NEJM:高风险患者Bococizumab治疗的心血管功效和安全性如何?

2017-03-19 xing.T MedSci原创

在两项比较PCSK9抑制剂bococizumab和安慰剂的随机试验中,在主要不良心血管事件方面,较低风险的患者中bococizumab没有显著的获益,但在较高风险患者中bococizumab具有显著的临床益处。

Bococizumab是一种人源化单克隆抗体,能够抑制前蛋白转化酶枯草溶菌素9(PCSK9)和降低低密度脂蛋白胆固醇(LDL)水平。近日,顶级医学期刊NEJM上发表了一篇研究文章。研究人员试图评价高血管风险患者的bococizumab疗效。

在两个平行的、LDL胆固醇水平进入标准不同的跨国试验中,在这个联合试验中,研究人员随机分配27438名患者接受bococizumab(剂量为150 mg)或安慰剂皮下注射,每2周一次。该研究的主要终点为非致死性心肌梗死、非致死性卒中、不稳定心绞痛住院、需要紧急血运重建或血管死亡,93%的患者在基线时接受他汀类药物治疗。试验因bococizumab产生抗药抗体且发生率较高赞助商选择终止bococizumab研发而过早停止试验。中位随访时间为10个月。

在治疗后14周,在联合试验中,接受bococizumab治疗的患者LDL胆固醇水平从基础水平平均下降-56%,而安慰剂组为2.9%,组间差异为-59个百分点(P<0.001)和从基线下降的中位数为64.2%(P<0.001)。在风险较低、持续时间较短的试验中(即患者基线LDL胆固醇水平≥70mg/dL [1.8mmol/L]和中位随访时间为7个月),在bococizumab组和安慰剂组发生主要心血管事件的患者为173例(风险比为0.99;95%可信区间[CI],为0.80-1.22;P=0.94)。在风险较高、持续时间较长的试验中(即患者基线LDL胆固醇水平≥100 mg/dL [2.6 mmol/L]和中位随访时间为12个月),发生主要心血管事件的患者分别有179例和224例(风险比为0.79,95% CI为0.65-0.97;P=0.02)。在联合试验中主要终点的风险比为0.88(95%CI为0.76-1.02;P=0.08)。注射部位反应更常见于bococizumab组相比于安慰剂组(10.4% vs. 1.3%,P<0.001)。

由此可见,在两项比较PCSK9抑制剂bococizumab和安慰剂的随机试验中,在主要不良心血管事件方面,较低风险的患者中bococizumab没有显著的获益,但在较高风险患者中bococizumab具有显著的临床益处。

原始出处:


Paul M Ridker, et al. Cardiovascular Efficacy and Safety of Bococizumab in High-Risk Patients. N Engl J Med 2017; http://www.nejm.org/doi/full/10.1056/NEJMoa1701488

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1862009, encodeId=f9de1862009bb, content=<a href='/topic/show?id=a374102813a1' target=_blank style='color:#2F92EE;'>#高风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102813, encryptionId=a374102813a1, topicName=高风险)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f5e185, createdName=zlawrance, createdTime=Fri Jul 07 07:22:00 CST 2017, time=2017-07-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1911826, encodeId=641c191182696, content=<a href='/topic/show?id=4de7112046c' target=_blank style='color:#2F92EE;'>#mAb#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11204, encryptionId=4de7112046c, topicName=mAb)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Thu Oct 12 23:22:00 CST 2017, time=2017-10-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181304, encodeId=4eaa18130437, content=学习了,好文章。, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Mon Mar 20 06:30:54 CST 2017, time=2017-03-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181141, encodeId=04d9181141bf, content=签到学习了很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://q.qlogo.cn/qqapp/1103841572/A3E53E62691178E2F18D7B999FD22131/100, createdBy=f44d2003846, createdName=Chongyang Zhang, createdTime=Sun Mar 19 13:10:35 CST 2017, time=2017-03-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181117, encodeId=26ab18111ea9, content=学习了很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NcXNhUvfhzd2dD8SUAwqrufRiaKMGaaBScoAzEicJJibuu3wCIWWQxoLgS2UOBx1vsPe3faZtAiatc0pTWlS6868zZH/0, createdBy=0a231960988, createdName=胖红, createdTime=Sun Mar 19 12:05:53 CST 2017, time=2017-03-19, status=1, ipAttribution=)]
    2017-10-12 一叶知秋
  3. [GetPortalCommentsPageByObjectIdResponse(id=1862009, encodeId=f9de1862009bb, content=<a href='/topic/show?id=a374102813a1' target=_blank style='color:#2F92EE;'>#高风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102813, encryptionId=a374102813a1, topicName=高风险)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f5e185, createdName=zlawrance, createdTime=Fri Jul 07 07:22:00 CST 2017, time=2017-07-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1911826, encodeId=641c191182696, content=<a href='/topic/show?id=4de7112046c' target=_blank style='color:#2F92EE;'>#mAb#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11204, encryptionId=4de7112046c, topicName=mAb)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Thu Oct 12 23:22:00 CST 2017, time=2017-10-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181304, encodeId=4eaa18130437, content=学习了,好文章。, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Mon Mar 20 06:30:54 CST 2017, time=2017-03-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181141, encodeId=04d9181141bf, content=签到学习了很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://q.qlogo.cn/qqapp/1103841572/A3E53E62691178E2F18D7B999FD22131/100, createdBy=f44d2003846, createdName=Chongyang Zhang, createdTime=Sun Mar 19 13:10:35 CST 2017, time=2017-03-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181117, encodeId=26ab18111ea9, content=学习了很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NcXNhUvfhzd2dD8SUAwqrufRiaKMGaaBScoAzEicJJibuu3wCIWWQxoLgS2UOBx1vsPe3faZtAiatc0pTWlS6868zZH/0, createdBy=0a231960988, createdName=胖红, createdTime=Sun Mar 19 12:05:53 CST 2017, time=2017-03-19, status=1, ipAttribution=)]
    2017-03-20 1e0f8808m18(暂无匿称)

    学习了,好文章。

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1862009, encodeId=f9de1862009bb, content=<a href='/topic/show?id=a374102813a1' target=_blank style='color:#2F92EE;'>#高风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102813, encryptionId=a374102813a1, topicName=高风险)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f5e185, createdName=zlawrance, createdTime=Fri Jul 07 07:22:00 CST 2017, time=2017-07-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1911826, encodeId=641c191182696, content=<a href='/topic/show?id=4de7112046c' target=_blank style='color:#2F92EE;'>#mAb#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11204, encryptionId=4de7112046c, topicName=mAb)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Thu Oct 12 23:22:00 CST 2017, time=2017-10-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181304, encodeId=4eaa18130437, content=学习了,好文章。, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Mon Mar 20 06:30:54 CST 2017, time=2017-03-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181141, encodeId=04d9181141bf, content=签到学习了很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://q.qlogo.cn/qqapp/1103841572/A3E53E62691178E2F18D7B999FD22131/100, createdBy=f44d2003846, createdName=Chongyang Zhang, createdTime=Sun Mar 19 13:10:35 CST 2017, time=2017-03-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181117, encodeId=26ab18111ea9, content=学习了很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NcXNhUvfhzd2dD8SUAwqrufRiaKMGaaBScoAzEicJJibuu3wCIWWQxoLgS2UOBx1vsPe3faZtAiatc0pTWlS6868zZH/0, createdBy=0a231960988, createdName=胖红, createdTime=Sun Mar 19 12:05:53 CST 2017, time=2017-03-19, status=1, ipAttribution=)]
    2017-03-19 Chongyang Zhang

    签到学习了很多

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1862009, encodeId=f9de1862009bb, content=<a href='/topic/show?id=a374102813a1' target=_blank style='color:#2F92EE;'>#高风险#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102813, encryptionId=a374102813a1, topicName=高风险)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f5e185, createdName=zlawrance, createdTime=Fri Jul 07 07:22:00 CST 2017, time=2017-07-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1911826, encodeId=641c191182696, content=<a href='/topic/show?id=4de7112046c' target=_blank style='color:#2F92EE;'>#mAb#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11204, encryptionId=4de7112046c, topicName=mAb)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Thu Oct 12 23:22:00 CST 2017, time=2017-10-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181304, encodeId=4eaa18130437, content=学习了,好文章。, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Mon Mar 20 06:30:54 CST 2017, time=2017-03-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181141, encodeId=04d9181141bf, content=签到学习了很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://q.qlogo.cn/qqapp/1103841572/A3E53E62691178E2F18D7B999FD22131/100, createdBy=f44d2003846, createdName=Chongyang Zhang, createdTime=Sun Mar 19 13:10:35 CST 2017, time=2017-03-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=181117, encodeId=26ab18111ea9, content=学习了很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NcXNhUvfhzd2dD8SUAwqrufRiaKMGaaBScoAzEicJJibuu3wCIWWQxoLgS2UOBx1vsPe3faZtAiatc0pTWlS6868zZH/0, createdBy=0a231960988, createdName=胖红, createdTime=Sun Mar 19 12:05:53 CST 2017, time=2017-03-19, status=1, ipAttribution=)]
    2017-03-19 胖红

    学习了很多

    0

相关资讯

NEJM:Bococizumab治疗导致的降脂可变性和抗药抗体的形成

在6个评价bococizumab的多国试验中,在相当大比例的患者出现抗药抗体,并且可以显著减弱降低LDL胆固醇水平。在没有抗药抗体的患者中也可以观察到胆固醇水平相对减少的较大可变性。