Key clinical point: Janus kinase inhibitors (JAKi) were more potent in inhibiting bone mineral density (BMD) loss compared with other targeted therapies in patients with rheumatoid arthritis (RA), specifically in those with anti-cyclic citrullinated peptide antibody (ACPA)-positive RA.
Major finding: JAKi therapy led to greater gains in bilateral femoral BMD than conventional synthetic disease-modifying antirheumatic drugs (csDMARD; P < .05), tumor necrosis factor inhibitors (TNFi), and non-TNFi biologics, with the improvements in femoral BMD being significant in patients with ACPA-positive RA (P < .01) but not in those with ACPA-negative RA. Similar trends were observed for BMD values at the lumbar spine.
Study details: This retrospective observational study included 362 patients with RA who were treated with JAKi, csDMARD, TNFi, and non-TNFi biologics.
Disclosures: This study was supported by the National Science and Technology Council, Taiwan, and other sources. The authors declared no conflicts of interest.
Source: Chen YW et al. Potential alleviation of bone mineral density loss with Janus kinase inhibitors in rheumatoid arthritis. Clin Rheumatol. 2023 (Sep 2). doi: 10.1007/s10067-023-06735-0