Tyler Van Buren's questions to Allogene Therapeutics (ALLO) leadership • Q2 2025
Question
Tyler Van Buren of TD Cowen asked about the benchmark for success regarding the Minimal Residual Disease (MRD) conversion rates in the ALPHA-three trial's upcoming futility analysis.
Answer
President and CEO Dr. David Chang explained that a delta of approximately 30% in MRD conversion rates between the active and control arms would be considered meaningful. He referenced the pivotal trials for Yescarta and Breyanzi in second-line lymphoma, which showed complete remission rate deltas of 33% and 27% respectively, and subsequently demonstrated significant event-free survival benefits.