Marzo-Ortega et al. report that dactylitis and enthesitis are associated with a greater disease burden and worse prognosis, highlighting the importance for physicians to identify these conditions and provide adequate treatment. Authors evaluated guselkumab’s efficacy on dactylitis resolution (DR) and enthesitis resolution (ER), and their impact on subsequent disease control, in patients with active PsA and prior inadequate response to tumour necrosis factor inhibitors (TNFi-IR).

September 2025

Treatment with risankizumab provides durable improvement in the signs and symptoms of PsA across all the GRAPPA disease domains and related conditions. This post hoc analysis by Coates et al. aimed to assess the efficacy of long-term treatment with risankizumab across the updated GRAPPA domains and key related conditions of PsA.

July 2024

Ritchlin et al. conducted a post hoc analysis of the DISCOVER-2 trial, evaluating the efficacy of guselkumab in biologic-naïve patients with PsA. Guselkumab provided durable disease control across key PsA domains and PROs over 2 years, regardless of baseline characteristics. A significant proportion of patients achieved stringent endpoints such as ACR50/70, complete skin clearance, and resolution of dactylitis/enthesitis.

June 2024

Kwatra et al. found that risankizumab significantly improves clinical signs and symptoms of enthesitis and/or dactylitis in PsA patients, with substantial and sustained efficacy observed up to 52 weeks. Furthermore, these improvements were met by meaningful gains in patient reported outcomes.

April 2024

Significant improvements in overall disease activity, enthesitis and dactylitis, and skin psoriasis were observed by Week 8 and maintained or improved through Week 100 in both guselkumab treatment groups. Coates et al conducted a post-hoc analysis of the Phase 3 DISCOVER-2 trial to investigate the long-term (100-week) efficacy of guselkumab across GRAPPA-identified PsA domains.

December 2023

Psoriatic arthritis clusters, obtained by machine learning (ML) analysis of pooled data from the FUTURE, MEASURE, and MAXIMISE trials, indicate phenotypical heterogeneity of patients with PsA and axial manifestations and overlapping features across the spondyloarthritis spectrum. Here, Baraliakos, et al. sort to identify distinct clinical clusters, based on patient demographics and baseline clinical indicators, from the secukinumab clinical development programme.

April 2023

Post hoc analysis of guselkumab, Phase 3 DISCOVER-1 and -2 studies finds that 75% of guselkumab-randomised patients have complete resolution of dactylitis through one year.

The presence of dactylitis was associated with a higher disease burden in patients with PsA compared with those without dactylitis at baseline. The aim of this study was to evaluate the efficacy of secukinumab in patients with dactylitis at baseline over 2 years.

November 2017

The study data presented that tofacitinib (TOF) improves efficacy response rates in patients with severe psoriatic arthritis (PsA) who have an inadequate response to TNF inhibitors.The Phase 3 Oral Psoriatic Arthritis Trial (OPAL) Beyond study evaluated patients with active PsA who had inadequate responses to more than one TNFi. Patients were randomised 2:2:1:1 to 5 mg TOF BID or 10 mg TOF BID for 6 months; or PBO, with a switch to 5 mg TOF BID or to 10 mg BID at 3 months.Primary endpoints were ...

May 2016

Encouraging results have been seen with clazakizumab in RA, but the results of anti-IL6 therapy in patients with psoriatic arthritis (PsA) have so far been unclear. This Phase 2b dose-ranging study examined the efficacy and safety of clazakizumab given subcutaneously q4w, with or without MTX, in 165 patients with PsA who had inadequate response to NSAIDs.ACR20 response at Week 16, the primary endpoint, was significantly higher in patients receiving clazakizumab 100 mg compared with placebo (52.4...