Primary Objective: - To compare the OS between participants treated with ASP3082 plus mFOLFIRINOX or NALIRIFOX vs placebo plus mFOLFIRINOX or NALIRIFOX Secondary Objectives: - To compare the PFS between participants treated with ASP3082 plus mFOLFIRINOX or NALIRIFOX vs placebo plus mFOLFIRINOX or NALIRIFOX - To compare time to improvement of pancreatic pain (TIPP) - To compare time to worsening of GHS/QoL (TWGQ) - To compare the ORR between participants treated with ASP3082 plus mFOLFIRINOX or NALIRIFOX vs placebo plus mFOLFIRINOX or NALIRIFOX - To compare the safety and tolerability between participants treated with ASP3082 plus mFOLFIRINOX or NALIRIFOX vs placebo plus mFOLFIRINOX or NALIRIFOX - To evaluate the PK of ASP3082 (and metabolites, if applicable) - To evaluate impact on QoL, functioning and symptoms in EORTC QLQ-PAN26, EORTC QLQ-C30, EQ-5D-5L, PGIC and PGIS
3082-CL-0301: A Phase 3, Double-blind, Placebo-controlled, Randomized Study to Assess the Efficacy and Safety of ASP3082 in Combination with mFOLFIRINOX or NALIRIFOX as First-line Treatment in Participants with KRAS G12D-mutated Metastatic Pancreatic Adenocarcinoma