FRI0291 SAFETY AND SURVIVAL OF SECUKINUMAB IN SPONDYLOARTHRITIS AND PSORIATIC ARTHRITIS: REAL-LIFE DATA. A MULTICENTER STUDY
Authors: I. Villa-Blanco, S. Alonso Castro, S. Fernández, J. L. Martín-Varillas, L. C. Charca Benavente, M. Pino Martínez, L. Riancho-Zarrabeitia, I. Morante Bolado, M. Santos Gómez, A. Brandy-Garcia, E. Aurrecoechea, L. Carmona, R. Queiró Silva
Journal: Annals of the Rheumatic Diseases (2020)

Background: Secukinumab is a human monoclonal antibody directed against IL-17A, approved for the treatment of psoriatic arthritis (PsA) and ankylosing spondylitis (AS). The safety profile of secukinumab was favourable in clinical studies, but there is still scarce evidence in clinical practice. Similarly, we currently have less data regarding the real survival of secukinumab compared to other biological therapies such as anti-TNF. Objectives: To analyze the retention rate and safety of secukinumab as well as the causes and factors associated with its survival in patients with ankylosing spondylitis and psoriatic arthritis in real clinical practice. Methods: we conducted a retrospective longitudinal observational multicenter study of all patients with PsA and Spondyloarthritis (SpA) who had received at least one dose of secukinumab. Adverse events and drug retention were considered the main variables. In addition, we collected variables predicting drug retention. We estimated the total adverse event rate, by severity and type of event, and drug retention (mean duration and retention at 6 months, 1 year and 2 years), all with 95% confidence intervals (95% CI). Survival was analyzed using Kaplan-Meier curves and predictive factors using Cox regression, with the Hazard Ratio (HR) as a measure of the association. Results: 154 patients were included, 59 with PsA (38%) and 95 with SpA (62%), with a mean age of disease onset of 49 years (SD ± 11), being 55% men. The mean disease duration was 6.5 years (ICR 2-8). The median number of previous biologics was 2 (SD ± 1). Secukinumab was the first line of treatment in 13 patients (8%), the second line in 46 (30%), the third line in 54 (35%) and subsequent lines in 41 (27%). The median survival of secukinumab was 23 months (ICR 5-32), with a 1-year retention rate of 66% and a 2-year retention rate of 43%. The most frequent cause of discontinuation was inefficacy (59%) and the second one was adverse events (AE) (36%). Most patients who discontinued due to AEs (71%) did so during the first 6 months of treatment. Only 2 major cardiovascular events were collected, and 2 cases of Crohn’s disease occurred during the exposure. The factors identified as predictors of survival for secukinumab were: duration of disease (HR 0.96, 95% CI 0.93-0.99 p=0.012), number of previous biologics (HR 1.18, 95% CI 1.04-1.34 p=0.011), male gender (HR 0.63, 95% CI 0.43-0.90 p=0.013), obesity (HR 0.31, 95% CI 0.18-0.54 p=0.000) and depression (HR 2.54, 95% CI 1.64-3.94 p=0.000). Conclusion: In this study of real clinical practice, secukinumab showed a 66% retention rate at one year in a population mostly refractory to biological therapy. The main cause of discontinuation was lack of efficacy. The AAs that led to drug discontinuation occurred mainly in the first 6 months of treatment Acknowledgments: Raquel Linge, Agnes Díaz and Juan Calatayud Disclosure of Interests: Ignacio Villa-Blanco Consultant of: UCB, Speakers bureau: Novartis, MSD, Lilly, Sara Alonso Castro: None declared, Sabela Fernández: None declared, José Luis Martín-Varillas Grant/research support from: AbbVie, Pfizer, Janssen and Celgene, Speakers bureau: Pfizer and Lilly, Lilian Consuelo Charca Benavente: None declared, Marina Pino Martínez: None declared, Leyre Riancho-Zarrabeitia Grant/research support from: Yes, Speakers bureau: Yes, Isla Morante Bolado: None declared, Montserrat Santos Gómez: None declared, Anahy Brandy-Garcia: None declared, Elena Aurrecoechea: None declared, Loreto Carmona Grant/research support from: Novartis Farmaceutica, SA, Pfizer, S.L.U., Merck Sharp &amp; Dohme España, S.A., Roche Farma, S.A, Sanofi Aventis, AbbVie Spain, S.L.U., and Laboratorios Gebro Pharma, SA (All trhough institution), Rubén Queiró Silva: None declared