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JCO:结直肠癌患者FOLFIRI+爱必妥的应用以及RAS突变状态的研究

2015-02-04 MedSci MedSci原创

目的:CRYSTAL是一项III期临床试验,它表明了在KRAS外显子2(密码子12、13)野生型的转移性结直肠癌(mCRC)患者的一线治疗中,FOLFIRI(氟脲嘧啶+亚叶酸钙+伊立替康)方案加上西妥昔单抗能显著提高患者的OS、PFS和客观缓解率。通过更多的RAS基因检测对本试验进行亚组再分析。 材料和方法:将CRYSTAL研究中KRAS外显子2野生型患者的组织样本重新进行其它RAS基因检测。包

目的:CRYSTAL是一项III期临床试验,它表明了在KRAS外显子2(密码子12、13)野生型的转移性结直肠癌(mCRC)患者的一线治疗中,FOLFIRI(氟脲嘧啶+亚叶酸钙+伊立替康)方案加上西妥昔单抗能显著提高患者的OS、PFS和客观缓解率。通过更多的RAS基因检测对本试验进行亚组再分析。

材料和方法:将CRYSTAL研究中KRAS外显子2野生型患者的组织样本重新进行其它RAS基因检测。包括:4个其余的KRAS密码子(外显子3、4)、6个NRAS密码子(外显子2、3、4)。

结果:在666名KRAS外显子2野生型患者的肿瘤组织样本中,有430名患者(64.6%)的肿瘤组织样本可进行突变状态再评估。在这430名患者的肿瘤组织样本中有63名患者(14.7%)发现了其它RAS突变。在全RAS野生型的患者中,FOLFIRI+西妥昔单抗能使得患者在所有研究终点中都有获益。在有其它RAS突变的患者中,FOLFIRI+西妥昔单抗并不能使其获益。RAS亚组患者的安全性与预期结果一致。

结论:在mCRC一线治疗中,全RAS野生型患者在使用FOLFIRI+西妥昔单抗治疗方案时能显著获益,而RAS突变患者未能获益。在应用EGFR受体抑制剂之前进行全RAS突变的分子检测很有必要。因而对西妥昔单抗的应用进行进一步的限制能使患者的利益更加扩大化。

原始出处

Van Cutsem E1, Lenz HJ2, Köhne CH2, Heinemann V2, Tejpar S2, Melezínek I2, Beier F2, Stroh C2, Rougier P2, van Krieken JH2, Ciardiello F2.Fluorouracil, Leucovorin, and Irinotecan Plus Cetuximab Treatment and RAS Mutations in Colorectal Cancer.J Clin Oncol. 2015 Jan 20

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    2016-01-04 lidong40
  2. [GetPortalCommentsPageByObjectIdResponse(id=1891171, encodeId=29d418911e1be, content=<a href='/topic/show?id=25b0102e2df' target=_blank style='color:#2F92EE;'>#JCO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10272, encryptionId=25b0102e2df, topicName=JCO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6da1120, createdName=lidong40, createdTime=Mon Jan 04 13:39:00 CST 2016, time=2016-01-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=21272, encodeId=49fc212e2b9, content=奥沙利铂配合靶向治疗也很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9b491621959, createdName=15319ae780m, createdTime=Thu Apr 16 22:42:00 CST 2015, time=2015-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1452740, encodeId=afca1452e400b, content=<a href='/topic/show?id=098ee8679ad' target=_blank style='color:#2F92EE;'>#结直肠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=78679, encryptionId=098ee8679ad, topicName=结直肠)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9ace5575596, createdName=crystal0564, createdTime=Fri Feb 06 01:39:00 CST 2015, time=2015-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1478127, encodeId=f37a14e81278f, content=<a href='/topic/show?id=0529e56859' target=_blank style='color:#2F92EE;'>#FOLFIRI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7568, encryptionId=0529e56859, topicName=FOLFIRI)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=仁心济世, createdTime=Fri Feb 06 01:39:00 CST 2015, time=2015-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1585290, encodeId=98d01585290d9, content=<a href='/topic/show?id=792b15145a6' target=_blank style='color:#2F92EE;'>#RAS突变#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15145, encryptionId=792b15145a6, topicName=RAS突变)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6f2c17156536, createdName=bioon7, createdTime=Fri Feb 06 01:39:00 CST 2015, time=2015-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15072, encodeId=070f150e2a9, content=FOLFIRI配合靶向治疗确实比奥利沙铂要好, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c4a5105539, createdName=lovetcm, createdTime=Wed Feb 04 23:51:00 CST 2015, time=2015-02-04, status=1, ipAttribution=)]
    2015-04-16 15319ae780m

    奥沙利铂配合靶向治疗也很好

    0

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    2015-02-06 bioon7
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    2015-02-04 lovetcm

    FOLFIRI配合靶向治疗确实比奥利沙铂要好

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