已发表论文

免疫检查点抑制剂在结直肠癌治疗中的应用进展

 

Authors Li J, Fu T, Wen Z, Liang J, Qiu Y, Li K, Yang J, Tong Y, Cai H

Received 3 July 2025

Accepted for publication 30 September 2025

Published 15 October 2025 Volume 2025:18 Pages 1159—1168

DOI https://doi.org/10.2147/OTT.S551204

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr John Maher

Jianing Li,1 Tong Fu,2 Zhu Wen,3 Jiahao Liang,1 Yanzhi Qiu,1 Kaiqing Li,1 Jiamin Yang,1 Ying Tong,3 Hongbo Cai3 

1Graduate School, Heilongjiang University of Chinese Medicine, Harbin, People’s Republic of China; 2Department of Psychology, Brandeis University, Waltham, MA, USA; 3First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, People’s Republic of China

Correspondence: Ying Tong, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, People’s Republic of China, Email tongying@hljucm.edu.cn Hongbo Cai, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, People’s Republic of China, Email caihongbo@hljucm.edu.cn

Purpose: Colorectal cancer (CRC) is a highly prevalent malignant tumor worldwide, and the emergence of immune checkpoint inhibitors (ICIs) has changed CRC immunotherapy. This systematic review aims to provide a comprehensive overview of registered clinical trials on ICIs in CRC worldwide, with a focus on major molecular targets, combination therapy strategies, geographic distribution patterns, and future directions for precision immunotherapy.
Methods: All clinical trials related to ICIs in CRC were retrieved. Trials were screened according to inclusion and exclusion criteria, and core information such as trial phase, conducting country, mechanism targets, and combination therapy, was systematically organized for retrospective and trend analyses.
Results: A total of 1,479 eligible clinical trials were included. There has been a steady increase in the number of registered trials, with Phase II trials being the most numerous. The United States and China lead globally in the number of trials reported. Key research targets included PD-1, PD-L1, CTLA-4, and molecules related to the tumor microenvironment. Combination therapies involving ICIs, anti-angiogenic agents, and targeted drugs across multiple pathways emerged as a new research focus.
Conclusion: ICIs have driven the development of precision immunotherapy for CRC, and multi-target combination therapies hold promise for improving outcomes. However, clinical translation and efficacy improvements remain challenging. Future studies should focus on the mechanisms involved and accumulating clinical data to guide more effective immunotherapy strategies.

Keywords: colorectal cancer, immune checkpoint inhibitors, clinical trials, combination therapy, tumor microenvironment