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肿瘤第一线 · 学术知识传播

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J Clin Oncol:根据UGT1A1基因型定量伊立替康可显著改善晚期直肠癌患者预后

2021-12-16 MedSci原创 MedSci原创

基于尿苷二磷酸葡糖醛酸糖基转移酶1A1(UGT1A1)基因型区分伊立替康剂量可改善病理完全缓解(pCR)率。在该研究中,研究人员进一步研究了术前伊立替康联合以卡培他滨为基础的局部放化疗晚期直肠癌的治疗

基于尿苷二磷酸葡糖醛酸糖基转移酶1A1(UGT1A1)基因型区分伊立替康剂量可改善病理完全缓解(pCR)率。在该研究中,研究人员进一步研究了术前伊立替康联合以卡培他滨为基础的局部放化疗晚期直肠癌的治疗作用。 研究流程 该研究在我国开展的一项随机、开放标签、多中心的3期试验,招募临床T3-4期和(或)淋巴结转移(N+)的直肠腺癌患者。将UGT1A1基因型为*1*1或*1*28的患者随机分至对照组(盆部放疗+卡培他滨)或实验组(放疗+卡培他滨+伊立替康[*1*1型:80 mg/m2•周;*1*28型:65 mg/m2•周],后用伊立替康+卡培他滨维持治疗)。主要终点是pCR。 患者的基本特征 共招募了360位患者,其中356位被纳入意向治疗人群(每组178人)。对照组和实验组的手术率分别为87%和88%,pCR率分别为15%(27例)和30%(53例,风险比 1.96,p=0.001)。对照组和实验组分别有4位和6位患者获得完全临床缓解。 副作用情况 对照组和实验组分别有11位(6%)和68位(38%)患者发生了3/4级毒性反应。最常见的3/4级毒性反应有白细胞减少症、中性粒细胞减少。

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    2022-05-19 minlingfeng
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    2022-05-16 zz70

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