术前化学放射治疗加上 pembrolizumab 用于食道状细胞癌 (ACTS-29) 的治疗
Min Hee Hong1, Sung Kwan Shin2, Su-Jin Choi3
1Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
Esophagus : official journal of the Japan Esophageal Society
|December 25, 2025
概括
添加 pembrolizumab 新辅助化学放射治疗 (NCRT) 和食道癌的手术是安全的和可行的. 生物标志物分析确定了治疗反应的潜在预测因素,尽管疗效低于预期.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 胃肠道癌症研究研究
背景情况:
- 局部晚期食道状细胞癌 (ESCC) 的标准治疗包括新辅助化学放射治疗 (NCRT),然后进行手术.
- 尽管使用标准治疗方法,ESCC目前的生存结果仍然不够理想.
- 免疫检查点抑制剂在先进的ESCC中表现有前途,表明组合疗法的潜力.
研究的目的:
- 评估pembrolizumab与NCRT结合的安全性和有效性,以及局部发达ESCC的手术.
- 确定病理完整响应 (pCR) 率作为主要终点.
- 探索包括生存率在内的二次终点,并确定治疗反应的预测生物标志物.
主要方法:
- 进行了一项单臂,前性,多中心II期试验 (NCT02844075).
- 患者接受了新辅助剂帕克利塔塞尔,卡博普拉丁,潘布罗利祖马布和放射治疗,随后进行手术和辅助剂潘布罗利祖马布.
- 生物标记分析包括PD-L1表达,WES,RNA测序和TMB.
主要成果:
- 在接受手术的26名患者中,病理完整反应 (pCR) 率为23.1%.
- 无事件生存 (EFS),总生存 (OS) 和无疾病生存 (DFS) 的中位数分别为11.0个月,33.6个月和17.9个月.
- 25%的患者发生了3-4级不良事件;没有报告与治疗相关的死亡. 更高的TMB和特定基因表达特征与更好的结果相关.
结论:
- 添加pembrolizumab到NCRT和手术局部先进的ESCC是安全的和可行的.
- 该pCR率没有达到预规定的值,整体疗效低于预期.
- 生物标志物分析确定了治疗反应的潜在预测因素,这需要在更大的试验中进一步调查.
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