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Osteoporosis is a skeletal disorder characterised by compromised bone strength predisposing a person to an increased risk of fracture. Osteoporosis develops through an imbalance between bone resorption by osteoclasts and bone formation by osteoblasts resulting in increased bone loss. Numerous agents used for the prevention and treatment of osteoporosis slow bone loss by decreasing both bone resorption and formation. These include bisphosphonates, hormone replacement therapy, selective oestrogen receptor modulators and calcitonins. All reduce vertebral fracture risk and some reduce non-vertebral fracture risk, but none routinely increases bone mass and strength or restores lost bone architecture. In many respects, antiresorptive therapies halt the progression of osteoporosis. However, for patients who have osteoporosis, particularly those who have sustained their first fracture and are at high risk for subsequent fractures, there is a need to develop agents that stimulate bone formation and, thus, reverse osteoporosis. Teriparatide is the recombinant human 1-34 amino acid sequence of parathyroid hormone recently approved in the US for the treatment of men and postmenopausal women at high risk for osteoporotic fracture and in Europe for the treatment of postmenopausal women with osteoporosis. When given by once-daily injection, teriparatide increases bone mass by stimulating formation of new bone, resulting in the restoration of bone architecture.

Type

Journal article

Journal

International journal of clinical practice

Publication Date

10/2003

Volume

57

Pages

710 - 718

Addresses

Department of Diabetes, The University of Melbourne, Royal Melbourne Hospital, Australia.

Keywords

Humans, Osteoporosis, Teriparatide, Treatment Outcome, Risk Factors, Bone Density, Female, Male, Fractures, Bone