Mease et al. found that bimekizumab demonstrated a favourable long-term safety profile in patients with axSpA and PsA.

Kaya et al. reported that switching to secukinumab or cycling to another TNFi after first TNFi failure in axSpA led to comparable drug survival, with predictive factors differing by treatment. The study reports that smoking and Achilles enthesitis were associated with higher SEC discontinuation, while high CRP and primary TNFi failure predicted TNFi discontinuation.

The concept of difficult-to-treat disease in rheumatology: where next?

Lancet Rheumatol. 2025;7:e274–89 doi: 10.1016/S2665-9913(24)00340-0

Nagy et al. propose a unifying and holistic framework for understanding and addressing the concept of difficult-to-treat (D2T) disease across rheumatology, integrating cross-disciplinary evidence and recommending its incorporation into future disease management strategies. The D2T state requires a comprehensive, holistic, multidisciplinary approach that considers the specific characteristics of each disease and the personalised needs of the patient.

March 2025

Floris et al. conducted a monocentric cohort study to assess the impact of biologic treatment on the development of PsA in patients with PsO. Treatment with biologics significantly reduced the likelihood of PsA development, with lower prevalence observed across different biologic classes and patterns of joint involvement.

Burden and determinants of multi-b/tsDMARD failure in psoriatic arthritis

Arthritis Research & Therapy 2025;27:46 doi: 10.1186/s13075-025-03518-7

Haberman et al. analysed prescribing patterns and characteristics of PsA patients with
multi-b/tsDMARD failure, defined as requiring ≥4 b/tsDMARDs. Among 960 patients at the NYU Psoriatic Arthritis Centre, 17% met this criterion. These patients were more likely to be female, obese, and have higher rates of axial involvement and depression. They also exhibited greater disease activity, suggesting that both inflammatory and non-inflammatory factors contribute to multiple treatment failures.

February 2025

IL23is are associated with a lower risk of PsA incidence compared to IL17is in PsO patients, particularly in specific age, sex, and ethnic groups according to the latest real-world research from Yu S, et al.

Zhao et al. found that among patients with PsA or axSpA, JAKi were not associated with increased risk of CVD or common cancers compared to TNFi or IL-17i.

Gladman et al. assessed the impact of bimekizumab over 1 year on patient-reported symptoms, HRQoL, and work productivity in patients with PsA who were bDMARD-naïve or TNF-IR. The study showed that bimekizumab treatment resulted in sustained improvements across multiple domains, including pain, fatigue, physical function, and work impairment.

January 2025

Zavoriti and Miossec explored the impact of tofacitinib on inflammation and coagulation in RA. Tofacitinib reduced synovial and vascular inflammation by inhibiting IFNɣ, IL-17A, and IL-6 production but failed to prevent the prothrombotic effects of inflammatory cytokines on endothelial cells. These findings suggest that while tofacitinib reduces inflammation, it does not mitigate associated thrombotic risk.

Baraliakos et al. evaluated the long-term safety and efficacy of bimekizumab in axSpA through a 2-year analysis of the BE MOBILE 1 and BE MOBILE 2 studies. Bimekizumab was well tolerated, with a consistent safety profile and no new safety signals. Clinical improvements, including ASAS40 response and MRI remission, were sustained through Wk104.