April 2023

Multidomain Efficacy and Safety of Guselkumab Through 1 Year in Patients with Active Psoriatic Arthritis with and Without Prior Tumor Necrosis Factor Inhibitor Experience: Analysis of the Phase 3, Randomized, Placebo-Controlled DISCOVER-1 Study

ACR Open Rheumatol. 2023 doi: 10.1002/acr2.11523

TNF inhibitors (TNFi) are one main mode of therapy in patients with PsA who fail to respond to csDMARDs. However, they have a primary treatment failure rate of 40% and only a modest target of ≥20% ACR20 response. The objective of this study was to evaluate efficacy and safety of guselkumab, interleukin-23 inhibitor in the DISCOVER-1 study with active PsA patients by prior use of TNFi.

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March 2023

Low Rates of Radiographic Progression Associated with Clinical Efficacy Following up to 2 Years of Treatment with Guselkumab: Results From a Phase 3, Randomised, Double-blind, Placebo-controlled Study of Biologic-naïve Patients with Active Psoriatic Arthritis

RMD Open. 2023 doi: 10.1136/rmdopen-2022-002789

Data from this paper provides a robust analysis of radiographic progression through 2 years in a phase 3 study of guselkumab in patients with PsA. This study sought to evaluate the relationship between radiographic progression and clinical outcomes in post hoc analyses of patients with PsA receiving up to 2 years of guselkumab therapy in DISCOVER-2.

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February 2023

The Effect of Guselkumab on Inhibiting Radiographic Progression in Patients with Active Psoriatic Arthritis: Study Protocol for APEX, a Phase 3b, Multicenter, Randomized, Double‑blind, Placebo‑controlled Trial

Trials. 2023 doi: 10.1186/s13063-022-06945-y

Guselkumab was approved for treating the signs and symptoms of active PsA following two Phase 3 global studies, DISCOVER-1 and DISCOVER-2. The Phase 3b APEX study has been designed to address the limitations of DISCOVER-2 and further assess the effects of guselkumab Q4W and Q8W on PsA outcomes.

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