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Showing 73–96 of 344 matching trials from the live ClinicalTrials.gov search.

Filters: Condition: Vitamin D Deficiency Disease Clear all

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

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: Hypophosphatasia (HPP)
Interventions: asfotase alfa; Biological
Lead sponsor: Alexion Pharmaceuticals, Inc.; Industry
Eligibility: Up to 36 Months
Enrollment: 11 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2008 – 2010
U.S. locations: 6
States / cities: Little Rock, Arkansas • Wilmington, Delaware • Springfield, Missouri + 3 more

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: Vitamin D Deficiency, Obesity, Insulin Resistance
Interventions: Not listed
Lead sponsor: University of Alabama at Birmingham; Other
Eligibility: 10 Years to 18 Years · Female only
Enrollment: 114 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2010
U.S. locations: 1
States / cities: Birmingham, Alabama

Conditions: Vitamin D Deficiency
Interventions: 7 continuous days of aerobic training; Other
Lead sponsor: David Travis Thomas; Other
Eligibility: 65 Years to 75 Years
Enrollment: 7 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2013 – 2015
U.S. locations: 1
States / cities: Lexington, Kentucky

Conditions: X-linked Hypophosphatemia, Hypophosphatemic Rickets
Interventions: No intervention; Other
Lead sponsor: Ultragenyx Pharmaceutical Inc; Industry
Eligibility: Not listed
Enrollment: 782 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018 – 2032
U.S. locations: 24
States / cities: Birmingham, Alabama • Los Angeles, California • San Diego, California + 18 more

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: 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: 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

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
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: 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
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: Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
Interventions: CTAP101 30 μg capsules, Sugar pill to CTAP101 30 μg capsules; Drug · Other
Lead sponsor: OPKO IP Holdings II, Inc.; Industry
Eligibility: 18 Years and older
Enrollment: 213 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2014
U.S. locations: 1
States / cities: Bannockburn, Illinois

Conditions: Depression, Postpartum Depression
Interventions: Vitamin D3 (Cholecalciferol), Placebo; Dietary Supplement · Other
Lead sponsor: St. Luke's-Roosevelt Hospital Center; Other
Eligibility: 18 Years and older · Female only
Enrollment: 151 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2016
U.S. locations: 1
States / cities: New York, New York

Conditions: Congestive Heart Failure, Hypovitaminosis D, Hyperparathyroidism
Interventions: Not listed
Lead sponsor: State University of New York - Downstate Medical Center; Other
Eligibility: 18 Years and older
Enrollment: 48 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2008
U.S. locations: 1
States / cities: Brooklyn, New York

Conditions: Cardiovascular Disease, Chronic Kidney Disease, Diabetes, Vitamin D Deficiency, Hyperparathyroidism
Interventions: Not listed
Lead sponsor: University of Nebraska; Other
Eligibility: 19 Years and older
Enrollment: 338 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2006 – 2023
U.S. locations: 1
States / cities: Omaha, Nebraska

Conditions: Polycystic Ovarian Syndrome in Adolescent Females, Vitamin D Deficiency
Interventions: Vitamin D 4000IU daily, Placebo; Drug
Lead sponsor: Yale University; Other
Eligibility: 13 Years to 21 Years · Female only
Enrollment: 60 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2028
U.S. locations: 1
States / cities: New Haven, Connecticut

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: Multiple Myeloma
Interventions: Lenalidomide, Maintenance Vitamin D, No maintenance Vitamin D; Drug
Lead sponsor: Amany Keruakous, MD, MS.; Other
Eligibility: 18 Years and older
Enrollment: 100 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2028
U.S. locations: 1
States / cities: Augusta, Georgia