互动:DAAO抑制剂luvadaxistat在成年精神分裂症患者中的随机二期研究
Venkatesha Murthy1, Elizabeth Hanson1, Nicholas DeMartinis1
1Takeda Pharmaceutical Company Limited, Cambridge, Massachusetts, United States.
Schizophrenia research
|June 29, 2024
概括
作为d-氨基酸氧化酶抑制剂的luvadaxistat没有改善精神分裂症患者的负面症状. 然而,50毫克的剂量显示了认知功能的改善,这表明治疗精神分裂症相关认知障碍的潜力.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 药理学 药理学是指药理学的学科.
背景情况:
- N-甲基-d-酸盐受体 (NMDAR) 信号缺陷与精神分裂症的发病因子有关.
- 卢瓦达克西斯塔特是一种研究中的d-氨基酸氧化酶 (DAAO) 抑制剂,旨在通过增加d-血清水平来增强NMDAR辅激剂活性.
研究的目的:
- 评估三剂卢瓦达克西斯塔特在发生持续负面症状的精神分裂症患者中的有效性和安全性.
- 评估luvadaxistat对负面症状,认知功能和整体功能的影响.
主要方法:
- 一个为期14天的单盲安慰剂试验,随后是12周的双盲治疗,在第二阶段随机化,安慰剂控制的研究 (INTERACT) 中进行.
- 主要终点:阳性和阴性综合征尺度-阴性症状因子得分 (PANSS NSFS) 的变化.
- 二级终点:精神分裂症认知简要评估 (BACS) 和精神分裂症认知评分表 (SCoRS) 分数的变化.
主要成果:
- 在12周后,与安慰剂相比,luvadaxistat在任何剂量下都没有显著改善PANSSNSFS得分.
- 50毫克的卢瓦达克西斯塔特剂量显示了认知终点的统计学显著改善,包括BACS复合得分 (p=0.031) 和SCoRS访谈者总得分 (p=0.011).
- 卢瓦达克西斯塔特耐受性良好,没有发现新的安全问题.
结论:
- 在INTERACT研究中,luvadaxistat在改善精神分裂症的负面症状方面没有显示出有效性.
- 50毫克的剂量有望改善认知表现和功能,支持进一步调查与精神分裂症相关的认知障碍.
- 卢瓦达克西斯塔特具有良好的安全性,因此有必要继续研究其针对特定精神分裂症相关缺陷的治疗潜力.
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