Trilaciclib Combined With Anti-PD-1 Antibody and Chemotherapy in the Treatment of Locally Advanced TNBC

trilaciclib 240mg/m2 ivgtt d1 Q3w; anti-PD-1 antibody 200mg ivgtt d1 Q3w; Paclitaxel-albumin 250mg/m2 ivgtt d1 Q3w or 125mg/m2 ivgtt d1,d8 Q3w; carboplatin AUC=5 ivgtt d1 Q3w; Review every 2 cycles until the best efficacy or intolerable toxicity, usually 6-8 cycles;