Pharmaceutical Eli Lilly today announced positive top-line results from the Phase III BRUIN CLL-314 clinical trial of Jaypirca (pirtobrutinib), a non-covalent (reversible) Bruton's tyrosine kinase (BTK) inhibitor, versus Imbruvica (ibrutinib), a covalent BTK inhibitor, in patients with chronic lymphocytic leukemia or small lymphocytic lymphoma (CLL/SLL). 29 July 2025