The goal of this clinical trial is to learn if surufatinib (VEGFR-TKI) plus toripalimab (PD-1 inhibitor) and mFOLFIRINOX (chemotherapy) works as neoadjuvant therapy for patients with high-risk or borderline resectable pancreatic cancer. It will also learn about the safety of the combination regimen. The main questions it aims to answer are:
Does the treatment regimen of surufatinib combined with immunotherapy and chemotherapy could provide further survival benefits for patients with high-risk resectable or borderline resectable pancreatic cancer as neoadjuvant therapy?
Is the safety of this combination therapy tolerable?
Participants will:
Take surufatinib (200mg, qd, po, q2w), Toripalimab (3mg/kg, iv, d1, q2w), Oxaliplatin (68 mg/m², iv, d1, q2w), Irinotecan (135 mg/m², iv, d1, q2w), Calcium folinate (400 mg/m², iv, d1, q2w), 5-FU (2400 mg/m², iv). Treatment for up to 8 cycles.
Visit the clinic once every 8 weeks (± 7 days) for checkups and tests. Keep a diary of their symptoms and record daily medication doses.