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Showing 1–24 of 63 matching trials from the live ClinicalTrials.gov search.

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Filters: Intervention: 4000 IU vitamin D3 Clear all

Conditions: Arterial Dysfunction, Chronic Kidney Disease
Interventions: Cholecalciferol, Calcitriol; Drug
Lead sponsor: University of Colorado, Denver; Other
Eligibility: 18 Years to 80 Years
Enrollment: 128 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 1
States / cities: Aurora, Colorado

Conditions: Colorectal Cancer
Interventions: Vitamin D intervention, Placebo intervention; Dietary Supplement
Lead sponsor: Baylor University; Other
Eligibility: 18 Years to 79 Years
Enrollment: 43 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2023
U.S. locations: 1
States / cities: Waco, Texas

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: Tuberculosis, Vitamin D, Immunity
Interventions: Vitamin D (600 IU), Vitamin D (2000 IU), Vitamin D (4000 IU), Placebo; Dietary Supplement · Other
Lead sponsor: Cornell University; Other
Eligibility: 18 Years to 60 Years
Enrollment: 200 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2023
U.S. locations: 1
States / cities: Ithaca, New York

Conditions: Melanoma, Skin
Interventions: Vitamin D3, placebo and vitamin D; Drug
Lead sponsor: Stanford University; Other
Eligibility: 18 Years to 75 Years · Female only
Enrollment: 24 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2014
U.S. locations: 1
States / cities: Palo Alto, California

Conditions: Asthma
Interventions: vitamin D3 4000 IU, Placebo; Drug
Lead sponsor: Juan Celedon, MD; Other
Eligibility: 6 Years to 16 Years
Enrollment: 192 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2016 – 2019
U.S. locations: 7
States / cities: San Francisco, California • Denver, Colorado • Boston, Massachusetts + 4 more

Conditions: Urticaria, Angioedema, Hives, Swelling
Interventions: High Dose Vitamin D3, Low Dose Vitamin D3; Drug
Lead sponsor: University of Nebraska; Other
Eligibility: 19 Years and older
Enrollment: 42 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2013
U.S. locations: 1
States / cities: Omaha, Nebraska

Conditions: Diabetic Kidney Disease
Interventions: Vitamin D3; Dietary Supplement
Lead sponsor: Medical University of South Carolina; Other
Eligibility: 18 Years and older
Enrollment: 54 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2013
U.S. locations: 1
States / cities: Charleston, South Carolina

Conditions: Cutaneous Lupus Erythematosus
Interventions: vitamin D; Dietary Supplement
Lead sponsor: Emory University; Other
Eligibility: 18 Years and older
Enrollment: 3 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2011 – 2013
U.S. locations: 1
States / cities: Atlanta, Georgia

Conditions: Gestational Hypertension, Toxemia, Superimposed Preeclampsia, Eclampsia, HELLP Syndrome
Interventions: Vitamin D3; Drug
Lead sponsor: Stony Brook University; Other
Eligibility: 18 Years and older · Female only
Enrollment: 412 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2016 – 2019
U.S. locations: 1
States / cities: Stony Brook, New York

Conditions: Protein
Interventions: Conjugated linoleic acid, Vitamin D, Conjugated linoleic acid and Vitamin D, Corn oil (placebo); Dietary Supplement · Other
Lead sponsor: Washington University School of Medicine; Other
Eligibility: 65 Years to 85 Years
Enrollment: 40 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2017 – 2019
U.S. locations: 1
States / cities: St Louis, Missouri

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: Prostate Cancer
Interventions: cholecalciferol, placebo; Drug · Other
Lead sponsor: Medical University of South Carolina; Other
Eligibility: 19 Years to 90 Years · Male only
Enrollment: 50 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 2
States / cities: Charleston, South Carolina

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: Seasonal Allergic Rhinitis
Interventions: Vitamin D3, Placebo, Fluticasone Propionate; Drug
Lead sponsor: University of Chicago; Other
Eligibility: 18 Years to 45 Years
Enrollment: 35 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2011
U.S. locations: 1
States / cities: Chicago, Illinois

Conditions: Vitamin D Deficiency, Burns
Interventions: Ergocalciferol Capsules; Drug
Lead sponsor: University of Texas Southwestern Medical Center; Other
Eligibility: 18 Years and older
Enrollment: 48 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2025
U.S. locations: 1
States / cities: Dallas, Texas

Conditions: Obesity, Insulin Resistance, Inflammation
Interventions: Vitamin D, Placebo; Dietary Supplement · Drug
Lead sponsor: Purdue University; Other
Eligibility: 18 Years to 35 Years
Enrollment: 34 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2008 – 2010
U.S. locations: 1
States / cities: West Lafayette, Indiana

Conditions: Renal Insufficiency, Chronic, Kidney Failure, Chronic
Interventions: NanoD4CKD, MicroD4CKD; Dietary Supplement
Lead sponsor: University of Florida; Other
Eligibility: 18 Years and older
Enrollment: 21 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2023
U.S. locations: 1
States / cities: Gainesville, Florida

Conditions: Muscle Pain, Joint Pain
Interventions: Vitamin D3; Drug
Lead sponsor: HealthPartners Institute; Other
Eligibility: 18 Years and older · Female only
Enrollment: 116 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2015
U.S. locations: 1
States / cities: Minneapolis, Minnesota

Conditions: Osteoporosis, Aging
Interventions: Vitamin D3, Calcium Citrate (Citracal); Dietary Supplement
Lead sponsor: Creighton University; Other
Eligibility: 57 Years and older · Female only
Enrollment: 273 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2011
U.S. locations: 1
States / cities: Omaha, Nebraska

Conditions: Breast Cancer
Interventions: Vitamin D; Drug
Lead sponsor: Stanford University; Other
Eligibility: 18 Years and older · Female only
Enrollment: 63 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2008 – 2011
U.S. locations: 1
States / cities: Stanford, California

Conditions: Deficiency of Vitamin D3
Interventions: D3 2000 IU/day, D3 4000 IU/day, D3 50,000 IU weekly, vitamin D3 800 IU/day; Dietary Supplement
Lead sponsor: University of California, San Francisco; Other
Eligibility: 65 Years and older
Enrollment: 86 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2014
U.S. locations: 1
States / cities: San Francisco, California

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: Sarcopenia, Falls
Interventions: vitamin D3, Placebo; Dietary Supplement
Lead sponsor: Tufts University; Other
Eligibility: 65 Years and older · Female only
Enrollment: 24 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2006 – 2011
U.S. locations: 1
States / cities: Boston, Massachusetts