Cited by 243HER2/EGFR in Cancer ResearchLung Cancer Treatments and MutationsCancer Genomics and Diagnostics

Pan-Cancer Landscape and Analysis of ERBB2 Mutations Identifies Poziotinib as a Clinically Active Inhibitor and Enhancer of T-DM1 Activity

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Robichaux, Jacqulyne P., Elamin, Yasir Y., Vijayan, R.S.K., Nilsson, Monique B., Hu, Lemei, He, Junqin, Zhang, Fahao, Pisegna, Marlese +23 more·2019·Cancer Cell

Abstract

We characterized the landscape and drug sensitivity of ERBB2 (HER2) mutations in cancers. In 11 datasets (n = 211,726), ERBB2 mutational hotspots varied across 25 tumor types. Common HER2 mutants yielded differential sensitivities to eleven EGFR/HER2 tyrosine kinase inhibitors (TKIs) in vitro, and molecular dynamics simulations revealed that mutants with a reduced drug-binding pocket volume were associated with decreased affinity for larger TKIs. Overall, poziotinib was the most potent HER2 mutant-selective TKI tested. Phase II clinical testing in ERBB2 exon 20-mutant non-small cell lung cancer resulted in a confirmed objective response rate of 42% in the first 12 evaluable patients. In pre-clinical models, poziotinib upregulated HER2 cell-surface expression and potentiated the activity of T-DM1, resulting in complete tumor regression with combination treatment.

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Crossref · 10.1016/j.ccell.2019.09.001

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  • Most second-generation TKIs are dosed at the maximum tolerated doses, resulting in plasma concentrations 10-100 fold greater than concentrations necessary for inhibiting PACC mutations.

    “Clinically, second-generation TKIs have been associated with inhibition of wild-type EGFR and related adverse events15,35,36; however, most second-generation TKIs are dosed at the maximum tolerated doses, resulting in plasma concentrations 10–100 fold greater than concentrations necessary for inhibiting PACC mutations.”

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Authors
Robichaux, J. P., Elamin, Y. Y., Vijayan, R. S. K., Nilsson, M. B., Hu, L., He, J., Zhang, F., Pisegna, M., Poteete, A., Sun, H., Li, S., Chen, T., Han, H., Negrao, M. V., Ahnert, J. R., Diao, L., Wang, J., Le, X., Meric-Bernstam, F., Routbort, M., Roeck, B., Yang, Z., Raymond, V. M., Lanman, R. B., Frampton, G. M., Miller, V. A., Schrock, A. B., Albacker, L. A., Wong, K.-K., Cross, J. B., & Heymach, J. V.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • NYU Langone Health (US)
  • Spectrum Pharmaceuticals (United States) (US)
  • Guardant (United States) (US)
  • Foundation Medicine (United States) (US)
Corresponding author
Heymach, John V.
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2019-10
Volume
36
Issue
4
Pages
444-457.e7
ISSN
1535-6108 (ISSN-L)
OpenAlex
W2977889895
Cited by
242
References
66
Citations by year
2026: 21 · 2025: 34 · 2024: 33 · 2023: 40 · 2022: 43 · 2021: 43 · 2020: 28
FWCI
12.00
Type
journal article
Language
en
Update notices
erratum (2020-03-16)
Open access
Locations
  • Cancer Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute
Topics
  • Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
Keywords
ERBB2 mutations, HER2, poziotinib, tyrosine kinase inhibitors, trastuzumab emtansine, non-small cell lung cancer, drug sensitivity, molecular dynamics simulation, drug-binding pocket, combination therapy
MeSH terms
Antineoplastic Agents, Immunological, Progression-Free Survival, Ado-Trastuzumab Emtansine, Adult, Animals, Antineoplastic Combined Chemotherapy Protocols, Disease Models, Animal, DNA Mutational Analysis, Drug Synergism, Female, Humans, Male, Mice, Transgenic, Mutation, Neoplasms, Quinazolines, Erb-b2 Receptor Tyrosine Kinases, Drug Resistance, Neoplasm, Protein Kinase Inhibitors, Mice, Datasets as Topic

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