Subacute parkinsonism induced by immune checkpoint inhibitors

Immune checkpoint inhibitors can trigger immune-related side effects, and while neurological involvement is rare, it can be serious. A woman with treatment-refractory intestinal T-cell lymphoma was initiated pembrolizumab and developed a daily fever and parkinsonian syndrome 2 weeks later. The inves...

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Main Authors: Lénia Silva, Inês Laranjinha, Cláudia Casais, Raquel Samões
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2024-12-01
Series:Annals of Movement Disorders
Subjects:
Online Access:https://doi.org/10.4103/aomd.aomd_40_24
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author Lénia Silva
Inês Laranjinha
Cláudia Casais
Raquel Samões
author_facet Lénia Silva
Inês Laranjinha
Cláudia Casais
Raquel Samões
author_sort Lénia Silva
collection DOAJ
description Immune checkpoint inhibitors can trigger immune-related side effects, and while neurological involvement is rare, it can be serious. A woman with treatment-refractory intestinal T-cell lymphoma was initiated pembrolizumab and developed a daily fever and parkinsonian syndrome 2 weeks later. The investigation revealed only mild slowing of the background activity on electroencephalogram and slightly elevated cell count and protein levels in her cerebrospinal fluid. Immunotherapy was discontinued, and the patient recovered after 5 days of methylprednisolone. Minor neurological symptoms recurred after the rechallenge with pembrolizumab. Subacute parkinsonian syndromes should be considered a potential neurological event related to immune checkpoint inhibitors.
format Article
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institution Kabale University
issn 2590-3446
2590-3454
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publishDate 2024-12-01
publisher Wolters Kluwer Medknow Publications
record_format Article
series Annals of Movement Disorders
spelling doaj-art-08c840eed621490384c42722cf36a36c2025-01-17T10:41:07ZengWolters Kluwer Medknow PublicationsAnnals of Movement Disorders2590-34462590-34542024-12-017322422610.4103/aomd.aomd_40_24Subacute parkinsonism induced by immune checkpoint inhibitorsLénia SilvaInês LaranjinhaCláudia CasaisRaquel SamõesImmune checkpoint inhibitors can trigger immune-related side effects, and while neurological involvement is rare, it can be serious. A woman with treatment-refractory intestinal T-cell lymphoma was initiated pembrolizumab and developed a daily fever and parkinsonian syndrome 2 weeks later. The investigation revealed only mild slowing of the background activity on electroencephalogram and slightly elevated cell count and protein levels in her cerebrospinal fluid. Immunotherapy was discontinued, and the patient recovered after 5 days of methylprednisolone. Minor neurological symptoms recurred after the rechallenge with pembrolizumab. Subacute parkinsonian syndromes should be considered a potential neurological event related to immune checkpoint inhibitors.https://doi.org/10.4103/aomd.aomd_40_24immune checkpoint inhibitorparkinsonismpembrolizumab
spellingShingle Lénia Silva
Inês Laranjinha
Cláudia Casais
Raquel Samões
Subacute parkinsonism induced by immune checkpoint inhibitors
Annals of Movement Disorders
immune checkpoint inhibitor
parkinsonism
pembrolizumab
title Subacute parkinsonism induced by immune checkpoint inhibitors
title_full Subacute parkinsonism induced by immune checkpoint inhibitors
title_fullStr Subacute parkinsonism induced by immune checkpoint inhibitors
title_full_unstemmed Subacute parkinsonism induced by immune checkpoint inhibitors
title_short Subacute parkinsonism induced by immune checkpoint inhibitors
title_sort subacute parkinsonism induced by immune checkpoint inhibitors
topic immune checkpoint inhibitor
parkinsonism
pembrolizumab
url https://doi.org/10.4103/aomd.aomd_40_24
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AT ineslaranjinha subacuteparkinsonisminducedbyimmunecheckpointinhibitors
AT claudiacasais subacuteparkinsonisminducedbyimmunecheckpointinhibitors
AT raquelsamoes subacuteparkinsonisminducedbyimmunecheckpointinhibitors