The purpose of this Phase III study is to evaluate the efficacy and safety of oral salmon calcitonin in the treatment of patients with osteoporosis

Inclusion Criteria:

• Postmenopausal women with osteoporosis, ambulatory, in general good health, not receiving medication that affects bone metabolism, and free from any underlying condition, other than osteoporosis, that may result in abnormal bone metabolism.

Exclusion Criteria:

• BMD T-score below -4.0 (based on absolute values g/cm2 as given in the protocol) at one or more of the measured sites
• More than 2 prevalent vertebral fractures (Genant et al, 15).
• If BMD is lower than -2.5 T-score at one or more of the measured sites, the participants will be excluded from the study, if they have a severe vertebral fracture (Genant et al, 15).
• Evidence of any clinical osteoporotic fracture and/or if they have a history of a clinical osteoporotic fracture (excluding wrist fractures)
• BMD T-score > -1.5 in all of the following regions: Lumbar spine, femoral neck or total hip.

Other protocol defined inclusion/exclusion criteria may apply