Abstract
BackgroundImmune checkpoint inhibitors have become the first line therapy in melanoma treatment and their use is extending to other malignancies. However, we are still learning about immune side effects produced by these drugs and their severity especially in patients with history of inflammatory diseases.Case presentationWe present two cases of metastatic melanoma treated with nivolumab and pembrolizumab (anti PD-1). Both patients developed acute interstitial nephritis during immune checkpoint therapy. We emphasize the causal association between immune checkpoint inhibitors and the nephritis. The timing of drug administration and appearance of nephritis is suggestive of a causal relation between the checkpoint inhibitor therapy and this adverse event.ConclusionsAlthough uncommon, some side effects from checkpoint inhibitors can be severe and may need to be addressed with immunosuppression. Given the increasing frequency of immunotherapy use, awareness should be raised in regards to immune side effects and their appropriate management.
Highlights
Immune checkpoint inhibitors have become the first line therapy in melanoma treatment and their use is extending to other malignancies
Given the increasing frequency of immunotherapy use, awareness should be raised in regards to immune side effects and their appropriate management
Programed death 1 receptor (PD-1), transmits inhibitory signals to immune cells leading to decreased proliferation and apoptosis
Summary
Some side effects from checkpoint inhibitors can be severe and may need to be addressed with immunosuppression.
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