Cited by 121Lung Cancer Treatments and MutationsHER2/EGFR in Cancer ResearchCancer Genomics and Diagnostics

EGF816 Exerts Anticancer Effects in Non–Small Cell Lung Cancer by Irreversibly and Selectively Targeting Primary and Acquired Activating Mutations in the EGF Receptor

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Abstract

Non–small cell lung cancer patients carrying oncogenic EGFR mutations initially respond to EGFR-targeted therapy, but later elicit minimal response due to dose-limiting toxicities and acquired resistance. EGF816 is a novel, irreversible mutant-selective EGFR inhibitor that specifically targets EGFR-activating mutations arising de novo and upon resistance acquisition, while sparing wild-type (WT) EGFR. EGF816 potently inhibited the most common EGFR mutations L858R, Ex19del, and T790M in vitro, which translated into strong tumor regressions in vivo in several patient-derived xenograft models. Notably, EGF816 also demonstrated antitumor activity in an exon 20 insertion mutant model. At levels above efficacious doses, EGF816 treatment led to minimal inhibition of WT EGFR and was well tolerated. In single-dose studies, EGF816 provided sustained inhibition of EGFR phosphorylation, consistent with its ability for irreversible binding. Furthermore, combined treatment with EGF816 and INC280, a cMET inhibitor, resulted in durable antitumor efficacy in a xenograft model that initially developed resistance to first-generation EGFR inhibitors via cMET activation. Thus, we report the first preclinical characterization of EGF816 and provide the groundwork for its current evaluation in phase I/II clinical trials in patients harboring EGFR mutations, including T790M. Cancer Res; 76(6); 1591–602. ©2016 AACR.

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Authors
Jia, Y., Juarez, J., Li, J., Manuia, M., Niederst, M. J., Tompkins, C., Timple, N., Vaillancourt, M.-T., Pferdekamper, A. C., Lockerman, E. L., Li, C., Anderson, J., Costa, C., Liao, D., Murphy, E., DiDonato, M., Bursulaya, B., Lelais, G., Barretina, J., McNeill, M., Epple, R., Marsilje, T. H., Pathan, N., Engelman, J. A., Michellys, P.-Y., McNamara, P., Harris, J., Bender, S., & Kasibhatla, S.
Affiliations
  • Genomics Institute of the Novartis Research Foundation (US)
  • Harvard University (US)
  • 3Novartis Institute for Biomedical Research, Cambridge, Massachusetts.
Corresponding author
  • Jia, Yong
  • Kasibhatla, Shailaja
Venue
Cancer Research
Published
2016-03-14
Volume
76
Issue
6
Pages
1591-1602
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2292957477
Cited by
121
References
43
Citations by year
2026: 2 · 2025: 5 · 2024: 10 · 2023: 7 · 2022: 6 · 2021: 11 · 2020: 7 · 2019: 18 · 2018: 15 · 2017: 23 · 2016: 16 · 2014: 1
FWCI
22.11
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
Keywords
EGFR inhibitors, non-small cell lung cancer, EGFR mutation, T790M, exon 20 insertion, acquired drug resistance, irreversible binding, L858R, ex19del, c-Met, combination therapy, patient-derived xenografts, EGFR phosphorylation
MeSH terms
Animals, Antineoplastic Agents, Carcinoma, Non-Small-Cell Lung, Female, Lung Neoplasms, Mice, Nude, Mutation, Phosphorylation, Drug Resistance, Neoplasm, Xenograft Model Antitumor Assays, Cell Line, Tumor, Mice, Rats, ErbB Receptors

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