The FDA has approved pirtobrutinib (Jaypirca, Eli Lilly) for adults with previously untreated chronic lymphocytic leukemia or small lymphocytic lymphoma with no known 17p deletion.
The Oct. 2 approval was based on BRUIN CLL-313, a trial involving 282 patients randomized 1:1 to receive pirtobrutinib or bendamustine plus a rituximab product for six cycles.
With an estimated median follow-up of 28 months, median progression-free survival was not estimable in the pirtobrutinib arm and was 33.5 months in the bendamustine and rituximab arm.
Serious adverse reactions occurred in 28% of patients taking pirtobrutinib. The most common nonlaboratory adverse reactions were upper respiratory tract infections (27%), rash (22%) and COVID-19 (21%). The recommended pirtobrutinib dose is 200 milligrams orally once daily until disease progression or unacceptable toxicity. The drug received orphan drug designation.
