RecruitingPhase 2Drug trialPhase 2 Open Label Randomized Study of Pirtobrutinib and Brexucabtagene Autoleucel in R/R MCLThis is a phase 2, open-label, randomized, multicenter clinical trial in patients with relapsed/refractory mantle cell lymphoma (R/R MCL) who meet the criteria for standard-of-care FDA label for CD19 CAR T-cell therapy with brexucabtagene autoleucel (brexu-cel).