BeiGene receives positive CHMP opinion for Brukinsa for the treatment of adults with Waldenström’s macroglobulinemia.

“Bruton’s tyrosine kinase (BTK) inhibitors have emerged as a promising treatment for WM, yet treatment discontinuation due to lack of response or side effects remains a concern,” said Prof. Christian Buske, Medical Director at the University Hospital Ulm, Germany, and a trial investigator of the ASPEN study. “The ASPEN trial demonstrated that Brukinsa provided deep and durable responses and offered substantial improvements in safety and tolerability over standard therapy. Patients in Europe with WM may soon have a new treatment option that can offer improved outcomes.”

The positive CHMP opinion is based on results from the randomized, Phase III ASPEN clinical trial, evaluating Brukinsa compared to ibrutinib in patients with relapsed or refractory (R/R) or treatment-naïve (TN) WM who are unsuitable for chemo-immunotherapy. Based on the modified Sixth International Workshop on Waldenström’s Macroglobulinemia (IWWM-6) response criteria (Treon 2015), the combined complete response (CR) +VGPR rate in the overall intention-to-treat (ITT) population was 28.4% with BrukinsaA (95% CI: 20, 38), compared to 19.2% with ibrutinib (95% CI: 12, 28). While this difference was not statistically significant, Brukinsa did achieve numerically higher VGPR rates and trends towards increased response quality.