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A case of anti-aquaporin-4 antibody-positive optic neuritis treated with early initiation of inebilizumab after acute-phase therapy Shoko Ito 1 , Ryohei Hiwatashi 1 , Takahiro Suzuki 1 1Department of Ophthalmology, Tokai University School of Medicine pp.1239-1244
Published Date 2026/10/15
DOI https://doi.org/10.11477/mf.037055790800101239
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Abstract Purpose:Anti-aquaporin-4(AQP4) antibody-positive optic neuritis often leads to severe visual impairment, and some patients fail to achieve sufficient visual recovery despite standard acute-phase treatments. We report a case in which inebilizumab, an established relapse-prevention therapy for neuromyelitis optica spectrum disorder(NMOSD), was initiated early after completion of acute-phase treatment.

Case:A 61-year-old woman presented with visual field disturbance in the left eye and was diagnosed with NMOSD-associated optic neuritis based on positivity for anti-aquaporin-4 antibodies. She received two courses of high-dose intravenous methylprednisolone followed by five sessions of plasma exchange. Although her best-corrected visual acuity improved to 0.04 by day 15, a central visual field defect remained. Inebilizumab was then initiated early after completion of acute-phase treatment for relapse prevention. No further relapse occurred, and both visual acuity and visual field gradually improved during follow-up.

Conclusion:In a case of AQP4 antibody-positive optic neuritis, inebilizumab was initiated early after acute-phase therapy, and visual function improved during follow-up. Although the mechanism underlying this improvement cannot be clearly determined, as it may reflect the natural course or delayed effects of acute-phase treatment, early initiation of inebilizumab may have clinical significance.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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