S-Space College of Medicine/School of Medicine (의과대학/대학원) Cancer Research Institute (암연구소) Journal Papers (저널논문_암연구소)
AZD9291, an Irreversible EGFR TKI, Overcomes T790M-Mediated Resistance to EGFR Inhibitors in Lung Cancer
- Cross, Darren A. E.; Ashton, Susan E.; Ghiorghiu, Serban; Eberlein, Cath; Nebhan, Caroline A.; Spitzler, Paula J.; Orme, Jonathon P.; Finlay, M. Raymond V.; Ward, Richard A.; Mellor, Martine J.; Hughes, Gareth; Rahi, Amar; Jacobs, Vivien N.; Brewer, Monica Red; Ichihara, Eiki; Sun, Jing; Jin, Hailing; Ballard, Peter; Al-Kadhimi, Katherine; Rowlinson, Rachel; Klinowska, Teresa; Richmond, Graham H. P.; Cantarini, Mireille; Kim, Dong-Wan; Ranson, Malcolm R.; Pao, William
- Issue Date
- Cancer Discovery, Vol.4 No.9, pp.1046-1061
- First-generation EGFR tyrosine kinase inhibitors (EGFR TKI) provide significant clinical benefit in patients with advanced EGFR-mutant (EGFRm(+)) non-small cell lung cancer (NSCLC). Patients ultimately develop disease progression, often driven by acquisition of a second T790M EGFR TKI resistance mutation. AZD9291 is a novel oral, potent, and selective third-generation irreversible inhibitor of both EGFRm(+) sensitizing and T790M resistance mutants that spares wild-type EGFR. This mono-anilino-pyrimidine compound is structurally distinct from other third-generation EGFR TKIs and offers a pharmacologically differentiated profile from earlier generation EGFR TKIs. Preclinically, the drug potently inhibits signaling pathways and cellular growth in both EGFRm(+) and EGFRm(+)/T790M(+) mutant cell lines in vitro, with lower activity against wild-type EGFR lines, translating into profound and sustained tumor regression in EGFR-mutant tumor xenograft and transgenic models. The treatment of 2 patients with advanced EGFRm(+) T790M(+) NSCLC is described as proof of principle. SIGNIFICANCE: We report the development of a novel structurally distinct third-generation EGFR TKI, AZD9291, that irreversibly and selectively targets both sensitizing and resistant T790M(+) mutant EGFR while harboring less activity toward wild-type EGFR. AZD9291 is showing promising responses in a phase I trial even at the first-dose level, with first published clinical proof-of-principle validation being presented. (C) 2014 AACR.
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