Lancet Oncol:乳腺癌患者的希望 新药Palbociclib疗效获突破

2014-12-17 张嘉良译 MedSci原创

近期一个突破性的研究结果,为晚期乳腺癌患者带来了新的希望。来自UCLA Jonsson综合癌症中心的研究人员所发表的最终临床试验结果显示,接受试验药物Palbociclib治疗的晚期乳腺癌患者,其癌症的无恶化时间(即无进展生存期)有效地增加了一倍。由辉瑞公司发现并研究开发的新药Palbociclib,是以关键蛋白质家族(CDK4/6)为靶点,能够阻止细胞生长分裂。多年的II期研究结果显示,对比

近期一个突破性的研究结果,为晚期乳腺癌患者带来了新的希望。来自UCLA Jonsson综合癌症中心的研究人员所发表的最终临床试验结果显示,接受试验药物Palbociclib治疗的晚期乳腺癌患者,其癌症的无恶化时间(即无进展生存期)有效地增加了一倍。

由辉瑞公司发现并研究开发的新药Palbociclib,是以关键蛋白质家族(CDK4/6)为靶点,能够阻止细胞生长分裂。多年的II期研究结果显示,对比单独接受标准抗雌激素治疗(Letrozole),联合Letrozole与Palbociclib治疗能够显着增加雌激素受体阳性(ER+)及HER2阴性(HER2-)的晚期乳腺癌患者的无进展生存期。





该研究的主要作者,加州大学洛杉矶分校医学副教授Richard Finn 博士表示:“我们基本上阻止细胞增殖,导致肿瘤细胞停止生长。” 该研究结果在线发表在最新一期的The Lancet Oncology杂志上。

揭示Palbociclib的威力

该项研究的源头可追溯到2007年,当时Finn和肿瘤研究先驱、Revlon/UCLA 妇女肿瘤研究计划带头人Slamon博士,在一个重要会议上讨论辉瑞在Palbociclib和其他的实验性药物研究的进程。

该药物在一系列人类乳腺癌细胞中的临床前测试工作表现出非常令人鼓舞的结果,特别是对雌激素受体阳性(ER+)的癌细胞。由Finn带领的辉瑞公司临床研究团队因此与Slamon建立并带头的实验室工作合作,在加州大学洛杉矶分校转化肿瘤学研究实验室对该药进行进一步的研究。“我们对Palbociclib进行研究时发现,乳腺癌中CDK4/6信号的抑制剂在既往并没有被发现过,或者一直存在却未引起人们注意,”Slamon博士表示,“这是真正让我们走到正道上的导火索。”

在I期临床研究支持该药的安全性以后,II期临床研究随即在165名绝经后ER+及HER2-的乳腺癌患者中进行。II期研究结果显示,接受Palbociclib联合Letrozole治疗的患者无进展生存期为20.2(95%置信区间为13.8–27.5)个月,而单用Letrozole治疗的患者无进展生存期则为 10.2 (95%置信区间为5.7–12.6)个月 。PFS结果表明,Palbociclib联合Letrozole能够减少疾病进展51%的风险。

“真正值得注意的是,我们增加了一倍的中位数无进展生存期,” Finn说,”随着Palbociclib的加入,PFS有效地增加了一倍。这样的结果不是经常能够在癌症的治疗药物中看到的。”研究结果发现,超过80%ER+的转移性乳腺癌患者在这种治疗中获益。这种药并没有传统化疗的副作用,如感染。尽管该药也能够导致较低的白血细胞计数,但这比较容易处理。

III期的国际临床药物试验,正由Finn、Slamon与辉瑞合作在660 名ER+及HER2-的晚期乳腺癌患者中进行。因为该药在许多患者早期测试中表现出显着且持久的疗效,FDA在2013年底对Palbociclib的“突破性疗效”予以认同。

给予患者第二次生命的机会

78岁的Gloria Zollar是五个孩子的母亲。在2010年八月,当她在加州大学洛杉矶分校被肿瘤医生发现她的晚期乳腺癌已经扩散到她的骨头中时,加入的II期临床试验。她从那时起一直在治疗,历时超过四年。

但仅一年后,医生发现她的肿瘤已经停止进展,使得Zollar能够保持活跃并继续打高尔夫。“我现在处于缓解期,每天我都感谢上帝,因为我还活着,能够看到我的曾孙,花些时间和他们在一起,”佐拉说。

当2013年末FDA认可palbociclib这种“突破性”的治疗效果的时候,Zollar希望该药物能够提供其他患者对抗这种致命疾病的机会。“我非常高兴其他的女性患者能够像参加试验的我们一样,获得生命的第二次机会。”

原始出处:

Richard S Finn, John P Crown, Istvan Lang, Katalin Boer, Igor M Bondarenko, Sergey O Kulyk, Johannes Ettl, Ravindranath Patel, Tamas Pinter, Marcus Schmidt,Yaroslav Shparyk, Anu R Thummala, Nataliya L Voytko, Camilla Fowst, Xin Huang,Sindy T Kim, Sophia Randolph, Dennis J Slamon. The cyclin-dependent kinase 4/6 inhibitor palbociclib in combination with letrozole versus letrozole alone as first-line treatment of oestrogen receptor-positive, HER2-negative,advanced breast cancer (PALOMA-1/TRIO-18): a randomised phase 2 study.The Lancet Oncology, 2014; DOI: 10.1016/S1470-2045(14)71159-3

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    2015-10-10 howi
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    2014-12-26 minlingfeng
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  4. [GetPortalCommentsPageByObjectIdResponse(id=1827949, encodeId=6525182e94937, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Sat Oct 10 03:56:00 CST 2015, time=2015-10-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1864574, encodeId=b09518645e46d, content=<a href='/topic/show?id=16ce133504e' target=_blank style='color:#2F92EE;'>#Oncol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13350, encryptionId=16ce133504e, topicName=Oncol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b63894, createdName=minlingfeng, createdTime=Fri Dec 26 01:56:00 CST 2014, time=2014-12-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372306, encodeId=d46613e2306e0, content=<a href='/topic/show?id=48cd1369065' target=_blank style='color:#2F92EE;'>#palbociclib#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13690, encryptionId=48cd1369065, topicName=palbociclib)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96d4340, createdName=ysjykql, createdTime=Fri Dec 19 04:56:00 CST 2014, time=2014-12-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1570939, encodeId=be9515e0939b7, content=<a href='/topic/show?id=f42823e48d7' target=_blank style='color:#2F92EE;'>#乳腺癌患者#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23748, encryptionId=f42823e48d7, topicName=乳腺癌患者)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Fri Dec 19 04:56:00 CST 2014, time=2014-12-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13188, encodeId=957c13188b2, content=乳腺癌中CDK4/6信号的抑制剂在既往并没有被发现过,或者一直存在却未引起人们注意,Palbociclib联合Letrozole能够减少疾病进展51%的风险。, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:35:00 CST 2014, time=2014-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13187, encodeId=4eaa1318e43, content=对比单独接受标准抗雌激素治疗(Letrozole),联合Letrozole与Palbociclib治疗能够显着增加雌激素受体阳性(ER+)及HER2阴性(HER2-)的晚期乳腺癌患者的无进展生存期, beContent=null, objectType=article, channel=null, level=null, likeNumber=113, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:33:00 CST 2014, time=2014-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13186, encodeId=926513186a4, content=新药Palbociclib,是以关键蛋白质家族(CDK4/6)为靶点,能够阻止细胞生长分裂,增加了一倍的中位数无进展生存期,, beContent=null, objectType=article, channel=null, level=null, likeNumber=125, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:32:00 CST 2014, time=2014-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13185, encodeId=3e5713185c3, content=接受试验药物Palbociclib治疗的晚期乳腺癌患者,其癌症的无恶化时间(即无进展生存期)有效地增加了一倍,这是晚期乳腺癌患者带来了新的希望 <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:31:00 CST 2014, time=2014-12-17, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1827949, encodeId=6525182e94937, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Sat Oct 10 03:56:00 CST 2015, time=2015-10-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1864574, encodeId=b09518645e46d, content=<a href='/topic/show?id=16ce133504e' target=_blank style='color:#2F92EE;'>#Oncol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13350, encryptionId=16ce133504e, topicName=Oncol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b63894, createdName=minlingfeng, createdTime=Fri Dec 26 01:56:00 CST 2014, time=2014-12-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372306, encodeId=d46613e2306e0, content=<a href='/topic/show?id=48cd1369065' target=_blank style='color:#2F92EE;'>#palbociclib#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13690, encryptionId=48cd1369065, topicName=palbociclib)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96d4340, createdName=ysjykql, createdTime=Fri Dec 19 04:56:00 CST 2014, time=2014-12-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1570939, encodeId=be9515e0939b7, content=<a href='/topic/show?id=f42823e48d7' target=_blank style='color:#2F92EE;'>#乳腺癌患者#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23748, encryptionId=f42823e48d7, topicName=乳腺癌患者)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Fri Dec 19 04:56:00 CST 2014, time=2014-12-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13188, encodeId=957c13188b2, content=乳腺癌中CDK4/6信号的抑制剂在既往并没有被发现过,或者一直存在却未引起人们注意,Palbociclib联合Letrozole能够减少疾病进展51%的风险。, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:35:00 CST 2014, time=2014-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13187, encodeId=4eaa1318e43, content=对比单独接受标准抗雌激素治疗(Letrozole),联合Letrozole与Palbociclib治疗能够显着增加雌激素受体阳性(ER+)及HER2阴性(HER2-)的晚期乳腺癌患者的无进展生存期, beContent=null, objectType=article, channel=null, level=null, likeNumber=113, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:33:00 CST 2014, time=2014-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13186, encodeId=926513186a4, content=新药Palbociclib,是以关键蛋白质家族(CDK4/6)为靶点,能够阻止细胞生长分裂,增加了一倍的中位数无进展生存期,, beContent=null, objectType=article, channel=null, level=null, likeNumber=125, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:32:00 CST 2014, time=2014-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13185, encodeId=3e5713185c3, content=接受试验药物Palbociclib治疗的晚期乳腺癌患者,其癌症的无恶化时间(即无进展生存期)有效地增加了一倍,这是晚期乳腺癌患者带来了新的希望 <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:31:00 CST 2014, time=2014-12-17, status=1, ipAttribution=)]
    2014-12-17 cbp

    乳腺癌中CDK4/6信号的抑制剂在既往并没有被发现过,或者一直存在却未引起人们注意,Palbociclib联合Letrozole能够减少疾病进展51%的风险。

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1827949, encodeId=6525182e94937, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Sat Oct 10 03:56:00 CST 2015, time=2015-10-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1864574, encodeId=b09518645e46d, content=<a href='/topic/show?id=16ce133504e' target=_blank style='color:#2F92EE;'>#Oncol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13350, encryptionId=16ce133504e, topicName=Oncol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b63894, createdName=minlingfeng, createdTime=Fri Dec 26 01:56:00 CST 2014, time=2014-12-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372306, encodeId=d46613e2306e0, content=<a href='/topic/show?id=48cd1369065' target=_blank style='color:#2F92EE;'>#palbociclib#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13690, encryptionId=48cd1369065, topicName=palbociclib)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96d4340, createdName=ysjykql, createdTime=Fri Dec 19 04:56:00 CST 2014, time=2014-12-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1570939, encodeId=be9515e0939b7, content=<a href='/topic/show?id=f42823e48d7' target=_blank style='color:#2F92EE;'>#乳腺癌患者#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23748, encryptionId=f42823e48d7, topicName=乳腺癌患者)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Fri Dec 19 04:56:00 CST 2014, time=2014-12-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13188, encodeId=957c13188b2, content=乳腺癌中CDK4/6信号的抑制剂在既往并没有被发现过,或者一直存在却未引起人们注意,Palbociclib联合Letrozole能够减少疾病进展51%的风险。, beContent=null, objectType=article, channel=null, level=null, likeNumber=106, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:35:00 CST 2014, time=2014-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13187, encodeId=4eaa1318e43, content=对比单独接受标准抗雌激素治疗(Letrozole),联合Letrozole与Palbociclib治疗能够显着增加雌激素受体阳性(ER+)及HER2阴性(HER2-)的晚期乳腺癌患者的无进展生存期, beContent=null, objectType=article, channel=null, level=null, likeNumber=113, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:33:00 CST 2014, time=2014-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13186, encodeId=926513186a4, content=新药Palbociclib,是以关键蛋白质家族(CDK4/6)为靶点,能够阻止细胞生长分裂,增加了一倍的中位数无进展生存期,, beContent=null, objectType=article, channel=null, level=null, likeNumber=125, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:32:00 CST 2014, time=2014-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13185, encodeId=3e5713185c3, content=接受试验药物Palbociclib治疗的晚期乳腺癌患者,其癌症的无恶化时间(即无进展生存期)有效地增加了一倍,这是晚期乳腺癌患者带来了新的希望 <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Wed Dec 17 19:31:00 CST 2014, time=2014-12-17, status=1, ipAttribution=)]
    2014-12-17 cbp

    对比单独接受标准抗雌激素治疗(Letrozole),联合Letrozole与Palbociclib治疗能够显着增加雌激素受体阳性(ER+)及HER2阴性(HER2-)的晚期乳腺癌患者的无进展生存期

    0

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    2014-12-17 cbp

    新药Palbociclib,是以关键蛋白质家族(CDK4/6)为靶点,能够阻止细胞生长分裂,增加了一倍的中位数无进展生存期,

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    2014-12-17 cbp

    接受试验药物Palbociclib治疗的晚期乳腺癌患者,其癌症的无恶化时间(即无进展生存期)有效地增加了一倍,这是晚期乳腺癌患者带来了新的希望

    0

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