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1.河北医科大学药学院,石家庄;050011
2.石药中奇制药(石家庄)有限公司,石家庄 050035
硕士。研究方向:体内药物代谢动力学。E-mail:liuxiaolin6101998@163.com
正高级工程师,硕士。研究方向:体内药物代谢动力学。E-mail:yanghanyu@cspc.cn
收稿日期:2023-02-13,
修回日期:2023-07-25,
录用日期:2023-07-25,
纸质出版日期:2023-09-15
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刘晓琳,杨汉煜,王小彦,等.小分子抑制剂SYHA1809在比格犬体内的药动学研究[J].中国药房,2023,34(17):2085-2089.
LIU Xiaolin,YANG Hanyu,WANG Xiaoyan,et al.Pharmacokinetic study of small molecule inhibitor SYHA1809 in Beagle dogs[J].ZHONGGUO YAOFANG,2023,34(17):2085-2089.
刘晓琳,杨汉煜,王小彦,等.小分子抑制剂SYHA1809在比格犬体内的药动学研究[J].中国药房,2023,34(17):2085-2089. DOI: 10.6039/j.issn.1001-0408.2023.17.07.
LIU Xiaolin,YANG Hanyu,WANG Xiaoyan,et al.Pharmacokinetic study of small molecule inhibitor SYHA1809 in Beagle dogs[J].ZHONGGUO YAOFANG,2023,34(17):2085-2089. DOI: 10.6039/j.issn.1001-0408.2023.17.07.
目的
2
研究小分子抑制剂SYHA1809在比格犬体内的药动学。
方法
2
采用液相色谱-串联质谱(LC-MS/MS)法进行测定。将比格犬随机分为单次静脉给药组(3.75 mg/kg)、单次低剂量灌胃组(3.75 mg/kg)、单次中剂量灌胃组(7.5 mg/kg)、单次高剂量灌胃组(15 mg/kg)和多次灌胃组(7.5 mg/kg,每天1次,连续7 d),每组6只,雌雄各半。各组比格犬按照设定的时间点收集血浆样品,经预处理后进行LC-MS/MS定量分析,获得的数据采用Phoenix WinNonlin 8.0软件计算药动学参数。
结果
2
SYHA1809静脉注射给药后,在比格犬体内的CL为(2.70±0.48) mL/(min·kg),稳态分布体积为0.757 L/kg,
t
1/2
为(3.35±1.36) h;单次灌胃给予低、中、高剂量的SYHA1809后,其在比格犬体内的平均
t
max
为(0.53±0.02) h,血药浓度随给药剂量的增加而升高;单次灌胃给予3.75 mg/kg的SYHA1809后,绝对生物利用度为83.5%;在3.75~15 mg/kg剂量范围内,SYHA1809的
c
max
和AUC增加与剂
量呈正相关;SYHA1809连续以7.5 mg/kg灌胃7 d后,与同剂量单次灌胃给药后的药动学参数相当,差异无统计学意义(
P
>0.05)。
结论
2
SYHA1809在比格犬体内吸收迅速,血药浓度呈剂量依赖性,生物利用度高,多次灌胃给药后无明显蓄积,药动学行为良好。
OBJECTIVE
2
To study the pharmacokinetics of small molecule inhibitor SYHA1809 in Beagle dogs.
METHODS
2
LC-MS/MS method was adopted. Beagle dogs were randomly divided into single intravenous administration group (3.75 mg/kg), single low-dose intragastric administration group (3.75 mg/kg), single medium-dose intragastric administration group (7.5 mg/kg), single high-dose intragastric administration group (15 mg/kg) and multiple intragastric administration group (7.5 mg/kg, once a day, for 7 consecutive days), with 6 dogs in each group, half male and half female. The plasma samples of Beagle dogs were collected in each group according to the set time point, and underwent LC-MS/MS quantitative analysis after preprocessing. The pharmacokinetic parameters were calculated by using Phoenix WinNonlin 8.0 software using obtained data.
RESULTS
2
After intravenous injection, CL of SYHA1809 in Beagle dogs was (2.70±0.48) mL/(min·kg), steady-state distribution volume was 0.757 L/kg, and
t
1/2
was (3.35±1.36) h; after single intragastric administration of low-dose, medium-dose and high-dose of SYHA1809, average
t
max
was (0.53±0.02) h, and the blood drug concentration increased with the increase of dose; after single intragastric administration of 3.75 mg/kg SYHA1809, the absolute bioavailability was 83.5%; within the dose range of 3.75-15 mg/kg, the increase in
c
max
and AUC of SYHA1809 was positively correlated with the dose; after intragastric administration of 7.5 mg/kg SYHA1809 for 7 consecutive days, the pharmacokinetic parameters of SYHA1809 were comparable to those of a single intragastric administration of
the same dose, with no statistically significant difference (
P
>0.05).
CONCLUSIONS
2
SYHA1809 is absorbed rapidly in Beagle dogs, shows the dose-dependent blood concentration, high bioavailability, no obvious accumulation after multiple intragastric administration, and good pharmacokinetic behavior.
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