Dataset from A Randomised Phase 2 Trial of Pemetrexed and Gefitinib Versus Gefitinib as First Line Treatment for Patients With Stage IV Non-Squamous Non-Small Cell Lung Cancer With Activating Epidermal Growth Factor Receptor Mutations

The purpose of this study is to compare the combination of pemetrexed and gefitinib versus gefitinib alone, in terms of progression-free survival. This study is in participants who have stage IV non squamous NSCLC with activating epidermal growth factor mutations and who have not had any previous chemotherapy for stage IV disease.