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Medicina (Buenos Aires)
versão impressa ISSN 0025-7680versão On-line ISSN 1669-9106
Resumo
MYSLER, Shirly J.; PERAZZO, Florencia e MANDO, Pablo. Autoimmune encephalitis related to nivolumab followed by tumor regression. Medicina (B. Aires) [online]. 2023, vol.83, n.3, pp.479-483. ISSN 0025-7680.
Immune checkpoints inhibitors have shown a re markable improvement in overall survival of stage IV renal cell carcinoma patients. Nevertheless, there is a wide range of immune-related adverse events (IRAE) that arise from these revolutionary treatments. Autoim mune encephalitis is a rare but severe central nervous system IRAE in these cancer patients. The severities of these IRAEs preclude patients from continuing im munotherapy treatment. Few cases of autoimmune encephalitis with immunotherapy have been described in the literature and optimal clinical management of these events as well as patient’s immune-mediated response after treatment suspension is still unclear. Here, we report a case of a 67 years-old woman with stage IV renal cell carcinoma under treatment with nivolumab who developed autoimmune encephalitis. After high doses of corticosteroids patient’s condition improved significantly with full recovery after 5 days of treatment. Even though nivolumab was not reinstalled, a persistent response of her oncologic disease was evi denced. We expect that this case can contribute to the existing literature of both subjects, the management of autoimmune encephalitis as grade IV immune related adverse event and the responses of immune checkpoint inhibitors after IRAE.
Palavras-chave : Encephalitis; Nivolumab; Immunotherapy; Adverse events.