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ASCO:全球研究建立以风险分级为依据的结肠癌术后个体化化疗新标准

2017-06-05 Ryy 肿瘤资讯

全球研究建立以风险分级为依据的结肠癌术后个体化化疗新标准

ASCO观点

ASCO专家Nancy Baxter博士评论:“这项研究表明,越少越好。我们可以减少许多结肠癌患者由于额外不必要的3个月化疗所带来的不良反应。该研究是通过细化现有治疗提高患者的获益的完美例证。”

芝加哥——淋巴结阳性结肠癌(III期)术后,部分患者只需要目前标准治疗疗程的一半即可。包含6项临床研究12800例患者的汇总分析显示,对于相对低复发风险的患者来说,3个月的化疗与6个月化疗的疗效相当,但不良反应更少,尤其是神经毒性。该研究从5000余篇摘要中脱颖而出,被视为最具影响患者治疗潜力的摘要之一,数据在ASCO年会全体会议上展示。

结肠癌术后化疗可以降低复发风险。自2004年开始,术后标准辅助化疗方案(FOLFOX 或 CAPOX),疗程6个月。

本研究汇总了来自北美、欧洲和亚洲的6项研究数据,目的是评价3个月的辅助化疗是否与6个月的化疗等效。虽然主要研究终点没有达到统计学差异,与6个月相比,3个月化疗疗程3年无疾病生存率减低了1% (74.6% vs. 75.5%)。对于低复发风险患者而言(占总研究人群60%),这种差异更小(83.1% vs. 83.3%)。

“我们的发现适用于全球每年40万结肠癌患者。这些患者中60%是低复发风险的,对他们来说,3个月的化疗疗程可能成为新的治疗标准。”主要研究者梅奥癌症中心肿瘤学家Axel Grothey博士说。“对于高复发风险患者,需要根据患者意愿、年龄、化疗耐受性等因素与他们的医生进一步探讨缩短化疗疗程的可行性。”

化疗方案中奥沙利铂的主要不良反应为神经毒性,可以导致永久性麻木、针刺样感及疼痛。患者接受奥沙利铂时间越长,发生严重及持久神经损伤的机会越大。3月化疗疗程出现神经损伤(麻木/手足刺痛)明显少于6月疗程(FOLFOX 15% vs. 45% ;CAPOX 17% vs. 48%)。

“很多化疗不良反应会随着时间的推移好转,比如脱发,但神经损伤对于有些患者而言会伴随终生。” Grothey博士说。





关于研究

这是一项前瞻性、预计划的汇总分析,数据来自6项目前在12个国家进行的III期临床研究。项目成立超过10年,也称为IDEA。指导委员会监督研究设计,独立统计中心审核6项临床研究的结果。研究仅接受公共资金支持。

“我们需要较大的大样本量来回答研究问题,但在2007年该研究设计之初,在世界任何地方,单一研究很难达到这样的样本量。” Grothey博士说。“在结肠癌领域,12834例患者是目前最大的合作数据。”

主要研究结果

患者中位随访时间39m。对所有患者而言,3年无疾病生存率(DFS)3m疗程组略低(74.6% vs. 75.5%)。化疗方案影响了两组3年DFS的差别(FOLFOX 73.6% vs. 76% ;CAPOX 75.9% vs. 74.8%),但差别相对较小。

低风险结肠癌患者(1-3个淋巴结阳性并且没有侵透肠壁),3m与6m组3年DFS几乎相同(83.1% vs. 83.3%)。

具有临床意义的神经损伤(2度及其以上)与化疗方案的类型有关,但6m组的发生率较高(6mvs. 3m:FOLFOX 45% vs. 15% ;CAPOX 48% vs. 17%)。

“除了神经损伤,延长化疗还可以导致更多的腹泻、乏力,更多的就诊、抽血及脱离工作及社交时间的增加。” Grothey博士说。

“这项工作非常重要,它将影响很多患者对生活的希望,也将指导我们为结肠癌患者提供个体化的治疗。虽然对于医生和患者来说‘能否减少疗程?’是个非常重要的问题,但针对该问题研究几乎没有。因为制药企业对这些问题不感兴趣,联邦政府对这些研究的支持至关重要。” Baxter博士说。

摘要

Abstract LBA1:6项关于III期结肠癌(CC)患者辅助奥沙利铂为基础化疗方案疗程(3m vs . 6m)的前瞻性汇总分析:IDEA协作

背景

自2004年以来,III期CC患者术后辅助化疗含奥沙利铂(oxali)方案,标准治疗疗程为6个月(m)。由于oxali具有累积神经毒性,缩短治疗疗程可以减少不良反应并节省医疗费用。

方法

前瞻性、预先计划汇总分析,共纳入6项随机III期临床研究(SCOT, TOSCA, Alliance/SWOG 80702, IDEA France (GERCOR/PRODIGE), ACHIEVE, HORG)。全部为评价3m对比6m(ref)辅助FOLFOX/XELOX的非劣效性研究。主要研究终点为无疾病生存(DFS)(定义为从入组至疾病复发时间)。

结果

自2007年6月至2015年12月,共纳入12个国家12834例患者。分期:T1-2 13%, T3 66%, T4 21%;  N2 28%。接受XELOX方案化疗的占40%。6m疗程3度以上神经毒性更高(6m v 3m: FOLFOX 16 v 3%;XELOX 9 v 3%, p<0.0001))。中位随访时间39m,共有3263例DFS事件。总体而言3年DFS率74.6% (3m) 及75.5% (6m),预计DFS HR =1.07 (95%CI, 1.00-1.15)。FOLFOX 3m v 6m DFS HR= 1.16 (95%CI, 1.06-1.26) ,XELOX HR=0.95 (95% CI, 0.85-1.06) 。T1-3 N1 HR=1.01 (95%CI, 0.90-1.12) ,T4或N2 HR=1.12 (95%CI, 1.03-1.23)。

结论

虽然整体队列没有达到非劣效,但对于XELOX 方案支持3m对比6m达到了非劣效。每项IDEA研究中接受XELOX 方案患者比例变化不同(0 to 75%),每项研究中都观察到化疗方案类型对于结果的影响。T1-3 N1分期也显示出3m对比6m达到了非劣效。这些数据为讨论风险分层与个体化辅助化疗获益提供了基本框架。

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  4. [GetPortalCommentsPageByObjectIdResponse(id=1938693, encodeId=a32a1938693a8, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, 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=Sat Dec 09 20:24:00 CST 2017, time=2017-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1935249, encodeId=7df519352499a, content=<a href='/topic/show?id=ab995841480' target=_blank style='color:#2F92EE;'>#新标准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58414, encryptionId=ab995841480, topicName=新标准)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4736501, createdName=xiaoyang_ambs, createdTime=Sun Jun 25 02:24:00 CST 2017, time=2017-06-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1435343, encodeId=a9b71435343f2, content=<a href='/topic/show?id=9a5c212e88f' target=_blank style='color:#2F92EE;'>#个体化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21278, encryptionId=9a5c212e88f, topicName=个体化)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Wed Jun 07 12:24:00 CST 2017, time=2017-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=207205, encodeId=96bf20e20583, content=学习啦,获得满满的收获, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDcohE5MKT1FYlH69x7qib45icLgBDMANxIiauEA62nuQI1eE8Ez2rO3yqOkRLH6ha6Lw0x1IBRm0N7g/0, createdBy=e1ff2033933, createdName=187****0626, createdTime=Tue Jun 06 08:28:16 CST 2017, time=2017-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=207001, encodeId=7c4620e00147, content=学习了分享了, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=387d1660055, createdName=dhzzm, createdTime=Mon Jun 05 23:04:44 CST 2017, time=2017-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=206982, encodeId=457c2069829b, content=学习了谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib06iaV3D9Tg5Kzuf9u71gZhPYMiajRtENwicoAABeQtfXOlic8ibhYSy6DvJZWUDVtjRvTfqBffr1XJ6JLtFB5kHicthl/0, createdBy=d41c2055892, createdName=184****9840, createdTime=Mon Jun 05 22:33:12 CST 2017, time=2017-06-05, status=1, ipAttribution=)]
    2017-06-06 187****0626

    学习啦,获得满满的收获

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1938693, encodeId=a32a1938693a8, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, 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=Sat Dec 09 20:24:00 CST 2017, time=2017-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1935249, encodeId=7df519352499a, content=<a href='/topic/show?id=ab995841480' target=_blank style='color:#2F92EE;'>#新标准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58414, encryptionId=ab995841480, topicName=新标准)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4736501, createdName=xiaoyang_ambs, createdTime=Sun Jun 25 02:24:00 CST 2017, time=2017-06-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1435343, encodeId=a9b71435343f2, content=<a href='/topic/show?id=9a5c212e88f' target=_blank style='color:#2F92EE;'>#个体化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21278, encryptionId=9a5c212e88f, topicName=个体化)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Wed Jun 07 12:24:00 CST 2017, time=2017-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=207205, encodeId=96bf20e20583, content=学习啦,获得满满的收获, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDcohE5MKT1FYlH69x7qib45icLgBDMANxIiauEA62nuQI1eE8Ez2rO3yqOkRLH6ha6Lw0x1IBRm0N7g/0, createdBy=e1ff2033933, createdName=187****0626, createdTime=Tue Jun 06 08:28:16 CST 2017, time=2017-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=207001, encodeId=7c4620e00147, content=学习了分享了, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=387d1660055, createdName=dhzzm, createdTime=Mon Jun 05 23:04:44 CST 2017, time=2017-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=206982, encodeId=457c2069829b, content=学习了谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib06iaV3D9Tg5Kzuf9u71gZhPYMiajRtENwicoAABeQtfXOlic8ibhYSy6DvJZWUDVtjRvTfqBffr1XJ6JLtFB5kHicthl/0, createdBy=d41c2055892, createdName=184****9840, createdTime=Mon Jun 05 22:33:12 CST 2017, time=2017-06-05, status=1, ipAttribution=)]
    2017-06-05 dhzzm

    学习了分享了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1938693, encodeId=a32a1938693a8, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, 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=Sat Dec 09 20:24:00 CST 2017, time=2017-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1935249, encodeId=7df519352499a, content=<a href='/topic/show?id=ab995841480' target=_blank style='color:#2F92EE;'>#新标准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58414, encryptionId=ab995841480, topicName=新标准)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4736501, createdName=xiaoyang_ambs, createdTime=Sun Jun 25 02:24:00 CST 2017, time=2017-06-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1435343, encodeId=a9b71435343f2, content=<a href='/topic/show?id=9a5c212e88f' target=_blank style='color:#2F92EE;'>#个体化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21278, encryptionId=9a5c212e88f, topicName=个体化)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Wed Jun 07 12:24:00 CST 2017, time=2017-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=207205, encodeId=96bf20e20583, content=学习啦,获得满满的收获, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDcohE5MKT1FYlH69x7qib45icLgBDMANxIiauEA62nuQI1eE8Ez2rO3yqOkRLH6ha6Lw0x1IBRm0N7g/0, createdBy=e1ff2033933, createdName=187****0626, createdTime=Tue Jun 06 08:28:16 CST 2017, time=2017-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=207001, encodeId=7c4620e00147, content=学习了分享了, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=387d1660055, createdName=dhzzm, createdTime=Mon Jun 05 23:04:44 CST 2017, time=2017-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=206982, encodeId=457c2069829b, content=学习了谢谢分享。, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib06iaV3D9Tg5Kzuf9u71gZhPYMiajRtENwicoAABeQtfXOlic8ibhYSy6DvJZWUDVtjRvTfqBffr1XJ6JLtFB5kHicthl/0, createdBy=d41c2055892, createdName=184****9840, createdTime=Mon Jun 05 22:33:12 CST 2017, time=2017-06-05, status=1, ipAttribution=)]
    2017-06-05 184****9840

    学习了谢谢分享。

    0

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