Cited by 149Lung Cancer Treatments and MutationsHER2/EGFR in Cancer ResearchCancer Genomics and Diagnostics

High MET amplification level as a resistance mechanism to osimertinib (AZD9291) in a patient that symptomatically responded to crizotinib treatment post-osimertinib progression

Ou, Sai-Hong Ignatius, Agarwal, Nikita, Ali, Siraj M.·2016·Lung Cancer

Abstract

Third-generation EGFR TKI has been approved in the US and EU for the treatment of EGFR mutant T790M+ NSCLC patients that are resistant to first- or second generation EGFR TKIs. Here we report a patient who developed resistance to osimertinib after a confirmed partial response for 9 months. Pre-osimertinib and post-osimertinib tumor biopsy revealed the emergence of high level of MET amplification (30 copies) post osimertinib treatment. Patient was treated with single agent crizotinib, a known MET inhibitor, with transient symptomatic benefit. MET amplification is one potential resistance mechanism to osimertinib and combination of osimertinib and a MET inhibitor should be investigated post-osimertinib progression in EGFR mutant T790M+ NSCLC patients whose harbored acquired MET amplification.

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Crossref · 10.1016/j.lungcan.2016.05.015

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Authors
Ou, S.-H. I., Agarwal, N., & Ali, S. M.
Affiliations
  • University of California, Irvine (US)
  • Foundation Medicine (United States) (US)
Corresponding author
Ou, Sai-Hong Ignatius
Venue
Lung Cancer
Publisher
Elsevier BV
Published
2016-08
Volume
98
Pages
59-61
ISSN
0169-5002 (ISSN-L)
OpenAlex
W2462969936
Cited by
149
References
14
Citations by year
2026: 1 · 2025: 4 · 2024: 6 · 2023: 8 · 2022: 8 · 2021: 26 · 2020: 17 · 2019: 15 · 2018: 35 · 2017: 22 · 2016: 7
FWCI
23.54
Type
journal article
Language
en
Open access
closed
Locations
  • Lung Cancer (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
MET amplification, osimertinib resistance, crizotinib, T790M mutation, non-small cell lung cancer, third-generation EGFR tyrosine kinase inhibitors, acquired resistance mechanisms
MeSH terms
Crizotinib, Acrylamides, Aged, Aniline Compounds, Female, Gene Amplification, Humans, Indoles, Lung Neoplasms, Pyrazoles, Pyridines, Pyrimidines, Tomography, X-Ray Computed, Fatal Outcome, Disease Progression, Drug Resistance, Neoplasm, Retreatment, Proto-Oncogene Proteins c-met, Protein Kinase Inhibitors, Drug Substitution

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