阿尔茨海默病候选药物ACD856,新一轮I期研究已经启动

2021-10-04 Allan MedSci原创

阿尔茨海默病是最常见的痴呆症,全世界约有5000万人受到影响。阿尔茨海默病是一种致命的疾病,对亲属和社会都有很大的影响。至今,仍缺乏预防和疾病改善的方法。

阿尔茨海默病是最常见的痴呆症,全世界约有5000万人受到影响。阿尔茨海默病是一种致命的疾病,对亲属和社会都有很大的影响。至今,仍缺乏预防和疾病改善的方法。

痴呆症相关疾病的全球总成本估计约为10,000亿美元。鉴于缺乏有效的对症治疗和疾病改善治疗,迫切需要新的有效疗法。目前市场上为数不多的获批药物只有有限的对症作用,并且会产生剂量限制性副作用。据估计,一种治疗阿尔茨海默病的疾病改善疗法年销售额将超过150亿美元。在瑞典,大约有100,000人患有阿尔茨海默病,每年的医疗保健费用约为630亿瑞典克朗,超过癌症和血管疾病的总和。

AlzeCure Pharma AB (publ) 是一家开发中枢神经系统疾病药物的瑞典制药公司,其项目涉及阿尔茨海默病和疼痛,AlzeCure今天宣布该公司已经启动了新的临床I期研究(多重递增剂量,MAD),以评估阿尔茨海默病的候选药物ACD856。

MAD I期研究是AlzeCure的第三项临床研究,ACD856是该公司NeuroRestore平台内的主要候选药物。ACD856正在开发用于缓解认知能力受损的疾病状态,例如阿尔茨海默病。主要研究目标是评估 ACD856在重复给药后的耐受性和安全性,预计研究结果将于2022年上半年公布。

NeuroRestore平台中的化合物刺激大脑中的几个重要信号通路,其中包括改善认知。临床前研究表明,AlzeCure的候选药物可加强神经细胞之间的交流并提高认知能力,包括记忆功能。

NeuroRestore是一个针对认知能力受损疾病状态的症状缓解候选药物平台,例如阿尔茨海默病、睡眠呼吸暂停、创伤性脑损伤和帕金森病。在NeuroRestore的临床前研究中,NeuroRestore刺激中枢神经系统中称为神经营养因子的特定信号通路,最著名的是NGF(神经生长因子)和BDNF(脑源性神经营养因子)。NGF和BDNF的水平在几种疾病状态下受到干扰,并且信号传导减弱。受损的功能会削弱突触之间的交流,即神经末梢的接触面,并降低神经细胞存活的可能性,从而导致认知障碍。NGF对神经细胞的功能起着至关重要的作用,而BDNF的功能紊乱与多种不同疾病的认知能力受损有很强的遗传联系,例如阿尔茨海默病、帕金森病、创伤性脑损伤和睡眠障碍。BDNF信号与抑郁症之间也存在联系,近年来这种联系得到了进一步加强。

 

原始出处:

https://www.firstwordpharma.com/node/1868314?tsid=4

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    2021-10-05 黑布林

    不知道能不能成功

    0

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    2021-10-04 李晓红

    阿尔兹海默病影响人类健康

    0

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APOE4与淀粉样蛋白-β无关,通过周细胞中的亲环素A途径,加速阿尔茨海默病小鼠的晚期血脑屏障断裂和神经变性,对AD的血管和神经退行性疾病的发病和治疗有一定的意义。

Alzheimers Dement:小血管病比阿尔茨海默病更能决定记忆力临床患者的扩散MRI改变

在记忆临床患者中,SVD对弥散改变的影响远远超过AD,支持扩散测量作为SVD标志物的价值。

Nature:研究人员发现可能有助于预防阿尔茨海默病的信号分子

一部分星形胶质细胞试图通过释放一种叫做白细胞介素 3 (IL-3) 的分子将杀伤性小胶质细胞转化为不再消灭神经元而是专注于清除淀粉样蛋白 β 沉积物和tau 缠结。

世界阿尔茨海默病日|无法治愈的疾病,该如何预防?

​失智症又名认知障碍症、认知症、痴呆症,包括常见的老年痴呆即阿尔茨海默病,这是一种高致残率、高死亡率的神经退行性疾病,随着病情发展,患者失忆、失智、失能,且伴有精神行为异常,病情可能持续8-20年

Neurology:淀粉样蛋白PET预测散发性阿尔茨海默病症状的发生

研究人员用匹兹堡化合物B进行淀粉样蛋白PET测定脑淀粉样蛋白负荷,以预测认知正常的脑淀粉样变性患者出现AD的时间,散发性阿尔茨海默病的症状出现年龄与个体达到淀粉样蛋白积聚临界点的年龄密切相关。

拓展阅读

Lancet子刊:唐氏综合征患者与常染色体显性阿尔茨海默病患者 tau 蛋白扩散的比较

虽然唐氏综合征患者和常染色体显性遗传阿尔茨海默病患者的淀粉样蛋白和tau蛋白的一般进展相似,但这两类患者的tau蛋白负荷在空间分布、时间和程度上存在细微差别。

Annals of neurology: 日常数字测试对认知功能未受损的老年人淀粉样蛋白相关变化的早期识别作用

与Aβ相关的早期记忆衰退可以通过评估几天的学习曲线来发现,这表明记忆巩固的障碍早于AD的其他常规记忆障碍

IVD前沿丨阿尔茨海默病检测标志物必看综述

在这篇文章中,作者提供了基于生物标志物的AD分期系统的最新综述,并考虑了基于液体生物标志物的未来分期系统。

Sci Adv:华中科技大学骆海明团队开发阿尔茨海默病生物标志物的快速检测平台

iMEP技术还能够熟练量化与疾病发病机制相关的不同外泌体生物标志物水平。

Nat Aging:武汉大学张振涛团队揭示听力损失促进阿尔茨海默病发病的潜在机制

该研究表明,听力损失加重了AD野生型小鼠和小鼠模型的认知障碍。

Alzheimer&Dementia:虚拟阿尔茨海默氏症生物标志物——观察性队列研究结果

向认知能力未受损的研究参与者虚拟访问淀粉样蛋白 PET 结果是可行的,而且不会导致心理症状加重。