This is a Phase 3 global, randomized, open-label study comparing LOXO-305 (Arm A) to investigator's choice of either idelalisib plus rituximab or bendamustine plus rituximab (Arm B) in CLL/SLL patients who have been treated with at least a covalent BTK inhibitor (BTKi). Patients may have discontinued the prior covalent BTKi due to disease progression (PD) or intolerance. Patients who have received venetoclax are eligible for the study. Eligible patients will be randomized in 1:1 to Arm A and Arm B.
This is a study for patients with chronic lymphocytic leukemia (CLL) or small lymphocytic leukemia (SLL) who have previously received treatment with at least a BTK inhibitor. The main purpose is to compare LOXO-305 to idelalisib plus rituximab or bendamustine plus rituximab. Participation could last up to four years, and possibly longer, if the disease does not progress.