Secukinumab retreatment associated psoriasis flare with pustules.

This case report describes a patient with plaque psoriasis and psoriatic arthritis who experienced IL-17A blocking antibody secukinumab treatment-interruption followed by re-treatment. The patient showed heterogeneous responses; significant improvement at initial introduction of secukinumab with rapid deterioration after discontinuation, followed by worsening symptoms and pustular eruption with reintroduction, and skin clearance after dose escalation.