- Conditions
- Hypophosphatasia (HPP)
- Interventions
- Asfotase Alfa
- Biological
- Lead sponsor
- Alexion Pharmaceuticals, Inc.
- Industry
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2009
- U.S. locations
- 2
- States / cities
- St Louis, Missouri • Durham, North Carolina
Search Results
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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 243
matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Asthma, Vitamin D Deficiency
- Interventions
- Vitamin D2 + vitamin D3, Vitamin D3
- Drug
- Lead sponsor
- Nationwide Children's Hospital
- Other
- Eligibility
- 8 Years to 17 Years
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- Columbus, Ohio
- Conditions
- Obesity, Pediatric, Obesity, Childhood, Obesity, Morbid, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 5 Years to 11 Years
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- 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
- 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
- Type 1 Diabetes Mellitus
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- Corewell Health East
- Other
- Eligibility
- 1 Year to 18 Years
- Enrollment
- 75 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Royal Oak, Michigan
- Conditions
- Cardiovascular Disease, Vitamin D Deficiency
- Interventions
- Vitamin D3, Placebo
- Dietary Supplement
- Lead sponsor
- Intermountain Health Care, Inc.
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 150 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2020
- U.S. locations
- 1
- States / cities
- Murray, Utah
- Conditions
- Hypophosphatasia (HPP)
- Interventions
- Not listed
- Lead sponsor
- Alexion Pharmaceuticals, Inc.
- Industry
- Eligibility
- 5 Years and older
- Enrollment
- 32 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014
- U.S. locations
- 9
- States / cities
- Atlanta, Georgia • Indianapolis, Indiana • Boston, Massachusetts + 6 more
- Conditions
- Fibrous Dysplasia Of Bone
- Interventions
- Burosumab
- Drug
- Lead sponsor
- National Institute of Dental and Craniofacial Research (NIDCR)
- NIH
- Eligibility
- 1 Year to 99 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Osteomalacia, Neoplasms
- Interventions
- Not listed
- Lead sponsor
- National Institute of Dental and Craniofacial Research (NIDCR)
- NIH
- Eligibility
- 8 Years to 100 Years
- Enrollment
- 45 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2004
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Prediabetes, Vitamin D Deficiency
- Interventions
- Cholecalciferol (vitamin D3)
- Dietary Supplement
- Lead sponsor
- University of Minnesota
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2008
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- Conditions
- Spinal Cord Injury, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- James J. Peters Veterans Affairs Medical Center
- Federal
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 88 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2016
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- X-linked Hypophosphatemia
- Interventions
- KRN23
- Drug
- Lead sponsor
- Kyowa Kirin Co., Ltd.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 29 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2013
- U.S. locations
- 5
- States / cities
- San Francisco, California • New Haven, Connecticut • Indianapolis, Indiana + 2 more
- Conditions
- Morbid Obesity, Vitamin D Deficiency
- Interventions
- vitamin D3 (Replesta), vitamin D
- Dietary Supplement
- 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
- Leg Cramps, Nocturnal
- Interventions
- vitamin d, placebo
- Drug
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 29 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2011
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- 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
- Metabolic Syndrome
- Interventions
- vitamin D3 (cholecalciferol)
- Dietary Supplement
- Lead sponsor
- Allina Health System
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 84 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- 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
- CKD, Chronic Kidney Diseases, Hepcidin, Ergocalciferol, Vitamin D, Iron-deficiency, Anemia
- Interventions
- Ergocalciferol 50000 UNT, Placebo
- Drug
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 19 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
- Conditions
- Vitamin D Deficiency
- Interventions
- 400 IU vitamin D3, 2,000 IU Vitamin D3
- Dietary Supplement
- Lead sponsor
- USDA, Western Human Nutrition Research Center
- Federal
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2013
- U.S. locations
- 2
- States / cities
- Davis, California • Sacramento, California
- Conditions
- Hypovitaminosis D
- Interventions
- vitamin D supplementation
- Dietary Supplement
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2005
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Cardiovascular Disease, Obesity
- Interventions
- Not listed
- Lead sponsor
- Loyola University
- Other
- Eligibility
- 25 Years to 44 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011
- U.S. locations
- 1
- States / cities
- Maywood, Illinois
- 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
- Human Immunodeficiency Virus (HIV), Vitamin D Deficiency, HIV Infections
- Interventions
- Vitamin D, Placebo
- Drug · Other
- Lead sponsor
- University Hospitals Cleveland Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 45 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio