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中国临床药理学与治疗学 ›› 2025, Vol. 30 ›› Issue (4): 493-500.doi: 10.12092/j.issn.1009-2501.2025.04.007

• 临床药理学 • 上一篇    下一篇

基于群体药动学模型的阿立哌唑微球给药方案研究

孟庆恒1,韩智慧2,雷琦1,陈斌2,尹霞2,胡海棠2,刘红霞1,郑青山1,许羚1,黄钦2   

  1. 1上海中医药大学药物临床研究中心,上海  201203;2丽珠医药集团股份有限公司,珠海  519000,广东

  • 收稿日期:2025-02-25 修回日期:2025-03-05 出版日期:2025-04-26 发布日期:2025-04-09
  • 通讯作者: 许羚,女,博士,助理研究员,主要从事定量药理学研究。 E-mail: ling.xu@drugchina.net 黄钦,男,博士,首席医学官,主要从事医学和生物统计学研究。 E-mail: huangqin01@livzon.cn
  • 作者简介:孟庆恒,男,硕士研究生,主要从事定量药理学研究。 E-mail: qingheng.meng@drugchina.net 韩智慧,共同第一作者,女,硕士,中级工程师,主要从事临床药理研究。 E-mail: hanzhihui@livzon.cn
  • 基金资助:
    上海市2017年度“科技创新行动计划”项目(17401970900)

Optimizing the dosing regimen of aripiprazole microspheres by population pharmacokinetic modeling and simulation

MENG Qingheng1, HAN Zhihui2, LEI Qi1, CHEN Bin2, YIN Xia2, HU Haitang2, LIU Hongxia1, ZHENG Qingshan1, XU Ling1, HUANG Qin2   

  1. 1Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; 2Lizon Pharmaceutical Group Inc., Zhuhai 519000, Guangdong, China
  • Received:2025-02-25 Revised:2025-03-05 Online:2025-04-26 Published:2025-04-09

摘要:

目的:基于一款新型长效注射用阿立哌唑微球(LZMT05)2项临床试验的血药浓度数据,优选LZMT05的临床剂量和给药方案。方法:196名精神分裂症患者接受LZMT05注射,采集血药浓度数据,并建立群体药动学模型。以口服有效剂量的稳态谷峰浓度区间94.0~534 ng/mL作为治疗窗,设计并模拟多种临床应用场景,选择最优临床治疗方案。结果:LZMT05的药物浓度-时间曲线可用双一级吸收、一级消除的一房室描述。性别、CYP2D6基因型等因素作为协变量引入最终模型。模拟结果显示,稳定使用10 mg阿立哌唑片剂转换为LZMT05 350 mg,每4周给药1次,可以使患者体内阿立哌唑浓度始终维持在治疗窗范围内,而且峰谷波动较小。结论:通过群体药动学建模与模拟,本研究优化的LZMT05给药方案能够保持药物暴露水平位于治疗窗内,提示其具备良好的疗效和安全性。

关键词: 阿立哌唑, 微球, 群体药动学, 建模模拟

Abstract:

AIM: To optimize the clinical dosage and administration regimen of a novel long-acting injectable aripiprazole microsphere (LZMT05) using plasma concentration data from two clinical trials. METHODS: Plasma concentrations were collected from 196 schizophrenia patients administered LZMT05, and a population pharmacokinetic (PopPK) model was developed. The therapeutic window was defined as the steady-state trough-to-peak concentration range (94.0-534 ng/mL) of oral aripiprazole. Multiple clinical scenarios were simulated to identify the optimal regimen. RESULTS: A one-compartment model with dual first-order absorption and first-order elimination characterized LZMT05 pharmacokinetics. Covariates like sex and CYP2D6 genotype were integrated into the final model. Simulations demonstrated that switching from 10 mg oral aripiprazole to 350 mg LZMT05 every 4 weeks sustained concentrations within the therapeutic window with minimal peak-to-trough fluctuations. CONCLUSION: The PopPK-guided optimized LZMT05 regimen maintained drug exposure within the therapeutic window, suggesting favorable efficacy and safety.

Key words: aripiprazole, microspheres, population pharmacokinetics, modeling and simulation

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