A randomized multi-center prospective study to compare the 12-month effectiveness (survival) and safety of erlotinib and pemetrexed as maintenance treatment in two groups of patients with locally advanced or metastatic Non-Squamous Non-Small Cell Lung Cancer (NSCLC) other than predominantly squamous cell histology, whose disease has not progressed immediately following platinum-based chemotherapy for 4 cycles administered per routine daily practice in each study center
The purpose of this multicenter randomized study is to compare the effectiveness and safety of erlotinib and pemetrexed in the maintenance treatment of patients with advanced non-squamous non-small cell lung cancer (NSCLC)