Part this study presented in poster format at the ECCO-ESMO Multidisciplinary Cancer Congress, 23–27 September 2011, Stockholm, Sweden.
Pharmacokinetics of eribulin mesylate in patients with solid tumours receiving repeated oral rifampicin
Article first published online: 10 JAN 2013
© 2012 The Authors. British Journal of Clinical Pharmacology © 2012 The British Pharmacological Society
British Journal of Clinical Pharmacology
Volume 75, Issue 2, pages 507–521, February 2013
How to Cite
Devriese, L. A., Witteveen, P. O., Wanders, J., Law, K., Edwards, G., Reyderman, L., Copalu, W., Peng, F., Marchetti, S., Beijnen, J. H., Huitema, A. D. R., Voest, E. E. and Schellens, J. H. M. (2013), Pharmacokinetics of eribulin mesylate in patients with solid tumours receiving repeated oral rifampicin. British Journal of Clinical Pharmacology, 75: 507–521. doi: 10.1111/j.1365-2125.2012.04381.x
- Issue published online: 10 JAN 2013
- Article first published online: 10 JAN 2013
- Accepted manuscript online: 16 JUL 2012 09:39AM EST
- Manuscript Accepted: 23 JUN 2012
- Manuscript Received: 26 JAN 2012
- Eisai Inc
- CYP3A4 induction;
- drug−drug interaction;
- eribulin mesylate;
- microtubule dynamics inhibitor;
Eribulin mesylate is a non-taxane microtubule dynamics inhibitor that was recently approved for treatment of metastatic breast cancer. The aim of this study was to determine the effect of rifampicin, a CYP3A4 inducer, on the plasma pharmacokinetics of eribulin in patients with solid tumours.
An open-label, non-randomized phase I study was carried out. Patients received intravenous 1.4 mg m−2 eribulin mesylate on days 1 and 15 and oral rifampicin 600 mg on days 9 to 20 of a 28 day cycle. Pharmacokinetic sampling for determination of eribulin plasma concentrations was performed up to 144 h following administration. AUC(0,∞) and Cmax for eribulin exposure without or with co-administration of rifampicin were subjected to an analysis of variance (anova) and corresponding 90% confidence intervals (CI) were calculated. Subsequently, patients were allowed to continue eribulin mesylate treatment with 1.4 mg m−2 eribulin mesylate on days 1 and 8 of a 21 day cycle. Also the adverse event profile and anti-tumour activity were assessed.
Fourteen patients were included and 11 patients were evaluable for pharmacokinetic analysis. Co-administration of rifampicin had no effect on single dose exposure to eribulin (geometric least square means ratio: AUC(0,∞) = 1.10, 90% CI 0.91, 1.34 and Cmax = 0.97, 90% 0.81, 1.17). The most common treatment-related grade ≥3 adverse events were grade 3 neutropenia (4/14, 29%), leucopenia and fatigue (both 3/14, 21%).
These results indicate that eribulin mesylate may be safely co-administered with compounds that are CYP3A4 inducers.