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苏北人民医院药学部,江苏 扬州 225001
药师,硕士。研究方向:治疗药物监测。E-mail:jinxiulv2022@163.com
研究员,博士。研究方向:心血管药理学与临床药学。E-mail:hangpengzhou@163.com
收稿日期:2024-07-31,
修回日期:2024-12-25,
录用日期:2025-01-02,
纸质出版日期:2025-02-28
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吕锦绣,颜楠,徐文俊等.7种抗肿瘤药物血药浓度测定方法建立及临床应用 Δ[J].中国药房,2025,36(04):475-481.
LYU Jinxiu,YAN Nan,XU Wenjun,et al.Determination method of plasma concentrations of 7 anti-tumor drugs and its application[J].ZHONGGUO YAOFANG,2025,36(04):475-481.
吕锦绣,颜楠,徐文俊等.7种抗肿瘤药物血药浓度测定方法建立及临床应用 Δ[J].中国药房,2025,36(04):475-481. DOI: 10.6039/j.issn.1001-0408.2025.04.15.
LYU Jinxiu,YAN Nan,XU Wenjun,et al.Determination method of plasma concentrations of 7 anti-tumor drugs and its application[J].ZHONGGUO YAOFANG,2025,36(04):475-481. DOI: 10.6039/j.issn.1001-0408.2025.04.15.
目的
2
建立同时测定人血浆中7种抗肿瘤药物(伊立替康、卡培他滨、紫杉醇、多西他赛、他莫昔芬、来曲唑和甲氨蝶呤)血药浓度的方法并应用于临床。
方法
2
血浆样品以含0.1%甲酸的甲醇-乙腈混合液(1∶1,
V
/
V
)沉淀蛋白后,以各待测成分的氘代同位素为内标,采用液相色谱-串联质谱(LC-MS/MS)技术检测。以Agilent Eclipse Plus C
18
为色谱柱,以水(含0.1%甲酸和0.04% 5 mmol/L甲酸铵)为流动相A相、乙腈(含0.1%甲酸)为流动相B相进行梯度洗脱,流速为0.6 mL/min,柱温为40 ℃,进样量为10 μL,分析时间为5.5 min;采用电喷雾离子源在正、负离子模式下以多反应监测模式进行测定,用于定量分析的离子对分别为
m
/
z
587.1→167.1(伊立替康)、
m
/
z
360.1→244.1(卡培他滨)、
m
/
z
876.4→308.0(紫杉醇)、
m
/
z
830.3→304.2(多西他赛)、
m
/
z
372.1→129.1(他莫昔芬)、
m
/
z
284.1→242.1(来曲唑)、
m
/
z
455.0→308.0(甲氨蝶呤)。选择我院97例恶性肿瘤患者,采用上述方法测定其血浆中7种抗肿瘤药物的血药浓
度。
结果
2
伊立替康、卡培他滨、紫杉醇、多西他赛、他莫昔芬、来曲唑和甲氨蝶呤的线性范围分别为2~ 1 000 ng/mL(
r
=0.994 3)、20~10 000 ng/mL(
r
=0.997 5)、2~1 000 ng/mL(
r
=0.997 9)、1~500 ng/mL(
r
=0.995 8)、1~500 ng/mL(
r
=0.995 2)、1~500 ng/mL(
r
=0.996 4)、10~5 000(
r
=0.997 7);定量下限分别为2、20、2、1、1、1、10 ng/mL;批内精密度的RSD为0.08%~14.86%(
n
=6),批间精密度的RSD为1.51%~11.55%(
n
=3),准确度为89.17%~114.93%(
n
=6);基质效应为89.89%~119.74%(
n
=6);稳定性试验的RSD为1.98%~14.88%(
n
=6)。临床应用结果显示,伊立替康、卡培他滨、紫杉醇、多西他赛的平均血药浓度分别为704.09、909.40、36.45、150.43 ng/mL,变异系数分别为25.24%、62.65%、122.69%、92.27%。
结论
2
所建LC-MS/MS法操作简单、分析时间短,可用于恶性肿瘤患者体内7种常用抗肿瘤药物血药浓度的测定。
OBJECTIVE
2
To establish a method for simultaneous determination of 7 anti-tumor drugs (irinotecan, capecitabine, paclitaxel, docetaxel, tamoxifen, letrozole and methotrexate) in human plasma and apply it to the clinic.
METHODS
2
After precipitating with a methanol-acetonitrile mixture (1∶1,
V
/
V
) containing 0.1% formic acid, liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used to determine the plasma concentration, using deuterium isotopes of each analyte as internal standards. The chromatography was performed on the Agilent Eclipse Plus C
18
column with a gradient elution of water (containing 0.1% formic acid+0.04% 5 mmol/L ammonium formate) as mobile phase A and acetonitrile (containing 0.1% formic acid) as mobile phase B. The flow rate was 0.6 mL/min, and the column temperature was set at 40 ℃. The sample size was 10 μL, and the analysis lasted for 5.5 min. Electrospray ionization was used in positive and negative ion mode, and multiple reaction monitoring mode was used. The ion pairs used for quantitative analysis were
m
/
z
587.1→167.1 (irinotecan),
m
/
z
360.1→244.1 (capecitabine),
m
/
z
876.4→308.0 (paclitaxel),
m
/
z
830.3→304.2 (docetaxel),
m
/
z
372.1→129.1 (tamoxifen),
m
/
z
284.1→242.1 (letrozole), and
m
/
z
455.0→ 308.0 (methotrexate). A total of 97 patients with malignant tumors in our hospital were selected to measure the plasma concentrations of 7 anti-tumor drugs using the above method.
RESULTS
2
The linear ranges of irinotecan, capecitabine, paclitaxel, docetaxel, tamoxifen, letrozole and methotrexate were 2-1 000 ng/mL (
r
=0.994 3), 20-10 000 ng/mL (
r
=0.997 5), 2-1 000 ng/mL (
r
=0.997 9), 1-500 ng/mL (
r
=0.995 8), 1-500 ng/mL (
r
=0.995 2), 1-500 ng/mL (
r
=0.996 4), 10-5 000 (
r
=0.997 7), respectively. The quantitative lower limits were 2, 20, 2, 1, 1, 1 and 10 ng/mL; RSDs of intra-assay precision were 0.08%-14.86% (
n
=6). RSDs of inter-batch precision were 1.51%-11.55% (
n
=3), and the accuracies were 89.17%-114.93% (
n
=6). The matrix effects ranged from 89.89%-119.74% (
n
=6). RSDs of the stability tests were 1.98%-14.88% (
n
=6). The results of clinical application showed, the average plasma concentrations of irinotecan, capecitabine, paclitaxel and docetaxel were 704.09, 909.40, 36.45, 150.43 ng/mL, respectively. The values of the coefficient of variation were 25.24%, 62.65%, 122.69%, and 92.27%.
CONCLUSIONS
2
The established LC-MS/MS method is simple and rapid, and can be used for the simultaneous determination of 7 commonly used anti-tumor drugs in the plasma of patients with malignancy.
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