RT Journal Article SR Electronic A1 Boltz, Kathy T1 ARCHER 1009 Subset Analysis and LUX-8 Lung: Erlotinib Compared With Dacomitinib or Afatinib JF MD Conference Express YR 2015 FD SAGE Publications VO 15 IS 8 SP 5 OP 6 DO 10.1177/1559897715588077 UL http://mdc.sagepub.com/content/15/8/5.abstract AB The subgroup of patients with the EGFR-activating mutation in exon 19 or 21 appeared to have a favorable trend for dacomitinib vs erlotinib in progression-free survival. Afatinib was favored over erlotinib for second-line treatment of advanced squamous cell carcinoma in terms of progression-free survival, overall response rate, and disease control rate.