在动物模型中对Dabigatran Etexilate的新型衍生物进行临床前研究
Yujie Ren1, Chunlei Li2, Yujia Zhang1
1Green and Intelligent Pharmaceutical College, Zhejiang Guangsha Vocational and Technical University of Construction, Dongyang, Zhejiang Province, China; and.
Journal of cardiovascular pharmacology
|October 13, 2023
概括
一种新的化化合物R1显示出作为抗凝剂的显著潜力. 与达比加乙酸盐相比,它显示出更好的生物利用性和有效性,在临床前安全性评估中没有观察到毒性.
科学领域:
- 药理学 药理学是指药理学的学科.
- 药用化学 医学化学
- 药物发现 药物发现 药物发现
背景情况:
- 达比加特兰乙酸盐是一种广泛使用的抗凝剂,其口服生物可用性较低.
- 开发具有改善药理学特征的新型抗凝剂对于有效的血栓性疾病管理至关重要.
研究的目的:
- 合成和评估一种新的化衍生物R1,作为一种潜在的抗凝剂.
- 为了比较R1的药理动力学和药理动力学特性,与达比加乙酸及其前体R0.0进行比较.
- 在临床前模型中评估R1的安全性和毒性概况.
主要方法:
- 从R0.0合成化达比加衍生物R1的合成.
- 在小鼠体内进行的药理动力学研究,比较了口服R1,R0注射和达比加乙酸盐.
- 试验室抗凝剂活性测定 (由激素诱导的血小板聚合,阿拉基酸,腺二酸).
- 评估前热血素时间,激活的部分血栓形成时间和纤维素素水平.
- 安全性和毒性评估,包括心电图和小鼠和老鼠的极限测试.
主要成果:
- R1证明了由血栓激发的血小板聚合的剂量依赖抑制和由阿拉基酸和酸酸诱导的抑制聚合.
- R1显著延长了前热血素时间和激活了部分血栓等离子体时间,同时增加了纤维素原水平.
- R1的绝对生物利用率比达比加乙酸盐高出206%,克服了其低生物利用率缺陷.
- 在老鼠和小鼠中没有观察到心电图参数的显著变化或明显的毒性.
结论:
- 与达比加乙酸相比,R1是一种最佳的抗凝剂候选化合物,具有优越的药理学特性和生物可用性.
- 在临床前研究中,R1表现出良好的安全性,没有观察到急性中毒或心脏毒性.
- R1代表了一种有前途的新型抗凝剂候选药物,具有进一步临床研究的巨大潜力.
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