Lung cancer remains the leading cause of cancer-related deaths worldwide with an estimated incidence of 1.6 million cases resulting in 1.4 million deaths in annually. Non-small-cell lung cancer (NSCLC) represents 80-85% of cases, and adenocarcinoma is the most common histology.2 The majority of NSCLC patients present with advanced or metastatic disease that is not amenable to surgical resection. Platinum-based combination chemotherapy has reached a therapeutic plateau with a median overall survival (OS) of 7.4 to 9.9 months.