ZUMA-8:一期研究Brexucabtagene在患有复发性/逆转性慢性淋巴细胞白血病的患者中进行的Autoleucel
Matthew S Davids1, Saad S Kenderian2, Ian W Flinn3
1Dana-Farber Cancer Institute, Boston, Massachusetts, United States.
Blood
|April 10, 2025
概括
在ZUMA-8试验中,评估了在复发性/耐药性CLL中使用CAR T细胞治疗的brexucabtagene autoleucel (brexu-cel) 疗法. 布雷克苏塞尔 (Brexu-cel) 显示出可控的安全性和有效性,在瘤负担较低的患者中产生反应.
科学领域:
- 血液学 血液学 血液学
- 免疫治疗是一种免疫疗法.
- 在瘤学瘤学.
背景情况:
- 复发性/耐药性慢性淋巴细胞白血病 (R/R CLL) 存在重大治疗挑战.
- 新的治疗策略对于改善R/R CLL患者的治疗结果至关重要.
研究的目的:
- 评估brexucabtagene autoleucel (brexu-cel) 的安全性和有效性,这是一种针对CD19的CAR T细胞疗法,用于患有R/R CLL的患者.
- 为了识别潜在的安全信号,并评估治疗响应在未来的试验.
主要方法:
- 在ZUMA-8试验中,注册了患有R/RCLL的患者,这些患者之前至少接受过两种治疗线.
- 患者接受了白血,随后进行了调节化疗 (弗鲁达拉宾/环胺) 和不同剂量的布雷克苏细胞输液.
- 通过剂量限制性毒性 (DLT) 评估安全性,通过客观反应率 (ORR) 和完整反应 (CR) 评估有效性.
主要成果:
- 15名患者接受治疗,平均随访时间为24.3个月.
- 观察到一种剂量限制性毒性 (4级细胞因子释放综合征).
- 总体响应率 (ORR) 达到了47%,其中7%达到完全响应 (CR).
- 在27%的患者中发生了CAR T细胞扩张,在瘤负担较低的患者中发现了反应.
结论:
- 布雷克苏卡巴泰基因自细胞在R/RCLL患者中显示出可管理的安全性.
- 该疗法显示出有效性,包括CAR T细胞扩张和反应,特别是在瘤负担较低的患者中.
- 布雷克苏-塞尔代表了R/RCLL的潜在治疗选择,需要进一步研究.
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