NEJM:美泊利单抗治疗嗜酸性肉芽肿血管炎

2017-05-18 zhangfan MedSci原创

美泊利单抗可缓解一半以上嗜酸性肉芽肿血管炎患者症状,减少激素使用

嗜酸性肉芽肿血管炎是一种嗜酸性血管炎。抗IL-5单克隆抗体美泊利单抗可降低血液中嗜酸细胞计数具有治疗嗜酸性肉芽肿性血管炎的潜在价值。

近日研究人员开展针对嗜酸性肉芽肿血管炎的III期研究,招募的患者为至少接受过4周强的松治疗的、复发或难治性嗜酸性肉芽肿血管炎患者。患者随机每四周接受300 mg美泊利单抗或安慰剂,并辅助标准治疗,持续52周。主要终点是52周时的累积缓解时间,以及第36周和第48周缓解率。次要终点是首次复发时间及平均糖皮质激素剂量

共136名患者参与研究,美泊利单抗组68人,安慰剂68人。统计发现,较安慰剂,美泊利单抗可显著增加缓解时间(参与者≥24周累计减免:28%vs3%;比值比,5.91;95% CI,2.68-13.03;P<0.001)。美泊利单抗在36周和48周的缓解率更高(32% vs. 3%;比值比,16.74;95% CI,3.61-77.56;P<0.001)。美泊利单抗对47%的患者无效,而安慰剂对81%的患者无作用。美泊利单抗组年复发率为1.14,而安慰剂组为2.27 (比值比,0.50;95% CI,0.36-0.70;P<0.001)。美泊利单抗组有44%的参与者以及安慰剂组有7%的患者,在48至52周期间,每日泼尼松龙或强的松平均剂量每天减少4毫克(比值比,0.20;95% CI,0.09-0.41;P<0.001)。安全性方面二者相近。

研究表明,美泊利单抗可缓解一半以上嗜酸性肉芽肿血管炎患者症状,减少激素使用。

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