Perioperative Treatment of High-risk Resectable CCA with HAIC Plus A+T: Neobrave CCA

The perioperative treatment plan includes neoadjuvant therapy and adjuvant therapy. Neoadjuvant therapy consists of three cycles of HAIC combined with atezolizumab and bevacizumab (atezo/bev), while adjuvant therapy includes two cycles of HAIC combined with atezolizumab and bevacizumab (atezo/bev), along with additional capecitabine or tegafur as auxiliary maintenance treatment for three cycles. The total treatment duration for the perioperative period is six months. HAIC regimen: gemcitabine (1,000 mg/m2, 2h, d1) + oxaliplatin (35 mg/m2, 2h, d1-2) + 5-FU (0.75g/m2, 22h, d1-2); atezolizumab (PD-L1 inhibitor): 1200 mg, intravenous infusion, administered within 24 hours before HAIC treatment; bevacizumab: 7.5 mg/kg, intravenously infused before HAIC treatment (bevacizumab use is paused during the third neoadjuvant treatment). Each cycle lasts for three weeks.