90
Participants
Start Date
July 1, 2010
Primary Completion Date
August 31, 2025
Study Completion Date
December 30, 2026
Ergocalciferol
Vitamin D2 50,000 units
Placebo
Sugar pill manufactured to mimic ergocalciferol 50,000 units
Calcium Citrate with Vitamin D2
To meet the recommended minimum daily dietary requirements
RECRUITING
University of Texas Southwestern Medical Center, and Parkland Health and Hospital System, Dallas
University of Texas Southwestern Medical Center
OTHER