抗体阿杜卡努马布可以减少阿尔茨海默病中的Aβ斑块
Jeff Sevigny1, Ping Chiao1, Thierry Bussière1
1Biogen, Cambridge, Massachusetts 02142, USA.
Nature
|September 2, 2016
概括
在阿尔茨海默病患者中,阿杜卡努马布是一种新型抗体疗法,有效地减少了大脑中的粉样β斑块. 这种阿尔茨海默氏症治疗在减缓临床衰退方面显示出有希望的结果,
科学领域:
- 神经科学
- 免疫学
- 药理学
背景情况:
- 阿尔茨海默病 (AD) 涉及粉样β (Aβ) 斑块的积累和神经退行.
- 以往针对Aβ的抗体免疫疗法在有效性方面遇到了挑战.
- 开发针对阿尔茨海默病的向疗法仍然是一个至关重要的未满足需求.
研究的目的:
- 评估针对聚合Aβ的人类单克隆抗体aducanumab的疗效和安全性.
- 评估阿杜卡努马布对脑Aβ水平和AD患者临床衰退的影响.
- 研究阿杜卡努马布作为阿尔茨海默病治疗的潜力.
主要方法:
- 产生人类单克隆抗体,向聚合的Aβ.
- 通过每月一次静脉注射给患有预发性或轻度阿尔茨海默病的患者.
- 使用神经成像评估Aβ降低,并通过标准化认知测试 (CDR-SB,MMSE) 评估临床衰退.
主要成果:
- 在AD患者中,阿杜卡努马布表现出与剂量和时间相关的脑Aβ降低.
- 用阿杜卡努马布治疗与临床衰退的减缓有关.
- 与粉样蛋白相关的成像异常 (ARIA) 是主要的安全发现.
结论:
- 在阿尔茨海默病的大脑中,阿杜卡努马布有效向并降低聚合的Aβ.
- 观察到的临床衰退减缓支持阿杜卡努马布对阿尔茨海默病的治疗潜力.
- 需要进一步的临床试验来证实这些发现并支持粉样蛋白假说.
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