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Showing 1–24 of 340 matching trials from the live ClinicalTrials.gov search.

Filters: Condition: Vitamin d Deficiency Clear all

Conditions: Vitamin D Deficiency
Interventions: vitamin D, Placebo; Dietary Supplement · Other
Lead sponsor: Northwestern University; Other
Eligibility: 18 Years to 47 Years · Female only
Enrollment: 67 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2009 – 2010
U.S. locations: 1
States / cities: Chicago, Illinois

Conditions: Obesity, Vitamin D Deficiency
Interventions: Vitamin D3; Dietary Supplement
Lead sponsor: University of Pittsburgh; Other
Eligibility: 10 Years to 18 Years
Enrollment: 225 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2013 – 2018
U.S. locations: 1
States / cities: Pittsburgh, Pennsylvania

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: Vitamin D Deficiency
Interventions: High Dose Vitamin D3, Low Dose Vitamin D3, Placebo; Dietary Supplement
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: Up to 75 Years · Female only
Enrollment: 230 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2014
U.S. locations: 1
States / cities: Madison, Wisconsin

Conditions: Vitamin D Deficiency
Interventions: cholecalciferol (vitamin D3), cholecalciferol; Drug
Lead sponsor: Medical University of South Carolina; Other
Eligibility: 16 Years to 45 Years · Female only
Enrollment: 501 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2004 – 2010
U.S. locations: 1
States / cities: Charleston, South Carolina

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: Inflammatory Bowel Disease, Crohn Disease, Ulcerative Colitis, Vitamin D Deficiency
Interventions: vitamin D3; Dietary Supplement
Lead sponsor: Boston Children's Hospital; Other
Eligibility: 5 Years to 25 Years
Enrollment: 50 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2020 – 2025
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Vitamin D Deficiency
Interventions: Cholecalciferol; Dietary Supplement
Lead sponsor: Children's Hospital of Philadelphia; Other
Eligibility: 12 Years to 17 Years
Enrollment: 39 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2011 – 2012
U.S. locations: 1
States / cities: Philadelphia, Pennsylvania

Conditions: Cystic Fibrosis
Interventions: Vitamin D Powder, Vitamin D Oil; Dietary Supplement
Lead sponsor: Emory University; Other
Eligibility: 18 Years to 59 Years
Enrollment: 17 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2013 – 2015
U.S. locations: 1
States / cities: Atlanta, Georgia

Conditions: Autism, Vitamin D Deficiency
Interventions: Liquid Vitamin D; Drug
Lead sponsor: University of California, San Francisco; Other
Eligibility: 3 Years to 8 Years
Enrollment: 10 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2015
U.S. locations: 1
States / cities: San Francisco, California

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, Osteoporosis
Interventions: Vitamin D, placebo; Drug
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: 55 Years and older
Enrollment: 96 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2001 – 2004
U.S. locations: 1
States / cities: Madison, Wisconsin

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: Chronic Kidney Disease
Interventions: Not listed
Lead sponsor: Saint Louis VA Medical Center; Federal
Eligibility: 18 Years to 80 Years
Healthy volunteers: Healthy volunteers not accepted
U.S. locations: 1
States / cities: St Louis, Missouri

Conditions: HIV Infections
Interventions: Alendronate, Calcium carbonate, Vitamin D; Drug
Lead sponsor: National Institute of Allergy and Infectious Diseases (NIAID); NIH
Eligibility: 25 Years and older
Enrollment: 80 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: Ends 2006
U.S. locations: 28
States / cities: Birmingham, Alabama • Los Angeles, California • San Diego, California + 17 more

Conditions: Hyperparathyroidism
Interventions: Vitamin D, Four-dimensional computed tomography (4DCT); Drug · Device
Lead sponsor: M.D. Anderson Cancer Center; Other
Eligibility: 21 Years and older
Enrollment: 22 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2018
U.S. locations: 1
States / cities: Houston, Texas

Conditions: Vitamin D Deficiency, Polytrauma, Orthopedic Disorder
Interventions: Ergocalciferol 8000 IU/ML Oral Liquid [DRISDOL], Propylene Glycol; Drug
Lead sponsor: New York City Health and Hospitals Corporation; Other
Eligibility: 18 Years to 65 Years
Enrollment: 60 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2017 – 2020
U.S. locations: 1
States / cities: The Bronx, New York

Conditions: Vitamin D Deficiency
Interventions: cholecalciferol; Dietary Supplement
Lead sponsor: Tufts University; Other
Eligibility: 50 Years to 69 Years
Enrollment: 62 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2012
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: HIV/AIDS, Vitamin D Deficiency, Smoker Lung
Interventions: Vitamin D3 450,000 IU orally; Drug
Lead sponsor: Emory University; Other
Eligibility: 18 Years and older
Enrollment: 7 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018
U.S. locations: 2
States / cities: Atlanta, Georgia

Conditions: Frail Elderly, Vitamin d Deficiency
Interventions: vitamin D, placebo; Dietary Supplement
Lead sponsor: VA Office of Research and Development; Federal
Eligibility: 65 Years to 95 Years · Male only
Enrollment: 130 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2014
U.S. locations: 1
States / cities: Miami, Florida

Conditions: Vitamin D Deficiency, Arterial Stiffness
Interventions: Low dose vitamin D3, High dose vitamin D3; Dietary Supplement
Lead sponsor: Texas Tech University Health Sciences Center; Other
Eligibility: 65 Years to 89 Years
Enrollment: 52 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2018 – 2021
U.S. locations: 1
States / cities: Lubbock, Texas

Conditions: Crohn's Disease (CD), Ulcerative Colitis (UC)
Interventions: Vitamin D3; Dietary Supplement
Lead sponsor: University of California, San Francisco; Other
Eligibility: 18 Years and older
Enrollment: 30 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2013
U.S. locations: 1
States / cities: Fresno, California

Conditions: Renal Osteodystrophy
Interventions: Not listed
Lead sponsor: Hartmut Malluche, MD; Other
Eligibility: 18 Years and older
Enrollment: 464 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2014
U.S. locations: 1
States / cities: Lexington, Kentucky

Conditions: Primary Hyperparathyroidism, Hypercalcemia, Vitamin D Deficiency, Osteoporosis, Osteopenia
Interventions: Placebo, Vitamin D3; Dietary Supplement
Lead sponsor: Columbia University; Other
Eligibility: 45 Years and older
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2015
U.S. locations: 1
States / cities: New York, New York