A Clinical Trial Targeting CEA Chimeric Antigen Receptor T (CAR-T) for CEA Positive Advanced Malignant Solid Tumors

According to the sequence principle of low and high dose of C-13-60 cell reinfusion, the dose escalation experiment was carried out successively. Three subjects in each dose group were enrolled first. If DLT did not appear, the decision of whether to enter the next dose group was made according to Safety review committee (SRC) resolution. If there was one case of DLT, then 3 subjects were enrolled one by one, and DLT observation was completed for 28 days after each subject's infusion. If no DLT was found, the next infusion was continued. If DLT was found, the subsequent enrollment of the dose group was terminated, and the experiment was terminated or the dose was reduced according to the dose increasing principle. If \> 1 case of DLT occurs, the trial is terminated or the dose is reduced.According to the evaluation of the researchers, the subjects who met the conditions of antisepsis received antisepsis chemotherapy 1-5 to -3 days before the transfusion of C-13-60 cells；