UCB announced positive top-line results from the Phase 3 BE COMPLETE study, which evaluated the efficacy and safety of bimekizumab in the treatment of adults with active psoriatic arthritis, who were inadequate responders or intolerant to anti-tumor necrosis factor-alpha (anti-TNF-a) therapy. BE COMPLETE met its primary endpoint, demonstrating that significantly more patients treated with bimekizumab achieved 50% or greater improvement in signs and symptoms of disease from baseline, compared with placebo, as measured by the American College of Rheumatology (ACR) 50 response at week 16. The study also met all ranked secondary endpoints.

Bimekizumab showed significant improvements over placebo at week 16 in physical function, as measured by Health Assessment Questionnaire-Disability Index (HAQ-DI); skin clearance, as measured by at least a 90% improvement in the Psoriasis Area and Severity Index (PASI90); physical health status, as measured by the Short Form 36-item Health Survey (SF-36) Physical Component Summary (PCS) score; and low disease activity, as measured by the Minimal Disease Activity (MDA) index. In BE COMPLETE, the safety profile of bimekizumab was consistent with safety data seen in previous studies with no new observed safety signals. The safety and efficacy of bimekizumab in psoriatic arthritis have not been established, and it is not approved for use in psoriatic arthritis by any regulatory authority worldwide.

Full results from the BE COMPLETE study will be presented at upcoming medical conferences and published in a peer-reviewed medical journal. The top-line results from the BE COMPLETE study build on the positive top-line interim analysis results from the Phase 3 BE OPTIMAL study in adults with active psoriatic arthritis, who were biologic disease-modifying anti-rheumatic drug (bDMARD) naïve, reported in November 2021. Based on these results, UCB plans to submit regulatory applications for bimekizumab in psoriatic arthritis in the United States and the European Union in Third Quarter 2022.