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Risk of multiple sclerosis in patients with psoriasis receiving anti-IL-17 agents: A case-based review.

Sotirios G TsiogkasVaia TsimourtouKleoniki ChaidakiEfthimios DardiotisAngeliki Victoria Roussaki-SchulzeDimitrios Petros BogdanosEfterpi Zafiriou
Published in: The Journal of dermatology (2024)
Biologics approved for psoriasis exhibit favorable safety profiles, and serious adverse events have rarely been reported. In this report, we present the case of a patient treated with ixekizumab, an anti-interleukin (IL)-17 agent, who 8 months later developed multiple sclerosis (MS). We also review the available literature regarding the use of anti-IL-17 agents in the context of psoriasis and pre-existing or new-onset demyelination. Eight case reports were evaluated as relevant and are presented in our report. In most of the cases secukinumab or ixekizumab administration adequately controlled both skin and pre-existing neurological clinical manifestations. However, there has been a report of MS exacerbation under secukinumab treatment and the occurrence of myelitis in a patient receiving ixekizumab. While the anti-IL-17-biologic-mediated induction of inflammatory events in the central nervous system has not been proven and a causal relationship is lacking, such a probability should be considered in extremely rare cases.
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