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Br J Cancer:野生型KRAS或RAS转移性结直肠癌:帕尼单抗联合更佳支持治疗

2016-10-20 MedSci MedSci原创

研究对象为化疗无效的野生型KRAS基因外显子2的转移性结直肠癌(mCRC)患者,评估帕尼单抗联合最佳支持治疗(BSC) vs BSC,对患者总体生存(OS)的影响;以及报告了3期试验中首个前瞻性扩展的RAS分析。 化疗无效的野生型KRAS基因外显子2的转移性结直肠癌(mCRC)患者按1:1随机分为帕尼单抗(6 mg/kg Q2W)+BSC或BSC。禁止交叉研究。 由中心实验室进行测试,

研究对象为化疗无效的野生型KRAS基因外显子2的转移性结直肠癌(mCRC)患者,评估帕尼单抗联合最佳支持治疗(BSC) vs BSC,对患者总体生存(OS)的影响;以及报告了3期试验中首个前瞻性扩展的RAS分析。

化疗无效的野生型KRAS基因外显子2的转移性结直肠癌(mCRC)患者按1:1随机分为帕尼单抗(6 mg/kg Q2W)+BSC或BSC。禁止交叉研究。

由中心实验室进行测试,确定定RAS突变状态。主要终点是野生型KRAS基因外显子2的转移性结直肠癌患者的OS;次要终点是野生型RAS mCRC(KRAS和NRAS基因外显子2、3、4)患者的OS。

数据显示,研究共纳入了377例野生型KRAS外显子2的转移性结直肠癌患者进行随机研究。

帕尼单抗+BSC vs BSC的中位OS分别为10个月和7.4个月(HR=0.73; 95% CI=0.57-0.93; P=0.0096)。RAS的确定率为86%。

在野生型RAS患者中,帕尼单抗+BSC vs BSC的中位OS分别为10个月 vs 6.9个月(HR=0.70; 95% CI=0.53-0.93; P=0.0135)。

RAS突变的患者并未受益于帕尼单抗(OS HR=0.99; 95% CI=0.49-2.00)。

观察期间没有发现新的安全相关问题。

结果表明,帕尼单抗可显著改善野生型KRAS基因外显子2的转移性结直肠癌患者的OS,对于野生型RAS患者,效果更明显;对以前的回顾性分析进行了验证。

原始出处:

Kim TW.et al.A phase 3 trial evaluating panitumumab plus best supportive care vs best supportive care in chemorefractory wild-type KRAS or RAS metastatic colorectal cancer.Br J Cancer. 2016 Oct 13. doi: 10.1038/bjc.2016.309. [Epub ahead of print]

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    2016-10-25 1e0b9de5m54(暂无匿称)

    好东学习了,好东东

    0

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    2016-10-22 yinhl1978
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