Bone mineral density (BMD) is the amount of bone mineral in bone tissue. BMD scan was done using dual energy x-ray absorptiometry (DXA). It is used to identify osteoporosis, determine risk for fractures, and measure response to osteoporosis treatment. The percentage change from Baseline for BMD was calcuated as the value at the indicated time point minus the Baseline value multiplied by 100 and divided by the Baseline value. The analysis was performed by Analysis of Covariance (ANCOVA) model adjusted for treatment, region and Baseline BMD for the skeletal site under consideration as a continuous covariate for assessment. Region and treatment by region interaction was included in the model. Screening visit was considered as Baseline for BMD. For participants who withdrew early, the missing BMD assessments was estimated by the Last Observation Carried Forward (LOCF), provided the assessment was taken on or after at least one month on-therapy.

Bone mineral density (BMD) at the lumbar spine was measured by the dual-energy x-ray absorptiometry (DXA) scanner. The mean percent change from Baseline in BMD was calculated as: (value at Month 6 minus Baseline value) \* 100 / Baseline value. Analysis was performed using an Analysis of Covariance (ANCOVA) model with terms for treatment and baseline BMD at the lumbar spine (as a continuous covariate).

Mean percent change from Baseline in lumbar spine bone mineral density (BMD) was measured by the dual-energy x-ray absorptiometry (DXA) scanner. Analyses were performed using the Analysis of Covariance (ANCOVA) model adjusting for treatment and Baseline BMD for the skeletal site under consideration as a continuous covariate. Percentage change from Baseline=(measure at Month 6 - measure at Baseline) divided by the measure at Baseline \* 100.