Elevation of serum neurofilament light-chain levels disclose possible occult progressive multifocal leukoencephalopathy and immune reconstitution syndrome in a patient receiving ozanimod: a case report.

Autor: Quintanilla-Bordás, Carlos, Gorriz, David, Cubas-Núñez, Laura, Castillo-Villalba, Jéssica, Carreres-Polo, Joan, Casanova, Bonaventura, Pérez-Miralles, Francisco Carlos
Předmět:
Zdroj: Frontiers in Immunology; 2024, p1-4, 4p
Abstrakt: Background: We report the first case of findings suggestive of progressive multifocal leukoencephalopathy and immune restitution syndrome (PML-IRIS) in a patient with multiple sclerosis receiving ozanimod preceded by an unexpected increase in the serum neurofilament light-chain (sNfL) levels. Case report: A 57-year-old-woman treated with ozanimod for the last 8 years presented, during surveillance MRI, with findings compatible with PML-IRIS. Overt clinical symptoms were absent. sNfL levels increased 4 months earlier and peaked at presentation. Lymphocyte count reached nadir of 330/mL at 8 months earlier. Conclusion: The case illustrates the utility of sNfL levels for PML surveillance in patients receiving immunosuppressors. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index