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Effects of denosumab on bone mineral density and bone turnover in patients with rheumatoid arthritis receiving concurrent glucocorticoids or bisphosphonates.

Author(s): Dore RK, Cohen SB, Lane NE, Palmer W, Shergy W, Zhou L, Wang H, Tsuji W, Newmark R, Denosumab RA Study Group

Affiliation(s): Robin K Dore Inc, Tustin, CA, USA. rkdmail@sbcglobal.net

Publication date & source: 2010-05, Ann Rheum Dis., 69(5):872-5. Epub 2009 Sep 3.

Publication type: Clinical Trial, Phase II; Randomized Controlled Trial

OBJECTIVES: To report results of subgroup analyses of bone mineral density (BMD) and bone turnover markers from a randomised, double-blind, placebo-controlled, phase II study of denosumab, an investigational RANKL inhibitor, in patients with rheumatoid arthritis (RA) concurrently receiving treatment with bisphosphonates or glucocorticoids. METHODS: Patients received subcutaneous placebo (n=75), denosumab 60 mg (n=71) or denosumab 180 mg (n=72) at baseline and 6 months. Assessments included dual x-ray absorptiometry scans of the lumbar spine and hip, and determination of levels of serum type I C-telopeptide (sCTx-I) and serum procollagen 1N-terminal peptide (P1NP). RESULTS: Denosumab treatment increased mean lumbar spine and hip BMD and reduced sCTx-I and P1NP compared with placebo through 12 months, regardless of baseline BMD or marker levels or concomitant bisphosphonate or glucocorticoid use. CONCLUSIONS: This study extends evidence that denosumab increases BMD and reduces bone turnover in patients with RA and may provide a new therapeutic option for reducing systemic bone loss in patients with RA.

Page last updated: 2010-10-05

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