Findings from a phase III clinical trial point to a potential new treatment for patients newly diagnosed with advanced, epidermal growth factor receptor (EGFR)-positive non-small cell lung cancer (NSCLC). Compared to the EGFR inhibitor gefitinib (Iressa), one of the standard targeted medicines for this disease, second-generation EGFR inhibitor dacomitinib delayed cancer growth by a median of 5.5 months more.