Blood:艾米珠单抗预防用于A型血友病患者的长期疗效

2021-04-29 MedSci原创 MedSci原创

艾米珠单抗预防法在所有年龄的使用或不使用FVIII抑制剂的PwHA患者中均能有效维持较低的出血率,并且耐受性良好,未出现新的安全隐患

A型血友病患者(PwHA)缺乏凝血因子VIII(FVIII),导致自发性和创伤性出血,最常见的是关节、肌肉和软组织出血;颅内出血可能危及生命。

皮下注射双特异性人源化单克隆抗体艾米珠单抗(emicizumab)进行预防,可促进A型血友病患者有效止血。既往研究已报告了艾米珠单抗的初始疗效、安全性和药代动力学,但尚无长期疗效的数据报道。

本文报告了4项III期研究(HAVEN 1、HAVEN 2、HAVEN 3和HAVEN 4)的汇总分析,以明确艾米珠单抗的长期疗效、安全性和药代动力学特征

该分析共涵盖了401位有/无应用VIII因子(FVIII)抑制剂的儿科和成年人PwHA患者。

年化流血率

截止2020年5月15日,总体中效期为120.4周(四分位范围 89.0-164.4),基于模型的治疗后年化流血率(ABR)为1.4(95% CI 1.1-1.7)。在24周治疗间隔的分析中,ABR降低并稳定在<1;在第121-144周时,170位患者的平均治疗后的ABR降至了0.7(95%CI 0-5.0)。在第121-144周期间,82.4%的受试者治疗后无出血事件,97.6%的受试者的出血事件不超过3次,94.1%的受试者报告无治疗靶关节出血。靶关节的出血事件明显减少。

不良事件

艾米珠单抗的耐受性良好,无受试者因不良事件超过既往报告过的5次而中断。在截止日期时,共报告了3例血栓性微血管病(1例致命性直肠出血)和2例血栓栓塞事件,均与激活凝血酶原复合物浓缩物的使用以及心肌梗塞和静脉装置闭塞有关。

总之,本分析通过分析了970.3个患者年的暴露量发现,艾米珠单抗预防法在所有年龄的使用或不使用FVIII抑制剂的PwHA患者中均能有效维持较低的出血率,并且耐受性良好,未出现新的安全隐患

原始出处:

Michael U. Callaghan, et al. Long-term outcomes with emicizumab prophylaxis for hemophilia A with or without FVIII inhibitors from the HAVEN 1-4 studies. Blood (2021) 137 (16): 2231–2242. https://doi.org/10.1182/blood.2020009217

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    #Blood#点击进入话题查看更多相关文章 或评论时插入话题加入讨论

    0

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    2021-04-30 内科新手

    谢谢梅斯提供这么好的信息,学到很多

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1678161, encodeId=91bb16e8161c0, content=<a href='/topic/show?id=7df63110d5' target=_blank style='color:#2F92EE;'>#A型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3110, encryptionId=7df63110d5, topicName=A型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Thu Mar 17 09:50:22 CST 2022, time=2022-03-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1264145, encodeId=b47d1264145f8, content=<a href='/topic/show?id=ffb03111a1' target=_blank style='color:#2F92EE;'>#A型血友病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3111, encryptionId=ffb03111a1, topicName=A型血友病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=32d177, createdName=changfy, createdTime=Sat May 01 13:50:22 CST 2021, time=2021-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1553516, encodeId=491315535168f, content=<a href='/topic/show?id=3b409e02804' target=_blank style='color:#2F92EE;'>#长期疗效#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=97028, encryptionId=3b409e02804, topicName=长期疗效)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=fe2a14383573, createdName=gjsgj, createdTime=Sat May 01 13:50:22 CST 2021, time=2021-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=961921, encodeId=f60a96192149, content=<a href='/topic/show?id=96fb352ebf' target=_blank style='color:#2F92EE;'>#Blood#</a>点击进入话题查看更多相关文章 或评论时插入话题加入讨论, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3527, encryptionId=96fb352ebf, topicName=Blood)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20221103/2796e00c9b4549e3b313ed9e7accc68f/b52d6d98bbe04782b5a4e2dd1ee80be2.jpeg, createdBy=078e1614372, createdName=MedSciZeng, createdTime=Fri Apr 30 17:31:04 CST 2021, time=2021-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1032888, encodeId=709f1032888d9, content=谢谢梅斯提供这么好的信息,学到很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=内科新手, createdTime=Fri Apr 30 01:50:22 CST 2021, time=2021-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=961692, encodeId=e1de961692a1, content=学习了,涨知识了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDM9swhbgTo7nzqRKzMmzckmEoeTyLQVDCgjqsicjyhxPs0vPoYU6GsSYbCjSkNHicJkz3NL0a0EbUMVdNjkctXI6FocpGKaVr9E/0, createdBy=29392048316, createdName=ms2000001051330459, createdTime=Thu Apr 29 23:19:51 CST 2021, time=2021-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=961679, encodeId=99e89616e92a, content=A型血友病患者(PwHA)缺乏凝血因子VIII(FVIII)。, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM4gCIdSaEkahCNuUWZv4iaKmqvUKHyKnBiarBM9RStQKBeV5Lh6GYYFiamdV5KlSfbLvmAgZTLtq81XA/0, createdBy=13511650672, createdName=言西早, createdTime=Thu Apr 29 22:57:48 CST 2021, time=2021-04-29, status=1, ipAttribution=)]
    2021-04-29 ms2000001051330459

    学习了,涨知识了!

    0

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    2021-04-29 言西早

    A型血友病患者(PwHA)缺乏凝血因子VIII(FVIII)。

    0

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