Clinical Strategy for the Diagnosis and Treatment of Immune Checkpoint Inhibitor-Associated Myocarditis: A Narrative Review

Lorenz H. Lehmann, Jennifer Cautela, Nicolas Palaskas, Alan H. Baik, Wouter C. Meijers, Yves Allenbach, Joachim Alexandre, Tienush Rassaf, Oliver J. Müller, Mandar Aras, Aarti H. Asnani, Anita Deswal, Michal Laufer-Perl, Franck Thuny, Mathieu Kerneis, Salim S. Hayek, Stéphane Ederhy, Joe Elie Salem, Javid J. Moslehi

Research output: Contribution to journalArticlepeer-review

Abstract

Importance: In the last decade, immune checkpoint inhibitors (ICIs) have been approved for the treatment of many cancer types. Immune checkpoint inhibitor-associated myocarditis has emerged as a significant and potentially fatal adverse effect. Recognizing, diagnosing, and treating ICI-associated myocarditis poses new challenges for the practicing clinician. Here, the current literature on ICI-associated myocarditis is reviewed. Observations: Clinical presentation and cardiac pathological findings are highly variable in patients with ICI-associated myocarditis. Although endomyocardial biopsy is the criterion standard diagnostic test, a combination of clinical suspicion, cardiac biomarkers (specifically troponin), and cardiac imaging, in addition to biopsy, is often needed to support the diagnosis. Importantly, the combination of a cytotoxic T-lymphocyte-associated protein 4 inhibitor with a programmed cell death protein 1 or programmed death-ligand 1 inhibitor increases the risk of developing ICI-associated myocarditis. Conclusion and Relevance: This review aims to provide a standardized diagnostic and therapeutic approach for patients with suspected ICI-associated myocarditis. A complete history of recent cancer treatments and physical examination in combination with cardiac biomarkers, cardiac imaging, and endomyocardial biopsy represent a pragmatic diagnostic approach for most cases of ICI-associated myocarditis. The addition of novel biomarkers or imaging modalities is an area of active research and should be evaluated in larger cohorts..

Original languageEnglish
Pages (from-to)1329-1337
Number of pages9
JournalJAMA Cardiology
Volume6
Issue number11
DOIs
StatePublished - Nov 2021
Externally publishedYes

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