Abstract

背景与目的免疫检查点抑制剂单药治疗在驱动基因阳性的晚期非小细胞肺癌(non-small cell lung cancer, NSCLC)患者中疗效甚微。研究表明,部分驱动基因阳性患者靶向治疗耐药后对免疫联合治疗仍有效。国内研究甚少。本研究旨在分析人表皮生长因子(epidermal growth factor receptor, EGFR)敏感突变NSCLC患者后线接受免疫治疗的疗效,评价真实世界免疫联合化疗在EGFR突变晚期患者后线治疗中的价值。方法收集2018年6月-2020年11月在首都医科大学附属北京胸科医院确诊的EGFR突变的初治晚期肺腺癌患者共27例,均在靶向治疗进展后接受了程序性死亡受体1(programmed cell death protein 1, PD-1)检查点抑制剂联合化疗以及抗血管生成药物治疗。结果27例晚期NSCLC患者中,未合并T790M突变的有19例(70.4%),合并T790M点突变的有8例(29.6%)。总客观缓解率为40.7%。Kaplan-Meier生存分析显示,不同EGFR突变类型之间接受含PD-1单抗治疗的无进展生存期(progression-free survival, PFS)均无统计学差异(χ2=4.15, P=0.23)。未合并T790M突变的患者PFS较合并T790M突变的患者显著延长(9.2个月vs 3.3个月,χ2=2.81,P=0.041),两者总生存时间未见统计学差异(12.2个月vs 7.3个月,χ2=3.22,P=0.062)。未合并T790M的客观缓解率明显优于合并T790M的患者(52.63% vs 12.5%, P=0.045)。结论EGFR突变患者人群能从后线免疫联合治疗中获益,但合并T790M突变的患者后线接受免疫联合治疗疗效差。因此,这部分患者的后续治疗和全程化管理需要探索更优的治疗策略来提高获益。

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.