骨髓氧化酶抑制剂mitiperstat (AZD4831) 在预期的治疗剂量下不会延长QT间隔
Joanna Parkinson1, Jesper Sundell2, Dinko Rekić3
1Clinical Pharmacology and Quantitative Pharmacology, Clinical Pharmacology and Safety Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden.
Pharmacology research & perspectives
|March 6, 2024
概括
米蒂珀斯塔特是一种髓氧化酶抑制剂,不会在健康志愿者中延长QT间隔. 度-QT建模证实在治疗度下没有显著风险,支持其对心力衰竭和其他疾病的安全性.
科学领域:
- 药理学 药理学是指药理学的学科.
- 临床药理学 临床药理学
- 心脏病学 心脏病学
背景情况:
- 米蒂珀斯塔特是一种正在开发的髓氧化酶抑制剂,用于心力衰竭,非酒精性脂肪肝炎和COPD.
- 评估QT间隔延长的风险对于药物安全至关重要,特别是针对慢性疾病的药物.
研究的目的:
- 通过度-QT (C-QT) 建模,评估mitiperstat延长QT间隔的潜力.
- 为了确定mitiperstat在预期的治疗暴露下心脏再极化方面的安全边际.
主要方法:
- 一项针对健康的男性志愿者进行的第一阶段研究,随机分配给单次口服剂量米蒂珀斯塔特 (5-405毫克) 或安慰剂.
- 药理动力学和数字心电图数据在剂量后48小时内被收集.
- 一个线性混合效应模型分析了度和心率 (ΔQTcF) 校正的QT间隔之间的关系.
主要成果:
- 模型预测的基线校正和安慰剂调整的平均ΔΔQTcF在预期的最高临床暴露时为+0.73毫秒.
- 对 ΔΔQTcF 的上方 90% 置信区间低于监管值值值值值.
- 探索性分析证实了模型假设,包括对心率没有影响和线性度-反应关系.
结论:
- 在预期的治疗度下,米蒂珀沙特与QT间隔延长的风险无关.
- 这项研究支持mitiperstat在预期的临床应用中的心脏安全性.
- 证实了显著的安全差距,在进一步的研究中否定了对阳性对照的需要.
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