辉瑞放弃对阿尔茨海默病药物Bapineuzumab的研究

2012-08-09 不详 网络

在得知又一项试验得出阴性结果之后,辉瑞公司决定停止对bapineuzumab的研究。 Bapineuzumab是一种旨在靶向作用于阿尔茨海默病患者脑部乙型淀粉样蛋白斑块的单克隆抗体药物。7月份辉瑞公司曾报告,一项对1,300例携带apo E4的阿尔茨海默病患者的Ⅲ期研究显示,bapineuzumab的药物效应为阴性。 与上述研究相同,这项纳入1,100例高危载脂蛋白E4等位基因(apo

在得知又一项试验得出阴性结果之后,辉瑞公司决定停止对bapineuzumab的研究。

Bapineuzumab是一种旨在靶向作用于阿尔茨海默病患者脑部乙型淀粉样蛋白斑块的单克隆抗体药物。7月份辉瑞公司曾报告,一项对1,300例携带apo E4的阿尔茨海默病患者的Ⅲ期研究显示,bapineuzumab的药物效应为阴性。

与上述研究相同,这项纳入1,100例高危载脂蛋白E4等位基因(apo E4)阴性患者的Ⅲ期试验的主要终点也是阿尔茨海默病评估量表-认知分量表(ADAS-Cog)和痴呆的残疾评估(DAD)评分的改变。

结果显示,bapineuzumab治疗未达到任一认知或功能终点。无一研究显示任何新的安全性问题征兆。不良事件包括肺炎、晕厥、髋部骨折和抽搐。与安慰剂组相比,活性治疗组中上述不良反应更常见。还有一些患者发生血管源性脑水肿和微小出血。

这两项研究的结果最终导致bapineuzumab的研究终止。辉瑞公司全球基层医疗商务部门药品研发组的主管Steven J. Romano博士在一份书面声明中说,公司对这些研究的临床结果感到非常失望。“我们很遗憾,丧失了为轻至中度阿尔茨海默病患者及其看护者提供一种有意义的新治疗的机会。”

在获知上述阴性结果后,辉瑞公司停止了其他2项针对轻至中度阿尔茨海默病患者的Ⅲ期研究,包括2项延长随访研究。Romano博士说,将继续对这些研究进行亚组分析。“这些数据以及正在进行的亚组和生物标记物分析,将进一步揭示这种复杂疾病的机制和促进这一领域的研究。”

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    2013-05-22 snf701207
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