Randomized phase II trial of chemoradiotherapy with S‐1 versus combination chemotherapy with gemcitabine and S‐1 as neoadjuvant treatment for resectable pancreatic cancer (JASPAC 04)

The aim of the present study was to investigate which treatment, neoadjuvant chemoradiotherapy (NAC-RT) with S-1 or combination neoadjuvant chemotherapy with gemcitabine and S-1 (NAC-GS), is more promising as neoadjuvant treatment (NAT) for resectable pancreatic cancer in terms of effectiveness and safety.