Biogen以27亿美元与基因编辑公司Sangamo签署协议,再次在阿尔茨海默氏病领域巨额投资

2020-03-02 不详 MedSci原创

Biogen在阿尔茨海默氏病领域进行了另一笔巨额投资,与基因编辑公司Sangamo签署了3.5亿美元的前期协议,以获得针对tau蛋白ST-501药物的权利。

Biogen在阿尔茨海默氏病领域进行了另一笔巨额投资,与基因编辑公司Sangamo签署了3.5亿美元的前期协议,以获得针对tau蛋白ST-501药物的权利。

此次合作还涉及一款名为ST-502的药物--针对以α-突触核蛋白异常聚集(突触核神经病)为特征的帕金森病和神经退行性疾病,以及第三种未命名的神经肌肉疾病候选药物。Biogen还要求对另外九个未公开的神经系统靶标享有专有权。

考虑到ST-501和ST-502都仍处于临床前开发阶段,此次交易是一笔非常可观的交易,前期付款(现金1.25亿美元,Sangamo股票2.25亿美元),并获得了与开发、监管相关的里程碑付款23.7亿美元。

Tau逐渐成为阿尔茨海默氏症和额颞痴呆等其他疾病的药物开发靶标。

这项授权交易是在Biogen准备提交针对淀粉样蛋白的阿尔茨海默氏症治疗药物aducanumab的基础上达成的,该药物已在去年令人失望的临床试验结果后被注销,但在长期随访中显示出益处后又复活。

Biogen的研发负责人Al Sandrock说:"作为神经科学的先驱,Biogen将与Sangamo合作开发一种新的基因调节疗法,该方法在DNA水平上起作用,具有治疗神经系统疾病的潜力。"

Sangamo基于其锌指核酸酶(ZFN)技术开发基因编辑药物,该技术可用于调节基因表达,但去年在II型粘多糖贮积症试验中的结果令人失望。Sangamo的锌指蛋白转录因子(ZFP-TF)方法可以引起双链DNA断裂,该断裂经改造可靶向细胞中的特定序列。

Sangamo表示:"在临床前研究中,使用AAV载体递送靶向tau的(ST-501)和靶向α突触核蛋白(ST-502)的ZFP-TF,对tau和α突触核蛋白具有高度特异性,发挥强效且可调节的抑制作用。"

原始出处:


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    2020-10-31 sunylz
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    2021-01-01 ymljack
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