Bristol Myers Squibb Announces TRANSCEND CLL 004 Trial of Breyanzi® (lisocabtagene maraleucel) Met Primary Endpoint of Complete Response Rate in Patients with Relapsed or Refractory Chronic Lymphocytic Leukemia

Bristol Myers Squibb (NYSE: BMY) today announced topline results from TRANSCEND CLL 004, a Phase 1/2, open-label, single-arm, multicenter study evaluating Breyanzi (lisocabtagene maraleucel) in adults with relapsed or refractory (R/R) chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). Results from TRANSCEND CLL 004 showed the study met the primary endpoint of complete response rate compared to historical controlin the prespecified subset of patients with R/R CLL that was refractory to a BTK inhibitor and pretreated with a BCL-2 inhibitor. No new safety signals were reported for Breyanzi in this study.

CLL is an incurable disease with complex biology and immune dysregulation that has made the development of T cell-based therapies that provide deep remission very challenging, said Anne Kerber, senior vice president, head of Cell Therapy Development, Bristol Myers Squibb. In a population that has limited options, the TRANSCEND CLL 004 study represents the first multicenter trial evaluating a CAR T cell therapy in heavily pre-treated patients with relapsed or refractory CLL or SLL, with results showing the potential of Breyanzi as a personalized one-time treatment approach for patients with this difficult-to-treat disease.

Bristol Myers Squibb will complete a full evaluation of the TRANSCEND CLL 004 data and work with investigators to present detailed results at an upcoming medical meeting, as well as discuss these results with health authorities. Bristol Myers Squibb thanks the patients and investigators who are participating in the TRANSCEND CLL 004 clinical trial.