• J. Intern. Med. · Jan 2025

    Meta Analysis

    Association among major adverse cardiovascular events with immune checkpoint inhibitors: A systematic review and meta-analysis.

    • Haixia Li, Yanfei Zheng, Bin Li, Yinghao Zhi, Mingxian Chen, Jing Zeng, Qian Jiao, Yuxuan Tao, Xinmei Liu, Zican Shen, Jiahui Zhang, Weizhe Zhao, and Dong Chen.
    • Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
    • J. Intern. Med. 2025 Jan 1; 297 (1): 364636-46.

    BackgroundThis meta-analysis aimed to determine the incidence and overall risk of major adverse cardiovascular events (MACEs) related to immune checkpoint inhibitors (ICIs).MethodsWe systematically searched all cohort studies, including the available MACE data in cancer patients receiving ICIs, in PubMed, Embase, and the Cochrane Library, from their inception to September 5, 2023. The primary outcome was the incidence of MACEs associated with ICI exposure, and the secondary outcome was the overall risk of MACEs associated with ICI exposure versus non-ICI exposure controls. Risk ratios with 95% confidence intervals were used in the random- or fixed-effects models.ResultsOverall, 26 cohort studies met the inclusion criteria, involving 109,883 cancer patients. In the median follow-up period ranging from 3.3 to 55.2 months, the incidence of MACEs associated with ICI exposure was 8.22%, ranging from 0.55% to 3.98%, among the nine MACEs, including myocarditis, tachyarrhythmia, pericarditis, pericardial effusions, cardiovascular death, myocardial infarction, heart failure, stroke, and conduction disorder. The incidence of MACE associated with non-ICI exposure was 3.84%, ranging from 0.81% to 4.72%. The risks of all-grade MACEs and pericardial effusions were significantly higher in the ICI group than in the non-ICI controls. ICI treatment, age, male sex, and prior radiation therapy were significantly associated with MACEs.ConclusionThe risk of MACEs during ICI treatment in patients with cancer is more common than is currently recognized. ICI use is closely associated with an increased risk of MACEs. Patients at risk were older, male, and had a history of radiation therapy.© 2024 The Association for the Publication of the Journal of Internal Medicine.

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