Shenzhen Fifth People's Hospital

An Evaluation Trial About Anti-claudin18.2 the Specificity of Chimeric Antigen Receptor T Cells in the Advanced Gastric / Esophagogastric Junction Adenocarcinoma and Pancreatic Cancer Subjects. To evaluate the tolerability and safety of different doses of HEC-016 CAR-T cell injections in patients with advanced gastric / esophagogastric junction adenocarcinoma and pancreatic cancer, to observe dose limiting toxicity (DLT), to determine the maximum tolerated dose (MTD) and to recommend the regimen for subsequent clinical trials.