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小分子抑制剂SYHA1809在比格犬体内的药动学研究
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刘晓琳 1, 2* ,杨汉煜 ,王小彦 ,康 凯 ,梁 敏 [1.河北医科大学药学院,石家庄 050011;2.石药中奇制药
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(石家庄)有限公司,石家庄 050035]
中图分类号 R969.1 文献标志码 A 文章编号 1001-0408(2023)17-2085-05
DOI 10.6039/j.issn.1001-0408.2023.17.07
摘 要 目的 研究小分子抑制剂SYHA1809在比格犬体内的药动学。方法 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 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,t1/2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tmax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cmax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
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。
关键词 小分子抑制剂;SYHA1809;液相色谱-串联质谱法;药动学
Pharmacokinetic study of small molecule inhibitor SYHA1809 in Beagle dogs
LIU Xiaolin ,YANG Hanyu ,WANG Xiaoyan ,KANG Kai ,LIANG Min [1. College of Pharmacy, Hebei
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Medical University, Shijiazhuang 050011, China;2. CSPC Zhongqi Pharmaceutical (Shijiazhuang) Co., Ltd.,
Shijiazhuang 050035, China]
ABSTRACT OBJECTIVE To study the pharmacokinetics of small molecule inhibitor SYHA1809 in Beagle dogs. METHODS
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 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 t1/2 was (3.35±1.36) h; after single intragastric administration of low-dose, medium-dose and high-dose of
SYHA1809, average tmax 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 cmax 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 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.
KEYWORDS small molecule inhibitor; SYHA1809; LC-MS/MS; pharmacokinetics
贫血是慢性肾病(chronic kidney disease,CKD)的一
Δ 基金项目 河北省科技研发平台建设专项(No.199676133H) 种常见并发症,可降低患者的免疫力,影响患者的生活
*第一作者 硕士。研究方向:体内药物代谢动力学。E-mail: [1]
质量,甚至会增加血管疾病和死亡的风险 。美国心脏
liuxiaolin6101998@163.com
[2]
协会表示贫血是CKD患者的非传统心血管危险因素 。
# 通信作者 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 由 于 红 细 胞 生 成 刺 激 剂(erythropoiesis-stimulating
中国药房 2023年第34卷第17期 China Pharmacy 2023 Vol. 34 No. 17 · 2085 ·