Abstract
8041 Background: The primary analysis of this open-label, randomized, multicenter study found no significant difference in progression-free survival (PFS) between PC/G and G in pts with nSqNSCLC and unknown epidermal growth factor receptor (EGFR) mutation status, although the unadjusted hazard ratio (HR, PC/G vs G) favored PC/G (0.85, 95% CI: 0.63–1.13). Final overall survival (OS) data are reported here. Methods: Eligible pts were chemonaive, East Asian light ex-smokers/never-smokers aged ≥18 years with advanced nSqNSCLC, ECOG PS 0/1 and unknown EGFR mutation status. Pts (N = 236) were randomized (1:1) to PC/G (pemetrexed 500 mg/m2 + cisplatin 75 mg/m2for six 21-day cycles then gefitinib 250 mg/day) or G (gefitinib 250 mg/day). EGFR mutation status was determined for 76 pts; 52 (68.4%) had mutations. OS was analyzed (intent-to-treat population) by unadjusted Cox regression analysis. Results: Baseline characteristics were similar between groups (both N = 118). Median OS was similar in the PC/G and G group...
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