- Conditions
- Type 2 Diabetes
- Interventions
- vitamin D3, cholecalciferol, Inactive comparator
- Dietary Supplement
- Lead sponsor
- Augusta University
- Other
- Eligibility
- 19 Years to 60 Years
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010
- U.S. locations
- 1
- States / cities
- Augusta, Georgia
Search Results
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Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 25–48
of 24
matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Respiratory Infection
- Interventions
- High Dose Vitamin D, Standard Dose Vitamin D, Placebo, Usual Care
- Drug · Dietary Supplement
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 107 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2016
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Elevated Blood Pressure, Endothelial Dysfunction
- Interventions
- 2,000 International Units (IU)of vitamin D3
- Dietary Supplement
- Lead sponsor
- Texas Woman's University
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 27 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2016
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Renal Insufficiency, Chronic, Kidney Failure, Chronic
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 21 Years to 70 Years
- Enrollment
- 5 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2020
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Vitamin D Deficiency
- Interventions
- cholecalciferol (vitamin D)
- Dietary Supplement
- Lead sponsor
- University of Miami
- Other
- Eligibility
- 65 Years to 95 Years
- Enrollment
- 105 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2009
- U.S. locations
- 1
- States / cities
- Miami, Florida
- Conditions
- Osteoporosis
- Interventions
- magnesium
- Drug
- Lead sponsor
- University of Tennessee
- Other
- Eligibility
- 55 Years to 75 Years
- Enrollment
- 74 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2002 – 2006
- U.S. locations
- 1
- States / cities
- Memphis, Tennessee
- Conditions
- Healthy, no Evidence of Disease, Skin Cancer
- Interventions
- cholecalciferol
- Drug
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 40 Years and older
- Enrollment
- 25 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Tucson, Arizona
- Conditions
- Vitamin D Deficiency
- Interventions
- Prenatal Vitamin, Cholecalciferol (Vitamin D3)
- Drug
- Lead sponsor
- Children's Hospital Medical Center, Cincinnati
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 192 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2012
- U.S. locations
- 1
- States / cities
- Cincinnati, Ohio
- Conditions
- Vitamin D Supplementation
- Interventions
- Supplemental Vitamin D
- Drug
- Lead sponsor
- Boston Children's Hospital
- Other
- Eligibility
- 11 Years to 18 Years
- Enrollment
- 56 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Chronic Obstructive Pulmonary Disease, Muscle Weakness
- Interventions
- Cholecalciferol, Laboratory Biomarker Analysis, Multivitamin, Placebo, Questionnaire Administration
- Dietary Supplement · Other
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 4 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2017
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Crohn's Disease, Vitamin D Deficiency
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 8 Years to 18 Years
- Enrollment
- 3 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2017
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Insulin Resistance
- Interventions
- 4,000 IU vitamin D3
- Dietary Supplement
- Lead sponsor
- University of Missouri-Columbia
- Other
- Eligibility
- 9 Years to 19 Years
- Enrollment
- 15 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- Columbia, Missouri
- Conditions
- COVID-19, Vitamin D Deficiency, Respiratory Viral Infection
- Interventions
- Daily Vitamin D3, Daily placebo, Bolus vitamin D3, Bolus placebo
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 95 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2023
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- Parkinson Disease
- Interventions
- Vitamin D3, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Memorial Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 23 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2013
- U.S. locations
- 1
- States / cities
- Johnstown, Pennsylvania
- Conditions
- Neuromuscular Function
- Interventions
- Vitamin D, Placebo
- Dietary Supplement
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 65 Years to 89 Years
- Enrollment
- 136 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2018
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- Conditions
- Prematurity; Extreme
- Interventions
- Vitamin D supplementation, No additional vitamin D supplementation
- Dietary Supplement · Other
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 1 Day to 4 Days
- Enrollment
- 126 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2027
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
- Conditions
- IBD, Ulcerative Colitis, Crohn Disease
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Boston Children's Hospital
- Other
- Eligibility
- 7 Years to 25 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2023
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Stage, Colon Cancer, Stage I-III Colon Cancer, Stage IV Colon Cancer With Resectable Liver Metastases
- Interventions
- Vitamin D3, Placebo
- Drug
- Lead sponsor
- Dana-Farber Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2027
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Juvenile Rheumatoid Arthritis
- Interventions
- Cholecalciferol, Calcium, Calcium and cholecalciferol, Placebo
- Dietary Supplement · Drug
- Lead sponsor
- University of Missouri-Columbia
- Other
- Eligibility
- 3 Years to 15 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1995 – 2002
- U.S. locations
- 1
- States / cities
- Columbia, Missouri
- Conditions
- Breast Cancer
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- Inova Health Care Services
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 8 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- U.S. locations
- 1
- States / cities
- Fairfax, Virginia
- Conditions
- Muscle Power
- Interventions
- Vitamin D, Placebo
- Dietary Supplement
- Lead sponsor
- Oklahoma State University
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 103 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Stillwater, Oklahoma
- Conditions
- Diabetes Mellitus, Type 1, Hypoglycemia, Diabetes Mellitus, Diabetes, Autoimmune
- Interventions
- Cholecalciferol, Omega 3 fatty acid
- Drug
- Lead sponsor
- Rodolfo Alejandro
- Other
- Eligibility
- 6 Years to 65 Years
- Enrollment
- 27 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2024
- U.S. locations
- 1
- States / cities
- Miami, Florida
- Conditions
- Type 2 Diabetes
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- Florida International University
- Other
- Eligibility
- 30 Years to 70 Years
- Enrollment
- 92 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Miami, Florida
- 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