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Association details:
| Biomarker: | EGFR M766Q |
|---|---|
| Cancer: | Lung Adenocarcinoma |
| Drug: | Tagrisso (osimertinib) (EGFR inhibitor) |
| Direction: | Resistant |
Evidence:
Source:
Title:
A Novel Acquired Exon 20 EGFR M766Q Mutation in Lung Adenocarcinoma Mediates Osimertinib Resistance but is Sensitive to Neratinib and Poziotinib
Excerpt:
Modeling suggested that EGFR M766Q could disrupt osimertinib binding. L858R/M766Q double-mutant cells were 12-fold more resistant to osimertinib, and more than 250-fold more resistant to erlotinib and afatinib, as compared to L858R-mutant cells. In contrast, double-mutant cells remained sensitive to neratinib and poziotinib at clinically relevant doses (concentration that inhibits 50%, 4.3 and 1.3 nM, respectively).
DOI:
10.1016/j.jtho.2019.06.015
