Renal Tubular Acidosis and Immune Checkpoint Inhibitor Therapy: An Immune-Related Adverse Event of PD-1 Inhibitor—A Report of 3 Cases

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Abstract

The main cause of acute kidney injury in patients receiving immune checkpoint inhibitors (ICIs) is acute interstitial nephritis. However, as their use continues to increase, other kidney manifestations are being described. We report 3 cases of patients treated with ICIs who developed predominantly electrolyte disorders secondary to renal tubular acidosis as an immune-related adverse event and discuss the potential mechanism. Nongap acidosis in combination with hypokalemia should raise suspicion for distal renal tubular acidosis in patients treated with ICIs.

Original languageEnglish (US)
Pages (from-to)657-662
Number of pages6
JournalKidney Medicine
Volume2
Issue number5
DOIs
StatePublished - Sep 1 2020

Keywords

  • acute interstitial nephritis
  • case report
  • Immune checkpoint inhibitors
  • immune-related adverse event
  • PD-1 inhibitor
  • renal tubular acidosis

ASJC Scopus subject areas

  • Internal Medicine
  • Nephrology

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