Fig. 2From: Erlotinib as single agent first line treatment in locally advanced or metastatic activating EGFR mutation-positive lung adenocarcinoma (CEETAC): an open-label, non-randomized, multicenter, phase IV clinical trialKaplan-Meier analysis of progression-free survival. (a) The intent-to-treat cohort had a 12.8 months median PFS. (b) Never smoker patients had increased progression-free survival. (c) Patients with extrathoracic metastasis at the time of screening had lower PFS than patients with pulmonary metastasis. (d) ECOG2 patients demonstrated progression earlier when compared to ECOG1 or ECOG0 performance statusBack to article page