Matthew Matasar, MD, Memorial Sloan Kettering Cancer Center, New York City, NY, shares an update on the randomized Phase III CHRONOS-3 trial (NCT02367040) of copanlisib plus rituximab versus rituximab and placebo in patients with relapsed indolent non-Hodgkin lymphoma (iNHL). At a median follow-up of 19.2 months, copanlisib plus rituximab demonstrated superior efficacy compared to placebo plus rituximab in patients with relapsed iNHL, with a median progression-free survival (PFS) of 21.5 months versus 13.8 months. This interview took place at the virtual American Association for Cancer Research (AACR) Annual Meeting 2021.