Introduction: Secukinumab (SEC) has been shown to be highly effective and safe in the treatment of moderate to severe plaque psoriasis (PsO), but data on SEC's long-term drug survival are limited.
Aim: To analyse the survival rate of SEC and its predictive factors of survival, together with the drug safety and efficacy.
Material and methods: Data of 268 patients who received SEC between May 2018 and April 2022 with moderate to severe psoriasis and/or psoriatic arthritis were analysed retrospectively. Psoriasis Area Severity Index (PASI) was used to define effectiveness. Drug survival was examined using the Kaplan-Meier analysis and Cox regression analysis was used to analyse predictive factors.
Results: PASI 75/90/100 responses achieved at week 16 (89.5%, 78%, and 16.2%, respectively) were well maintained at week 52 (96.3%, 90.7%, and 15.4%, respectively). The drug survival probability rates for SEC were 94.4% at 12 months, 88.4% at 24 months, 78.6% after 3 years, 52.7% after 4 years. Concomitant treatments, dose escalation and family history of psoriasis were associated with a higher risk for SEC withdrawal.
Conclusions: Close monitoring may improve SEC survival in psoriasis patients who require dose escalation and concomitant drugs.
Keywords: biologics; daily clinical practice; drug survival; psoriasis; secukinumab.
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