ASCO 2014:T790M的异质性状态影响EGFR-TKI耐药NSCLC的化疗结果

2014-05-31 悄悄 译 医学论坛网

摘要号: 11049 第一作者:郑迪,上海市肺科医院肿瘤科 标题:EGFR-TKI治疗的晚期非小细胞肺癌患者的EGFR-T790M获得性突变的动态无创监测及其异质性发现 背景:EGFR-T790M突变是下一代EGFR-TKI的一个有价值的靶点,大约一半的EGFR突变阳性使用EGFR-TKI的NSCLC患者发生获得性耐药的原因是EGFR-T790M突变。在血浆中

摘要号: 11049

第一作者:郑迪,上海市肺科医院肿瘤科

标题:EGFR-TKI治疗的晚期非小细胞肺癌患者的EGFR-T790M获得性突变的动态无创监测及其异质性发现

背景:EGFR-T790M突变是下一代EGFR-TKI的一个有价值的靶点,大约一半的EGFR突变阳性使用EGFR-TKI的NSCLC患者发生获得性耐药的原因是EGFR-T790M突变。在血浆中循环的游离DNA(cfDNA)的EGFR-T790M无创检测已被证明是可行的,因为肿瘤组织的再次活检是具有挑战性的。然而,T790M血浆检测的临床应用还有待探索,特别是监测的的速率、时间、并存的敏感突变状态以及对EGFR-TKI化疗抵抗的潜在影响。

方法:建立了高灵敏度数字PCR方法检测血浆中EGFR突变,并且在EGFR-TKI类药物初治NSCLC患者中验证了其检测cfDNA的高灵敏度和特异性。用这个方法检测了66例EGFR-TKI获得性耐药的疾病进展(PD)的非小细胞肺癌患者血浆cfDNA中的T790M。PD前的血浆样本可用于某些病人。

结果:总体而言,在66例post-PD的患者中检测出36例EGFR-T790M(54.5%)。36例中的10例T790M+患者,5例(50%)在PD前1.5-3.5个月就可以检测到T790M+。然而36 例T790M+ 患者中有30例(83.3%)是T790M并存一个敏感突变。此外,在少数接受过化疗加TKI后PD的患者中,敏感突变和T790M的动态定量变化初步显示,即使在双突变的情况下,T790M和敏感突变DNA可能并不总是来自于同一肿瘤细胞群, T790M突变的异质性水平可以影响EGFR-TKI耐药的NSCLC的化疗结果。

结论:血浆cfDNA的无创监测可以检测到T790M,这与EGFR-TKI治疗晚期非小细胞肺癌患者肿瘤组织中已报道的阳性率类似。T790M可在临床PD3.5个月前从血浆中检测到。在肿瘤细胞中,T790M可能具有或不具有EGFR敏感突变,并且它的异质性状态可能会影响EGFR-TKI耐药的NASLC的化疗的结果。

研究链接:Noninvasive monitoring of dynamics of acquired EGFR-T790M mutation and discovery of its heterogeneity in patients with advanced NSCLC treated with EGFR-TKI.

 


版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1795245, encodeId=e1971e95245cf, content=<a href='/topic/show?id=98f91e05925' target=_blank style='color:#2F92EE;'>#T790M#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17059, encryptionId=98f91e05925, topicName=T790M)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c838337, createdName=zhlpower, createdTime=Wed Mar 04 02:41:00 CST 2015, time=2015-03-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938353, encodeId=c71e193835343, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Tue Dec 16 18:41:00 CST 2014, time=2014-12-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1383051, encodeId=65d11383051e3, content=<a href='/topic/show?id=0c8265e2b3' target=_blank style='color:#2F92EE;'>#EGFR-TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6572, encryptionId=0c8265e2b3, topicName=EGFR-TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6732482, createdName=w984445tii, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1384144, encodeId=79e0138414497, content=<a href='/topic/show?id=14bb1e503a0' target=_blank style='color:#2F92EE;'>#TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17503, encryptionId=14bb1e503a0, topicName=TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534243, encodeId=21cb15342433d, content=<a href='/topic/show?id=22b3e9887e' target=_blank style='color:#2F92EE;'>#GFR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7988, encryptionId=22b3e9887e, topicName=GFR)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0a812532020, createdName=liuyiping, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=)]
    2015-03-04 zhlpower
  2. [GetPortalCommentsPageByObjectIdResponse(id=1795245, encodeId=e1971e95245cf, content=<a href='/topic/show?id=98f91e05925' target=_blank style='color:#2F92EE;'>#T790M#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17059, encryptionId=98f91e05925, topicName=T790M)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c838337, createdName=zhlpower, createdTime=Wed Mar 04 02:41:00 CST 2015, time=2015-03-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938353, encodeId=c71e193835343, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Tue Dec 16 18:41:00 CST 2014, time=2014-12-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1383051, encodeId=65d11383051e3, content=<a href='/topic/show?id=0c8265e2b3' target=_blank style='color:#2F92EE;'>#EGFR-TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6572, encryptionId=0c8265e2b3, topicName=EGFR-TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6732482, createdName=w984445tii, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1384144, encodeId=79e0138414497, content=<a href='/topic/show?id=14bb1e503a0' target=_blank style='color:#2F92EE;'>#TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17503, encryptionId=14bb1e503a0, topicName=TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534243, encodeId=21cb15342433d, content=<a href='/topic/show?id=22b3e9887e' target=_blank style='color:#2F92EE;'>#GFR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7988, encryptionId=22b3e9887e, topicName=GFR)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0a812532020, createdName=liuyiping, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=)]
    2014-12-16 quxin068
  3. [GetPortalCommentsPageByObjectIdResponse(id=1795245, encodeId=e1971e95245cf, content=<a href='/topic/show?id=98f91e05925' target=_blank style='color:#2F92EE;'>#T790M#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17059, encryptionId=98f91e05925, topicName=T790M)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c838337, createdName=zhlpower, createdTime=Wed Mar 04 02:41:00 CST 2015, time=2015-03-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938353, encodeId=c71e193835343, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Tue Dec 16 18:41:00 CST 2014, time=2014-12-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1383051, encodeId=65d11383051e3, content=<a href='/topic/show?id=0c8265e2b3' target=_blank style='color:#2F92EE;'>#EGFR-TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6572, encryptionId=0c8265e2b3, topicName=EGFR-TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6732482, createdName=w984445tii, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1384144, encodeId=79e0138414497, content=<a href='/topic/show?id=14bb1e503a0' target=_blank style='color:#2F92EE;'>#TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17503, encryptionId=14bb1e503a0, topicName=TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534243, encodeId=21cb15342433d, content=<a href='/topic/show?id=22b3e9887e' target=_blank style='color:#2F92EE;'>#GFR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7988, encryptionId=22b3e9887e, topicName=GFR)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0a812532020, createdName=liuyiping, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1795245, encodeId=e1971e95245cf, content=<a href='/topic/show?id=98f91e05925' target=_blank style='color:#2F92EE;'>#T790M#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17059, encryptionId=98f91e05925, topicName=T790M)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c838337, createdName=zhlpower, createdTime=Wed Mar 04 02:41:00 CST 2015, time=2015-03-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938353, encodeId=c71e193835343, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Tue Dec 16 18:41:00 CST 2014, time=2014-12-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1383051, encodeId=65d11383051e3, content=<a href='/topic/show?id=0c8265e2b3' target=_blank style='color:#2F92EE;'>#EGFR-TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6572, encryptionId=0c8265e2b3, topicName=EGFR-TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6732482, createdName=w984445tii, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1384144, encodeId=79e0138414497, content=<a href='/topic/show?id=14bb1e503a0' target=_blank style='color:#2F92EE;'>#TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17503, encryptionId=14bb1e503a0, topicName=TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534243, encodeId=21cb15342433d, content=<a href='/topic/show?id=22b3e9887e' target=_blank style='color:#2F92EE;'>#GFR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7988, encryptionId=22b3e9887e, topicName=GFR)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0a812532020, createdName=liuyiping, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=)]
    2014-06-02 lsj628
  5. [GetPortalCommentsPageByObjectIdResponse(id=1795245, encodeId=e1971e95245cf, content=<a href='/topic/show?id=98f91e05925' target=_blank style='color:#2F92EE;'>#T790M#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17059, encryptionId=98f91e05925, topicName=T790M)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c838337, createdName=zhlpower, createdTime=Wed Mar 04 02:41:00 CST 2015, time=2015-03-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938353, encodeId=c71e193835343, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Tue Dec 16 18:41:00 CST 2014, time=2014-12-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1383051, encodeId=65d11383051e3, content=<a href='/topic/show?id=0c8265e2b3' target=_blank style='color:#2F92EE;'>#EGFR-TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=6572, encryptionId=0c8265e2b3, topicName=EGFR-TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6732482, createdName=w984445tii, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1384144, encodeId=79e0138414497, content=<a href='/topic/show?id=14bb1e503a0' target=_blank style='color:#2F92EE;'>#TKI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17503, encryptionId=14bb1e503a0, topicName=TKI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b73f484, createdName=lsj628, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534243, encodeId=21cb15342433d, content=<a href='/topic/show?id=22b3e9887e' target=_blank style='color:#2F92EE;'>#GFR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7988, encryptionId=22b3e9887e, topicName=GFR)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0a812532020, createdName=liuyiping, createdTime=Mon Jun 02 12:41:00 CST 2014, time=2014-06-02, status=1, ipAttribution=)]
    2014-06-02 liuyiping

相关资讯

ASCO 2014:类美坦素偶联物靶向治疗结肠癌的临床前评价

摘要号:#3048 作者:Feng Liang,德克萨斯理工大学生命科学中心药学;姚航平,浙江大学医学部 标题:抗酪氨酸激酶受体RON的抗体药物——类美坦素偶联物 (anti-RON ADC)靶向治疗结肠癌的临床前评价 背景:受体酪氨酸激酶RON是影响肿瘤发生的关键,经证实也是靶向药物治疗的关键靶点。本文中我们报道了抗RON抗体的mAbZt/g4-maytan

ASCO 2014:索凡替尼的研磨制剂治疗晚期实体瘤的Ⅰ期临床试验

摘要号:2615 第一作者:徐建明,军事医学科学院附属307医院 标题:选择性VEGFR/FGFR双重抑制剂索凡替尼治疗晚期实体瘤患者的Ⅰ期临床试验 背景:索凡替尼是以血管细胞内皮生长因子受体 (VEGFR) 和成纤维细胞生长因子受体 (FGFR) 为靶点的口服选择性小分子酪氨酸激酶抑制剂。原成份的Ⅰ期临床试验研究数据已在2013的ASCO会议上有所报道。而其

ASCO 2014:18F-FETNIM PET/CT可无创性评估脑胶质瘤的缺氧程度

摘要号:11100 第一作者:胡曼,山东省肿瘤医院放疗科 标题:18F-氟赤式硝基咪唑 (18F-FETNIM) PET/CT测定的缺氧程度与脑胶质瘤恶性进展的相关性研究 背景:缺氧是人脑胶质瘤的重要生物学特征。PET提供了一种无创性的方法来区分个体肿瘤生物学,并相应的修改治疗方案。PET示踪剂的发展为评估人类肿瘤的缺氧提供了更好的工具。本研究的目的是通过使用

ASCO 2014:NSCLC患者血清循环DNA的EGFR突变检测

摘要号:#11094 第一作者:Zongfei Li,北京协和医院检验科 标题:血清循环DNA的EGFR突变检测 背景:作为EGFR靶向药物之一,EGFR酪氨酸激酶抑制剂(TKI)在NSCLC患者的治疗中发挥着重要作用。EGFR的突变是肿瘤对EGFR-TKI敏感的可靠标记物。本文中,我们评估了血清中循环DNA(ctDNA)中EGFR突变与肿瘤的一致性,并且评估

ASCO 2014:hhpg-19K可预防晚期NSCLC患者化疗的骨髓抑制

摘要号:#9614 第一作者:周彩存,上海同济大学附属肺科医院 标题:聚乙二醇重组人粒细胞刺激因子(hhpg-19K)预防晚期非小细胞肺癌患者化疗骨髓抑制的Ⅲ期研究——一项多中心随机双盲对照Ⅲ期研究 背景:HHPG-19K(19K)是一种长效的聚乙二醇化重组粒细胞集落刺激因子,在每个化疗周期给药一次。该III期研究的目的是调查HHPG-19K作为预防性治疗接受

ASCO 2014:多发肺毛玻璃结节的NSCLC不一致的驱动基因突变的发生率

摘要号:#11068 第一作者:任胜祥,上海市肺科医院肿瘤科 标题:多发肺毛玻璃结节的NSCLC不一致的驱动基因突变的发生率 背景:在各种恶性肿瘤包括非小细胞肺癌中都已经发现了Intertumor异质性。与肺外转移相比,多肺结节患者具有显著较高的异质性。本研究的目标是在有多个肺内毛玻璃结节(GGNs)的非小细胞肺癌(NSCLC)患者中,比较已知的驱动突变的分布