Objectives: To prospectively study real-world efficacy and safety of secukinumab in psoriatic arthritis (PsA) patients from the Israeli registry of inflammatory diseases.
Methods: PsA patients fulfilling the CASPAR criteria were included in the analysis from 2010 to 2019. The primary endpoint was secukinumab drug retention compared to other TNF-α inhibitors (TNFi). Bivariate and multivariate analyses were made by Cox regression analysis. Drug retention according to treatment line was examined with Kaplan-Meier curves.
Results: Included were 404 PsA patients who had 709 treatment courses during the study period. Ninety patients had been treated with secukinumab (22%). The secukinumab-treated patients were significantly older and their disease duration was longer. Secukinumab was less likely to be the first line of treatment compared to TNFi. Secukinumab had a drug retention comparable to TNFi, and a better drug retention than TNFi among biologic-experienced patients. Neither methotrexate combination nor body mass index affected the inefficacy event rate. Secukinumab had a similar rate of adverse events as TNFi.
Conclusions: This multicentre real-world study demonstrated that secukinumab had a drug retention comparable to TNFi. Secukinumab had a better drug retention than TNFi among biologic-experienced patients. IL-17 inhibition is an effective mechanism of action to treat PsA in real life.
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