Tumor Biology

, Volume 36, Issue 8, pp 5801–5805 | Cite as

Statins augment efficacy of EGFR-TKIs in patients with advanced-stage non-small cell lung cancer harbouring KRAS mutation

  • Ondrej Fiala
  • Milos Pesek
  • Jindrich Finek
  • Marek Minarik
  • Lucie Benesova
  • Zbynek Bortlicek
  • Ondrej Topolcan
Research Article

Abstract

Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) represent novel effective agents approved for the treatment of patients with advanced-stage NSCLC. KRAS mutations have been reported as a negative prognostic and predictive factor in patients with NSCLC treated with EGFR-TKIs. Several studies have recently shown that statins can block tumour cell growth, invasion and metastatic potential. We analysed clinical data of 67 patients with locally advanced (IIIB) or metastatic stage (IV) NSCLC harbouring Kirsten rat sarcoma viral oncogene (KRAS) mutation treated with erlotinib or gefitinib. Twelve patients were treated with combination of EGFR-TKI and statin and 55 patients were treated with EGFR-TKI alone. Comparison of patients’ survival (progression-free survival (PFS) and overall survival (OS)) according to the treatment used was performed using the Gehan-Wilcoxon test. The median of PFS and OS for patients treated with EGFR-TKI alone was 1.0 and 5.4 months compared to 2.0 and 14.0 months for patients treated with combination of EGFR-TKI and statin (p = 0.025, p = 0.130). In conclusion, the study results suggest significant improvement of PFS for patients treated with combination of statin and EGFR-TKI, and the difference in OS was not significant.

Keywords

Statin KRAS Lung cancer NSCLC EGFR-TKI Erlotinib Gefitinib 

Notes

Acknowledgments

The authors would like to thank all patients voluntarily taking part in this study. This work was supported by the grant no. 9087 of the Czech Ministry of Health and by the project CZ.1.05/2.1.00/03.0076 from European Regional Development Fund.

Conflicts of interest

None

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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2015

Authors and Affiliations

  • Ondrej Fiala
    • 1
    • 2
  • Milos Pesek
    • 3
  • Jindrich Finek
    • 1
  • Marek Minarik
    • 4
    • 5
  • Lucie Benesova
    • 4
  • Zbynek Bortlicek
    • 6
  • Ondrej Topolcan
    • 7
  1. 1.Department of Oncology and Radiotherapy, Medical School and Teaching Hospital in PilsenCharles University in PraguePilsenCzech Republic
  2. 2.Biomedical Center, Faculty of Medicine in PilsenCharles University in PraguePragueCzech Republic
  3. 3.Department of Pneumology, Medical School and Teaching Hospital in PilsenCharles University in PraguePragueCzech Republic
  4. 4.Center for Applied Genomics of Solid TumoursGenomac Research InstitutePragueCzech Republic
  5. 5.Department of Analytical Chemistry, Faculty of SciencesCharles University in PraguePragueCzech Republic
  6. 6.Institute of Biostatistics and Analysis, Faculty of MedicineMasaryk UniversityBrnoCzech Republic
  7. 7.Department of Nuclear Medicine, Medical School and Teaching Hospital in PilsenCharles University in PraguePragueCzech Republic

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