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肾移植受者早期霉酚酸暴露量估算模型研究
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张寒娟 ,丁建强 ,韩文超 ,陈永妍 ,王高彪 ,丁 蕊 ,袁冬冬 (1. 郑州市第七人民医院药学部,郑州
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450016;2.武警河南总队医院药学部,郑州 450052)
中图分类号 R969 文献标志码 A 文章编号 1001-0408(2023)20-2530-05
DOI 10.6039/j.issn.1001-0408.2023.20.15
摘 要 目的 建立肾移植早期受者体内霉酚酸(MPA)暴露量[以 12 h 内血药浓度-时间曲线下面积(AUC0-12 h )计]的估算模型。
方法 选择20例接受吗替麦考酚酯(MMF)+他克莫司+甲泼尼龙三联免疫抑制治疗的肾移植受者,分别于术后第15天口服吗替麦
考酚酯分散片(750 mg,q12 h)前及服药后0.5、1.0、1.5、2.0、3.0、4.0、6.0、8.0、12.0 h采集血样,测定MPA血药浓度,计算MPA的药
动学参数;采用多元线性逐步回归分析法,拟合估算受者人群体内 MPA-AUC0-12 h的有限采样法简化计算公式,并采用 Bland-
Altman方法评价该公式与经典药动学方法之间的一致性。结果 20例受者MPA的给药前血药浓度(c0 )为(1.53±0.84)μg/mL,药
峰浓度(cmax )为(12.07±5.97)μg/mL,半衰期(t1/2 )为(5.41±3.67)h,药峰时间(tmax )为(1.58±0.75)h,fAUC0-12 h (按经典药动学方法计
算出的 AUC0-12 h )为(33.95±13.40)μg·h/mL。使用“4.0、8.0、12.0 h”三点采样估算 MPA-AUC0-12 h的简化计算公式为 AUC0-12 h=
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12.058+2.819c4.0+7.045c8.0+3.879c12.0 (R =0.934),预测值与fAUC0-12 h有很好的相关性及一致性,95.0%的预测值在x±1.96SD(标准
差)范围内。结论 成功建立了肾移植受者早期MPA暴露量估算模型,且该模型有较好的预测精度,并具有采样点少的优势。
关键词 霉酚酸;暴露量;肾移植;药动学;有限采样法;预测模型
Estimation model for the exposure of mycophenolic acid in early renal transplant recipients
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ZHANG Hanjuan ,DING Jianqiang ,HAN Wenchao ,CHEN Yongyan ,WANG Gaobiao ,DING Rui ,YUAN
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Dongdong(1. Dept. of Pharmacy, Zhengzhou No.7 People’s Hospital, Zhengzhou 450016, China;2. Dept. of
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Pharmacy, Henan General Hospital of Armed Police, Zhengzhou 450052, China)
ABSTRACT OBJECTIVE To establish the estimation model for the exposure of mycophenolic acid (MPA) in early renal
transplant recipients [calculated by the area under the plasma concentration-time curve with 12 h (AUC0-12 h )]. METHODS Twenty
kidney transplant recipients, who received triple immunosuppressive therapy of mycophenolate mofetil (MMF)+tacrolimus+
methylprednisolone, were selected and given MMF dispersible tablets (750 mg, q12 h) on the 15th day after the operation; the
blood samples were collected from the patients before and 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0, 12.0 hours after the
administration, respectively. The blood concentration of MPA was determined, and the pharmacokinetic parameters of MPA were
calculated. The multivariate linear stepwise regression analysis method was used to fit an estimation formula for the finite sampling
method suitable for MPA-AUC0-12 h of the recipients. Bland-Altman analysis was used to evaluate the agreement between the
estimation formula and the classical pharmacokinetic method. RESULTS The main pharmacokinetic parameters of MPA in 20 renal
transplant recipients: c0 was (1.53±0.84) μg/mL, cmax was (12.07±5.97) μg/mL, t1/2 was (5.41±3.67) h, tmax was (1.58±0.75)
h, and the average AUC0-12 h calculated by the classical pharmacokinetic method was (33.95±13.40) μg·h/mL. MPA-AUC0-12 h was
estimated with sampling points of “4.0, 8.0, 12.0 h”; the simplified calculation formula was AUC0-12 h=12.058+2.819c4.0+7.045c8.0+
3.879c12.0 (R =0.934). The predicted value had a good correlation and consistency with the measured value, and 95.0% of predicted
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values did not exceed the x±1.96SD (standard deviation) range. CONCLUSIONS The estimation model is established successfully
for the exposure of MPA in early renal transplant recipients; the model has better prediction accuracy and fewer sampling points.
KEYWORDS mycophenolic acid; exposure; renal transplantation; pharmacokinetics; limited sampling strategy; estimation model
吗替麦考酚酯(mycophenolate mofetil,MMF)作为
Δ 基金项目 河 南 省 医 学 科 技 攻 关 计 划 联 合 共 建 项 目(No. 新型抗代谢免疫抑制剂在器官移植中被广泛应用,其口
LHGJ20200732)
服吸收后,可迅速水解为次级代谢产物——霉酚酸(my‐
*第一作者 副主任药师,硕士。研究方向:器官移植受者药物代
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谢动力学。E-mail:zhanghj5605@163.com cophenolic acid,MPA) 。MPA 的血药浓度-时间曲线
· 2530 · China Pharmacy 2023 Vol. 34 No. 20 中国药房 2023年第34卷第20期