• Anna La Salvia, Antonio Rossi, Domenico Galetta, Elisa Gobbini, Emmanuele De Luca, Silvia Novello, and Massimo Di Maio.
• Department of Oncology, University of Turin, "San Luigi Gonzaga" Hospital, Orbassano, Italy.
• Clin Lung Cancer. 2017 Jan 1; 18 (1): 23-33.e1.

AbstractRandomized clinical trials (RCTs) of concurrent epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) plus chemotherapy for unselected patients with advanced non-small-cell lung cancer (NSCLC) produced negative results. Intercalated administration could avoid the reduction of chemotherapy activity due to G1 cell-cycle arrest from EGFR-TKIs. A PubMed search was performed in December 2015 and updated in February 2016. The references from the selected studies were also checked to identify additional eligible trials. Furthermore, the proceedings of the main international meetings were searched from 2010 onward. We included RCTs comparing chemotherapy intercalated with an EGFR-TKI versus chemotherapy alone for patients with advanced NSCLC. Ten RCTs were eligible (6 with erlotinib, 4 with gefitinib): 39% of patients had a known EGFR mutational status, 43% of whom EGFR mutation positive. The intercalated combination was associated with a significant improvement in overall survival (OS; hazard ratio [HR], 0.82; 95% confidence interval [CI], 0.71-0.95; P = .01), progression-free survival (PFS; HR, 0.60; 95% CI, 0.53-0.68; P < .00001), and objective response rate (ORR; odds ratio [OR], 2.70; 95% CI, 2.08-3.49; P < .00001). Considering only first-line trials, similar differences were found in OS (HR, 0.85; 95% CI, 0.72-1.00; P = .05), PFS (HR, 0.63; 95% CI, 0.55-0.73; P < .00001), and ORR (OR, 2.21; 95% CI, 1.65-2.95; P < .00001). In EGFR mutation-positive patients, the addition of an intercalated EGFR-TKI produced a significant benefit in PFS (129 patients; HR, 0.24; 95% CI, 0.16-0.37; P < .00001) and ORR (168 patients; OR, 11.59; 95% CI, 5.54-24.25; P < .00001). In patients with advanced NSCLC, chemotherapy plus intercalated EGFR-TKIs was superior to chemotherapy alone, although a definitive interpretation was jeopardized by the variable proportion of patients with EGFR mutation-positive tumors included.Copyright © 2016 Elsevier Inc. All rights reserved.

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