Efficacy and safety of JAK inhibitors in rheumatoid arthritis: update for the practising clinician

Nat Rev Rheumatol 2024;20(2):101–115 DOI: 10.1038/s41584-023-01062-9

The observed benefit:risk ratio strongly favours JAKi use in the majority of patients, and HCPs should consider and adhere to guidance on high-risk patients where applicable. Szekanecz et al summarised the safety and efficacy of approved JAKis tofacitinib, baricitinib, upadacitinib, and filgotinib to aid in clinical decision making.

October 2023

Baraliakos, et al. present data from two Phase 3 studies, BE MOBILE 1 and BE MOBILE 2, that investigated the clinical efficacy and safety of bimekizumab in axSpA patients. They found that bimekizumab had sustained and consistent efficacy in patients with nr-axSpA and r-axSpA.

July 2023

This review by Taylor, et al. reviews the long-term safety and efficacy data for baricitinib. Results from several studies showed that baricitinib has greater efficacy and survival compared to TNF inhibitors, and that the rate of CDAI <10 for baricitinib-treated RA patients increased over the course of seven years. Data also showed that remission rates were higher in real-world evidence than in RCTs.

February 2023

Herpes zoster in Patients with Inflammatory Arthritides or Ulcerative Colitis Treated with Tofacitinib, Baricitinib or Upadacitinib: A Systematic Review of Clinical Trials and Real-world Studies

Overall, this evidence supports that HZ-risk is a “class” effect of JAKi, observing a higher risk compared to other non-biologic/biologic drugs . This study aimed to systematically review the incidence of HZ among RA, PsA, AS and UC patients treated with TOFA, BARI or UPA.

Overall, this evidence supports that HZ-risk is a “class” effect of JAKi, observing a higher risk compared to other non-biologic/biologic drugs . This study aimed to systematically review the incidence of HZ among RA, PsA, AS and UC patients treated with TOFA, BARI or UPA.

January 2023

This post-hoc analysis of 31 clinical trials in ulcerative colitis, rheumatoid arthritis and psoriatic arthritis concludes that combined influenza adverse event incidence rates were highest in ulcerative colitis, while in each indication they were generally similar across tofacitinib, placebo, and comparator groups.

December 2022

Salinas, et al. evaluate baricitinib safety with respect to VTE, MACE, and serious infection relative to TNFi in patients with RA, in routine care and observe an increased risk of VTE in patients taking baricitinib, compared to TNFi.

November 2022

In this investigation it was concluded that other biologics and apremilast were associated with a 1.4- to 3-times higher risk of hospitalisation for serious infections in PsO/PsA patients when compared to ustekinumab. These findings should be considered in the safety profile of these therapies when selecting appropriate treatment regimens in patients with PsO/PsA.

This is the largest meta-analysis to date, assessing the risk of OIs (Opportunistic infection) in patients with PsA. In coming to this conclusion, a systematic review and meta-analysis was undertaken to estimate the incidence of OIs following treatment with b- and tsDMARDs.

September 2022

Post hoc analysis, using the final dataset from ORAL Surveillance, reveals a higher risk of non-serious infections and herpes zoster with tofacitinib vs TNFi, and higher risk of serious infection events with tofacitinib 10 mg BID versus TNFi, particularly in patients aged ≥65 years.