The 2023 EULAR recommendations provided an updated consensus on the pharmacological management of PsA with a new overarching principle and recommendation for 2023. Recent MOA safety data emphasised the importance of patient-specific benefit-risk profiling in JAKi therapy, and extra-musculoskeletal (MSK) manifestations related to PsA should be considered during drug selection.

The results of the meta-analysis show that TNFi, IL-17i, and JAK inhibitor treatments significantly improved sacroiliac joint SPARCC scores in patients with axSpA or AS at Weeks 12–16. However, there were no significant differences in mean improvement between the treatment groups.

March 2024

This study by Cho, et al. did not find any significant differences in remission rates in South Korean patients with RA that were treated with tofacitinib versus TNFi in a real-world setting. Remission rates were significantly higher for patients naïve to both JAKi and bDMARDs treated with tofacitinib versus TNFi.

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February 2024

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.

This real-world study by Kim, et al. found no significant relationship between continued JAK inhibitor therapy in patients with IMIDs and the risk of subsequent recurrent HZ reactivation. They also found no significant difference in the number of days patients were treated for HZ in the JAK inhibitor continuation and discontinuation groups.

Tofacitinib treatment resulted in a significant simultaneous improvement of both metabolic and inflammatory parameters in RA patients with T2D. Due to increasing evidence for a link between RA, insulin resistance and T2D Di Muzio et al. investigated if consecutively recruited RA patients on tofacitinib therapy showed improvement in HOMA2-IR values over 6 months.

January 2024

Cardiovascular Safety of Janus Kinase Inhibitor Therapy in a Multi-ethnic Population

Musculoskeletal Care 2023 doi 10.1002/msc.1853 Epub ahead of print

This study by Sunmboye, et al. investigated the relationship between CV event incidence and age in a multi-ethnic population that received JAK inhibitor therapy. They concluded that JAK inhibitor therapy was generally safe in a multi-ethnic population with a large age range, but they did find a statistically significant but numerically small positive correlation between age and CV incidence

This post hoc analysis by Curtis, et al. found that current and former smokers were more likely to switch from an anti-TNF bDMARD to a different bDMARD or JAK inhibitor in comparison to non-smokers. They also found that DAS28(CRP) ≤3.2 achievement was significantly higher after filgotinib therapy regardless of smoking status in MTX-IR, bDMARD-IR, and MTX-naïve patients.

In this two-round modified RAM study by Solitano, et al., the authors found that experts preferred to assess JAK inhibitor risk on a case-by-case basis across all specialties. Uncertainty remained on several clinical scenarios regarding the appropriate use of JAK inhibitors, however they remain an important therapy option for the treatment of IMIDs  and were deemed appropriate for patients with moderate risk profiles.

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Nationwide study involving 14 778 new users of targeted therapies with PsA found treatment persistence to be lower for women than men for TNFi and IL17i but not for IL-12/23i, IL-23i or JAK inhibition.