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Long-term survival with donor CD19 CAR-T cell treatment for relapsed patients after allogeneic hematopietic stem cell transplantation
Journal of Hematology & Oncology ( IF 29.5 ) Pub Date : 2024-10-29 , DOI: 10.1186/s13045-024-01626-6
Cheng Zhang, Xiaoqi Wang, Hai Yi, Yi Wang, Zhiling Yan, Jian Zhou, Ting Yang, Aibin Liang, Zhen Wang, Yingying Ma, Qin Wen, Lei Gao, Li Gao, Peiyan Kong, Xu Tan, Erlie Jiang, Xi Zhang

Chimeric Antigen Receptor T (CAR-T) cell therapy has significantly advanced in treating B-cell acute lymphoblastic leukemia (B-ALL) and has shown efficacy in managing relapsed B-ALL after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Donor-derived CAR-T cell offer both high efficacy and rapid response. Although promising results exist, current research lacks definitive evidence of long-term survival benefits for patients treated with donor-derived CAR-T therapy. We report the long-term survival of 32 patients with post-transplant relapsed B-ALL treated with donor-derived CD19 CAR-T cell, achieving either complete Remission (CR) or CR with incomplete peripheral blood recovery (CRi). The median follow-up was 42 months, with 2-year overall survival (OS) and event-free survival (EFS) rates of 56.25% and 50.0%, respectively. The 5-year OS and EFS rates were 53.13% and 46.88%, with no new long-term adverse events observed. These findings demonstrate good long-term safety, supporting donor-derived CAR-T cell as a recommended treatment option for relapsed B-ALL patients post-transplantation. Trial registration: https://www.chictr.org.cn/showproj.html?proj=14315 . Registration number: ChiCTR-OOC-16008447.

中文翻译:


供体 CD19 CAR-T 细胞治疗同种异体造血干细胞移植后复发患者的长期生存率



嵌合抗原受体 T (CAR-T) 细胞疗法在治疗 B 细胞急性淋巴细胞白血病 (B-ALL) 方面取得了显著进展,并在治疗同种异体造血干细胞移植 (allo-HSCT) 后复发的 B-ALL 方面显示出疗效。供体来源的 CAR-T 细胞具有高效和快速反应的特点。尽管存在有希望的结果,但目前的研究缺乏明确的证据表明接受供体来源的 CAR-T 疗法治疗的患者具有长期生存益处。我们报道了 32 例移植后复发性 B-ALL 患者接受供体来源的 CD19 CAR-T 细胞治疗,达到完全缓解 (CR) 或 CR 伴外周血恢复不完全 (CRi)。中位随访时间为 42 个月,2 年总生存率 (OS) 和无事件生存率 (EFS) 分别为 56.25% 和 50.0%。5 年 OS 和 EFS 发生率分别为 53.13% 和 46.88%,未观察到新的长期不良事件。这些发现表明良好的长期安全性,支持供体来源的 CAR-T 细胞作为移植后复发性 B-ALL 患者的推荐治疗选择。试用注册:https://www.chictr.org.cn/showproj.html?proj=14315 。注册号:ChiCTR-OOC-16008447。
更新日期:2024-10-29
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