The primary endpoint is feasibility and compliance of induction chemotherapy with gemcitabine and cisplatin followed by CRT for locally advanced unresectable pancreatic cancer. Previous studies showed that approximately 20% of patients with locally advanced disease developed the early distant metastasis.[6, 7] Thus, it will be expected that at least 80% of total patients will be eligible for induction chemotherapy after completion of induction chemotherapy. An experimental arm that result a compliance of 80% would merit further study. If the true compliance rate of the patients who will eligible for CRT is ≤ 60%, null hypothesis will be rejected with a power of 80% and a type I error of 5%. Thus, the required number of evaluable patients is 24. Considering the 10% follow-up loss and 20% distant metastasis rate after induction chemotherapy, a total of 34 eligible patients will be enrolled.