Efficacy and safety of tildrakizumab for the treatment of moderate-to-severe plaque psoriasis of the scalp: Week 52 results from a phase 3b, randomized, double-blind, placebo-controlled trial.

Abstract

In the primary analysis of a phase 3b, randomized, double-blind, placebo-controlled study in patients with moderate-to-severe plaque psoriasis affecting the scalp (NCT03897088), tildrakizumab, an anti-interleukin-23 p19 antibody, met the primary efficacy endpoint at week 16. To evaluate maintenance of tildrakizumab efficacy and safety for the treatment of scalp psoriasis from the week 52 full analysis. Patients randomized to tildrakizumab continued receiving tildrakizumab 100 mg every 12 weeks; patients randomized to placebo (analyzed separately) switched to tildrakizumab 100 mg at week 16. Efficacy endpoints included Investigator Global Assessment modified 2011 (scalp) score of 0 or 1 with ≥2-grade improvement and ≥90% improvement in Psoriasis Scalp Severity Index score from baseline. Safety was assessed from adverse events. In patients originally randomized to tildrakizumab versus placebo, Investigator Global Assessment modified 2011 (scalp) and ≥90% improvement in Psoriasis Scalp Severity Index score response rates, respectively, improved from 49.4% versus 7.3% and 60.7% versus 4.9% at week 16 to 62.9% versus 56.1% and 65.2% versus 57.3% at week 52; >80% of week 16 responders to tildrakizumab maintained response. No treatment-related serious adverse events occurred. Results were obtained under controlled clinical conditions. Efficacy and safety of tildrakizumab for the treatment of scalp psoriasis are sustained long-term.