Bioequivalence Study of Irinotecan Liposome Injection in Chinese Advanced Pancreatic Cancer.

Drug: Irinotecan Liposome Injection 70mg/m2 (CSPC) combined with 5-FU/LV; Drug: Irinotecan Liposome Injection 70mg/m2 (Ipsen, ONIVYDETM) combined with 5-FU/LV;