An Exploratory Clinical Study Evaluating the Safety and Efficacy of Anti-CEA-CAR-T Cells Injection in Patients With CEA+ Locally Advanced and/or Metastatic Solid Tumors

Anti-CEA-CAR-T cell is administered as a single intravenous infusion. Follow-up infusions are based on the investigator's decision.The dose group to be infusion was 0.3×10\^7 CAR-T cells/kg, 1×10\^7 CAR-T cells/kg, and 3×10\^7 CAR-T cells/kg based on the 3+3 dose escalation principle. The infusion dose refers to the number of CAR-positive cells.