Food effect on the pharmacokinetics of entecavir from dispersible tablets following oral administration in healthy Chinese volunteers

Qing-Hua Zhang, Jin Yang, Ying He, Fang Liu, Ji Ping Wang, Andrew Keith Davey

Research output: Contribution to journalArticleResearchpeer-review

15 Citations (Scopus)


Objective: The aim of the present study was to assess the effect of food on the pharmacokinetics of entecavir (CAS 142217-69-4) from dispersible tablets. Methods: In an open-label, two-way crossover study, 12 healthy Chinese volunteers randomly received a single oral dose of 1 mg entecavir dispersible tablets under fasted and fed conditions. Blood samples were collected and determined for pharmacokinetic analyses. A solid phase extraction for sample preparation and a LC/MS method were developed and validated for determination of entecavir in human plasma. Results: The absorption of entecavir from dispersible tablets was altered significantly with food intake, as evidenced by a decrease in Cmax of 63%, a decrease in AUC0-t of 22%, and a delay in Tmax of 1.5 h. The calibration curve was linear from 0.2 to 25 ng/mL, with a lower limit of quantitation (LLOQ) of 0.2 ng/mL. Conclusion: Food intake has an obvious effect on the absorption of entecavir from dispersible tablets. It is better to take entecavir dispersible tablets on an empty stomach.

Original languageEnglish
Pages (from-to)640-644
Number of pages5
JournalArzneimittel-Forschung-Drug Research
Issue number10
Publication statusPublished - 2010
Externally publishedYes


  • Antiviral agents
  • CAS 142217-69-4
  • Entecavir, dispersible tablets, food effects, pharmacokinetics

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