PMID- 24680560 OWN - NLM STAT- MEDLINE DCOM- 20141222 LR - 20151119 IS - 1878-5883 (Electronic) IS - 0022-510X (Linking) VI - 340 IP - 1-2 DP - 2014 May 15 TI - Cryptococcal meningitis in a multiple sclerosis patient taking natalizumab. PG - 109-11 LID - S0022-510X(14)00150-6 [pii] LID - 10.1016/j.jns.2014.03.007 [doi] AB - IMPORTANCE: Natalizumab was approved in 2004 by the US Food and Drug Administration (US-FDA) for treatment of multiple sclerosis (MS), however it was temporarily withdrawn after its use was associated with progressive multifocal leukoencephalopathy (PML). Other reported adverse events have included melanoma, primary central nervous system (CNS) lymphoma, and gastrointestinal cryptosporidiosis. An MS exacerbation may occur after discontinuation and immune reconstitution inflammatory syndrome (IRIS), particularly in the setting of PML, is also possible. We present the first case of cryptococcal meningitis in a patient taking natalizumab. Managements of both cryptococcal meningitis and MS after discontinuation of natalizumab are the focus of this report. OBSERVATIONS: This is a case report describing a 49-year old Caucasian man with relapsing-remitting MS (RR-MS) on natalizumab. On the twenty-fourth month of natalizumab treatment, he developed cryptococcal meningitis, prompting its discontinuation. Two months later, off natalizumab, while on antifungal treatment, he developed an MS exacerbation. Cerebrospinal fluid (CSF) JC virus polymerase chain reaction (PCR) and human immunodeficiency virus (HIV) serology were repeatedly negative. CONCLUSIONS AND RELEVANCE: Although specific recommendations for treating natalizumab-associated cryptococcal meningitis do not exist, our patient discontinued natalizumab and started conventional anti-fungal treatment. Two months later, he was treated with steroids due to worsening neurologic status from a presumed MS attack. Subsequently, he improved with successful treatment of the cryptococcal meningitis, with no new clinical or radiographic exacerbations. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Valenzuela, Reuben Mari AU - Valenzuela RM AD - Department of Neurology, University of Illinois College of Medicine, Illinois Neurologic Institute, Department of Medicine, Peoria, United States. FAU - Pula, John H AU - Pula JH AD - Department of Neurology, University of Illinois College of Medicine, Illinois Neurologic Institute, Department of Medicine, Peoria, United States. FAU - Garwacki, Dennis AU - Garwacki D AD - Department of Neurology, University of Illinois College of Medicine, Illinois Neurologic Institute, Department of Medicine, Peoria, United States. FAU - Cotter, John AU - Cotter J AD - Division of Infectious Diseases, University of Illinois College of Medicine, Peoria, United States. FAU - Kattah, Jorge C AU - Kattah JC AD - Department of Neurology, University of Illinois College of Medicine, Illinois Neurologic Institute, Department of Medicine, Peoria, United States. Electronic address: kattahj@uic.edu. LA - eng PT - Case Reports PT - Journal Article DEP - 20140311 PL - Netherlands TA - J Neurol Sci JT - Journal of the neurological sciences JID - 0375403 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Natalizumab) SB - IM MH - Antibodies, Monoclonal, Humanized/*therapeutic use MH - Corpus Callosum/drug effects/pathology MH - Follow-Up Studies MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Meningitis, Cryptococcal/complications/*drug therapy MH - Middle Aged MH - Multiple Sclerosis/complications/*drug therapy MH - Natalizumab OTO - NOTNLM OT - Cryptoccocal meningitis OT - Immune reconstitution inflammatory syndrome (IRIS) OT - Multiple sclerosis (MS) OT - Natalizumab OT - Progressive multifocal leukoencephalopathy (PML) OT - Relapsing-remitting MS EDAT- 2014/04/01 06:00 MHDA- 2014/12/23 06:00 CRDT- 2014/04/01 06:00 PHST- 2013/09/11 00:00 [received] PHST- 2014/02/11 00:00 [revised] PHST- 2014/03/04 00:00 [accepted] PHST- 2014/04/01 06:00 [entrez] PHST- 2014/04/01 06:00 [pubmed] PHST- 2014/12/23 06:00 [medline] AID - S0022-510X(14)00150-6 [pii] AID - 10.1016/j.jns.2014.03.007 [doi] PST - ppublish SO - J Neurol Sci. 2014 May 15;340(1-2):109-11. doi: 10.1016/j.jns.2014.03.007. Epub 2014 Mar 11.