Efficacy and Safety of Serplulimab in Combination With Bevacizumab and FOLFIRINOX or NALIRIFOX as Second-Line Therapy in Patients With Metastatic Pancreatic Ductal Adenocarcinoma

This is an investigator-initiated, open-label, single-arm, phase II trial evaluating the efficacy and safety of serplulimab (an anti-PD-1 monoclonal antibody) plus bevacizumab, combined with either FOLFIRINOX or NALIRIFOX chemotherapy, as second-line treatment for metastatic pancreatic ductal adenocarcinoma. The study will enrol up to 34 patients.