Rozanolixizumab治疗原发性免疫性血小板减少症:II期研究取得积极进展

2020-09-09 Allan MedSci原创

生物制药公司UCB今日公布了其研究性药物rozanolixizumab的II期研究结果,rozanolixizumab是首个针对原发性免疫性血小板减少症(ITP)患者的单克隆FcRn抗体。

原发性免疫性血小板减少症(ITP)是一种罕见的慢性自身免疫性疾病,其特征在于不可预测的致人衰弱的症状,包括自发性瘀伤、出血和极度疲劳,这会极大地影响患者的日常生活。

生物制药公司UCB今日公布了其研究性药物rozanolixizumab的II期研究结果,rozanolixizumab是首个针对原发性免疫性血小板减少症(ITP)患者的单克隆FcRn抗体。

在这项研究中,在单剂量组(15和20 mg / kg)与多剂量组(每周5x4、3x7和2x10 mg / kg,累积剂量约为20mg / kg)中,均观察到了血小板计数的临床改善(即血小板计数≥50x109/ L)和免疫球蛋白G(IgG)水平的显著降低。具体而言,单次输注15或20 mg / kg的患者(分别为66.7%和54.5%的患者)与多次输注以达到大约20mg / kg的患者相比,更多患者获得了血小板计数的改善,并且在单剂量组中发生得更快。最低平均IgG在的单剂量组中出现在第8天,而在多剂量组中则需要≥15天。

最常见的不良反应是轻度至中度头痛,在20mg / kg人群中发生率最高。其他报告的不良事件包括腹泻和呕吐,后者仅在单剂量组中观察到。所有不良反应均已得到解决,无临床后遗症。没有患者因副作用而终止研究。

 

原始出处:

https://www.firstwordpharma.com/node/1755859?tsid=4

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