In vitro and in vivo studies of pharmacokinetics and antitumor efficacy of D07001-F4, an oral gemcitabine formulation

Kuang Yang Hsu, Wei Hua Hao, Jong Jing Wang, Shu Ping Hsueh, Pei Jing Hsu, Li Chien Chang, Chang Shan Hsu

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Purpose: The chemotherapy agent gemcitabine is currently administered intravenously because the drug has poor oral bioavailability. In order to assess the pharmacokinetics and antitumor activity of D07001-F4, a new self-microemulsifying oral drug delivery system preparation of gemcitabine, this study was performed to compare the effect of D07001-F4 with administered gemcitabine in vitro and in vivo. Methods: D07001-F4 pharmacokinetics was examined by evaluation of in vitro deamination of D07001-F4 and gemcitabine hydrochloride by recombinant human cytidine deaminase (rhCDA) and in vivo evaluation of D07001-F4 pharmacokinetics in mice. Antitumor activity was evaluated by comparing the effect of D07001-F4 and gemcitabine hydrochloride in inhibiting growth in nine cancer cell lines and by examining the effect of D07001-F4 and gemcitabine in two xenograft tumor models in mice. Results: In vitro deamination of D07001-F4 by rhCDA was 3.3-fold slower than deamination of gemcitabine hydrochloride. Growth inhibition by D07001-F4 of 7 of the 8 cancer cell lines was increased compared with that seen with gemcitabine hydrochloride, and D07001-F4 inhibited the growth of pancreatic and colon cancer xenografts. In vivo pharmacokinetics showed the oral bioavailability of D07001-F4 to be 34 %. Conclusions: D07001-F4 was effective against several cancer types, was metabolized more slowly than gemcitabine hydrochloride, and exhibited enhanced oral bioavailability.

Original languageEnglish
Pages (from-to)379-388
Number of pages10
JournalCancer Chemotherapy and Pharmacology
Volume71
Issue number2
DOIs
Publication statusPublished - Feb 2013

Keywords

  • Cytidine deaminase
  • D07001-F4
  • Gemcitabine
  • SMEDDS

ASJC Scopus subject areas

  • Cancer Research
  • Oncology
  • Pharmacology
  • Pharmacology (medical)
  • Toxicology

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