3, Turmeric
- Dietary Supplement
- Lead sponsor
- Case Comprehensive Cancer Center
- Other
- Eligibility
- Male only
- Enrollment
- 37 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2019
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio
- Conditions
- Knee Osteoarthritis
- Interventions
- Vitamin D, Control
- Drug
- Lead sponsor
- Rush University Medical Center
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 137 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2022
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Hypovitaminosis D, Hypovitaminosis
- Interventions
- Vitamin Arm 1, Vitamin Arm 2, Vitamin Arm 3, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Madigan Army Medical Center
- Federal
- Eligibility
- 18 Years to 69 Years
- Enrollment
- 96 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Tacoma, Washington
- Conditions
- Eye Health, Vision, Cognitive Function
- Interventions
- VisionPure Dietary Supplement, Placebo
- Dietary Supplement
- Lead sponsor
- Applied Science & Performance Institute
- Industry
- Eligibility
- 18 Years to 40 Years
- Enrollment
- 15 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 3
- States / cities
- Lutz, Florida • Tampa, Florida
- Conditions
- Hypovitaminosis D
- Interventions
- Standing Phototherapy Kiosk, D3 Oral supplement
- Device · Dietary Supplement
- Lead sponsor
- Madigan Army Medical Center
- Federal
- Eligibility
- 18 Years to 69 Years
- Enrollment
- 106 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Tacoma, Washington
- Conditions
- Colorectal Cancer, Precancerous Condition
- Interventions
- cholecalciferol, placebo
- Dietary Supplement · Other
- Lead sponsor
- Northwestern University
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2012
- U.S. locations
- 2
- States / cities
- Chicago, Illinois
- 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