SEOUL, Korea--(BUSINESS WIRE)--Pfizer announced today the initiation of a large, global Phase III clinical trial to evaluate the efficacy and safety of sunitinib malate, in combination with erlotinib, in previously treated patients with advanced non-small cell lung cancer (NSCLC). In addition, preliminary results from a Phase II study, presented this week at the International Association for the Study of Lung Cancer (IASLC) World Conference in Seoul, Korea, provided information on the safety and tolerability of sunitinib in combination with erlotinib in patients with advanced NSCLC.