Journal of Capital Medical University ›› 2023, Vol. 44 ›› Issue (2): 343-350.doi: 10.3969/j.issn.1006-7795.2023.02.024

Previous Articles     Next Articles

Clinical analysis of immune-related adverse events in gastrointestinal cancer

Sun Jing#, Shi Youwu#, Du Feng, Yang Ying, Sun Zhiwei, Yu Jing, Xiao Yanjie, Zhang Xiaodong, Jia Jun*   

  1. VIP-II Gastrointestinal Cancer Division of the Department of Medicine, Peking University Cancer Hospital & Institute; Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing 100142, China
  • Received:2022-11-29 Online:2023-04-21 Published:2023-04-18

Abstract: Objective To identify the characteristics and risk factors associated with immune-related adverse events (irAEs) in gastrointestinal cancer patients treated with immune checkpoint inhibitors (ICIs). Methods  We retrospectively investigated clinical data of 95 gastrointestinal cancer patients from April 2019 to October 2021 in Peking University Cancer Hospital. The clinical characteristics and irAEs data of these patients were analyzed. Binary Logistic regression analysis was used to identify irAEs and endocrine irAEs risk factors. Results  In the 95 patients enrolled, the total number and median number of ICIs treatment cycles were 458 and 3(range:1-33). The incidence of irAEs and grade 3-4 irAEs were 55.8% and 9.5%, respectively. The most common irAEs were skin irAEs (27.4%) and endocrine irAEs (22.1%). Among endocrine irAEs, hypothyroidism occurred most frequently (16.8%), while adrenocortical dysfunction (2.1%) and hypophysitis (1.1%) were rare. Most irAEs occurred in the early stage of immunotherapy, and 78.2% occurred within 12 weeks. The earlier onset irAEs were allergy and skin irAEs, with a median occurrence time of 2 weeks (range:0.9-3.1 weeks) and 3.8 weeks (range:0.9-17.9 weeks), respectively. The median onset time of endocrine irAEs was 6.9 weeks (range:3.0-52.1 weeks). Multivariate analysis revealed that female(OR=5.197,95%CI:1.166-23.154,P=0.031) and microsatellite instability-high (MSI-H)(OR=35.048, 95%CI:2.756-445.787, P=0.006)were independent risk factors of endocrine irAEs. Immunotherapy combined with chemotherapy (OR=0.107, 95%CI:0.021-0.412, P=0.001) was an independent protective factors. Conclusion  The application of ICIs in patients with gastrointestinal cancer was well tolerated. Female and MSI-H patients have an increased risk of endocrine irAEs. Immunotherapy combined with chemotherapy may reduce the risk of endocrine irAEs.

Key words: gastrointestinal cancer, immune checkpoint inhibitors, immune-related adverse events

CLC Number: