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Showing 1–24 of 55 matching trials from the live ClinicalTrials.gov search.

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Filters: Condition: Vitamin D Status Clear all

Conditions: Type 2 Diabetes, Nonalcoholic Fatty Liver Disease, Vitamin D Deficiency
Interventions: Ergocalciferol, placebo; Dietary Supplement
Lead sponsor: University of Massachusetts, Worcester; Other
Eligibility: 10 Years to 50 Years
Enrollment: 12 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2016
U.S. locations: 1
States / cities: Worcester, Massachusetts

Conditions: Hip Arthropathy, Knee Arthropathy, Vitamin D Deficiency
Interventions: Vitamin D3; Dietary Supplement
Lead sponsor: Brigham and Women's Hospital; Other
Eligibility: 18 Years and older
Enrollment: 900 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2024
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Vitamin D Status
Interventions: Tanning spray, UVB; Other
Lead sponsor: Creighton University; Other
Eligibility: 19 Years to 50 Years
Enrollment: 50 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2008 – 2009
U.S. locations: 1
States / cities: Omaha, Nebraska

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: Breast Neoplasms
Interventions: Vitamin D, Calcium carbonate, Vitamin D, Placebo; Dietary Supplement · Drug · Other
Lead sponsor: Washington University School of Medicine; Other
Eligibility: 18 Years and older · Female only
Enrollment: 63 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2009
U.S. locations: 1
States / cities: St Louis, Missouri

Conditions: Neurotoxicity
Interventions: Vitamin D3; Drug
Lead sponsor: Gerald Higa, PharmD.; Other
Eligibility: 18 Years to 90 Years
Enrollment: 9 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012
U.S. locations: 1
States / cities: Morgantown, West Virginia

Conditions: Hemophilia A, Hemophilia B, Vitamin D Deficiency
Interventions: Vitamin D and calcium; Dietary Supplement
Lead sponsor: Virginia Commonwealth University; Other
Eligibility: 2 Years to 21 Years · Male only
Enrollment: 20 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2015
U.S. locations: 1
States / cities: Richmond, Virginia

Conditions: Healthy
Interventions: vitamin D2, vitamin D3; Dietary Supplement
Lead sponsor: Creighton University; Other
Eligibility: 21 Years to 65 Years
Enrollment: 32 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010
U.S. locations: 1
States / cities: Omaha, Nebraska

Conditions: Hypovitaminosis D
Interventions: Not listed
Lead sponsor: Children's Hospital Medical Center, Cincinnati; Other
Eligibility: 1 Day to 1 Week
Enrollment: 120 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2012
U.S. locations: 1
States / cities: Cincinnati, Ohio

Conditions: Hypovitaminosis D
Interventions: Cholecalciferol, Placebo; Dietary Supplement
Lead sponsor: Massachusetts General Hospital; Other
Eligibility: 18 Years to 100 Years
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2015 – 2017
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Burns, Bone Demineralization
Interventions: Vitamin D2, Vitamin D3; Dietary Supplement
Lead sponsor: Shriners Hospitals for Children; Other
Eligibility: 6 Months to 18 Years
Enrollment: 50 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2003 – 2011
U.S. locations: 1
States / cities: Cincinnati, Ohio

Conditions: Healthy, no Evidence of Disease
Interventions: cholecalciferol, questionnaire administration, trivalent influenza vaccine; Dietary Supplement · Other · Biological
Lead sponsor: Roswell Park Cancer Institute; Other
Eligibility: 18 Years to 64 Years
Enrollment: 11 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2011 – 2015
U.S. locations: 1
States / cities: Buffalo, New York

Conditions: Vitamin D Deficiency
Interventions: Tri-Vi-Sol; Dietary Supplement
Lead sponsor: Baylor College of Medicine; Other
Eligibility: Up to 2 Hours
Enrollment: 80 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2008 – 2011
U.S. locations: 3
States / cities: Houston, Texas

Conditions: Cystic Fibrosis
Interventions: ergocalciferol (vitamin D2), Sperti Del Sol Lamp, Vitamin D3; Drug · Device
Lead sponsor: Atlanta VA Medical Center; Federal
Eligibility: 18 Years to 60 Years
Enrollment: 30 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2006 – 2011
U.S. locations: 1
States / cities: Atlanta, Georgia

Conditions: Vitamin D3 Deficiency
Interventions: Vitamin D3 4000 IU in gummy form, Placebo gummy vitamin; Drug
Lead sponsor: Medical University of South Carolina; Other
Eligibility: 18 Years to 45 Years · Female only
Enrollment: 342 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2013 – 2018
U.S. locations: 1
States / cities: Charleston, South Carolina

Conditions: Hypovitaminosis D
Interventions: Cholecalciferol, Placebo; Dietary Supplement
Lead sponsor: Massachusetts General Hospital; Other
Eligibility: 18 Years and older
Enrollment: 30 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Vitamin D Deficiency
Interventions: Vitamin D drops, 200 or 400 or 600 IU/day or 800 IU/day; Dietary Supplement
Lead sponsor: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD); NIH
Eligibility: 3 Weeks to 5 Weeks
Enrollment: 398 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2006 – 2011
U.S. locations: 1
States / cities: Coralville, Iowa

Conditions: Nutritional Status, Serum Biomarkers
Interventions: Dietary Supplement (Kids Multi & Omegas); Dietary Supplement
Lead sponsor: SF Research Institute, Inc.; Network
Eligibility: 4 Years to 15 Years
Enrollment: 30 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2026
U.S. locations: 1
States / cities: San Francisco, California

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
Interventions: Vitamin D-enriched mushrooms, Study Powder; Other
Lead sponsor: Purdue University; Other
Eligibility: 30 Years to 69 Years
Enrollment: 36 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2024
U.S. locations: 1
States / cities: West Lafayette, Indiana

Conditions: Vitamin D Deficiency, Vitamin D Insufficiency
Interventions: UVB treatment, Sham comparator; Device
Lead sponsor: Boston University; Other
Eligibility: 22 Years and older
Enrollment: 69 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2023
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Chronic Kidney Disease
Interventions: 1000 IU of Vitamin D3, 4000 IU of Vitamin D3; Drug
Lead sponsor: Emory University; Other
Eligibility: 9 Years to 21 Years
Enrollment: 98 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2013 – 2014
U.S. locations: 1
States / cities: Atlanta, Georgia

Conditions: Vitamin D Deficiency, Pregnancy
Interventions: cholecalciferol (vitamin D3), cholecalciferol; Drug
Lead sponsor: Medical University of South Carolina; Other
Eligibility: 16 Years to 45 Years · Female only
Enrollment: 564 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2007 – 2009
U.S. locations: 1
States / cities: Columbia, South Carolina

Conditions: Sepsis, Severe Sepsis, End Organ Damage, Multi Organ Failure
Interventions: vitamin D3, Placebo; Drug
Lead sponsor: Massachusetts General Hospital; Other
Eligibility: 18 Years to 80 Years
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2017 – 2022
U.S. locations: 1
States / cities: Boston, Massachusetts