移植后早期血中塔克罗利斯度的种族差异:一项回顾性观察性研究
Eilidh C Thomas1, David W Randall2,3, Muhammad A Khurram1,4
1Department of Renal Medicine and Transplantation, Royal London Hospital, Barts Health NHS Trust, Whitechapel Road, E14 1FR, London, UK.
BMC nephrology
|August 7, 2025
概括
黑人移植接受者通常具有亚治疗性塔克罗利马斯水平,增加了排斥风险. 需要个性化剂量策略,以确保最佳的免疫抑制,并改善这种人群的移植结果.
科学领域:
- 药物基因组学和移植学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 免疫抑制疗法是一种免疫抑制疗法.
背景情况:
- 移植中心经常使用统一的塔克罗利斯剂量策略,无论患者的种族.
- CYP3A5表达体的状态,影响着塔克罗利斯的新陈代谢,在不同种族群体之间有很大的差异.
研究的目的:
- 为了研究种族对移植患者的塔克罗利血度的影响.
- 为了确定在实现移植后目标塔克罗利斯水平的种族差异.
主要方法:
- 在382名脏移植接受者的血中塔克罗利斯度和剂量的回顾性分析.
- 数据按自我描述的患者种族分层.
主要成果:
- 与其他族群相比,黑人患者在移植后的最初四周内表现出较低的中位数塔克罗利斯度.
- 超过70%的黑人患者在前两周内有亚治疗性塔克罗利斯水平,黑人种族与早期低剂量强烈相关 (OR3.49,p<0.001).
- 尽管黑人患者的急性排斥率较高,但整体移植结果在种族之间没有显著差异.
结论:
- 有证据表明,根据CYP3A5基因型定制或在黑人患者中使用更高的初始剂量来定制塔克罗利斯剂量.
- 建议采取主动的临床策略,以防止黑人移植患者的塔克罗利斯剂量不足.
- 解决tacrolimus药理动学的种族差异对于优化免疫抑制和移植成功至关重要.
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