Abstract

We aimed to investigate the efficacy of denosumab for rheumatoid arthritis (RA). This study enrolled 70 RA patients who received denosumab 60mg subcutaneous injection at baseline and at 6months. Bone mineral densities (BMD) of the lumbar spine, total hip, femoral neck, and hand were measured by dual energy X-ray absorptiometry. Changes in total modified Sharp score (mTSS), erosion (EN) score, and joint space narrowing score at baseline from 12months before and at 12months from baseline. The mean values of BMD of the lumbar spine, total hip, femoral neck, and hand significantly increased by 7.3, 4.7, 3.9, and 5.4%, respectively, at 12months. At 12months from baseline, there were significant decreases in the values of mTSS (1.13 vs. 0.59; p=0.002) and EN score (0.40 vs. 0.07; p<0.001), compared with the values at baseline from 12months before. The existing combined modality therapy with denosumab might be effective for osteoporosis and joint destruction in patients with RA.

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