Concurrent chemoradiotherapy using cisplatin and S-1, followed by surgery for stage II/IIIA non-small cell lung cancer

Objectives Because chemoradiotherapy using cisplatin and S-1, an oral fluoropyrimidine, is effective for unresectable non-small cell lung cancer (NSCLC), an induction setting was used in a multicenter phase II study (Clinical trial number: UMIN000008205). The correlations of relapse and clinicopathological factors were analyzed.