Palsson et al. aimed to estimate the prevalence and predictors of ever achieving remission and sustained remission (SR) in PsA patients initiating b/tsDMARDs therapy in Sweden, using three different remission criteria (DAPSA28, DAS28CRP and EGA). Palsson et al. found that despite increased availability and a wider selection of b/tsDMARDs with different modes of action, a considerable proportion of PsA patients receiving such treatments never achieve remission and approximately half never achieve SR. Fewer swollen joints at baseline predicted a greater likelihood of SR according to all assessed remission definitions, while male sex predicted the likelihood of SR according to DAPSA28 and EGA.

Vermeire et al. provides data that supports the long-term efficacy and safety of obefazimod 50mg QD, with a substantial proportion of patients achieving clinical remission at Weeks 48 and 96. Vermeire et al. evaluated the 2-year outcome data of an OLM study, which assessed the long-term safety and efficacy of obefazimod 50mg QD.

Poddubnyy et al. identified no apparent increase in the risk of developing extramusculoskeletal manifestations (EMMs) in patients with PsA, r-axSpA, and nr-axSpA receiving 15mg UPA in the SELECT trials. Majority of patients did not report a history of EMMs at baseline, regardless of disease indication or study treatment.

April 2025

Mariette et al. investigated the long-term safety of filgotinib with regard to MACE, VTE and malignancy across RA and UC clinical trial populations. Rates of these events remained low overall, with some increases observed in patients aged 65 years and older.

Phase 2 study data show that zimlovisertib + tofacitinib was more effective than tofacitinib alone, in patients with moderate-to-severe RA and an inadequate response to MTX.

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

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.

Di Napoli et al. conducted a global pharmacovigilance analysis comparing MACE between JAKis and anti-TNFα therapies in patients with RA. JAKis were more frequently associated with reported MACE, particularly stroke, and had a shorter median time to onset than
anti-TNFα therapy.

March 2025

Prajapati et al. conducted the PROTOSTAR trial to assess guselkumab in paediatric patients with moderate-to-severe plaque psoriasis. Guselkumab significantly improved skin clearance versus placebo at Wk16, with high response rates sustained through Wk52 and a favourable safety profile.