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A review of denosumab for the treatment of osteoporosis

Authors Miyazaki T, Tokimura F, Tanaka S

Received 1 February 2014

Accepted for publication 6 March 2014

Published 8 April 2014 Volume 2014:8 Pages 463—471

DOI https://doi.org/10.2147/PPA.S46192

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 5

Tsuyoshi Miyazaki,1,2 Fumiaki Tokimura,1 Sakae Tanaka3

1Department of Orthopedic Surgery, 2Department of Geriatric Medicine, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi-ku, Tokyo, Japan; 3Department of Orthopedic Surgery, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Tokyo, Japan

Abstract: Osteoporosis is an age-related systemic skeletal disease characterized by low bone mass and microarchitectural deterioration of bone tissue, with a consequent increase in bone fragility. Bone remodeling involves two types of cells: osteoblasts and osteoclasts. Receptor activator of nuclear factor-κB ligand (RANKL) is a key regulator of the formation and function of bone-resorbing osteoclasts, and its cell surface receptor, receptor activator of nuclear factor-κB (RANK), is expressed by both osteoclast precursors and mature osteoclasts. Denosumab is a fully human monoclonal anti-RANKL antibody that inhibits the binding of RANKL to RANK, thereby decreasing osteoclastogenesis and bone-resorbing activity of mature osteoclasts. Although there are many medications available for the treatment of osteoporosis, inhibition of RANKL by denosumab has been shown to significantly affect bone metabolism. Denosumab appears to be a promising, highly effective, and safe parenteral therapy with good adherence for osteoporosis. Moreover, denosumab may be cost-effective therapy compared with existing alternatives. Therefore, in this review, we focus on studies of denosumab and the risks and benefits identified for this type of treatment for osteoporosis.

Keywords: bone resorption, OPG, osteoclast, RANKL

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