Duvelisib for CLL/SLL and follicular non-Hodgkin lymphoma.

Chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) and follicular lymphoma (FL) represent indolent malignancies characterized by multiple episodes of relapse. Therapy has centered on agents that largely target the B-cell receptor pathway. Duvelisib is a second-generation oral inhibitor of phosphoinositide-3 kinase, downstream of the B-cell receptor pathway, approved in the United States for relapsed CLL/SLL and FL. Duvelisib represents a highly active agent, and ongoing investigations, including fixed-duration drug combinations and alternative dosing schedules, are aimed at reducing immune-mediated toxicities.