YU Hengyi,XU Yanjiao,XIANG Dong,et al.Simultaneous determination of lacosamide and perampanel concentration in human plasma by LC-MS/MS[J].ZHONGGUO YAOFANG,2023,34(16):1979-1983.
YU Hengyi,XU Yanjiao,XIANG Dong,et al.Simultaneous determination of lacosamide and perampanel concentration in human plasma by LC-MS/MS[J].ZHONGGUO YAOFANG,2023,34(16):1979-1983. DOI: 10.6039/j.issn.1001-0408.2023.16.11.
Simultaneous determination of lacosamide and perampanel concentration in human plasma by LC-MS/MS
To establish a method for simultaneous determination of two third-generation anti-epileptic medicines such as lacosamide and perampanel in human plasma and apply this method in clinical practice.
METHODS
2
Using clozapine as internal standard, the concentrations of lacosamide and perampanel of plasma samples in 10 epileptic patients were determined by LC-MS/MS after protein precipitation with acetonitrile and dilution with acetonitrile-water (20∶80,
V
/
V
), and the plasma minimum concentrations were obtained by dilution of multiple. The determination was performed on Welch Ultimate XB-C
18
column, with mobile phase A consisted of 10 mmol/L ammonium formate and mobile phase B consisted of methanol-acetonitrile-isopropanol (0.2% formic acid) mixed solution (7∶1.5∶1.5,
V
/
V
/
V
) for gradient elution at the flow rate of 0.4 mL/min. The column temperature was set at 40 ℃, and the sample size was 5 μL. The electrospray ion source and multi-reaction monitoring mode were used for positive iron scanning. The ion pair used for quantitative analysis of lacosamide, perampanel and internal standard were
m
/
z
251.2→144.1,
m
/
z
350.2→219.2 and
m
/
z
327.2→270.0, respectively.
RESULTS
2
The linear ranges of lacosamide and perampanel were 0.001 25-0.125 μg/mL(
r
>0.99), 0.037 5-3.75 ng/mL (
r
>0.99); the limits of quantification were 0.001 25 μg/mL and 0.037 5 ng/mL, respectively. The precision and accuracy within and between batches, extraction recovery rate, matrix effect, and stability all met relevant requirements. The minimum concentrations of lacosamide in No.1-5 patients were 5.3-12.2 μg/mL, and the minimum concentrations of perampanel in No.6-10 patients were 208-510 ng/mL, respectively.
CONCLUSIONS
2
The established method is simple, rapid and suitable for the therapeutic drug monitoring of lacosamide and perampanel.
关键词
Keywords
references
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