在儿科急性淋巴细胞白血病中高剂量甲状腺素诱导毒性的剂量调整策略:基于人群PK分析和暴露毒性关系
Ailing Cao1, Yanping Guan1, Jian Wang2
1Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong Province, China.
Cancer chemotherapy and pharmacology
|February 15, 2025
概括
对急性淋巴细胞白血病 (ALL) 的高剂量甲状腺素 (HD-MTX) 治疗可能会导致严重的毒性. 根据患者特定的MTX C24h和AUC0-24h水平来个性化HD-MTX剂量,可以显著改善安全性和临床结果.
科学领域:
- 药理学 药理学是指药理学的学科.
- 在瘤学瘤学.
- 临床药房 临床药房
背景情况:
- 高剂量甲状腺素 (HD-MTX) 是急性淋巴细胞白血病 (ALL) 的关键治疗方法.
- 严重的不良事件是常见的HD-MTX尽管标准的支持性护理.
- 需要个性化剂量策略来提高患者的安全性.
研究的目的:
- 开发一种新的策略,以在ALL患者中个性化HD-MTX治疗.
- 为了确定HD-MTX相关毒性的可靠预测因素.
- 为了提高HD-MTX治疗的安全性.
主要方法:
- 在134名ALL患者中对461个HD-MTX治疗疗程进行了回顾性分析.
- 在接受标准支持性护理的患者中对毒性的评估.
- 种群药动力学 (PK) 建模以模拟基于暴露毒性关系的剂量调整.
主要成果:
- 观察到严重毒性的高发病率 (78.1%).
- MTX C24h水平> 75μmol/L预测了骨髓抑制和肝损伤 (P < 0.001).
- MTX AUC0-24h水平> 1447 μmol/L·h与随后的周期骨髓抑制有关 (P = 0.004).
结论:
- MTX C24h和AUC0-24h水平是HD-MTX毒性的重要预测指标.
- 建议采用一种新的剂量调整策略,根据风险分层,将剂量减少到2-3g/m2.
- 这种个性化的方法旨在提高患者的安全性,并优化ALL治疗中的治疗效益.
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