Article
Acquired Resistance to Afatinib Mediated by EGFR T790M in Lung Adenocarcinoma Patients Harboring EGFR-KDD: A Case Report and Literature Review.
Current oncology (Toronto, Ont.) - 14 Apr 2026
Liu Qian, Lv Lu, Pang Guanchao, Wang Pingli
Abstract excerpt
Epidermal growth factor receptor (EGFR)-kinase domain duplication (KDD) represents an atypical mutation distinct from classical EGFR mutations in lung adenocarcinoma (LUAD). Although first- and second-generation EGFR-tyrosine kinase inhibitors (TKIs) have demonstrated clinical activity in EGFR-KDD, the mechanisms of acquired resistance in this setting remain poorly characterized. Herein, we present a LUAD patient...
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