- Conditions
- Sickle Cell Disease, Anemia, Sickle Cell, Anemia, Hemolytic, Congenital, Respiratory Tract Diseases, Respiration Disorders, Acute Chest Syndrome, Lung Diseases, Asthma, Respiratory Tract Infections, Nutrition Disorders, Deficiency Diseases Vitamin, Vitamin D Deficiency
- Interventions
- Daily oral vitamin D3, 3,333 IU, Monthly oral vitamin D3, 100,000 IU, Placebo oral tablet
- Drug
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 3 Years to 20 Years
- Enrollment
- 58 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2024
- U.S. locations
- 1
- States / cities
- New York, New York
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Showing 1–6
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- Conditions
- Hot Flushes, Menopause, Premature, Obesity, Vitamin D Deficiency
- Interventions
- Vitamin D, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Kaiser Permanente
- Other
- Eligibility
- 40 Years to 60 Years · Female only
- Enrollment
- 23 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2012
- U.S. locations
- 1
- States / cities
- Portland, Oregon
- Conditions
- Cystic Fibrosis, Respiratory Tract Infections
- Interventions
- Cholecalciferol
- Dietary Supplement
- Lead sponsor
- Emory University
- Other
- Eligibility
- 16 Years and older
- Enrollment
- 91 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2017
- U.S. locations
- 5
- States / cities
- Birmingham, Alabama • Atlanta, Georgia • Iowa City, Iowa + 2 more
- 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
- 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
- Vitamin D Deficiency
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- Parkview Medical Center
- Other
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Pueblo, Colorado