Biomarkers to predict relapse in myelin oligodendrocyte glycoprotein antibody-associated disease: a systematic review and meta-analysis
- PMID: 41033784
- DOI: 10.1136/jnnp-2025-337039
Biomarkers to predict relapse in myelin oligodendrocyte glycoprotein antibody-associated disease: a systematic review and meta-analysis
Abstract
Background: Detection of immunoglobulin G targeting myelin oligodendrocyte glycoprotein (MOG-IgG) is the mainstay of laboratory diagnosis of MOG antibody-associated disease. Laboratory biomarkers have the potential to predict disease course and activity, thus informing prompt therapeutic decisions to minimise relapse-associated disability accrual.
Methods: This systematic review with meta-analysis was registered in PROSPERO (CRD42024554429). MEDLINE, Embase and Scopus databases were searched. Random-effects or mixed-effects modelling was performed and OR or HR with 95% CIs reported.
Results: 106 studies with ≥1710 individuals were included. A relapsing course was associated with persistent seropositivity on serial samples collected ≥3 months apart (OR 2.7 (95% CI 1.8 to 4.0), p<0.0001), lower likelihood of seroreversion to negative status (HR 0.19 (95% CI 0.14 to 0.26), p<0.0001) and delayed seroreversion compared with monophasic participants (median 19 years vs 2.5 years, p<0.0001). Acute disseminated encephalomyelitis was associated with a non-relapsing course (OR 0.049 (95% CI 0.0029 to 0.84), p=0.037). Serum MOG-IgG titre-negative, low positive or clear positive-discriminated disease state: attack was associated with clear positive titre (OR 3.6 (95% CI 2.6 to 5.0), p<0.0001), but not negative titre (OR 0.073 (95% CI 0.028 to 0.19), p<0.0001). Cerebrospinal fluid (CSF) leucocytosis (≥5 cells/µL) was associated with attack (OR 3.1 (95% CI 1.7 to 5.9), p=0.0004). Neither serum glial fibrillary acidic protein nor neurofilament light chain correlated with disease activity. Novel biomarkers of disease course and activity have also been assessed qualitatively.
Conclusions: MOG-IgG serostatus and titre and CSF leucocytosis are biomarkers of disease course and activity. The findings provide rationale for serial serum MOG-IgG testing at an interval of 3-6 months in the first 12 months of disease to assist in relapse risk stratification.
Prospero registration number: CRD42024554429.
© Author(s) (or their employer(s)) 2025. Re-use permitted under CC BY. Published by BMJ Group.
Conflict of interest statement
Competing interests: JA and BT have no conflict of interest. RCD has received research funding from the Star Scientific Foundation, The Trish Multiple Sclerosis Research Foundation, Multiple Sclerosis Research Australia, the Petre Foundation and the NHMRC (Australia; Investigator Grant). He has also received honoraria from Biogen Idec as an invited speaker, and is on the IDMC for a Roche RCT in paediatric MS. He is on the medical advisory board (non-remunerated position). SR received research funding from the National Health and Medical Research Council (Australia), the Royal Australasian College of Physicians, and the University of Sydney. She serves as a consultant on an advisory board for UCB and Limbic Neurology, The MOG Project and the Sumaira Foundation, and has been an invited speaker for Biogen, Excemed, Alexxion, Limbic Neurology, and Novartis. FB has received research funding from investigator-initiated research grant from Novartis and MS Australia for this project. She also received funding form NSW Health, the National Health Medical Research Council (Australia), the Medical Research Future Fund (Australia). She was on advisory boards for Novartis, Merck, and The MOG Project and the Sumaira Foundation, and has been an invited speaker for Biogen, Novartis, and Limbic Neurology.
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