News

Severe attack, relapse rate predict poor azathioprine, MMF response

A severe attack or a higher annual relapse rate before starting azathioprine or mycophenolate mofetil (MMF) was associated with a poor response in people with neuromyelitis optica spectrum disorder (NMOSD), a small study shows. An unsatisfactory response to either treatment, defined as a severe relapse or two or more…

FDA approves Ultomiris to treat adults with AQP4-related NMOSD

The U.S. Food and Drug Administration (FDA) has approved Ultomiris (ravulizumab-cwvz) to treat adults with neuromyelitis optica spectrum disorder (NMOSD) who are positive for antibodies against the aquaporin-4 (AQP4) protein. About 75% of people with NMOSD produce antibodies that bind to AQP4, according to the therapy’s developer, Alexion…

Immune B-cells train T-cells to prevent NMOSD: Mouse study

Under normal circumstances, immune B-cells train T-cells, another type of immune cell, on which targets not to attack, preventing the development of neuromyelitis optica spectrum disorder (NMOSD), according to a study in mice. This training occurs in the thymus gland, a small organ behind the breastbone that works as…

Blood markers NfL, GFAP provide useful information in NMOSD

Two blood markers — neurofilament light chain (NfL) and glial fibrillary acidic protein (GFAP) — provide complementary clinical information about neuromyelitis optica spectrum disorder (NMOSD), a review study highlights. “Based on the results of several studies, both NfL and GFAP are considered to have their own strengths as clinical…

Prevalence of disease for NMOSD estimated at 22,000 US patients

A new study of disease prevalence estimates that about 22,000 people in the U.S. were living with neuromyelitis optica spectrum disorder (NMOSD) in 2022. The findings also suggest that the progressive autoimmune disease is most common in Black women, as compared with other U.S. demographics. For Asian American women,…