At the 66th American Society of Hematology Annual Meeting, a plethora of companies presented clinical trial data highlighting their drugs targeting Bruton tyrosine kinase (BTK) in patients with blood cancers.
Eli Lilly and Co., through its Loxo@Lilly oncology unit, secured its second accelerated approval for non-covalent Bruton’s tyrosine kinase (BTK) inhibitor Jaypirca (pirtobrutinib), this time to treat adults with chronic lymphocytic leukemia or small lymphocytic lymphoma. The U.S. FDA approval of 100-mg and 50-mg tablets is for patients who have received two prior lines of therapy, including another BTK inhibitor and a BCL-2 inhibitor. It is based on phase I/II data from a subset of 108 patients participating in the open-label, single-arm, multi-cohort Bruin trial.
Despite congressional concerns about accelerated approval, the U.S. FDA’s use of the pathway is not slowing down. If anything, it’s picked up pace since Congress gave the agency stronger authority last year to monitor drugs approved based on a surrogate endpoint and to ensure that confirmatory trials are progressing in a timely way.
Mantle cell lymphoma (MCL) patients developing resistance to existing BTK inhibitors now have a new treatment option, with the U.S. FDA’s accelerated approval of Jaypirca (pirtobrutinib) from Eli Lilly and Co.’s oncology unit, Loxo@Lilly. It is indicated for use in adults with relapsed or refractory disease who have received at least two lines of systemic therapy, including a BTK inhibitor.
