Abstract
Hepatotoxicity is a major immune-related adverse event that may become life-threatening. The impact of adding immune checkpoint blockade (ICB) to systemic therapy on the incidence of hepatotoxicity remains unknown. We performed a systematic review and meta-analysis to compare the incidence of hepatotoxicity among patients with cancer who received therapy with and without addition of ICB. PubMed, Embase, Web of Science, and Cochrane Library were searched to select phase 3 randomized controlled trials (RCTs) evaluating the effect of adding ICB to systemic therapy, placebo, or supportive care. The odds ratio (OR) of any grade and grade 3–5 hepatitis, elevations in aspartate aminotransferase (AST), and alanine aminotransferase (ALT) was pooled for meta-analysis. 43 RCTs with 28,905 participants were analyzed. Addition of ICB increased the incidence of hepatitis (any grade: OR, 2.13, 95% confidence interval [CI] 1.52–2.97, grade 3–5: OR, 2.66, 95% CI 1.72–4.11), elevated AST (any grade: OR, 2.16, 95% CI 1.73–2.70, grade 3–5: OR, 2.72, 95% CI 1.86–3.99), and elevated ALT (any grade: OR, 2.01, 95% CI 1.59–2.54, grade 3–5: OR, 2.40, 95% CI 1.62–3.55). Subgroup analysis based on the ICB mechanism revealed no significant heterogeneity among each mechanism for hepatitis (any Grade: I2 = 11.1%, p for heterogeneity = 0.32, grade 3–5: I2 = 0%, p = 0.48). Adding ICB to systemic therapy increases the incidence of hepatotoxicity regardless of the mechanism of ICB. Hepatotoxicity is common and vigilant monitoring of liver function is required during ICB therapy for patients with cancer.
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Data availability
Data are available in a public, open access repository. All data relevant to the study are included in the article or uploaded as supplementary information.
Abbreviations
- AST:
-
Aspartate aminotransferase
- ALT:
-
Alanine aminotransferase
- CI:
-
Confidence interval
- CTLA-4:
-
Cytotoxic T-lymphocyte antigen
- ICB:
-
Immune checkpoint blockade
- irAE:
-
Immune-related adverse event
- OR:
-
Odds ratio
- PD-1:
-
Programmed cell death 1
- PD-L1:
-
Programmed death-ligand 1
- PRISMA:
-
Preferred reporting items for systematic reviews and mata-analysis
- RCT:
-
Randomized clinical trial
- trAE:
-
Treatment-related adverse event
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YF had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: YF, NH, HN. Acquisition, analysis, or interpretation of data: All authors. Drafting of the manuscript: YF, NH, MH. Critical revision and final approval of the manuscript: All authors. Supervision: NH, MH, MDG.
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None of the authors have a conflict of interest to report for the submitted work. M.D.G. reports stock from Rappta Therapeutics; a consulting/advisory role for BioMotiv, Janssen, Dendreon, Merck, GlaxoSmithKline, Lilly, Astellas Pharma, Genentech, Bristol-Myers Squibb, Novartis, Pfizer, EMD Serono, AstraZeneca, Seattle Genetics, Incyte, Aileron Therapeutics, Dracen, Inovio Pharmaceuticals, NuMab, Dragonfly Therapeutics, Basilea, Urogen, Infinity Pharmaceuticals, and Gilead; and institutional research funding from Janssen Oncology, Dendreon, Novartis, Bristol-Myers Squibb, Merck, AstraZeneca, and Genentech/Roche.
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Fujiwara, Y., Horita, N., Harrington, M. et al. Incidence of hepatotoxicity associated with addition of immune checkpoint blockade to systemic solid tumor therapy: a meta-analysis of phase 3 randomized controlled trials. Cancer Immunol Immunother 71, 2837–2848 (2022). https://doi.org/10.1007/s00262-022-03203-7
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DOI: https://doi.org/10.1007/s00262-022-03203-7