Journal
JOURNAL OF IMMUNOTHERAPY
Volume 43, Issue 5, Pages 165-168Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/CJI.0000000000000314
Keywords
PNSs; encephalitis; enteric neuropathy; anti-Hu antibody; ICIs
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Paraneoplastic neurological syndromes (PNSs) are uncommon complications of immune-checkpoint inhibitor (ICI) therapy. This article reports a case of paraneoplastic encephalitis and enteric neuropathy associated with anti-Hu antibody in a patient with advanced small cell lung cancer. Symptoms presented in the third week after the second dose of sintilimab therapy and manifested as focal seizures and intestinal pseudo-obstruction. The patient's neurological symptoms improved significantly after treatment with intravenous infusion of methylprednisolone and sequential oral prednisone. This is the first report of sintilimab-related neurological adverse events. On the basis of this case, we speculate that ICIs may induce PNSs. Identifying relevant biomarkers may be instructive for the diagnosis and treatment of small cell lung cancer patients, and discontinuing ICIs and treatment with immunosuppressive in the early stages of PNSs may contribute to a better prognosis.
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