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·药物与临床·

        LC-MS/MS法测定人血浆中吡咯替尼的浓度及其临床应用                                                             Δ


              *
        赵振寰 ,荆伟丽,刘 涛,吕志强,曹志红,徐 文(青岛大学附属医院药学部,山东 青岛 266003)
                                                    #
        中图分类号 R917          文献标志码 A          文章编号 1001-0408(2021)22-2767-05
        DOI  10.6039/j.issn.1001-0408.2021.22.14
        摘  要   目的:建立测定吡咯替尼血药浓度的方法,并应用于临床。方法:血浆样本经甲醇沉淀蛋白后,以伊马替尼为内标,采用
        液相色谱-串联质谱(LC-MS/MS)法测定。以Ultimate AQ-C18为色谱柱,以甲醇(含0.1%甲酸)-水(0.1%甲酸)为流动相进行梯度
        洗脱,流速为0.4 mL/min,柱温为40 ℃,进样量为5 µL。离子源为电喷雾离子源,以多反应监测模式进行正离子扫描,用于定量分
        析的离子对分别为m/z 583.4→138.3(吡咯替尼)、494.5→393.4(内标)。选择2020年6-11月于青岛大学附属医院接受吡咯替尼
        治疗的乳腺癌患者30例,测定其用药1周后的吡咯替尼稳态谷浓度。结果:吡咯替尼检测质量浓度的线性范围为5~300 ng/mL
       (r=0.999 3),定量下限为 5 ng/mL;日内、日间 RSD 均不高于 9.30%,相对误差为-6.70%~5.04%;稳定性试验的相对误差为
        -1.92%~5.42%;提取方法、基质效应、残留效应均不影响待测物的定量分析。30例乳腺癌患者体内吡咯替尼的稳态谷浓度为
        32.6~82.8 ng/mL,平均血药浓度为53.8 ng/mL,存在2.54倍的个体差异。结论:所建LC-MS/MS法操作简便、灵敏度和准确度较
        高,可用于乳腺癌患者体内吡咯替尼的血药浓度监测。
        关键词 吡咯替尼;液相色谱-串联质谱法;伊马替尼;乳腺癌;血药浓度监测
        Determination of Pyrrotinib Concentration in Human Plasma by LC-MS/MS and Its Clinical Application
        ZHAO Zhenhuan,JING Weili,LIU Tao,LYU Zhiqiang,CAO Zhihong,XU Wen(Dept. of Pharmacy,the
        Affiliated Hospital of Qingdao University,Shandong Qingdao 266003,China)

        ABSTRACT    OBJECTIVE:To establish a method for the determination of pyrrotinib concentration in plasma,and apply it in
        clinic. METHODS:After precipitated with methanol,the plasma sample was determined by LC-MS/MS using imatinib as internal
        standard. The determination was performed on Ultimate AQ-C18 column with mobile phase consisted of methanol(containing 0.1%
        formic acid)and water(containing 0.1% formic acid)(gradient elution)at the flow rate of 0.4 mL/min. The column temperature
        was 40 ℃,and the sample size was 5 µL. The ion source was electrospray ionization source,and the positive ion scanning was
        carried out in multiple reaction mode. The ion pairs for quantitative analysis were m/z 583.4→138.3(pyrrotinib)and m/z 494.5→
        393.4(internal standard),respectively. Thirty breast cancer patients taking pyrrotinib were collected from the Affiliated Hospital of
        Qingdao University during Jun.-Nov. 2020 to determine their steady-state trough concentrations of pyrrotinib after a week of
        treatment. RESULTS:The linear range of pyrrotinib were 5-300 ng/mL(r=0.999 3). The lower limit of quantification was 5 ng/mL.
        RSDs of intra-day and inter-day were not higher than 9.30%,and relative errors(REs)ranged -6.70%-5.04%. REs of stability
        tests were in the range of -1.92%-5.42%. The extraction method,matrix effect and residual effect did not affect the quantitative
        analysis of the substance to be tested. The steady-state trough concentrations of pyrrotinib were 32.6-82.8 ng/mL,with an average
        plasma concentration of 53.8 ng/mL;there was about 2.54 fold individual difference. CONCLUSIONS:Established LC-MS/MS
        method is simple,sensitive and accurate,and can be used for the plasma concentration monitoring of pyrrotinib in breast cancer
        patient.
        KEYWORDS    Pyrrotinib;LC-MS/MS;Imatinib;Breast cancer;Plasma concentration monitoring

            乳腺癌是威胁女性健康的常见恶性肿瘤之一,其发                         HER2)表达呈阳性,其肿瘤侵袭性强、预后差                      [2 - 3] 。
        病率在女性恶性肿瘤患者中排第 1 位,病死率排第 2                         HER2靶向治疗药物(如曲妥珠单抗等)的上市应用明显
        位 。有研究指出,15%~30%的乳腺癌患者的表皮生                         改善了患者的预后,显著延长了患者的生存期 。但是
          [1]
                                                                                                    [4]
        长因子受体2(human epidermal growth factor receptor 2,   在这些靶向药物的使用过程中,有部分患者出现了无法
                                                                                                [5]
           Δ 基金项目:山东省自然科学基金资助项目(No.ZR2017MH045);           耐受的情况,严重影响了临床治疗的效果 。吡咯替尼
        山东省中医药科技发展计划项目(No.2019-0394);山东省医学会治疗              是我国自主研发的小分子不可逆酪氨酸激酶抑制剂,适
        药物监测科研基金项目(No.YXH2020ZX042)
                                                           用于 HER2 阳性患者,包括既往使用其他靶向药物反应
           *副主任药师,硕士。研究方向:临床药理学。电话:0532-                                [6]
                                                           性不强的患者 。该药于 2018 年 8 月获批上市,多项临
        82919360。E-mail:1994262769@qq.com
                                                           床研究已证实,其用于治疗既往未接受或接受过曲妥珠
           # 通信作者:主任药师,博士。研究方向:药物代谢与个体化给
        药。电话:0532-82911767。E-mail:xuwen78@126.com          单抗的复发或转移性HER2阳性乳腺癌患者具有良好的

        中国药房    2021年第32卷第22期                                            China Pharmacy 2021 Vol. 32 No. 22  ·2767 ·
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