NEJM:MVA疫苗预防天花的效果研究

2019-11-14 MedSci MedSci原创

MVA疫苗具有较高的安全性及天花预防效果

传统的天花疫苗是以复制痘苗病毒为基础,具有相当大的副作用。

近日研究人员评估了改良安卡拉豆苗(MVA)作为一种潜在的天花疫苗的有效性,440名参与者接受2剂量疫苗,所有参与者均接受1剂量的ACAM2000,随后以MVA代替ACAM2000(MVA组)或另外一剂ACAM2000 (ACAM2000组)。研究的主要终点是MVA疫苗与ACAM2000的非劣效性。

MVA组220参与者,ACAM2000组213名参与者,208名参与者接受了2种剂量的MVA接种。MVA疫苗在第6周诱导中和抗体的几何平均滴度为153.5, ACAM2000在第4周中和抗体几何平均滴度为79.3(比率为1.94) 。第14天时,MVA疫苗接种后(16.2)诱导的中和抗体的几何平均滴度与ACAM200疫苗组(16.2)相当,组间血清转化率相似(分别为90.8%和91.8%)。MVA组主要皮肤病变反应的面积为0 mm2 , ACAM2000组为76.0 mm2,面积衰减率为97.9%。MVA组在两个疫苗接种周期后的不良事件,3级或更高级别的不良事件率少于ACAM2000组(17 vs 64位受试者)。

研究认为,MVA疫苗具有较高的安全性及天花预防效果。

原始出处:

Phillip R. Pittmanet al. Phase 3 Efficacy Trial of Modified Vaccinia Ankara as a Vaccine against Smallpox. N Engl J Med, November 14, 2019.

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1953640, encodeId=7d411953640dc, content=<a href='/topic/show?id=ebace05389b' target=_blank style='color:#2F92EE;'>#疫苗预防#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70538, encryptionId=ebace05389b, topicName=疫苗预防)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c805395, createdName=ycmayy, createdTime=Thu Aug 06 13:13:00 CST 2020, time=2020-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=375237, encodeId=14f93e523702, content=学习了,不错的话题,非常精彩,受益非浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7b005228115, createdName=14794e5bm67(暂无昵称), createdTime=Fri Nov 15 18:03:27 CST 2019, time=2019-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1035015, encodeId=e0e61035015e6, 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=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=旺医, createdTime=Thu Nov 14 21:13:00 CST 2019, time=2019-11-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1046947, encodeId=fdbe104694edc, 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=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Thu Nov 14 21:13:00 CST 2019, time=2019-11-14, status=1, ipAttribution=)]
    2019-11-15 14794e5bm67(暂无昵称)

    学习了,不错的话题,非常精彩,受益非浅

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    2019-11-14 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

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  4. [GetPortalCommentsPageByObjectIdResponse(id=1953640, encodeId=7d411953640dc, content=<a href='/topic/show?id=ebace05389b' target=_blank style='color:#2F92EE;'>#疫苗预防#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70538, encryptionId=ebace05389b, topicName=疫苗预防)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c805395, createdName=ycmayy, createdTime=Thu Aug 06 13:13:00 CST 2020, time=2020-08-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=375237, encodeId=14f93e523702, content=学习了,不错的话题,非常精彩,受益非浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7b005228115, createdName=14794e5bm67(暂无昵称), createdTime=Fri Nov 15 18:03:27 CST 2019, time=2019-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1035015, encodeId=e0e61035015e6, 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=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=旺医, createdTime=Thu Nov 14 21:13:00 CST 2019, time=2019-11-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1046947, encodeId=fdbe104694edc, 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=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=CHANGE, createdTime=Thu Nov 14 21:13:00 CST 2019, time=2019-11-14, status=1, ipAttribution=)]
    2019-11-14 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