TY - JOUR T1 - Sequential Treatment of Advanced-stage Lung Adenocarcinoma Harboring Wild-type <em>EGFR</em> Gene: Second-line Pemetrexed Followed by Third-line Erlotinib <em>versus</em> the Reverse Sequence JF - Anticancer Research JO - Anticancer Res SP - 3397 LP - 3402 VL - 33 IS - 8 AU - ONDREJ FIALA AU - MILOS PESEK AU - JINDRICH FINEK AU - LUCIE BENESOVA AU - ZBYNEK BORTLICEK AU - MAREK MINARIK Y1 - 2013/08/01 UR - http://ar.iiarjournals.org/content/33/8/3397.abstract N2 - Background: Pemetrexed and erlotinib represent novel agents for the treatment of non-small cell lung cancer (NSCLC). The role of sequential treatment in NSCLC has not been elucidated yet. We compared the efficacy of second-line pemetrexed followed by third-line erlotinib (P-E) to treatment with the reverse sequence (E-P). Patients and Methods: We analyzed data of 57 patients with advanced-stage (IIIB/IV) lung adenocarcinoma harboring wild-type epidermal growth factor receptor (EGFR) gene; 31 patients were treated with P-E and 26 patients with the E-P sequence. Results: The median progression-free survival (PFS) for patients treated with P-E was 3.6 months vs. 7.8 months for patients treated with E-P (p=0.029). The median overall survival (OS) for patients treated with P-E was 7.9 months vs. 26.3 months for patients treated with E-P (p=0.006). Conclusion: The results proved a significant improvement of both PFS and OS for patients treated with the E-P sequence as compared to the P-E sequence. ER -