Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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! # Ola via Alexandros G.Sfakianakis on Inoreader

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Δευτέρα 4 Ιουνίου 2018

A promising response to osimertinib in a patient with erlotinib-resistant lung adenocarcinoma with an uncommon EGFR mutation

Most patients with non-small cell lung cancer with common epidermal growth factor receptor (EGFR) mutations respond dramatically to EGFR tyrosine kinase inhibitors (TKIs), but data are limited on the response of tumours with uncommon mutations. We present the case of a 68-year-old man with stage IV lung adenocarcinoma with an uncommon EGFR mutation in exon 21 (L861Q). The disease progressed 2 years after he started erlotinib (150 mg daily). Using a transbronchial lung biopsy, we detected additional mutations in exon 20 (T790M) and exon 21 (L858R). He was treated with osimertinib (80 mg daily) and achieved a partial remission. This case demonstrates the value of repeating a biopsy after EGFR-TKI therapy in patients with uncommon EGFR mutations.



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