Increases in hip and spine bone mineral density are predictive for vertebral antifracture efficacy with ibandronate.

The relationship between bisphosphonate-induced bone mineral density (BMD) gains and antifracture efficacy remains to be fully elucidated. Data from two antifracture studies were analyzed. Postmenopausal osteoporotic women received oral (2.

Effects of oral ibandronate administered daily or intermittently on fracture risk in postmenopausal osteoporosis.

Unlabelled: Oral daily (2.5 mg) and intermittent ibandronate (between-dose interval of >2 months), delivering a similar cumulative exposure, were evaluated in 2946 osteoporotic women with prevalent vertebral fracture. Significant reduction in incident vertebral fracture risk by 62% and 50%, respectively, was shown after 3 years.