AQP4 antibodies

Higher levels of self-reactive antibodies against aquaporin-4 protein (AQP4), which drives neuroinflammation in most cases of neuromyelitis optica spectrum disorder (NMOSD), correlate with more severe relapses and visual disability, according to a large study. Even after treatment with immunosuppressive agents, patients with high anti-AQP4 antibodies experienced more severe relapses.

Health Canada has approved Uplizna (inebilizumab-cdon) to treat adults in the country with neuromyelitis optica spectrum disorder (NMOSD) who test positive for disease-driving anti-aquaporin-4 (AQP4) antibodies. The decision adds Canada to the list of nations where the medication is now available. The intravenous or into-the-vein infusion, developed by…

Ultomiris (ravulizumab) has been approved by authorities in Japan to prevent relapses in adults with neuromyelitis optica spectrum disorder (NMOSD) positive for antibodies against aquaporin-4 (AQP4). The decision from the Japanese Ministry of Health, Labour and Welfare comes shortly after a similar approval by the European Commission,…

Ultomiris (ravulizumab) has been approved by the European Commission to treat adults with neuromyelitis optica spectrum disorder (NMOSD) who test positive for antibodies against aquaporin-4 (AQP4). “Effective NMOSD management hinges on reducing relapses – even a single relapse may cause irreversible disabilities leaving patients unable to move, speak…

A global Phase 4 clinical trial of Enspryng (satralizumab), approved to treat the most common form of neuromyelitis optica spectrum disorder (NMOSD), is enrolling newly diagnosed and other patients who could not or did not take part in Phase 3 trials of the therapy. In addition to people new…

Being positive for or showing high levels of antibodies against the aquaporin-4 (AQP4) protein at diagnosis doesn’t predict worse outcomes for people with neuromyelitis optica spectrum disorder (NMOSD), according to a small study. Plasma exchange therapy was linked with a trend for slower disability progression, although it wasn’t…

Reaching a neuromyelitis optica spectrum disorder (NMOSD) diagnosis in the absence of disease-causing antibodies requires careful attention from physicians in order to ensure timely treatment. That suggestion comes from a case report of a man in Nepal who had symptoms of the autoimmune disease but lacked the antibodies against…

The CoronaVac vaccine, which contains inactivated SARS-CoV-2, the virus that causes COVID-19, led to a severe case of late-onset neuromyelitis optica spectrum disorder (NMOSD) in a 70-year-old woman. The unique case was described in an article, “Fulminant neuromyelitis optica spectrum disorder (NMOSD) following COVID-19 vaccination: A…

A man’s first manifestation of neuromyelitis optica spectrum disorder (NMOSD) was aseptic meningitis, an inflammation of the meninges (the membranes that enclose the brain and spinal cord) without evidence of a bacterial infection, which is unusual and made a quick diagnosis difficult, says a report from Japan. The man…

Vaccination against SARS-CoV-2, the virus that causes COVID-19, may trigger neuromyelitis optica spectrum disorder (NMOSD), a case report suggests. The report, “Antibody‐Positive Neuromyelitis Optica Spectrum Disorder After Second COVID‐19 Vaccination: a Case Report,” was published in the journal SN Comprehensive Clinical Medicine. Recommended…