- 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
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 49–72
of 331
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Vitamin D Deficiency, Falls
- Interventions
- 200 IU/d cholecalciferol, 1000 IU/d cholecalciferol, 2000 IU/d cholecalciferol, 4000 IU/d cholecalciferol
- Dietary Supplement
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 70 Years and older
- Enrollment
- 688 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2019
- U.S. locations
- 2
- States / cities
- Baltimore, Maryland • Hagerstown, Maryland
- Conditions
- Overweight and Obesity, Vitamin D Deficiency, Magnesium Deficiency, Cardiovascular Risk Factor
- Interventions
- Vitamin D and magnesium, Vitamin D, Placebo
- Dietary Supplement
- Lead sponsor
- Drexel University
- Other
- Eligibility
- 30 Years to 70 Years
- Enrollment
- 109 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2021
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Postmenopausal Women
- Interventions
- 10 vit. D deficient subjects take vit. D for 3 months.
- Procedure
- Lead sponsor
- University of Kansas
- Other
- Eligibility
- 50 Years to 90 Years · Female only
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2004 – 2007
- U.S. locations
- 1
- States / cities
- Kansas City, Kansas
- Conditions
- Vitamin D Deficiency, Secondary Hyperparathyroidism, Obesity
- Interventions
- Ergocalciferol, Cholecalciferol
- Drug
- Lead sponsor
- Weill Medical College of Cornell University
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2007
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Chronic Kidney Disease Mineral and Bone Disorder, Renal Osteodystrophy, Vascular Calcification, Hyperparathyroidism; Secondary, Renal
- Interventions
- Etelcalcetide
- Drug
- Lead sponsor
- Thomas Nickolas, MD MS
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Chronic Hepatitis C
- Interventions
- Not listed
- Lead sponsor
- Avera McKennan Hospital & University Health Center
- Other
- Eligibility
- 20 Years to 60 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2019
- U.S. locations
- 1
- States / cities
- Sioux Falls, South Dakota
- Conditions
- Vitamin D Deficiency, Orthostatic Intolerance, Nausea
- Interventions
- vitamin D supplement
- Dietary Supplement
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 10 Years to 18 Years
- Enrollment
- 31 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2022
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- Conditions
- X-linked Hypophosphatemia
- Interventions
- Placebo, KRN23
- Drug
- Lead sponsor
- Kyowa Kirin Co., Ltd.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 42 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2013
- U.S. locations
- 4
- States / cities
- New Haven, Connecticut • Indianapolis, Indiana • Durham, North Carolina + 1 more
- Conditions
- Infertility,Male, Vitamin D Deficiency
- Interventions
- Vitamin D
- Diagnostic Test
- Lead sponsor
- Sanford Health
- Other
- Eligibility
- 21 Years to 56 Years · Male only
- Enrollment
- 230 participants
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- Sioux Falls, South Dakota
- Conditions
- HIV Infections
- Interventions
- Vitamin D control dose, Vitamin D supplementation-
- Drug
- Lead sponsor
- University Hospitals Cleveland Medical Center
- Other
- Eligibility
- 8 Years to 25 Years
- Enrollment
- 190 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2016
- U.S. locations
- 2
- States / cities
- Atlanta, Georgia • Cleveland, Ohio
- Conditions
- Hypophosphatemic Rickets, X Linked Dominant
- Interventions
- nasal salmon calcitonin, Saline Nasal Spray Placebo
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 21 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Kidney Transplantation, Vitamin D Deficiency
- Interventions
- Standard vitamin D3 treatment, High dose vitamin D3 treatment
- Dietary Supplement
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 19 Years and older
- Enrollment
- 116 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2023
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Vitamin d Deficiency
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- University of Delaware
- Other
- Eligibility
- 18 Years to 30 Years · Female only
- Enrollment
- 22 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2025
- U.S. locations
- 1
- States / cities
- Newark, Delaware
- Conditions
- Vitamin D Deficiency, Metabolic Syndrome
- Interventions
- RDA Vitamin D3 only, Vitamin D2/3 Repletion only, Vitamin D2/3 Repletion + AEX, Vitamin D2/3 Repletion + RT
- Dietary Supplement · Other
- Lead sponsor
- Baltimore VA Medical Center
- Federal
- Eligibility
- 40 Years to 85 Years
- Enrollment
- 39 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Vitamin D Deficiency
- Interventions
- Prenatal Vitamin, Cholecalciferol (Vitamin D3)
- Drug
- Lead sponsor
- Children's Hospital Medical Center, Cincinnati
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 192 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2012
- U.S. locations
- 1
- States / cities
- Cincinnati, Ohio
- Conditions
- Hypovitaminosis D
- Interventions
- Vitamin D, Placebo candy
- Dietary Supplement · Other
- Lead sponsor
- University of New Mexico
- Other
- Eligibility
- 5 Years to 14 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Albuquerque, New Mexico
- Conditions
- Lead Poisoning, Vitamin D Deficiency
- Interventions
- d-penicillamine, placebo
- Device · Drug
- Lead sponsor
- FDA Office of Orphan Products Development
- Federal
- Eligibility
- 6 Months to 16 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2007
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Epidermal Nevus Syndrome
- Interventions
- Crysvita (burosumab-twza) Treatment
- Drug
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 6 Months and older · Male only
- Enrollment
- 1 participant
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
- Conditions
- Vitamin D Deficiency, Hematopoietic Stem Cell Transplantation (HSCT)
- Interventions
- Oral Thin Film (OTF) Cholecalciferol (Vitamin D3)
- Dietary Supplement
- Lead sponsor
- Children's Hospital Medical Center, Cincinnati
- Other
- Eligibility
- Not listed
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Cincinnati, Ohio
- Conditions
- Obesity, Vitamin D Deficiency
- Interventions
- Vitamin D3 and Calcium
- Dietary Supplement
- Lead sponsor
- Vadim Sherman, MD
- Other
- Eligibility
- 18 Years to 65 Years · Female only
- Enrollment
- 37 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Phosphorus and Calcium Disorders, Chronic Kidney Disease Mineral and Bone Disorder, Chronic Kidney Diseases
- Interventions
- High Phosphorus Diet, Low Phosphorus Diet
- Other
- Lead sponsor
- University of Minnesota
- Other
- Eligibility
- 30 Years to 75 Years
- Enrollment
- 3 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2023
- U.S. locations
- 1
- States / cities
- Indianapolis, Indiana
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D2, Placebo
- Drug · Other
- Lead sponsor
- Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
- Other
- Eligibility
- 18 Years to 89 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2024
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Generalized Arterial Calcification of Infancy, Autosomal Recessive Hypophosphatemic Rickets Type2
- Interventions
- Not listed
- Lead sponsor
- National Human Genome Research Institute (NHGRI)
- NIH
- Eligibility
- 1 Year to 110 Years
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland