对非小细胞肺癌和临床结果的新辅助化疗免疫治疗周期数的选择:现实世界的分析
Baihua Zhang1,2, Xiaotong Guo1, Ran Jia1
1Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital and Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China.
确定非小细胞肺癌 (NSCLC) 的新辅助化疗免疫治疗周期的最佳数量是关键. 虽然3-4个循环可能会提高手术安全性,但2个循环显示出可比的病理反应率和更少的并发症.
科学领域:
- 在瘤学瘤学.
- 胸部外科手术 胸部外科手术
- 临床药理学 临床药理学
背景情况:
- 新辅助化学免疫疗法是非小细胞肺癌 (NSCLC) 的标准治疗方法.
- 对于NSCLC的新辅助化疗免疫疗法,治疗周期的最佳数量仍未确定.
- 这项研究解决了在NSCLC新辅助治疗中周期数优化的临床问题.
研究的目的:
- 确定NSCLC中新辅助治疗周期的最佳数量.
- 为了比较2周期和3至4周期新辅助化学免疫疗法方案之间的主要病理反应 (MPR) 率.
- 评估周期数对手术时间,不良事件和术后发病率的影响.
主要方法:
- 在251名接受新辅助化学免疫疗法并随后接受手术的NSCLC患者的现实临床分析 (2020年1月 - 2022年8月).
- 患者被分为两组: 2 周期和 3-4 周期的新辅助化学免疫疗法.
- 主要终点是主要病理反应 (MPR) 的比率;次要终点包括手术时间,不良事件和术后发病率.
主要成果:
- 在2循环 (57.3%) 和3循环 (57.4%) 组之间,MPR率没有显著差异 (p=0.529).
- 3-4周期组的手术延迟显著增加 (>治疗后42天),新辅助疗法相关不良事件发生率更高 (72.3%对58.0%).
- 2循环组的术后发病率较高 (28.0%对12.9%). 然而,在特定的子组 (例如,低PD-L1表达) 中,3-4个周期显示MPR有所改善.
结论:
- 新辅助化学免疫疗法对NSCLC是有效的.
- 将新辅助化疗免疫疗法延长到3-4个周期可能不会显著增加MPR,但可能会影响手术安全性和术后结果.
- CT重新评估和PD-L1表达水平可能有助于个性化NSCLC患者的新辅助周期数量.
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