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NEJM:Emicizumab用于预防A型血友病患者出血

2018-08-30 zhangfan MedSci原创

研究认为,每1-2周1次Emicizumab预防治疗可显著降低A型血友病患者的出血风险

Emicizumab是一种双特异性单克隆抗体,通过连接活化因子IX和因子X来替代失活的因子VIII以恢复止血功能。近日研究人员考察了Emicizumab预防治疗对于A型血友病患者预防出血的疗效。

12岁以上,曾接受过因子VIII间歇疗法的血友病患者参与研究,接受1.5mg/kg体重的Emicizumab维持治疗(A组)、3.0mg/kg体重的Emicizumab治疗(B组)、安慰剂(C组)或在因子VIII预防治疗(D组)。研究的主要终点为出血率。

152名患者参与研究,A组患者年均出血事件1.5起、B组1.3起、C组38.2起,A组和B组患者的出血风险分别下降96%和97%,A组和B组分别有56%和60%的患者未发生出血事件。48名接受Emicizumab出血预防治疗的患者,其出血率较因子VIII预防低68%。最常见的不良事件为低级注射部位反应,未发生血栓、血栓形成性微血管病变事件、抗药物抗体或第VIII因子抑制事件。

研究认为,每1-2周1次Emicizumab预防治疗可显著降低A型血友病患者的出血风险。

原始出处:

Johnny Mahlangu et al. Emicizumab Prophylaxis in Patients Who Have Hemophilia A without Inhibitors. N Engl J Med,August 30,2018.

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    2018-10-18 snf701207
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    2018-09-01 by2011

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