Diffuse large B-cell lymphoma (DLBCL) is highly curable with standard chemoimmunotherapy; however, approximately one third of patients experience disease progression during or after treatment.1 For many patients with relapsed or refractory (R/R) DLBCL, chimeric antigen receptor T-cell (CAR-T) therapy demonstrates curative potential and superior outcomes compared with the historical standard of high-dose therapy and autologous stem cell transplantion (ASCT).2,3 However, relapses after CAR-T...