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米氮平稳态谷浓度及剂量校正血药浓度的特征与影响因素分析
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          张 泽 ,赵梦强 ,于瑞妍 ,王溢媛 ,赵媛媛 ,于 静 ,周春华 (1. 河北医科大学第二医院鹿泉院区
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          药学部,石家庄 050200;2.河北医科大学第一医院临床药学部,石家庄 050031;3.河北省人工智能临床药学
          技术创新中心,石家庄 050031)
          中图分类号  R969      文献标志码  A      文章编号  1001-0408(2026)06-0776-06
          DOI  10.6039/j.issn.1001-0408.2026.06.14

          摘   要  目的  分析米氮平稳态谷浓度及剂量校正血药浓度(C/D)的分布特征,并探讨临床及遗传因素对C/D的影响。方法  回顾
          性选择河北医科大学第一医院2022年5月至2025年5月接受米氮平治疗并完成治疗药物监测的抑郁症住院患者为研究对象。收
          集患者的性别、年龄、体重指数、日给药剂量、稳态谷浓度、吸烟状态、肝病史、药品类型、联合用药情况以及CYP2D6代谢表型等资
          料,并计算C/D;采用Spearman等级相关分析探究米氮平稳态谷浓度与日给药剂量的关系;采用单因素分析和多元线性回归模型
          筛选可能影响米氮平C/D的因素。结果  共纳入226例患者,其米氮平日给药剂量为25.00(24.82,30.00)mg/d,稳态谷浓度为44.46
         (20.00,70.00)ng/mL,C/D为1.83(1.00,2.00)(ng·d)/(mL·mg)。121例患者(53.54%)的稳态谷浓度处于参考范围(30~80 ng/mL)
          内,80例(35.40%)低于参考范围下限,25例(11.06%)高于参考范围上限。米氮平稳态谷浓度与日给药剂量呈正相关(决定系数=
          0.320 8,P<0.001),性别、吸烟状态及CYP2D6代谢表型与米氮平C/D显著相关(P<0.05)。结论  米氮平稳态谷浓度个体差异明
          显;性别、吸烟状态、CYP2D6代谢表型为米氮平C/D的独立影响因素,其中女性、不吸烟、中间代谢型患者的C/D更高。
          关键词  米氮平;稳态谷浓度;剂量校正血药浓度;CYP2D6代谢表型;治疗药物监测

          Analysis of the characteristics and influencing factors of mirtazapine steady-state trough concentration and
          concentration-to-dose ratio
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          ZHANG Ze ,ZHAO Mengqiang ,YU Ruiyan ,WANG Yiyuan ,ZHAO Yuanyuan ,YU Jing ,ZHOU
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          Chunhua (1.  Dept.  of  Pharmacy,  Luquan  Branch,  the  Second  Hospital  of  Hebei  Medical  University,
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          Shijiazhuang  050200,  China;2.  Dept.  of  Clinical  Pharmacy,  the  First  Hospital  of  Hebei  Medical  University,
          Shijiazhuang  050031,  China;3.  Hebei  Technology  Innovation  Center  of  Artificial  Intelligence  for  Clinical
          Pharmacy, Shijiazhuang 050031, China)
          ABSTRACT    OBJECTIVE  To  analyze  the  distribution  characteristics  of  mirtazapine  steady-state  trough  concentration  and
          concentration-to-dose  ratio (C/D),  and  to  investigate  the  influence  of  clinical  and  genetic  factors  on  C/D.  METHODS  A
          retrospective  study  was  conducted  on  hospitalized  patients  with  depression  who  received  mirtazapine  treatment  and  underwent
          therapeutic  drug  monitoring  at  the  First  Hospital  of  Hebei  Medical  University  from  May  2022  to  May  2025.  The  collected  data
          included  patients’  gender,  age,  body  mass  index,  daily  dose,  steady-state  trough  concentration,  smoking  status,  history  of  liver
          disease,  drug  type,  concomitant  medications,  and  CYP2D6  metabolic  phenotype.  The  C/D  was  calculated.  Spearman  rank
          correlation  was  used  to  analyze  the  relationship  between  mirtazapine  steady-state  trough  concentration  and  daily  dose.  Univariate
          analysis  and  multiple  linear  regression  model  were  employed  to  screen  the  factors  potentially  influencing  the  C/D  of  mirtazapine.
          RESULTS A  total  of  226  patients  were  included. The  daily  dose  of  mirtazapine  was  25.00 (24.82,  30.00)  mg/d,  the  steady-state
          trough concentration was 44.46 (20.00, 70.00) ng/mL, and the C/D was 1.83 (1.00, 2.00) (ng·d)/(mL·mg). Steady-state trough
          concentrations  were  within  the  reference  range (30-80  ng/mL)  in  121  patients (53.54%),  below  the  lower  limit  in  80  patients
         (35.40%), and above the upper limit in 25 patients (11.06%). A positive correlation was observed between mirtazapine steady-state
          trough  concentration  and  daily  dose (coefficient  of  determination  was  0.320  8,  P<0.001).  Gender,  smoking  status,  and  CYP2D6
          metabolic phenotype were significantly associated with the mirtazapine C/D (P<0.05). CONCLUSIONS Significant interindividual
          variability  exists  in  mirtazapine  steady-state  trough  concentrations.  Gender,  smoking  status,  and  CYP2D6  metabolic  phenotype  are
                                                              identified  as  independent  influencing  factors  for  the
              Δ 基金项目 河北省重大科技支撑计划项目(No.252W7701D);河
                                                              mirtazapine  C/D,  with  higher  C/D  ratios  observed  in  females,
          北省2025年政府资助临床医学优秀人才项目(No.ZF2025040)
             *第一作者 主管药师,硕士研究生。研究方向:个体化治疗、抗抑                   non-smokers, and intermediate metabolizers.
          郁药物研究。E-mail:359502111@qq.com                       KEYWORDS    mirtazapine;  steady-state  trough  concentration;
              # 通信作者 主任药师,博士生导师,博士。研究方向:个体化治                  concentration-to-dose  ratio;  CYP2D6  metabolic  phenotype;
          疗、药物基因组学、临床药理学。E-mail:zhouchunhua@hebmu.edu.cn      therapeutic drug monitoring


          · 776 ·    China Pharmacy  2026 Vol. 37  No. 6                               中国药房  2026年第37卷第6期
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