一项交叉生物测量研究,以优化抗逆转录病毒粘附率估计
Aaron S Devanathan1, Amanda J Poliseno2, Nicole R White2
1University of Pittsburgh School of Pharmacy, Pittsburgh, PA.
Journal of acquired immune deficiency syndromes (1999)
|January 15, 2025
概括
精确的坚持监测为特诺福维尔二醇酸/emtricitabine (TDF/FTC) 是至关重要的. 在干血斑点中测量药物代谢物提供了对稳定和不断变化的粘附模式的最准确的评估.
科学领域:
- 药理动力学和药物新陈代谢
- 艾滋病毒治疗方法 坚持 研究 研究
背景情况:
- 不完全遵守特诺福维尔双素 fumarate/emtricitabine (TDF/FTC) 的治疗,会影响治疗的有效性.
- 粘附生物测量,例如药物代谢物度,与自我报告的粘附相比,提供更高的准确性.
- 研究新的血液基因表来定量细胞内代谢物,如二酸盐 (TFVdp) 和FTC三酸盐 (FTCtp),对于优化粘附估计至关重要.
研究的目的:
- 评估不同的血液矩阵来测量TFVdp和FTCtp,以改善TDF/FTC的坚持估计.
- 为了比较中期和长期粘附生物测量的准确性.
- 为了确定最佳的血液矩阵来预测稳定和不断变化的粘附模式.
主要方法:
- 采用液体染色学-并联质谱法 (LC-MS/MS) 来量化TFVdp和FTCtp在干血斑点,微样本,包装细胞层和外周血液单核细胞 (PBMC) 中.
- 使用非分组分析来估计半衰期和积累率等药物动力学参数.
- 开发回归模型以确定与特定剂量频率 (<4和≥4剂/周) 相关的药物度值.
主要成果:
- 终端半衰期估计区分了中期 (PBMC中的FTCtp,TFVdp) 和长期 (红细胞矩阵中的TFVdp) 的措施.
- 当考虑两种代谢物时,模型衍生的值准确地分类了14天和28天期间的坚持 (分别为81%-91%和82%-85%).
- 干血斑在预测稳定粘附性和适度准确性 (42%-47%) 中表现出最高的准确性 (74%-94%),在改变粘附性模式方面表现出中度准确性 (42%-47%).
结论:
- 中期坚持生物测量对14天的坚持进行分类比28天的长期测量更准确.
- 结合中期和长期的生物测量,可以更好地预测稳定和动态的坚持模式.
- 干燥的血斑代表了评估TDF/FTC遵守的最准确的矩阵.
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