Drug survival, effectiveness and safety of ixekizumab for moderate-to-severe psoriasis up to 5 years
JOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY AND VENEREOLOGY(2024)
摘要
IntroductionIxekizumab proved to be effective and safe for psoriasis treatment in several randomized clinical trials and real-life studies. Nevertheless, long-term real-world experiences are still lacking, with little data up to 4 years of treatment.ObjectivesTo analyse survival, effectiveness and safety of ixekizumab in a real-life cohort of patients affected by moderate-to-severe psoriasis or psoriatic arthritis up to 260 weeks (5 years).MethodsWe included all patients treated with ixekizumab from December 2017 to March 2021. Drug survival (DS) was analysed in patients at risk for up to 5 years. Cox analysis was adopted to evaluate possible predictive factors of discontinuation. Psoriasis Area Severity Index (meanPASI and PASI100, 90, and <= 3) was used as outcomes of effectiveness on observed patients at 16, 52, 104, 156, 208 and 260 weeks. Logistic regression was performed to identify possible predictive factors of response.ResultsDS was 65.5% at 260 weeks, with being a super-responder patient (achievement of PASI100 at 16 weeks and maintained at 28 weeks) correlated with less risk of discontinuation. PASI100, 90 and <= 3 was achieved by 54.1%, 60.5% and 73% of observed patients, respectively, at 16 weeks, and by 59.1%, 81.8% and 95.5%, respectively, at 260 weeks. High mean BMI was the only factor strongly associated with less achievement of the outcomes at the earlier time points: PASI100 at 16 weeks (OR 0.93, CI 0.87-0.98, p = 0.014) and at 104 weeks (OR 0.91, CI 0.84-0.98, p = 0.019), PASI90 achievement at 16 weeks (OR 0.94, CI 0.88-0.99, p = 0.028) and 104 weeks (OR 0.91, CI 0.83-0.99, p = 0.027), and PASI <= 3 (OR 0.86, CI 0.76-0.97, p = 0.018) at 104 weeks. No severe adverse events were observed.ConclusionsIxekizumab showed high effectiveness and safety for up to 5 years, with survival of 2/3 of treated patients. Rapid response to treatment is predictive of long-term response.
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