RecruitingBiological interventionXH001 Combination With Immunocheckpoint Inhibitor and Chemotherapy for Patients With Resected Pancreatic CancerThis is a single-center, open label, single-arm, investigator-initiated study to evaluate the efficacy and safety of XH001 (neoantigen cancer vaccine) sequential combination with immunocheckpoint inhibitor and chemotherapy in pancreatic cancer patients following surgical resection.