桥梁治疗后代谢性瘤体积反应决定了大型B细胞淋巴瘤中化学抗原受体T细胞的结果
Harper Hubbeling1,2, Doris Leithner3,4, Emily A Silverman1
1Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York.
概括
桥梁疗法 (BT) 可以改善接受仿真抗原受体T细胞 (CAR T) 治疗的高疾病负担患者的结果. 有效的BT有助于高负担患者达到与低疾病负担患者相似的结果,降低毒性.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 无线电学 (Radiomics) 是一种无线电学.
背景情况:
- 较高的疾病负担预示着CAR T细胞治疗的不良结果.
- 桥梁疗法 (BT) 是常用的,但其对CAR T结果的影响尚未得到充分确立.
- 在BT期间的放射性定量动态可能具有预后性.
研究的目的:
- 调查桥梁治疗期间定量放射性细胞减少对CAR T细胞治疗结果的预后影响.
- 评估BT期间代谢瘤体积 (MTV) 变化与大B细胞淋巴瘤患者的无进展生存期 (PFS) 之间的关联.
主要方法:
- 对191名接受CD19-CAR T细胞治疗的大型B细胞淋巴瘤患者的回顾性分析.
- 通过PET扫描评估的代谢性瘤体积 (MTV) 在白血病前和桥梁治疗后.
- 根据MTV,患者被分为高和低疾病负担组.
主要成果:
- 在191名患者中,有144人接受了BT; 56%的人显示MTV减少.
- 在BT期间的MTV轨迹与PFS显著相关 (P < 0.001).
- 患有MTV减少 (高->低) 的患者与持久低MTV (低->低) 和降低神经毒性 (13%与41%对比) 的患者具有相似的PFS.
结论:
- 这项研究是第一个使用放射学来量化在大量现实世界队列中在BT期间疾病负担变化的研究.
- 有效的桥梁治疗可以使最初高负担患者的结果正常化.
- 对BT疗效的放射性评估提供了预后见解,并可以指导治疗决策.
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