Liquid-chromatographic determination of erlotinib (OSI-774), an epidermal growth factor receptor tyrosine kinase inhibitor

Erin R. Lepper, Sandra M. Swain, Antoinette R. Tan, William D. Figg*, Alex Sparreboom

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

56 Scopus citations


A high-performance liquid-chromatographic (HPLC) assay with UV detection has been developed for the quantitative determination of erlotinib (OSI-774) in human plasma. Quantitative extraction was achieved by a single-solvent extraction involving a mixture of acetonitrile and n-butyl chloride (1:4, v/v). Erlotinib and the internal standard hydrochloride salt (OSI-597) were separated on a column packed with Nova-Pak C18 material and a mobile phase composed of acetonitrile and water, pH 2.0 (60:40, v/v). The column effluent was monitored with dual UV detection at wavelengths of 348nm (erlotinib) and 383nm (OSI-597). The calibration graph was linear in the range of 100-4500ng/ml, with values for accuracy and precision ranging from 87.9 to 96.2% and 2.13 to 5.10%, respectively, for three different sets of quality control samples. The developed method was successfully applied to study the pharmacokinetics of erlotinib in a cancer patient at the recommended daily dose of 150mg.

Original languageEnglish
Pages (from-to)181-188
Number of pages8
JournalJournal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
Issue number1
StatePublished - 25 Oct 2003
Externally publishedYes


  • Erlotinib
  • OSI-774
  • Pharmacokinetics


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