A pharmacokinetic study on lapatinib in type 2 diabetic rats

Pharmacological Reports : PR
Agnieszka KarbownikEdmund Grześkowiak

Abstract

Diabetes mellitus (DM) is a complex metabolic disorder which affects the function of numerous tissues and alters the pharmacokinetic parameters of many drugs. As many oncological patients are diabetics, it is important to determine the influence of this chronic disease on the pharmacokinetics (PK) of anticancer drugs. Lapatinib is a tyrosine kinase inhibitor (TKI), approved for the treatment of human epidermal growth factor receptor 2 (HER2)-positive metastatic breast cancer. The aim of the study was to compare the PK of lapatinib in normal and type 2 diabetes mellitus (T2DM) model rats. Additionally, the effect of lapatinib on blood glucose concentrations was examined. The PK of lapatinib was studied in healthy rats (n=6, the healthy group) and T2DM model rats (n=6, the diabetic group). The rats received lapatinib orally as a single dose of 50mg. Plasma concentrations of lapatinib were measured with high-performance liquid chromatography method coupled with a tandem mass spectrometry. The plasma concentrations of lapatinib were increased in the T2DM model rats. There were statistically significant differences between the groups in Cmax (p=0.0104) and AUC0-t (p=0.0265). The reduction of glycaemia in the range of 1.2-41.5% and i...Continue Reading

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Aug 26, 2014·Pharmacological Reports : PR·Edyta SzałekEdmund Grześkowiak
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Aug 27, 2016·Clinical Science·Jeanie B TryggestadSteven D Chernausek

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Citations

Feb 6, 2020·Pharmacological Reports : PR·Agnieszka KarbownikEdyta Szałek

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