JCO:T-DM1联合帕妥珠单抗用于晚期HER2阳性乳腺癌靶向治疗

2014-05-20 MedSci MedSci原创

临床肿瘤学杂志(JCO)发布的一项IIa期试验中,美国印第安纳大学的Miller KD教授评估了HER2阳性的局限性晚期或转移性乳腺癌患者应用T-DM1(trastuzumab emtansine)联合帕妥珠单抗进行HER2靶向治疗的效果。 与曲妥单抗不同,帕妥珠单抗在不同的位点结合HER2,能阻止HER2与其他人类表皮生长因子受体发生异源二聚化。这一联合治疗方案在乳腺癌的一线、二线治疗或二线

临床肿瘤学杂志(JCO)发布的一项IIa期试验中,美国印第安纳大学的Miller KD教授评估了HER2阳性的局限性晚期或转移性乳腺癌患者应用T-DM1(trastuzumab emtansine)联合帕妥珠单抗进行HER2靶向治疗的效果。

与曲妥单抗不同,帕妥珠单抗在不同的位点结合HER2,能阻止HER2与其他人类表皮生长因子受体发生异源二聚化。这一联合治疗方案在乳腺癌的一线、二线治疗或二线以上治疗中有很高的活性,并且没有出现相关的药物安全症状。
在研究中,64例HER2阳性的局限性晚期或转移性乳腺癌的患者应用T-DM1 3.6 mg/kg+帕妥珠单抗(首次剂量840mg,以后每3周应用420mg),其中43位患者进行了二线或二线以上的治疗,21位患者进行一线治疗。主要研究终点是研究者们评估的客观缓解率(ORR)。


应用一线治疗的患者中,既往应用过曲妥珠单抗(86%)、紫杉醇(76%)和蒽环类(62%)进行新辅助或辅助治疗。应用二线或二线以上的治疗的患者中,既往应用过(中位数为)9种非内分泌治疗药物,包括曲妥珠单抗(100%)、紫杉醇(95%)、蒽环类(79%)、卡培他滨(79%)和拉帕替尼(72%)。

总的客观缓解率为41%,应用二线或二线以上的治疗的患者的客观缓解率为33%,一线治疗的患者的客观缓解率为57%。中位无进展生存期为6.6个月,应用二线或二线以上的治疗的患者中位无进展生存期为5.5个月,一线治疗的患者中位无进展生存期为7.7个月。



患者无进展生存(PFS)的km曲线

总体持续缓解时间为13.9个月,应用二线或二线以上治疗的患者的持续缓解时间为11.8个月,一线治疗患者的持续缓解时间为13.9个月。总体完全缓解率(CR)为5%,部分缓解率(PR)为36%,临床获益率为50%。生物标志物分析显示,HER2 mRNA超过平均水平的患者客观缓解率较高(44%vs33%)。

最常见的不良事件是疲劳(61%),恶心(50%)和腹泻(39%)。最常见的3级或3级以上的不良事件是血小板减少(13%)、疲劳(11%)、ALT升高(9%)和AST升高(9%)。其中一位患者在终止给药后出现左心室射血分数<40%。

研究者们推断,T-DM1+帕妥珠单抗可以联合、足量应用,没有出现意料之外的毒性反应。晚期转移性乳腺癌患者和一线治疗的患者的初步疗效需要进一步研究加以确认。

原始出处:

Miller KD, Diéras V, Harbeck N, Andre F, Mahtani RL, Gianni L, Albain KS, Crivellari D, Fang L, Michelson G, de Haas SL, Burris HA.Phase IIa Trial of Trastuzumab Emtansine With Pertuzumab for Patients With Human Epidermal Growth Factor Receptor 2-Positive, Locally Advanced, or Metastatic Breast Cancer.J Clin Oncol. 2014 May 10;32(14):1437-44.

相关文献:Giordano SH, Temin S, Kirshner JJ, Chandarlapaty S, Crews JR, Davidson NE, Esteva FJ, Gonzalez-Angulo AM, Krop I, Levinson J, Lin NU, Modi S, Patt DA, Perez EA, Perlmutter J, Ramakrishna N, Winer EP.Systemic Therapy for Patients With Advanced Human Epidermal Growth Factor Receptor 2-Positive Breast Cancer: American Society of Clinical Oncology Clinical Practice Guideline.J Clin Oncol. 2014 May 5

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    2018-04-25 1e145228m78(暂无匿称)

    学习了.谢谢作者分享!

    0

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    2015-01-22 lidong40
  3. [GetPortalCommentsPageByObjectIdResponse(id=309036, encodeId=d0993090369a, content=学习了.谢谢作者分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3xJXLtMtt5B40XXuPjn9xn1rBhrM6fHLkX1hI86ZoWoPJkgDkZuJNKkBfBHOcRd1fAdezg7JlHNOokohdAp3WkI/0, createdBy=32c81964262, createdName=1e145228m78(暂无匿称), createdTime=Wed Apr 25 06:30:08 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1891128, encodeId=1d601891128a9, content=<a href='/topic/show?id=25b0102e2df' target=_blank style='color:#2F92EE;'>#JCO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10272, encryptionId=25b0102e2df, topicName=JCO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6da1120, createdName=lidong40, createdTime=Thu Jan 22 06:19:00 CST 2015, time=2015-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1308465, encodeId=4247130846507, content=<a href='/topic/show?id=240f8e3234' target=_blank style='color:#2F92EE;'>#HER2阳性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8732, encryptionId=240f8e3234, topicName=HER2阳性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8409354, createdName=闆锋旦, createdTime=Thu May 22 13:19:00 CST 2014, time=2014-05-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=9543, encodeId=7c10954328, content=可能很快进入指南,成为标准治疗方案, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=lovetcm, createdTime=Tue May 20 22:31:00 CST 2014, time=2014-05-20, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=309036, encodeId=d0993090369a, content=学习了.谢谢作者分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3xJXLtMtt5B40XXuPjn9xn1rBhrM6fHLkX1hI86ZoWoPJkgDkZuJNKkBfBHOcRd1fAdezg7JlHNOokohdAp3WkI/0, createdBy=32c81964262, createdName=1e145228m78(暂无匿称), createdTime=Wed Apr 25 06:30:08 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1891128, encodeId=1d601891128a9, content=<a href='/topic/show?id=25b0102e2df' target=_blank style='color:#2F92EE;'>#JCO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10272, encryptionId=25b0102e2df, topicName=JCO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6da1120, createdName=lidong40, createdTime=Thu Jan 22 06:19:00 CST 2015, time=2015-01-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1308465, encodeId=4247130846507, content=<a href='/topic/show?id=240f8e3234' target=_blank style='color:#2F92EE;'>#HER2阳性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8732, encryptionId=240f8e3234, topicName=HER2阳性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8409354, createdName=闆锋旦, createdTime=Thu May 22 13:19:00 CST 2014, time=2014-05-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=9543, encodeId=7c10954328, content=可能很快进入指南,成为标准治疗方案, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=lovetcm, createdTime=Tue May 20 22:31:00 CST 2014, time=2014-05-20, status=1, ipAttribution=)]
    2014-05-20 lovetcm

    可能很快进入指南,成为标准治疗方案

    0