The Transformation of Locally Advanced Pancreatic Cancer.

This trial is a prospective, observational, single-center, single-arm clinical research.Conversion treatment lasted for a total of 12 weeks, with one treatment cycle every two weeks.Carilizumab was administered every 2 weeks. The patients were orally taken apatinib after meals and evaluated by DLT(3+3) in the first 2 cycles.The drugs were stopped for 2 weeks after the start of radiotherapy.Before radiotherapy, patients received 2 cycles of karyolizumab combined with apartinib and chemotherapy. Radiotherapy was performed in the first week of cycle 3 with a total dose of 30Gy in five doses within one week.Imaging evaluation was conducted once every 6 weeks. If the patients met the indications for surgical resection, the treatment was stopped