在单剂量后,健康个体的ABCG2多态和里瓦罗克萨班的药理动力学
A F Dos Santos1,2, Q A S Francisco2, J B Nunes1
1Universidade Federal de Alfenas, Alfenas, MG, Brasil.
概括
在ABCG2载体的遗传变异影响里瓦洛克萨班的药理动力学. 该ABCG2 421 A/A基因型可能会改变里瓦洛克萨班.
科学领域:
- 药物遗传学 药物遗传学
- 药理动力学 药理动力学
- 毒品运输商 毒品运输商
背景情况:
- 利瓦罗克萨班是一种直接的XA因子抑制剂,表现出显著的个体间变异性.
- 这种变化可能导致药物不良反应或无效.
- 了解影响利瓦洛克萨班反应的遗传因素对于优化治疗结果和安全至关重要.
研究的目的:
- 调查编码ABCG2载体的基因多形态对利瓦洛克萨班药理学的影响.
- 为了确定特定的ABCG2基因型是否会影响健康志愿者的里瓦洛克萨班的吸收,分布和排出.
主要方法:
- 两项生物等价性研究涉及117名健康志愿者,接受一次20毫克口服剂量的里瓦罗克萨班.
- 使用超高性能液体染色学与质谱学相结合,测量了里瓦洛克萨班的血度.
- 使用WinNonlin程序计算了药理动力学参数.
主要成果:
- 在禁食条件下,ABCG2 421 A/A基因型的携带者表现出与C/C和C/A基因型相比,里瓦罗克萨班的Vd和t1/2值显著更高 (P<0.05).
- 虽然A/A基因型载体的Cmax,AUC0-t和Cl值较低,但这些差异没有达到统计学意义 (P>0.05).
结论:
- 在健康个体中,ABCG2 421 A/A基因型可能会在单次口服剂量后影响里瓦洛克萨班的药理学参数.
- 在临床应用这些发现之前,需要进一步验证.
- 这项研究突出了药物遗传学在个性化利瓦洛克萨班治疗中的潜在作用.
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