Effectiveness and safety of secukinumab for psoriasis in real-world practice: analysis of subgroups stratified by prior biologic failure or reimbursement

Tzong-Yun Ger, Yu-Huei Huang, Rosaline Chung-Yee Hui, Tsen-Fang Tsai, Hsien-Yi Chiu
Therapeutic Advances in Chronic Disease 2019, 10: 2040622319843756

Background: Little is known about the treatment outcomes of secukinumab in clinical practice, which differ from those in clinical trials. The effectiveness of biologics may differ in psoriasis patients with previous biologics exposure. The objective of this study was to investigate the real-world effectiveness and safety of secukinumab therapy and analyze subgroups stratified by reimbursement or prior biologic failure.

Methods: This retrospective multicenter study collected data from a cohort of 118 consecutive patients who received secukinumab treatment between December 2015 and March 2018. Effectiveness was evaluated by degree of improvement in the Psoriasis Area and Severity Index (PASI) scores. Adverse events and reasons for discontinuation were also recorded.

Results: The mean PASI improvement rate at weeks 4, 12, 24, and 36 was 63.5%, 77.7%, 78.7%, and 76.0%, respectively. Compared with reimbursed patients, nonreimbursed patients had a significantly lower baseline PASI and a shorter mean disease duration of psoriasis; they were more frequently biologic-naïve, had used less prior traditional antipsoriatic drugs and were more likely to be treated with secukinumab 150 mg. The effectiveness of secukinumab in nonreimbursed patients was superior despite higher discontinuation rates. Compared with patients without prior biologic failure, patients with prior biologic failure had a significantly lower mean PASI improvement at weeks 12, 24, 36, and 48. The decline in response rates to secukinumab tended to be more pronounced for patients who failed ustekinumab than tumor necrosis factor-α inhibitors. Moreover, the number of prior biologic failures was associated with a decreased response rate and increased likelihood of secondary loss of effectiveness of secukinumab therapy.

Conclusion: In a real-life clinical setting, the characteristics of nonreimbursed patients receiving secukinumab treatment differed from those of reimbursed patients. The PASI improvement for secukinumab was substantial but lower than that in clinical trials. The number and classes of prior biologic failures impact the treatment response to secukinumab.

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