在大型B细胞淋巴瘤中,CAR T细胞治疗反应因外节疾病部位而异
Alejandro Luna1,2, Sean M Devlin3, Kai Rejeski1,4
1Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Blood cancer journal
|April 14, 2025
概括
在接受CAR-T治疗的大型B细胞淋巴瘤 (LBCL) 患者中,外节位是常见的. 这些部位的参与,特别是结节疾病,降低了反应率和存活率,表明需要有针对性的战略.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 血液学 血液学 血液学
背景情况:
- 大型B细胞淋巴瘤 (LBCL) 中的外节 (EN) 疾病可能代表了对CD19导向的仿制抗原受体T细胞 (CAR-T) 疗法耐药的庇护所.
- 了解EN参与对CAR-T治疗结果的影响对于提高治疗疗效至关重要.
研究的目的:
- 为了研究外节点 (EN) 部位作为大B细胞淋巴瘤 (LBCL) 患者的庇护区的作用,这些患者接受了CD19导向的CAR-T疗法.
- 评估EN疾病对治疗反应,进展和生存结果的影响.
主要方法:
- 对283名成年LBCL患者进行了回顾性分析,这些患者接受了商业 CD19 CAR-T 治疗.
- 在四个时间点对958个PET-CT扫描进行了评估:前,前淋巴缺失,最佳反应和复发.
- 基于外节和节点疾病参与的存在和位置的结果的比较.
主要成果:
- 在CAR-T治疗前的LBCL患者中,外节参与是普遍存在的 (76%).
- 与结节外和结节疾病 (EN+ND) 相关的患者显示,与单独结节疾病相比,完整反应率较低,无进展生存时间较短.
- 特定的部位,如肺部/斑膜/心周和胃肠/腹膜,具有最低的局部反应率和最高的同一部位复发风险.
- 与结节性复发相比,在CAR-T治疗后,在结节外部的复发与明显较低的整体存活率有关.
结论:
- 外节疾病在接受CAR-T治疗的LBCL患者中很常见,并显著影响治疗结果.
- 特定地点的分析揭示了不同的反应和复发风险,某些EN站点带来了更大的挑战.
- 需要针对器官的策略来提高LBCL患者的CAR-T疗法的疗效.
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