针对可切除胸腔食道状细胞癌的新辅助化学放射治疗中不同辐射剂量的随机研究 (Neo-DRATEC试验)
Yang Yang1, Youhua Jiang2, Changchun Wang2
1Taizhou Key Laboratory of Minimally Invasive Interventional Therapy & Artificial Intelligence, Taizhou Campus of Zhejiang Cancer Hospital (Taizhou Cancer Hospital), Taizhou, Zhejiang 317502, China; Department of Thoracic Radiotherapy, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China..
International journal of radiation oncology, biology, physics
|February 19, 2026
概括
对食道癌的新辅助化疗和放射治疗中较高的辐射剂量并没有改善生存率,但增加了病理反应和食道炎. 这项研究为食道状细胞癌 (ESCC) 的个性化治疗决策提供了数据.
科学领域:
- 在瘤学瘤学.
- 辐射瘤学 辐射瘤学
- 胃肠道瘤学 胃肠道瘤学
背景情况:
- 新辅助化学放射疗法 (nCRT) 是可切除食道状细胞癌 (ESCC) 的标准.
- 由于前性数据有限,ESCC中nCRT的最佳辐射剂量选择仍然不清楚.
- 临床实践显示ESCC nCRT的辐射剂量存在很大差异.
研究的目的:
- 为了比较两种标准辐射剂量方案 (50.4 Gy与41.4 Gy) 在nCRT中用于可切除的胸部ESCC.
- 评估剂量升级对无进展生存 (PFS) 和其他疗效终点的影响.
- 提供随机数据,以指导个人化nCRT剂量选择在ESCC.
主要方法:
- 第二阶段,单中心,前性随机对照试验.
- 147名患有局部发达胸部ESCC的患者随机分类1:1到50.4 Gy/28F或41.4 Gy/23F.
- 同时每周服用帕克利塔塞尔和卡博普拉丁;主要终点:2年PFS.
主要成果:
- 较高的MPR率 (73.9%) 与50.4 Gy相比,52.7%与41.4 Gy (p=0.029).
- 2年的PFS率为56.7% (高剂量) 和49.3% (低剂量),HR为0.72 (p=0.14).
- 胃肠炎增加 50.4 Gy;可比的术后并发症和整体存活时间 (OS).
结论:
- 在ESCC nCRT中,剂量升级到50.4 Gy并没有改善PFS或OS.
- 较高的辐射剂量增加了主要病理反应 (MPR) 和食道炎.
- 研究结果表明,常规剂量升级对生存没有好处,但可能会为个性化治疗提供信息.
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