This study is a randomized phase II study. Patients are randomized to 1 of 2 treatment arms: patients receive adjuvant chemotherapy with gemcitabine-oxaliplatin or gemcitabine-cisplatin. Chemotherapy should be started within 8 weeks after complete surgical resection. Patients are followed every 3 months for 2 years, every 6 months for 3 years.
Gemcitabine-Oxaliplatin (GemOx) chemotherapy:
Gemcitabine (1,250 mg/m2)+Oxaliplatin (85 mg/m2) is given on day 1 and 15 q 4weeks. maximum 4 cycles.
Gemcitabine-Cisplatin (GemCis) chemotherapy:
Gemcitabine (1,250 mg/m2) + Cisplatin (40 mg/m2) is given on day 1 and 15 q 4weeks. maximum 4 cycles.
