Surufatinib Plus Gemcitabine and Nab-paclitaxel vs. Gemcitabine Plus Nab-paclitaxel in Neoadjuvant Therapy for High - Risk Resectable or Borderline Resectable Pancreatic Cancer
To explore the efficacy and safety of surufatinib in combination with AG regimen verus AG regimen as peri-operative treatment in high - risk resectable or borderline resectable pancreatic cancer