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Guselkumab vs fumaric acid esters for plaque psoriasis: Results from POLARIS trial
By Ella Dixon
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Results from the phase III POLARIS trial, comparing guselkumab (GUS) with fumaric acid esters (FAE) in systemic treatment-naïve patients with moderate-to-severe plaque psoriasis, have been published in British Journal of Dermatology by Thaci et al.1 The trial assessed long-term safety and efficacy of GUS, as well as the durability of responses after stopping GUS treatment.1
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| Key learnings: |
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At Week 32, 78% and 90% of patients treated with GUS achieved 75% improvement in Psoriasis Area and Severity Index (PASI 75) and PASI 90, compared with 12% and 24% of FAE-treated patients, respectively. |
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At Week 56, 91% of GUS-treated patients maintained PASI 90 response vs 50% of FAE-treated patients. PASI 90 response was also achieved by 80% of patients who switched from FAE to GUS at Week 32. |
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47% of GUS-GUS withdrawal patients and 25% of FAE-GUS withdrawal patients maintained a PASI score ≤5 at Week 100. |
| Incidence of adverse events and treatment discontinuation was lower in both the GUS and switched to GUS groups compared with the FAE group. |
| In this study, GUS demonstrated superior long-term efficacy and safety compared with FAE for systemic treatment-naïve patients, suggesting potential as a preferred first-line systemic therapy. |
- Thaçi D, Pinter A, Sebastian M, et al. Guselkumab demonstrates long-term efficacy and maintenance of treatment response postwithdrawal in systemic treatment-naïve patients and nonresponders to fumaric acid esters: results from parts II and III of a randomized active-comparator-controlled phase IIIb trial (POLARIS). Br J Dermatol. 2024;191:36-48. DOI: 10.1093/bjd/ljad523
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