Nat Med:转移性乳腺癌中Durvalumab与维持化疗的疗效比较

2021-01-21 xiaozeng MedSci原创

乳腺癌包括三种主要的分子亚型,即Her2过表达、激素受体阳性(HR+)和三阴性乳腺癌(TNBC)。 HR+和Her2过表达的转移性乳腺癌(mBCs)目前可通过靶向疗法(内分泌疗法,CDK4/6抑制剂和

乳腺癌包括三种主要的分子亚型,即Her2过表达、激素受体阳性(HR+)和三阴性乳腺癌(TNBC)。 HR+和Her2过表达的转移性乳腺癌(mBCs)目前可通过靶向疗法(内分泌疗法,CDK4/6抑制剂和Her2抑制剂)进行转化治疗。

抗PD-L1抗体能够抑制PD1介导的免疫抑制信号转导。既往的多项II期临床试验显示,部分mBC患者可从这些免疫疗法中获益。最近的一项化疗与抗PD-L1抗体联合使用的III期试验显示,对转移性TNBC患者的无进展生存期(PFS)具有中等疗效。然而,目前尚不清楚在转移性乳腺癌患者中抗PD-L1单药抗体作为维持疗法的功效。


该研究报告了一项II期随机试验SAFIR02-BREAST IMMUNO的结果和生物标志物分析,该试验比较了抗PD-L1抗体(durvalumab,度伐利尤单抗)与Her2阴性mBC患者的维持化疗之间的效果。

Kaplan-Meier分析患者的无进程生存期和整体生存率

该研究主要招募了Her2阴性的转移性乳腺癌患者病例,患者在经过6至8个化疗周期后疾病仍未出现进展。共199名患者被随机分为durvalumab组和维持化疗组。研究显示,durvalumab并不能改善患者的无进展生存期以及整体生存率(OS)。


在一项探索性亚组分析中,durvalumab能够改善三阴性乳腺癌患者的OS。探索性分析显示,PD-L1+TNBC患者(n = 32)的死亡风险比(HR)为0.37,而PD-L1- TNBC患者(n = 29)为0.49。TNBC患者的探索性分析显示,具有CD274基因增益/扩增的患者(n = 23)的durvalumab功效(OS)HR为0.18。而CD274基因正常/丢失的患者(n = 32)的HR为1.12。

Kaplan-Meier分析PD-L1的表达对TNBC患者总生存率的影响

淋巴细胞(CD8、FoxP3和CD103表达)浸润和同源重组缺陷的肿瘤并不能通过探索性分析预测对durvalumab的敏感性。由于只有一名患者出现种系BRCA突变,因此该发现应谨慎解释。


总而言之,该研究结果为评估TNBC患者维持治疗中durvalumab的单药治疗提供了依据。探索性分析确定了CD274基因的扩增为潜在的敏感性生物标志物。在激素受体阳性和Her2阴性的患者中,维持化疗比durvalumab更有效。


原始出处:

Bachelot, T., Filleron, T., Bieche, I. et al. Durvalumab compared to maintenance chemotherapy in metastatic breast cancer: the randomized phase II SAFIR02-BREAST IMMUNO trial. Nat Med (18 January 2021).

 

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    2021-02-11 snf701207
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    2021-12-04 liye789132251
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    2021-01-26 daisy-422

    期待更好的结果

    0

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    2021-01-22 lifefamily

    #TNBC#患者#维持治疗##Durvalumab#的单药,在激素受体阳性和Her2阴性的患者中,维持化疗比durvalumab更有效。这需要进一步研究!

    0

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    2021-01-22 内科新手

    谢谢梅斯提供这么好的信息,学到很多

    0

  8. [GetPortalCommentsPageByObjectIdResponse(id=1912521, encodeId=9bfb1912521d1, content=<a href='/topic/show?id=4de7112046c' target=_blank style='color:#2F92EE;'>#mAb#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11204, encryptionId=4de7112046c, topicName=mAb)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=25e7304, createdName=snf701207, createdTime=Thu Feb 11 16:54:10 CST 2021, time=2021-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1884921, encodeId=70a91884921df, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Dec 04 03:54:10 CST 2021, time=2021-12-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=920083, encodeId=8754920083d5, content=期待更好的结果, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83erKxFhGouZU0Yb0lpe15aXJ8wfM3JNnKd7wExtUwZXGMicwDJQOfIEJ7azEyicbbwvwIQ6oOHoYEKRA/132, createdBy=f0ee2175800, createdName=daisy-422, createdTime=Tue Jan 26 18:53:25 CST 2021, time=2021-01-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1386694, encodeId=7bb9138669400, content=<a href='/topic/show?id=f08293399f9' target=_blank style='color:#2F92EE;'>#转移性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93399, encryptionId=f08293399f9, topicName=转移性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1ac22500003, createdName=1249842em09(暂无昵称), createdTime=Sat Jan 23 13:54:10 CST 2021, time=2021-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1610868, encodeId=597c1610868f0, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Sat Jan 23 13:54:10 CST 2021, time=2021-01-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=919023, encodeId=d87191902315, content=<a href='/topic/show?id=a22d1e57696' target=_blank style='color:#2F92EE;'>#TNBC#</a>患者<a href='/topic/show?id=4012e904074' target=_blank style='color:#2F92EE;'>#维持治疗#</a>中<a href='/topic/show?id=a9ba633888' target=_blank style='color:#2F92EE;'>#Durvalumab#</a>的单药,在激素受体阳性和Her2阴性的患者中,维持化疗比durvalumab更有效。这需要进一步研究!, beContent=null, objectType=article, channel=null, level=null, likeNumber=175, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17576, encryptionId=a22d1e57696, topicName=TNBC), TopicDto(id=79040, encryptionId=4012e904074, topicName=维持治疗), TopicDto(id=6338, encryptionId=a9ba633888, topicName=Durvalumab)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=lifefamily, createdTime=Fri Jan 22 16:11:44 CST 2021, time=2021-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1032773, encodeId=6c201032e7358, content=谢谢梅斯提供这么好的信息,学到很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=内科新手, createdTime=Fri Jan 22 01:54:10 CST 2021, time=2021-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=918865, encodeId=59f9918865b8, content=挺有意思, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2d434691732, createdName=475455347, createdTime=Thu Jan 21 23:47:58 CST 2021, time=2021-01-21, status=1, ipAttribution=)]
    2021-01-21 475455347

    挺有意思

    0

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