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09-06-2020 | EULAR 2020 | Conference coverage | News

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Guselkumab benefits maintained over 1 year in patients with PsA

Author: Claire Barnard

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medwireNews: The 1-year results from the DISCOVER-1 and DISCOVER-2 trials point to prolonged benefits of the interleukin-23 inhibitor guselkumab in patients with psoriatic arthritis (PsA).

Previously reported primary results from the two phase 3 trials showed that treatment with guselkumab 100 mg every 4 or 8 weeks significantly improved joint and skin symptoms over 24 weeks, and after this timepoint placebo-treated patients in both trials were switched to the higher dose of guselkumab.

As shown in a poster presentation at the EULAR 2020 E-Congress, 1-year ACR20 response rates in DISCOVER-1 were 73.4% for the 128 patients treated with the higher dose of guselkumab, 59.8% for the 127 given the lower dose, and 56.3% for the 126 who switched from placebo to guselkumab. Christopher Ritchlin (University of Rochester Medical Center, New York, USA) and co-investigators said that “response rates or mean improvements continued to rise through 1 year” for most study outcomes.

Similarly, in DISCOVER-2, the 1-year ACR20 response rates were 70.6%, 74.6%, and 64.2% for patients in the higher dose (n=245), lower dose (n=248), and placebo-switching (n=246) groups, respectively. Iain McInnes (University of Glasgow, UK) and colleagues reported that the majority of endpoints improved over the study period.

Both trials reported a favorable safety profile of guselkumab over 1 year that was consistent with the known safety profile in psoriasis.

DISCOVER-1 included patients who were either biologic-naïve or had previously been treated with up to two tumor necrosis factor inhibitors, while DISCOVER-2 involved only biologic-naïve patients and included structural damage endpoints.

medwireNews is an independent medical news service provided by Springer Healthcare. © 2020 Springer Healthcare part of the Springer Nature Group

EULAR 2020 E-Congress; 3–6 June
Ann Rheum Dis 2020; doi:10.1136/annrheumdis-2020-eular.1240

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