转移性结直肠癌免疫治疗的实践模式和生存结果
Shahla Bari1, Marco Matejcic2, Richard D Kim3
1Department of Medical Oncology, Duke Cancer Institute, Durham, North Carolina.
JAMA network open
|March 20, 2025
概括
免疫检查点抑制剂 (ICI) 改善了MSI-H瘤患者转移性结直肠癌 (mCRC) 的存活率. 临床因素影响ICI在MSS瘤中的疗效,为治疗策略提供了洞察力.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 结肠直肠癌研究研究
背景情况:
- 免疫检查点抑制剂 (ICI) 已被批准用于微卫星不稳定 (MSI-H) 转移性结直肠癌 (mCRC).
- 影响ICI接收和在常规临床实践中对mCRC有效性的因素尚不清楚.
研究的目的:
- 在mCRC患者中确定与ICI接收相关的因素.
- 在常规临床实践中评估mCRC患者与ICI治疗相关的生存结果.
主要方法:
- 基于人口的队列研究,使用全国范围的电子健康记录数据.
- 包括在2013年1月至2019年6月期间被诊断患有mCRC的18932名患者.
- 分析了ICI治疗的接收,整体存活率 (OS) 和停止治疗的时间 (TTD).
主要成果:
- 与微卫星稳定 (MSS) 瘤相比,MSI-H瘤显著增加了ICI接收的概率 (OR, 22.66).
- 同步的mCRC诊断降低了ICI接收几率 (OR,0.57).
- 在MSI-H患者中,ICI作为一线治疗显著改善了OS;在MSS患者中,基于ICI的治疗显示出基于白蛋白水平和抗生素使用的不同OS关联,显著的持久反应率为12.3%.
结论:
- 临床特征对接受基于ICI的治疗的mCRC患者的生存结果产生影响.
- 这些发现对优化免疫疗法策略具有重大意义,特别是在MSS瘤中,反应通常是有限的.
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