Background: No currently approved treatment for pediatric plaque psoriasis selectively targets interleukin (IL)-23. In adults, guselkumab (a selective IL-23 inhibitor targeting the p19 subunit) demonstrated substantial efficacy with a favorable safety profile in treating moderate-to-severe plaque psoriasis.
Objective: PROTOSTAR (NCT03451851) evaluated the efficacy and safety of guselkumab in pediatric patients with moderate-to-severe plaque psoriasis.