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Published on: November 3, 2023
Immune Checkpoint Inhibitor-Related Acute Kidney Injury: Management and Challenges
1Section of Nephrology, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Background:
Immune checkpoint inhibitors (ICIs) have been increasingly used over the past decade for treatment of several cancer types. Despite the excellent cancer response they provide, their use has been associated with serious immune-related adverse events affecting multiple systems including the kidney. Currently, limited data are available to guide treatment of acute kidney injury secondary to ICI use (ICI-AKI) due to tubulointerstitial nephritis or glomerulonephritis. Another huge obstacle is the safety of resuming ICI following an episode of ICI-AKI.
Summary:
Acute tubulointerstitial nephritis (ATIN) is the most common pathology associated with ICI-AKI, followed by other less common forms of glomerulonephritis. Management of this disorder is very challenging. Corticosteroids therapy remains the mainstay treatment for patients with ICI-ATIN. Use of other immunosuppressants for ICI-ATIN and recurrent ICI-ATIN has been also described in the literature. In patients with ICI-related glomerulonephritis, the use of rituximab is the more common approach reported in the literature. Regarding the safety to resume ICI following an episode of ICI-AKI, this decision should be made following a multidisciplinary approach on a case-by-case basis.
Key Messages:
Limited evidence is available to guide management in patients with ICI-AKI. More prospective studies are needed in the future to better guide treatment of cancer patients with ICI-AKI.
Insights
Immune checkpoint inhibitor-acute kidney injury (ICI-AKI) is a serious side effect of cancer treatment. Acute tubulointerstitial nephritis is most common, treated with corticosteroids, but resuming ICIs requires careful case-by-case evaluation.
Area of Science:
- Oncology
- Nephrology
- Immunology
Background:
- Immune checkpoint inhibitors (ICIs) are widely used for cancer treatment.
- Adverse events, including kidney injury (ICI-AKI), can occur.
- Limited data exist for managing ICI-AKI and resuming ICIs post-injury.
Purpose of the Study:
- To review current understanding of ICI-AKI.
- To discuss management strategies for ICI-AKI.
- To explore the safety of resuming ICIs after ICI-AKI.
Main Methods:
- Literature review of ICI-AKI.
- Analysis of treatment approaches for ICI-AKI.
- Discussion of clinical decision-making for ICI re-challenge.
Main Results:
- Acute tubulointerstitial nephritis is the most frequent ICI-AKI pathology.
- Corticosteroids are the primary treatment for ICI-ATIN.
- Rituximab is often used for ICI-related glomerulonephritis.
Conclusions:
- ICI-AKI management is challenging.
- Treatment decisions for ICI-AKI and re-challenge should be individualized.
- Further prospective studies are needed to guide ICI-AKI management.
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