AQP4 autoantibodies

CCL2, a signaling protein that recruits immune cells to sites of injury, may play a key role in driving the nerve damage that results from antibodies against the aquaporin-4 (AQP4) protein in neuromyelitis optica spectrum disorder (NMOSD), a study suggests. The signaling protein was found to be elevated in…

A European Medicines Agency (EMA) committee has recommended that Ultomiris (ravulizumab) be approved to treat adults with neuromyelitis optica spectrum disorder (NMOSD) who are positive for antibodies against aquaporin-4 (AQP4). The recommendation, from the EMA’s Committee for Medicinal Products for Human Use (CHMP), will now be reviewed by the European…

The activation of two types of immune cells — called natural killer (NK) and natural killer T-cells (NKT) — may contribute to the abnormal immune attacks that drive neuromyelitis optica spectrum disorder (NMOSD), a study suggested. The profile of these cells in NMOSD patients differed notably from that observed…

Among people with neuromyelitis optica spectrum disorder (NMOSD) who started treatment with Uplizna (inebilizumab-cdon) in a clinical trial, an early and strong reduction in B-cell counts was associated with a quicker decline in disease activity. This report comes from an analysis of data from the Phase 2/3…

Self-reactive antibodies that cause most cases of neuromyelitis optica spectrum disorder (NMOSD) are released directly from immune B-cells in lymph nodes as opposed to cells in the bloodstream, a study has discovered. These findings implicate ongoing lymph node activity as the main driver of disease-causing antibody production in NMOSD.

Giving immunosuppressive therapy to patients with antibodies against aquaporin-4 protein (AQP4) and optic neuritis but no symptoms may help resolve observed lesions and prevent a relapse of neuromyelitis optica spectrum disorder (NMOSD), a case report suggests. The case study, “Radiologically isolated aquaporin-4 antibody neuromyelitis optica spectrum disorder,” was…

Long-term treatment with Uplizna (inebilizumab-cdon) safely and effectively reduced the frequency of attacks in the 12 neuromyelitis optica spectrum disorder (NMOSD) patients who were negative for antibodies against aquaporin-4 (AQP4) in the N-MOmentum Phase 2/3 trial. Future, appropriately-controlled studies are needed to confirm Uplizna’s benefits in this subgroup…

A committee of the European Medicines Agency has recommended approving Uplizna (inebilizumab-cdon) for adults with neuromyelitis optica spectrum disorder (NMOSD) who test positive for aquaporin-4 water channel autoantibodies (AQP4-IgG). This recommendation from the Committee for Medicinal Products for Human Use, known as CHMP, will now be reviewed by…