Lancet Oncol:直肠癌术前放疗后氟尿嘧啶辅助化疗无生存优势

2014-03-10 MedSci Lancet Oncol

欧洲癌症治疗研究组织(EORTC)22921研究发现直肠癌术前放疗后氟尿嘧啶辅助化疗无生存优势。这项随机对照研究在T3或T4可切除的直肠癌患者中,观察到术前放疗组与术前放化疗组相比、术后辅助化疗组与监测组相比10年OS率(P值分别为0.91和0.32)和DFS率(P值分别为0.38和0.29)均无显著差异。单纯放疗组(252例)、新辅助放化疗组、术前放疗继辅助化疗组、新辅助放化疗继辅助化疗

欧洲癌症治疗研究组织EORTC 22921研究发现,经过了5年的随访,对于直肠癌患者术前放疗后氟尿嘧啶辅助化疗无显著生存优势。但Kaplan-Meier曲线却有不同,暗示可能推迟受益。该研究在线发表于1月17日的Lancet Oncol。【原文下载】

这项随机对照研究对T3或T4可切除的直肠癌患者中,观察到术前放疗组与术前放化疗组相比、术后辅助化疗组与监测组相比10年OS率(P值分别为0.91和0.32)和DFS率(P值分别为0.38和0.29)均无显著差异。

表1:治疗组和辅助治疗的病人情况


单纯放疗组(252例)、新辅助放化疗组、术前放疗继辅助化疗组、新辅助放化疗继辅助化疗组(均253例)10年局部复发累积发生率分别为22.4%、11.8%、14.5%和11.7%(P=0.0017),四组间远处转移累积发生率(P=0.52)和长期副作用无显著差异(P=0.22)。


图1:各治疗方法的总体生存率对比


图1:各治疗方法的无病生存率对比

研究者表示,直肠癌术前放疗后氟尿嘧啶辅助化疗对无病生存和总生存期没有影响,其实验结果不支持术前放疗后辅助化疗手段或不采取任何化疗手段。有必要寻找新的治疗策略。

原始出处:
Bosset JF1, Calais G2, Mineur L3, Maingon P4, Stojanovic-Rundic S5, Bensadoun RJ6, Bardet E7, Beny A8, Ollier JC9, Bolla M10, Marchal D11, Van Laethem JL12, Klein V13, Giralt J14, Clavère P15, Glanzmann C16, Cellier P17, Collette L18; EORTC Radiation Oncology Group.Fluorouracil-based adjuvant chemotherapy after preoperative chemoradiotherapy in rectal cancer: long-term results of the EORTC 22921 randomised study.Lancet Oncol. 2014 Feb;15(2):184-90. doi: 10.1016/S1470-2045(13)70599-0.【原文下载】

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    2014-10-08 howi
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