Cluster of differentiation (CD) 19 chimeric antigen receptor T-cell (CAR-T) has been a very promising treatment option for multiple types of B-cell lymphoma. Kymriah® (tisagenlecleucel, Novartis) and Yescarta® (axicabtagene ciloleucel, Gilead) were licensed by the United States Food and Drug Administration (US FDA) and European Medicines Agency (EMA) in 2017 to treat relapsed or refractory B-cell acute lymphoblastic leukemia (B-ALL), diffuse large B-cell lymphoma (DLBCL), and High-grade B-cell lymphoma (HGBCL). A third anti-CD19 CAR-T product, Tecartus (brexucabtagene autoleucel, Gilead) was approved by the US FDA for relapsed and refractory mantle cell lymphoma (MCL) in July 2020. In February 2021, another product, Breyanzi® (lisocabtagene maraleucel, Juno Therapeutics, Inc.), was approved by the US FDA for relapsed or refractory large B-cell lymphoma after two or more lines of systemic therapy, including DLBCL not otherwise specified (including DLBCL arising from indolent lymphoma), high-grade B-cell lymphoma, Primary mediastinal large B cell lymphoma (PMLBCL), and Gr. 3b FL.~Currently, in Taiwan, no CD19 CAR-T therapies are available commercially.This Phase 1/Phase 2 study will test PL001, a CD19 CAR-T therapy manufactured by Pell Bio-Med Technology Co., Ltd., as a monotherapy for relapsed or refractory B-cell lymphoma. The Phase 1 of the study will be conducted to establish a dose range that is well tolerated by the majority of patients and to provide a safety profile of PL001 in the target patient population. The results of the Phase 1 of the study will recommend the dose selection for the Phase 2 of the study. Phase 2 of the study will assess the efficacy and safety of PL001 in patients with relapsed or refractory B cell lymphoma.
This is a multiple center, non-randomized, open-label, phase 1/2 study. The primary objective of Phase 1 is to evaluate the safety of PL001 and find the recommended Phase 2 dose (RP2D). The objective of Phase 2 is to evaluate the safety and efficacy of CD19 CAR-T(known as PL001).