Kaplan-Meier estimates of duration of CAR T-cell persistence and B-cell aplasia. (A) Fifty percent (95% CI, 28%-69%) of patients are estimated to have CAR T cells detectable in PB by qPCR at 6 months after the first infusion. (B) B-cell aplasia is estimated to continue for 12 months among 51% (95% CI, 31%-79%) of patients. Dotted lines indicate 95% CIs.