This is a single center, single arm, phase Ib trial to evaluate the feasibility, safety, immunogenicity, and efficacy of subcutaneous dendritic cell (DC) vaccine loaded with personalized peptides [PEP-DC vaccine] in combination with standard of care adjuvant chemotherapy (subgroup 1: mFOLFIRINOX or subgroup 2: gemcitabine and capecitabine), followed by the antibody nivolumab in patients with non-metastatic surgically resected pancreatic adenocarcinoma.~All patients will have previously undergone collection of resected advanced pancreatic tumor tissue under a different research protocol with a separate informed consent. After registration, all patients will receive standard of care chemotherapy:~Subgroup 1: intravenous mFOLFIRINOX for twelve 2-week cycles. Subgroup 2: intravenous gemcitabine, and oral capecitabine for eight 21-day cycles. Additionally, all eligible patients will undergo apheresis during the cycle 5 of mFOLFIRINOX (subgroup 1) or the last week of cycle 3 of gemcitabine/ capecitabine (subgroup 2) to collect peripheral blood mononuclear cells (PBMCs) for dendritic cell vaccine production. All patients will receive at least six PEP-DC vaccinations starting concomitant with the 8th cycle (subgroup 1) or the 5th cycle (subgroup 2) of chemotherapy.~Subgroup 1: Vaccine will be delivered subcutaneously every 4 weeks, on day 3(+1) of every second 14-day cycle, and thereafter every four weeks starting from the first nivolumab administration.~Subgroup 2: Vaccine will be administered subcutaneously every 3 weeks, on day 9 (the day after last gemcitabine infusion) of each 21-day cycle, and thereafter every four weeks starting from the second nivolumab administration.~Nivolumab intravenous administration will start after the last cycle of chemotherapy (for Subgroup1: 2 weeks after C12D1 and for Subgroup2: 3 weeks after C8D1) and will be given as a flat dose every 2 weeks during the vaccination period until the last vaccine dose or at least 8 weeks after the end of the last chemotherapy cycle if vaccination stops earlier.~Regular physical examination, radiological evaluation and blood testing for safety parameters will be performed according to the schedule during treatment.
Phase Ib clinical trial using Autologous Dendritic Cell Vaccine Loaded with Personalized Peptides (PEP) in order to stimulate/induce both innate and adaptive immunity by activating T-cells and Natural Killer (NK) cells, combined with standard of care (SOC) adjuvant chemotherapy, followed by nivolumab, an antibody against Programmed Cell Death 1 (PD-1), to maintain and boost the vaccine's effect in patients with non-metastatic resectable pancreatic adenocarcinoma