Safety and Efficacy of NRT6008 in Patients With Unresectable Locally Advanced Pancreatic Cancer (LAPC)

"-Systematic chemotherapy The chemotherapy regimen is selected by the investigators at the consideration of participants' conditions, with either GN or (m)FOLFIRINOX.~GN: gemcitabine 1000 mg/m\^2 and nab-paclitaxel 125 mg/m\^2, every 21 days (3 weeks/cycle).~FOLFIRINOX: oxaliplatin 85 mg/m\^2, irinotecan 180 mg/m\^2, leucovorin 400 mg/m\^2 and fluorouracil 400 mg/m\^2 given as a bolus followed by 2400 mg/m\^2 given as a 46-hour continuous infusion, every 2 weeks (4 weeks/cycle).~mFOLFIRINOX: oxaliplatin 85 mg/m\^2, irinotecan 180 mg/m\^2, leucovorin 400 mg/m\^2, and fluorouracil 2400 mg/m\^2 given as a 46-hour continuous infusion, every 2 weeks (4 weeks/cycle).~-NRT6008 injection administration: NRT6008 injection is implanted into pancreatic tumor via endoscopic ultrasound (EUS)-guided fine-needle injection, at the instruction of the investigator. The dose of NRT6008 injection is determined by tumor volume and selected tumor average absorbed dose."