Dose reduction is a feasible strategy in patients with plaque psoriasis who achieve sustained response with secukinumab: a retrospective, multicenter cohort study in daily practice setting

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Abstract
Background: Biological therapy dose modification is a common practice in the long‐term treatment of plaque psoriasis.Objective: The objective of the study was to determine prevalence, characteristics of patients, effectiveness, treatment survival of secukinumab dose reduction (SEC‐DR) strategy and assess its safety and cost implications.Methods: A retrospective, observational, multicenter cohort study was conducted in patients with plaque psoriasis treated with secukinumab and up to 2 years of follow‐up.Results: In 63/347 patients with an initial standard dose regimen, SEC‐DR was tried at any moment in 18.2% of them after sustained response. In 51 patients, the interval between administrations was increased while in 12 patients, monthly dose was reduced to 150 mg. Successful SEC‐DR was achieved in 77.8% of the patients, with sustained PASI response to the end of the study. Survival of secukinumab treatment and safety profile were not compromised by DR. The use of DR saved 33% of the cost, including failures in which standard treatment was resumed.Limitations: The proper of the study designed and the arbitrary definition of “DR success.”Conclusion: Off‐label SEC‐DR strategy was used in patients with sustained response to standard dose regimen; this strategy showed long‐term efficacy without compromising treatment survival or worsening the safety profile while also being cost saving.

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