Abstract
Dual-targeting chimeric antigen receptor (CAR)-T cell therapy has been proposed as a potential solution for overcoming antigen escape during anti-CD19 CAR-T treatment. We performed this systematic review and meta-analysis to investigate the efficacy and safety of this novel treatment in patients with B cell non-Hodgkin lymphoma (B-NHL) and B cell acute lymphoblastic leukemia (B-ALL). We systematically searched relevant literature based on databases (PubMed, Web of Science, Embase and Cochrane) and conference abstracts. The primary outcomes measured were the best objective response rate (ORR) or complete response (CR), 12-month overall survival (OS) and progression-free survival (PFS), cytokine release syndrome (CRS), and neurotoxicity. Fifteen registered prospective open-label clinical trials were included. Among the 260 patients with B-NHL, the pooled best ORR and CR were 77% (95% confidence interval [CI]: 0.71–0.82) and 52% (95% CI: 0.40–0.63), respectively, and the pooled 12-month PFS and OS were 54.0% (95% CI: 0.47–0.61) and 66.0% (95% CI: 0.56–0.77), respectively. In the 159 patients with B-ALL, the combined best CR was observed to be 92% (95% CI: 0.82–0.99) and the pooled 12-month PFS and OS were 65.0% (95% CI: 0.51–0.77) and 73.0% (95% CI: 0.56–0.92), respectively. Moreover, in B-NHL patients, grade ≥3 CRS was observed in 14.0% (95% CI: 0.04–0.29) of these patients, and 5.0% (95% CI: 0.02–0.08) showed grade ≥3 neurotoxicity; in the case of B-ALL patients, grade ≥3 CRS and neurotoxicity occurred in 11.0% (95% CI: 0.04–0.19) and 2.0% (95% CI: 0.00–0.06), respectively. This study demonstrates the safety and clinical efficacy of dual-targeting CAR-T cell therapies in B cell malignancies. Further, well-designed randomized controlled trials are required to establish the role of dual-targeting CAR-T cell therapy in patients with B cell malignancies.
Get full access to this article
View all access options for this article.
References
Supplementary Material
Please find the following supplemental material available below.
For Open Access articles published under a Creative Commons License, all supplemental material carries the same license as the article it is associated with.
For non-Open Access articles published, all supplemental material carries a non-exclusive license, and permission requests for re-use of supplemental material or any part of supplemental material shall be sent directly to the copyright owner as specified in the copyright notice associated with the article.
