Development of Nivolumab/Ipilimumab-Associated Autoimmune Nephritis during Steroid Therapy

2021 
Immunotherapy using immune checkpoint inhibitors revolutionized therapies for a variety of malignancies. Nivolumab, an antibody blocking programmed cell death 1 protein, and ipilimumab that blocks cytotoxic T-lymphocyte-associated protein 4 effectively target tumor cells by disinhibiting the endogenous immune response. At the same time, unrestrained T-cell activation may trigger a range of immune-mediated side effects including kidney injury. Steroid therapy constitutes the mainstay of treatment of these adverse events, but dosage, route of administration, and approach to nivolumab re-exposure remain unclear. Here, we report the case of a 72-year-old male patient who developed severe nivolumab/ipilimumab-associated acute kidney injury while on oral steroid therapy for immune-mediated colitis. Acute interstitial nephritis was confirmed by renal biopsy. Administration of high-dose intravenous steroid doses was required to revert declining renal function.
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