RecruitingPhase 1Drug trialLV20.19 CAR T-Cells in Combination With Pirtobrutinib for Relapsed, Refractory B-cell MalignanciesThis is a phase I, interventional, single arm, open label, treatment study designed to evaluate the safety and efficacy of LV20.19 CAR -T cells with pirtobrutinib bridging and maintenance in adult patients with B cell malignancies that have failed prior therapies.