中枢神经系统桥梁放射疗法在CAR T细胞治疗积极的B细胞淋巴瘤之前实现了快速的细胞减少
Gustav Y Cederquist1, Javin Schefflein2, Sean M Devlin3
1Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY.
Blood advances
|June 11, 2024
概括
在CAR T细胞疗法 (CART) 之前的桥梁放射治疗 (BRT) 显著减少了中枢神经系统淋巴瘤 (CNSL) 病变. 这种方法有望改善接受CART的CNSL患者的持久反应.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 辐射瘤学 辐射瘤学
背景情况:
- 化学抗原受体 (CAR) T细胞疗法 (CART) 为治疗中枢神经系统淋巴瘤 (CNSL) 提供了一个有前途的途径.
- 然而,对于CNSL而言,对CART的持续反应仍然是一个挑战,需要制定提高其有效性的策略.
- 桥梁放射疗法 (BRT) 通过减少瘤负担,成功改善了额外头骨淋巴瘤的CART结果.
研究的目的:
- 调查使用桥梁放射疗法 (BRT) 在CNSL患者的CAR T细胞疗法 (CART) 之前实现细胞减少的疗效和安全性.
- 评估中枢神经系统-BRT对病变大小减少和随后治疗反应的影响.
主要方法:
- 对非霍奇金B细胞CNSL患者进行了回顾性分析,这些患者在商业CART之前接受了CNS-BRT.
- 在CART输注之前,通过测量病变大小的变化来评估细胞减少.
- 评估了患者的结果,包括反应率和不良事件 (细胞因子释放综合征,神经毒性).
主要成果:
- 在CNS-BRT中,CNSL损伤大小的平均显著减少为74.0%.
- 大多数 (8/10) 患有 CNSL 的患者在治疗后实现了完全或部分反应.
- 3级以上的细胞因子释放综合征和免疫效应细胞相关的神经毒性综合征发生在很少一部分患者中.
结论:
- 在CART启动之前,CNS-BRT有效地实现了CNSL中的快速细胞减少.
- 这种桥梁战略似乎与CNSL的有利反应和安全概况有关.
- 需要进一步的研究来验证BRT作为增强CART在CNSL中的有效性的桥梁模式.
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