Quick Search:

uzh logo
Browse by:

Zurich Open Repository and Archive

Rentsch, K M; Schwendener, R; Schott, H; Hänseler, E (1997). Pharmacokinetics of N4-octadecyl-1-beta-D-arabinofuranosylcytosine in plasma and whole blood after intravenous and oral administration to mice. Journal of Pharmacy and Pharmacology, 49(11):1076-1081.

Full text not available from this repository.

View at publisher


N4-octadecyl-1-beta-D-arabinofuranosylcytosine (NOAC) is a new cytotoxic derivative of cytosine arabinoside with improved cytotoxic activity and stability against deamination. Its pharmacokinetics were studied in mice. The drug was administered intravenously and orally to ICR mice to assess its pharmacokinetic parameters in plasma and whole blood. The lipophilic drug was administered in small unilamellar liposomes 100-400 nm in diameter. The concentrations of NOAC in plasma and erythrocytes were determined by high-performance liquid chromatography (HPLC). When given orally a rather low amount of the delivered NOAC was absorbed as the unchanged drug, resulting in a bioavailability of 1.1% from the plasma and 12.9% from whole blood. As shown elsewhere, the amount of drug absorbed is sufficient to provide excellent cytotoxic activity in the L1210 leukemia and in human xenograft models after oral administration. The mean residence time of NOAC after intravenous administration was 3.5 h in plasma and 6 h in whole blood giving NOAC a terminal half-life in blood substantially longer than that of cytosine arabinoside. After oral administration the mean residence time was 18 h in plasma and whole blood. In summary, NOAC has a prolonged half-life after intravenous administration compared with cytosine arabinoside. The distribution of NOAC in blood is highly dependent on its mode of administration.


8 citations in Web of Science®
6 citations in Scopus®
Google Scholar™


Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Molecular Cancer Research
07 Faculty of Science > Institute of Molecular Cancer Research
Dewey Decimal Classification:570 Life sciences; biology
Deposited On:29 Jul 2009 13:17
Last Modified:05 Apr 2016 13:18
Publisher:Pharmaceutical Press
Publisher DOI:10.1111/j.2042-7158.1997.tb06045.x
PubMed ID:9401941

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page