- a histologic or cytologic diagnosis of advanced non-small cell lung cancer (NSCLC) [Stage IV from the American Joint Committee on Cancer Staging Criteria (AJCC) staging system, version 7.0, including both M1a and M1b], other than predominantly squamous cell histology, that is not amenable to curative therapy. Participants may not have received any prior systemic chemotherapy, immunotherapy, targeted therapy, or biological therapy, including adjuvant therapy, for any stage of NSCLC.