2-Year Therapy With Teriparatide vs 1-yr Therapy Followed by 1-Year of Raloxifene or Calcium/Vit D in Severe Postmenopausal Osteoporosis

Inclusion Criteria

• •Ambulatory women greater or equal to 55 years, at least 2 years postmenopausal.
• •Lumbar spine or total hip or femoral neck bone mineral density measurement must be at least 2.5 standard deviations (SD) below the average bone mass for young women (T-score -2.5 or less).
• •Presence of at least one known and documented preexisting clinical fragility fracture, in the past 3 years.
• •Patients may be included in substudy 2 if they meet any one of the following additional criteria - Patients who have sustained at least one new fragility fracture (vertebral or nonvertebral), despite prescription of antiresorptive therapy\* during the 12 months prior to the last new fracture or patients who, after a minimum of two years after initiating antiresorptive therapy\*, either have a lumbar spine, femoral neck, or total hip BMD of at least - 3SD below the average bone mass for young women (T-score -3 or less), or who show a decrease of at least 3.5% in BMD at any one of these sites.
• •\*Antiresorptive therapy includes all bisphosphonates, raloxifene, ERT/HRT, calcitonin, and vitamin D metabolites.