Clinical Research Directory

CDH17 CAR-T Therapy in Advanced Malignant Solid Tumors

The investigational product used in this study, UCLH801 cells, is a CAR-T cell therapy specifically targeting CDH17. The proposed indication includes CDH17-positive advanced solid tumors, such as but not limited to colorectal cancer, gastric cancer, pancreatic cancer, biliary tract tumors, neuroendocrine tumors, ovarian cancer, and lung cancer. The primary objective of this study is to evaluate the safety and tolerability of UCLH801 cells in patients with CDH17-positive advanced malignant solid tumors. The secondary objectives include assessing the preliminary efficacy of UCLH801 cells, their pharmacokinetics and pharmacodynamics in the body, and their immunogenicity. This study aims to observe how the infusion of UCLH801 cells affects patients 's body, including any discomfort or changes in laboratory test results. Additionally, it will evaluate whether UCLH801 cells have any effect on tumor. Furthermore, the study will investigate how UCLH801 cells are metabolized; the mechanisms through which they exert their effects, and how to develops any immune response or rejection against UCLH801 cells.

Safety and Efficacy of PD-1 ± mFOLFOX6 Neoadjuvant Therapy in Local Advanced sMPCC

At present, radical resection ± preoperative neoadjuvant chemotherapy for colorectal cancer is still the standard comprehensive treatment. In recent years, immunotherapy of PD-1 monoclonal antibody has a significant effect in the second-line/first-line treatment of dMMR/MSI-H advanced colorectal cancer and the neoadjuvant treatment of early colorectal cancer. Synchronous multiple primary colorectal cancer (sMPCC) is a relatively rare type of colorectal cancer (CRC) that refers to the simultaneous occurrence of 2 or more independent primary malignancies in the colon or rectum. The recent large-scale, single-center retrospective study of the investigator showed that compared with single primary colorectal cancer (SPCRC)patients, the incidence of dMMR/MSI-H was significantly higher in sMPCC patients. Besides, a certain proportion of sMPCC patients could both have MSI and MSS tumors at the same time. There is no standard regimen for this patients so far. This study intends to treat the MSI-H/MSS (dMMR/pMMR) mixed sMPCC patients with combination of mFOLFOX6+PD-1 monoclonal antibody neoadjuvant therapy, and treat the all-MSI-H (dMMR) sMPCC patients with single-drug PD-1 monoclonal antibody neoadjuvant therapy. Given the current gaps in the guideline, the investigator intends to take the lead in carrying out this open, multi-center, prospective clinical phase II study. This study might provide a clinical evidence for individual treatment of sMPCC patients, in preserving the functions and organs to the greatest extent.