Chimeric antigen receptor modified T cells targeting CD19 and CD20 have shown activity in Phase I, II trials of patients with hematological malignancies. We conducted a systematic review and meta-analysis of all published clinical trials studying the role of efficacy as well as safety of CD-19 and CD-20 chimeric antigen receptor-T therapy for B-cell hematologic malignancies. A total of 16 studies with 195 patients were identified. The pooled analysis showed an overall response rate of 61% (118/195) with complete response of 42% (81/195) and partial response of 19% (37/195). Major adverse events were cytokine release syndrome 33%, neurotoxicity 33% and B-cell aplasia 54%. Collectively, the results indicate encouraging response in relapsed/refractory B lymphoma and leukemia, especially in acute lymphoblastic leukemia (ALL) patients.

Author Info: (1) University of Arizona, Department of Medicine, Hematology & Oncology, Tucson, AZ, 85724 USA. (2) University of Arizona, Department of Medicine, Hematology & Oncology, Tucson, A Z, 85724 USA. (3) Department of Medicine, Bronx Lebanon Hospital, Icahn School of Medicine at Mount Sinai, Bronx, NY 10457 USA. (4) University of Arizona, Department of Medicine, Hematology & Oncology, Tucson, AZ, 85724 USA. (5) University of Arizona, College of Pharmacy, Tucson, AZ, USA. (6) University of Arizona, Department of Pharmacology and Toxicology, Tucson, AZ, 85724 USA. (7) University of Arizona, Department of Medicine, Hematology & Oncology, Tucson, AZ, 85724 USA. (8) University of Arizona, College of Medicine, Phoenix, AZ, 85004, USA. (9) Tucson Medical Center, Department of Medicine, Tucson Medical Center, Tucson, AZ, 85712, USA. (10) University of Arizona, Department of Medicine, Hematology & Oncology, Tucson, AZ, 85724 USA. (11) Canyon Vista Medical Centre, Department of Medicine, Sierra Vista, AZ, 85635, USA. (12) University of Arizona, College of Medicine, Phoenix, AZ, 85004, USA. (13) University of Arizona, Department of Medicine, Hematology & Oncology, Tucson, AZ, 85724 USA. (14) University of Arizona, Department of Medicine, Hematology & Oncology, Tucson, AZ, 85724 USA.