NEJM:基于抗体的替卡格雷逆转剂效果分析

2019-05-09 xing.T 网络

由此可见,在健康志愿者中,通过多次检查测量,替卡格雷的特异性逆转剂PB2452可使替卡格雷的抗血小板作用立即和持续逆转。

替卡格雷是一种口服P2Y12抑制剂,与阿司匹林一起用于降低急性冠状动脉综合征或既往心肌梗死患者的缺血事件风险。与其他抗血小板药物一样,与替卡格雷相关的自发性大出血和与急诊有创手术相关的出血也是一个问题。血小板输注不能逆转替卡格雷的抗血小板作用。快速起效的逆转剂可能有用。 

近日,顶级医学期刊NEJM上发表了一篇研究文章。在这项随机、双盲、安慰剂对照的1期试验中,研究人员评估了静脉注射PB2452,一种以高亲和力结合替卡格雷的单克隆抗体片段,作为替卡格雷的逆转剂。研究人员在替卡格雷预处理48小时之前和之后以及在施用PB2452或安慰剂之后再次评估健康志愿者中的血小板功能。使用光透射聚集测定法,即P2Y12血小板反应性检查和血管扩张剂刺激的磷蛋白测定来评估血小板功能。 

在接受随机分组的64名志愿者中,48名被分配接受PB2452治疗,16名接受安慰剂治疗。在替卡格雷预处理48小时后,血小板聚集被抑制约80%。通过多次实验测定,与安慰剂相比,PB2452作为初始静脉推注给药,然后延长输注(8,12或16小时)与血小板功能的显著增加相关联。在PB2452开始后5分钟内发生替卡格雷逆转并持续超过20小时(对于所有实验,在所有时间点的Bonferroni调整后P<0.001)。停药后没有血小板活性反弹的证据。与试验药物相关的不良事件主要限于涉及输注部位的问题。 

由此可见,在健康志愿者中,通过多次检查测量,替卡格雷的特异性逆转剂PB2452可使替卡格雷的抗血小板作用立即和持续逆转。 

原始出处:

Deepak L. Bhatt,et al.Antibody-Based Ticagrelor Reversal Agent in Healthy Volunteers.NEJM.2019.https://www.nejm.org/doi/full/10.1056/NEJMoa1901778

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    2019-05-09 旺医

    顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1910988, encodeId=0cde191098826, content=<a href='/topic/show?id=e6045e517dd' target=_blank style='color:#2F92EE;'>#效果分析#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57517, encryptionId=e6045e517dd, topicName=效果分析)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Sat Aug 31 10:16:00 CST 2019, time=2019-08-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1814261, encodeId=16661814261e2, content=<a href='/topic/show?id=9fae94e559d' target=_blank style='color:#2F92EE;'>#逆转剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=94755, encryptionId=9fae94e559d, topicName=逆转剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f98e185, createdName=psybestwish, createdTime=Thu Oct 10 10:16:00 CST 2019, time=2019-10-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1370702, encodeId=49f413e070237, content=<a href='/topic/show?id=691a603409f' target=_blank style='color:#2F92EE;'>#替卡格雷#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=60340, encryptionId=691a603409f, topicName=替卡格雷)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2fe4321, createdName=lifangping, createdTime=Fri May 10 23:16:00 CST 2019, time=2019-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1034820, encodeId=e2451034820a4, content=顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=旺医, createdTime=Thu May 09 11:16:00 CST 2019, time=2019-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1046815, encodeId=e8df104681578, content=疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Thu May 09 11:16:00 CST 2019, time=2019-05-09, status=1, ipAttribution=)]
    2019-05-09 CHANGE

    疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的

    0

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