565
Participants
Start Date
March 6, 2013
Primary Completion Date
June 30, 2028
Study Completion Date
June 30, 2028
Cholecalciferol
Given PO
Laboratory Biomarker Analysis
Correlative studies
Emory University/Winship Cancer Institute, Atlanta
University of Iowa/Holden Comprehensive Cancer Center, Iowa City
Mayo Clinic, Rochester
Washington University School of Medicine, St Louis
Mayo Clinic in Arizona, Scottsdale
Lead Sponsor
National Cancer Institute (NCI)
NIH
Mayo Clinic
OTHER