在转移性KRAS突变的非小细胞肺癌中对一线 pembrolizumab 的反应
Sabrina Rossi1, Arianna Pagliaro1,2, Giovanna Finocchiaro1
1Medical Oncology & Hematology Unit, IRCCS Humanitas Research Hospital, Rozzano, Milan, 20089, Italy.
Future oncology (London, England)
|March 6, 2024
概括
在接受单独免疫治疗的非小细胞肺癌患者中,KRAS突变可能会预测对 pembrolizumab 的更好的反应. 这一发现表明KRAS状态可以指导肺癌的治疗决策.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 免疫治疗是一种免疫疗法.
背景情况:
- 非小细胞肺癌 (NSCLC) 治疗格局正在随着免疫治疗的发展而变化.
- 预测生物标志物对于优化针对性治疗的患者选择至关重要.
- KRAS突变在NSCLC中很常见,但它们在预测免疫疗法反应中的作用正在研究中.
研究的目的:
- 为了研究KRAS突变在接受一线 pembrolizumab治疗的NSCLC患者的预测价值.
- 为了比较KRAS突变和野生型NSCLC患者接受pembrolizumab单疗法或化疗免疫疗法的结局.
主要方法:
- 对接受一线 pembrolizumab.com的NSCLC患者的回顾性分析.
- 患者被分为单一治疗 (n=213) 和化疗免疫治疗 (n=81) 的班组.
- 评估了KRAS突变状态,并分析了无进展生存率 (PFS) 和总生存率 (OS).
主要成果:
- 在27%的研究队列中发现了KRAS突变.
- 在 pembrolizumab 单疗组中,KRAS 突变的 NSCLC 显示显著更长的 PFS (11.3 vs 4.4 个月,p=0.019).
- 在化疗免疫治疗组中没有观察到PFS的显著差异 (9.7 vs 7.3个月,p=0.435).
结论:
- 在NSCLC中,KRAS突变状态可以作为对 pembrolizumab单疗反应的预测生物标志物.
- 需要进一步的研究来阐明KRAS在化疗免疫治疗反应中的作用.
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