Drug: Alendronate versus alfacalcidol (1-alpha OH vitamin D)
Dutch Health Care Insurance Board
Intervention Model: Parallel Assignment
Primary Purpose: Prevention
Percent change in bone mineral density of the lumbar spine (lumbar vertebrae 2 to 4) at 18 months.
Percent change in bone mineral density of the femoral neck and total hip at 18 months and incidence of morphometrical vertebral deformities, symptomatic vertebral fractures and non-vertebral fractures.
18 Years to 90 Years (Adult, Senior)
August 30, 2005
November 29, 2006
UMC Utrecht Utrecht, Netherlands
† Study has passed its completion date and status has not been verified in more than two years.