Increased Epidermal Growth Factor Receptor Gene Copy Number Detected by Fluorescence In Situ Hybridization Associates With Increased Sensitivity to Gefitinib in Patients With Bronchioloalveolar Carcinoma Subtypes: A Southwest Oncology Group Study

Abstract excerpt

PURPOSE: Bronchioloalveolar carcinoma (BAC) and adenocarcinomas with BAC features seem to be increasing in incidence, particularly in younger, never-smoking women. Epidermal growth factor receptor (EGFR) inhibitors demonstrated response rates of 20% to 30% in patients with advanced BAC subtypes, but selection methods for patient therapy are not established. PATIENTS AND METHODS: EGFR and HER2 gene copy numbers...

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