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Showing 25–48 of 87 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Ergocalciferol (vitamin D2) Clear all

Conditions: Chronic Kidney Disease
Interventions: Vitamin D2 (ergocalciferol), Vitamin D3 (cholecalciferol); Dietary Supplement
Lead sponsor: University of Kansas Medical Center; Other
Eligibility: 18 Years and older
Enrollment: 44 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 1
States / cities: Kansas City, Kansas

Conditions: Chronic Inflammation, Inflammaging
Interventions: Dietary supplement, Placebo; Dietary Supplement · Other
Lead sponsor: Edifice Health; Industry
Eligibility: 18 Years and older
Enrollment: 781 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021 – 2022
U.S. locations: 2
States / cities: Greenbrae, California • Suwanee, Georgia

Conditions: Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis
Interventions: ergocalciferol, Cholecalciferol; Dietary Supplement
Lead sponsor: Boston Children's Hospital; Other
Eligibility: 5 Years to 21 Years
Enrollment: 134 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2008 – 2011
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: HIV-associated Co-morbidities
Interventions: conventional vitamin D treatment, tiered/titrated vitamin D dosing; Dietary Supplement · Drug
Lead sponsor: Andrea Branch; Other
Eligibility: 18 Years to 70 Years
Enrollment: 62 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 1
States / cities: New York, New York

Conditions: Rheumatoid Arthritis, Vitamin D Deficiency
Interventions: Placebo sugar pill, Ergocalciferol; Drug
Lead sponsor: Johns Hopkins University; Other
Eligibility: 18 Years to 75 Years
Enrollment: 139 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2012
U.S. locations: 1
States / cities: Baltimore, Maryland

Conditions: Rheumatoid Arthritis, Hypovitaminosis D
Interventions: Vitamin D, placebo; Dietary Supplement
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: 18 Years to 90 Years
Enrollment: 22 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2009
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: Obesity, Vitamin D Deficiency, Psychosis, Schizophrenia, Schizoaffective Disorder
Interventions: Ergocalciferols; Drug
Lead sponsor: University of Massachusetts, Worcester; Other
Eligibility: 10 Years to 18 Years
Enrollment: 12 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2010
U.S. locations: 1
States / cities: Worcester, Massachusetts

Conditions: Vitamin D Inadequacy, Vitamin D Deficiency
Interventions: Cholecalciferol (vitamin D3), Ergocalciferol (vitamin D2), Placebo; Dietary Supplement
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: 65 Years and older
Enrollment: 64 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2007 – 2008
U.S. locations: 1
States / cities: Madison, Wisconsin

Conditions: Vitamin D Deficiency, Coronary Artery Disease, Endothelial Dysfunction, Inflammation
Interventions: Ergocalciferol, Sugar pill; Drug · Other
Lead sponsor: Seth I. Sokol, M.D.; Other
Eligibility: 18 Years and older
Enrollment: 96 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2008 – 2011
U.S. locations: 2
States / cities: The Bronx, New York

Conditions: Vitamin D Deficiency, Nephrolithiasis
Interventions: vitamin D (ergocalciferol); Drug
Lead sponsor: Brigham and Women's Hospital; Other
Eligibility: 18 Years and older
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2010
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Acne, Eczema, Skin Aging
Interventions: Hemptress Oil; Other
Lead sponsor: Hemptress; Industry
Eligibility: 21 Years to 65 Years
Healthy volunteers: Accepts healthy volunteers
Timeline: 2024
U.S. locations: 1
States / cities: Santa Monica, California

Conditions: Healthy, Vitamin D Deficiency
Interventions: ergocalciferol, placebo pill; Dietary Supplement · Other
Lead sponsor: Massachusetts General Hospital; Other
Eligibility: 9 Years to 18 Years · Female only
Enrollment: 90 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2013
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Muscle Function, Muscle Soreness, Vitamin D Status
Interventions: Vitamin D2 mushroom powder, Placebo; Dietary Supplement · Other
Lead sponsor: Appalachian State University; Other
Eligibility: 20 Years to 40 Years · Male only
Enrollment: 33 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2012 – 2013
U.S. locations: 3
States / cities: Kannapolis, North Carolina

Conditions: Obesity
Interventions: Drisdol (Ergocalciferol) Vitamin D2, Placebo; Drug
Lead sponsor: Stanford University; Other
Eligibility: 11 Years to 17 Years
Enrollment: 40 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2012
U.S. locations: 1
States / cities: Stanford, California

Conditions: Obesity, Vitamin D Deficiency
Interventions: Ergocalciferols; Drug
Lead sponsor: Walter Reed National Military Medical Center; Federal
Eligibility: 18 Years to 65 Years
Enrollment: 44 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2011 – 2017
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Vitamin D Deficiency
Interventions: Vitamin D2, Vitamin D3; Dietary Supplement
Lead sponsor: University of California, Los Angeles; Other
Eligibility: 18 Years and older
Enrollment: 300 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2020
U.S. locations: 1
States / cities: Los Angeles, California

Conditions: End Stage Renal Disease
Interventions: ergocalciferol supplementation, placebo; Dietary Supplement · Other
Lead sponsor: Dialysis Clinic, Inc.; Industry
Eligibility: 18 Years and older
Enrollment: 470 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 12
States / cities: Redding, California • Albany, Georgia • Shreveport, Louisiana + 9 more

Conditions: Graves Disease, Graves' Disease, Hyperthyroidism
Interventions: Ergocalciferol 50,000 IU, Methimazole; Drug
Lead sponsor: Northwell Health; Other
Eligibility: 9 Years to 17 Years
Enrollment: 30 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2027
U.S. locations: 1
States / cities: New Hyde Park, New York

Conditions: Bone Mineralization Defect
Interventions: Vitamin D2; Drug
Lead sponsor: University of California, Los Angeles; Other
Eligibility: 6 Years to 21 Years
Enrollment: 60 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2014
U.S. locations: 2
States / cities: Loma Linda, California • Los Angeles, California

Conditions: CKD Stage 3/4
Interventions: Vitamin D 2mg daily for 2 weeks oral paricalcitol, Placebo; Drug
Lead sponsor: University of Illinois at Chicago; Other
Eligibility: 18 Years and older
Enrollment: 8 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2012
U.S. locations: 1
States / cities: Chicago, Illinois

Conditions: Chronic Kidney Disease Stage 3 and 4
Interventions: Ergocalciferol, Cholecalciferol; Drug
Lead sponsor: The Cleveland Clinic; Other
Eligibility: 18 Years to 99 Years
Enrollment: 19 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2011
U.S. locations: 1
States / cities: Cleveland, Ohio

Conditions: Type 2 Diabetes, Vitamin D Deficiency
Interventions: Vitamin D2, Sugar pill; Dietary Supplement · Other
Lead sponsor: University of Alabama at Birmingham; Other
Eligibility: 12 Years to 18 Years
Enrollment: 31 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2013
U.S. locations: 1
States / cities: Birmingham, Alabama

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