JAMA Neurol:微管稳定剂TPI-287在一系列tau蛋白相关神经退行性疾病中的应用

2019-11-18 MedSci MedSci原创

研究认为,微管稳定剂TPI-287对多种Tau蛋白相关疾病具有潜在的治疗效果,同时确定篮子设计在神经退行性疾病的早期开发中的价值。

临床试验中的篮子设计,允许研究人员同时考察多种具有相同分子病理生理学的不同临床症状。近日研究人员采用这一原理,考察了微管稳定剂TPI-287(abeo紫杉烷)治疗阿尔茨海默病(AD)、4-repeat tauopathies(4RT)进行性核上麻痹(PSP)和皮质基底动脉综合征(CBS)的安全性、耐受性和药效学。

研究共纳入26例AD患者,14例PSP患者和30例β淀粉样蛋白阴性CBS患者,随机接受安慰剂、2.0、6.3或20.0 mg/m2的TPI-287静脉注射,每3周一次,持续9周。研究的主要终点是TPI-287的安全性和耐受性(最大耐受剂量)。次要和探索性终点包括脑脊液(CSF)中的TPI-287水平以及生物标志物、临床和神经心理学指标的变化。

在TPI-287治疗的AD患者中发生了三种严重的过敏样反应,而在4RT患者中没有观察到, AD患者的最大耐受剂量为6.3 mg/m2,4RT的最大耐受剂量为20 mg/m2。在接受治疗的4RT患者中,与痴呆恶化相关症状下降的程度(临床与额颞叶痴呆评估得分:安慰剂组为0.5 vs TPI-287组为0.7)与患者数量多于安慰剂组(安慰剂组3例vs.TPI-287组11例)。尽管CSF中检测不到TPI-287,但CSF生物标记物显示4RT治疗臂中的几丁质酶-3-样蛋白-1(YKL-40)水平(-8.4 ng/mL)低于安慰剂组(10.4?ng/mL,Mann-Whitney试验)。

研究认为,微管稳定剂TPI-287对多种Tau蛋白相关疾病具有潜在的治疗效果,同时确定篮子设计在神经退行性疾病的早期开发中的价值。

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    2020-07-21 yinhl1978
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    2019-11-20 szhvet
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    2019-11-18 旺医

    顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息

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