A Randomized, Double-blind, Placebo-controlled, Dose Response Study of AMG 162 (Denosumab) in Japanese Postmenopausal Osteoporotic Subjects

Inclusion Criteria: - Ambulatory postmenopausal women. - BMD values (g/cm2, Hologic) must be lower than 0.714 at lumbar spine, 0.515 at femoral neck, 0.588 at total hip. - BMD values must not be lower than 0.535 at the lumbar spine, 0.406 at the femoral neck and 0.478 at the total hip. Exclusion Criteria: - Oral bisphosphonate treatments, PTH or PTH derivatives use within the last 12 months and administration of any of anti-osteoporotic treatments within the last 3 months before initial administration of the investigational product. - History of hypocalcemia. - More than two moderate vertebral fractures or any severe vertebral fracture.