PTC518的药理动力学和药理动力学,一种口服的亨廷丁降低拼接修饰剂:第一次对人类进行研究
Lan Gao1, Anuradha Bhattacharyya1, Brian Beers1
1PTC Therapeutics, Warren, New Jersey, USA.
British journal of clinical pharmacology
|August 18, 2024
概括
PTC518是一种新的亨廷丁 (HTT) 拼接修饰剂,在健康志愿者中显示出良好的安全性. 该药物表现出HTT mRNA和蛋白质的剂量依赖性降低,支持其作为亨廷顿病 (HD) 突破性治疗的潜力.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 药理学 药理学是指药理学的学科.
背景情况:
- 亨廷顿病 (HD) 是一种毁灭性的神经退行性疾病,没有经批准的疾病修饰治疗方法.
- PTC518是一种口服的亨廷丁 (HTT) 前mRNA拼接修饰剂,旨在解决这一高未满足的医疗需求.
- 这项研究是首次对PTC518.8进行人体研究.
研究的目的:
- 在健康志愿者中评估PTC518的安全性和耐受性.
- 在单次和多次上升剂量后,描述PTC518的药理动力学 (PK).
- 评估PTC518的药理动力学 (PD),包括其对HTT mRNA和蛋白质水平的影响.
主要方法:
- 一个第一阶段,单中心,随机化研究,涉及77名健康的男性和女性志愿者.
- 单次和多次上升剂量的PTC518.518的管理.
- 评估安全性,耐受性,PK,PD (HTT mRNA和蛋白质水平) 和食品的影响.
主要成果:
- PTC518表现出良好的安全性概况,主要是轻微和短暂的不良事件.
- 药物动力学分析显示,剂量依赖的暴露具有很长的终端半衰期 (54.0-75.3小时).
- 在HTT mRNA (高达~60%) 和HTT蛋白 (高达~35%) 中观察到显著的,剂量依赖的减少,CSF度大约是未结合的血度的2.6倍.
结论:
- 在健康的志愿者中,PTC518的耐受性很好.
- 该研究证明了机制的证明,剂量取决于系统HTT mRNA和蛋白质水平的减少.
- 结果支持在亨廷顿病患者中进一步研究PTC518,强调其作为突破性治疗的潜力.
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