Recommendation for the diagnosis and management of immune checkpoint inhibitor related infections

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Abstract
Immune checkpoint inhibitors (ICIs) have been widely used in the management of malignant tumors. Programmed death 1 (PD‐1)/PD‐1 ligand (PD‐L1) inhibitors have been introduced to treat non‐small cell lung cancer (NSCLC) in recent years. Currently, PD‐1/PD‐L1 inhibitors are considered to have minor side effects and do not independently increase the risk of infection. However, they may cause immune‐related adverse events (irAEs) that require immunosuppressive therapy with corticosteroids and/or immunosuppressants, leading to opportunistic infections. Furthermore, there have been reports describing reactivation of chronic/latent infections without irAEs or having received immunosuppressants. Thus, immune checkpoint inhibitor related infections have received more attention worldwide. In this paper, we review available clinical data, describe the potential mechanism, and propose recommendations for the diagnosis and clinical management of PD‐1/PD‐L1 inhibitor‐related infections.
Funding Information
  • Fundamental Research Funds for the Central Universities (3332018035)
  • National Natural Science Foundation of China (81572057, 81802049)

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