WCLC 2017:再添新桂|王洁教授团队BENEFIT研究证实液体活检指导一线TKI疗效的可行性

2017-10-18 王书航 肿瘤资讯

王洁教授,医学科学院肿瘤医院肿瘤内科,主任医师,教授,博士生导师,国家杰出青年基金获得者,中国抗癌协会肺癌专业委员会常委,北京医学会肿瘤分会副主任委员,中华结核与呼吸杂志、中国肺癌杂志Lung Cancer、Clin. Lung Cancer编委,国家百千万人才工程入选者、获中国突出贡献中青年专家称号,国务院政府特殊津贴获得者。

王洁教授,医学科学院肿瘤医院肿瘤内科,主任医师,教授,博士生导师,国家杰出青年基金获得者,中国抗癌协会肺癌专业委员会常委,北京医学会肿瘤分会副主任委员,中华结核与呼吸杂志、中国肺癌杂志Lung Cancer、Clin. Lung Cancer编委,国家百千万人才工程入选者、获中国突出贡献中青年专家称号,国务院政府特殊津贴获得者。

王书航教授,北京肿瘤医院 胸部肿瘤内科,主治医师,Roswell Park Cancer Institute博士后,梅奥门诊访问学者

2017年WCLC会议第三天的口头汇报,再次传来中国声音。王洁教授团队的 BENEFIT研究为液体活检领域再添新桂。

众所周知,晚期NSCLC已经进入分子分型基础上的个体化治疗新时代。精准的分子分型需要合格的肿瘤组织标本进行检测,然而在临床实践中,部分患者,组织标本不足或难以获得。既往已有很多研究证实血浆ctDNA的EGFR突变检测和组织标本检测结果具有很好的一致性,并已作为一代EGFR TKI的伴随诊断获批。但既往研究均基于回顾性数据,或前瞻性研究的探索性回顾分析。

BENEFIT研究是目前第一项前瞻性的临床研究,进一步明确了ctDNA EGFR突变指导的一线吉非替尼疗效,同时探索EGFR突变等分子标志物的动态变化意义。


研究的结果显示,ddPCR检测的ctDNA EGFR突变指导的一线吉非替尼治疗的客观有效率为72.1%,治疗8周的疾病控制率为92.3%,中位PFS为9.5个月。该结果与既往IPASS(PFS9.5个月)、 WJTOG 3405 (PFS 9.2个月)等组织EGFR突变基础上的一线EGFR-TKI治疗研究基本一致。

外周血分子标志物的动态监测发现,在治疗的第8周,EGFR突变的检出率与治疗的疗效显着相关,即第8周时EGFR敏感性突变未检出的患者PFS较突变持续阳性的患者显着延长(11m vs 2.1m, HR=7.28, p<0.0001)。该研究同时动态监测了EGFR-TKI耐药基因T790M突变的变化,结果提示T790M突变的中位出现时间为7.6个月(95% CI 6·0,10·0),而从T790M突变出现到疾病进展的中位时间为2个月(95% CI 2·0,4·9),与既往FASTACT2等的研究结果一致,即分子进展可能出现在肿瘤的影像学进展之前,从而提示分子进展或可为三代EGFR-TKI介入的最佳时机,但这一推断仍需临床研究进一步证实,正在进行的 APPLE研究将有助于明确这个问题。

BENEFIT研究同时利用NGS技术分析了基线外周血中多基因的变异。结果提示在180例的患者中,34例(18.9%)携带有除了EGFR突变之外的驱动基因变异(如MET, ERBB2, KRAS, BRAF, RET or ROS1) 和/或抑癌基因的变异(TP53, RB1, and PTEN)。研究将这部分患者分为三组:第1组患者仅携带EGFR敏感性突变,第2组同时具有敏感性EGFR突变和TP53突变,第3组除EGFR敏感性突变还携带其他驱动基因变异(如MET, ERBB2, KRAS, BRAF, RET or ROS1) 和/或抑癌基因的变异(TP53, RB1, and PTEN)。结果提示仅携带EGFR敏感性突变的患者疗效最佳,各组相应的PFS分别为13·0 个月,、9·2 个月以及5.4 个月(HR 3·28; 95% CI 2·06–5·03, p<0·0001)。


Hye Ryun Kim教授对该研究进行了点评,并对研究设计、研究结果及其意义进行了肯定。Kim教授认为该研究设计严谨,以对比组织检测为基础,肯定了 BENEFIT血液结果与组织的一致性,以及检测的敏感性、特异性、疗效及生存预测的可靠性。她认为该研究第一次前瞻性证实了外周血ctDNA检测EGFR突变预测一代EGFR-TKI疗效的可行性,为外周血检测EGFR突变指导一线EGFR-TKI治疗提供了更高级别的循证医学证据。同时,也提出了针对进一步分子检测的三个建议,即T790M突变的血浆检测平台的进一步探索;NGS在吉非替尼治疗疾病进展时留取血液或组织标本进行多基因分析;以及利用ddPCR对EGFR敏感性突变和T790M突变的动态变化进行定量分析。相信针对Kim教授的这些问题,我们都可以在BENEFIT研究即将出炉的分子标志物动态监测分析中找到答案。

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    2018-01-21 周虎
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    2017-10-20 smlt2008
  4. [GetPortalCommentsPageByObjectIdResponse(id=1795749, encodeId=e0051e957497d, content=<a href='/topic/show?id=97521e50981' target=_blank style='color:#2F92EE;'>#TKI疗效#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17509, encryptionId=97521e50981, topicName=TKI疗效)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c9d3459, createdName=周虎, createdTime=Sun Jan 21 00:00:00 CST 2018, time=2018-01-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2022912, encodeId=1fe42022912e1, content=<a href='/topic/show?id=db3b3852004' target=_blank style='color:#2F92EE;'>#可行性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38520, encryptionId=db3b3852004, topicName=可行性)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=循证小兵, createdTime=Mon Aug 13 13:00:00 CST 2018, time=2018-08-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1278045, encodeId=697c12e804505, content=<a href='/topic/show?id=d34e6523544' target=_blank style='color:#2F92EE;'>#活检#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65235, encryptionId=d34e6523544, topicName=活检)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c39f145, createdName=smlt2008, createdTime=Fri Oct 20 13:00:00 CST 2017, time=2017-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1331937, encodeId=6518133193e6a, content=<a href='/topic/show?id=eac1e47058' target=_blank style='color:#2F92EE;'>#FIT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7470, encryptionId=eac1e47058, topicName=FIT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ac782500066, createdName=12498768m13(暂无昵称), createdTime=Fri Oct 20 13:00:00 CST 2017, time=2017-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1384175, encodeId=c1e213841e575, content=<a href='/topic/show?id=14bb1e503a0' target=_blank style='color:#2F92EE;'>#TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17503, encryptionId=14bb1e503a0, topicName=TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Fri Oct 20 13:00:00 CST 2017, time=2017-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1412342, encodeId=d8251412342db, content=<a href='/topic/show?id=de711863ed3' target=_blank style='color:#2F92EE;'>#WCLC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18637, encryptionId=de711863ed3, topicName=WCLC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=91252863770, createdName=木头人514, createdTime=Fri Oct 20 13:00:00 CST 2017, time=2017-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=254178, encodeId=9cfa2541e863, content=液态活检技术越来越成熟了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20170803/IMG5982F7A3DBB3C1061.jpg, createdBy=0ba51605600, createdName=Jianghuiqin, createdTime=Thu Oct 19 06:44:29 CST 2017, time=2017-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=254127, encodeId=502525412e86, content=不错的.学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NdqKgfW3nMpOkC3jXxiaW2po0PtglY5ZuVjERqKADW4HyMI8bcZXWlKgH7tEP9ULBoBzuQMibia4pr1s9rQPqLvqQJ/0, createdBy=e8c02060444, createdName=中医痴, createdTime=Wed Oct 18 22:12:28 CST 2017, time=2017-10-18, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1795749, encodeId=e0051e957497d, content=<a href='/topic/show?id=97521e50981' target=_blank style='color:#2F92EE;'>#TKI疗效#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17509, encryptionId=97521e50981, topicName=TKI疗效)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c9d3459, createdName=周虎, createdTime=Sun Jan 21 00:00:00 CST 2018, time=2018-01-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2022912, encodeId=1fe42022912e1, content=<a href='/topic/show?id=db3b3852004' target=_blank style='color:#2F92EE;'>#可行性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38520, encryptionId=db3b3852004, topicName=可行性)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=循证小兵, createdTime=Mon Aug 13 13:00:00 CST 2018, time=2018-08-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1278045, encodeId=697c12e804505, content=<a href='/topic/show?id=d34e6523544' target=_blank style='color:#2F92EE;'>#活检#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65235, encryptionId=d34e6523544, topicName=活检)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c39f145, createdName=smlt2008, createdTime=Fri Oct 20 13:00:00 CST 2017, time=2017-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1331937, encodeId=6518133193e6a, content=<a href='/topic/show?id=eac1e47058' target=_blank style='color:#2F92EE;'>#FIT#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7470, encryptionId=eac1e47058, topicName=FIT)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ac782500066, createdName=12498768m13(暂无昵称), createdTime=Fri Oct 20 13:00:00 CST 2017, time=2017-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1384175, encodeId=c1e213841e575, content=<a href='/topic/show?id=14bb1e503a0' target=_blank style='color:#2F92EE;'>#TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17503, encryptionId=14bb1e503a0, topicName=TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Fri Oct 20 13:00:00 CST 2017, time=2017-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1412342, encodeId=d8251412342db, content=<a href='/topic/show?id=de711863ed3' target=_blank style='color:#2F92EE;'>#WCLC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18637, encryptionId=de711863ed3, topicName=WCLC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=91252863770, createdName=木头人514, createdTime=Fri Oct 20 13:00:00 CST 2017, time=2017-10-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=254178, encodeId=9cfa2541e863, content=液态活检技术越来越成熟了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20170803/IMG5982F7A3DBB3C1061.jpg, createdBy=0ba51605600, createdName=Jianghuiqin, createdTime=Thu Oct 19 06:44:29 CST 2017, time=2017-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=254127, encodeId=502525412e86, content=不错的.学习了.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NdqKgfW3nMpOkC3jXxiaW2po0PtglY5ZuVjERqKADW4HyMI8bcZXWlKgH7tEP9ULBoBzuQMibia4pr1s9rQPqLvqQJ/0, createdBy=e8c02060444, createdName=中医痴, createdTime=Wed Oct 18 22:12:28 CST 2017, time=2017-10-18, status=1, ipAttribution=)]
    2017-10-20 lsj628
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    2017-10-20 木头人514
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    2017-10-19 Jianghuiqin

    液态活检技术越来越成熟了!

    0

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    2017-10-18 中医痴

    不错的.学习了.谢谢分享!

    0

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