61
Participants
Start Date
August 18, 2014
Primary Completion Date
October 12, 2016
Study Completion Date
October 12, 2016
Vitamin D3
Vitamin D3 1000 IU per day for 12 months
Calcitriol
Calcitriol (Rocaltrol) 0.5 mcg per day for 12 months
Placebo
Placebo (sugar pill) 1 pill per day for 12 months
Columbia University Irving Medical Center, New York
Satellite Healthcare
OTHER
Columbia University
OTHER