News

Generalized MG severity tied to misdiagnosis, certain symptoms

People with generalized myasthenia gravis (gMG) who were misdiagnosed at least once and who have certain disease symptoms are more likely to see an increase in disease severity, according to a recent study. Ocular symptoms and/or muscle aches after physical activity were significantly associated with a higher risk of…

Rituximab treatment effective for 4-year-old’s MuSK-MG: Report

Rituximab may be safe and effective in treating young children with myasthenia gravis (MG) driven by antibodies that target muscle-specific tyrosine kinase (MuSK), according to a report detailing the case of a 4-year-old girl. The girl was one of the youngest MG patients to have received rituximab, according…

Diverse mechanisms found for myasthenia gravis’ AChR antibodies

Disease-causing antibodies from different myasthenia gravis (MG) patients bind to and affect the function of acetylcholine receptors (AChRs) in different ways, a study finds. While the mechanism varied, all the antibodies ultimately interfered with the usual activation of AChRs, which are the proteins important for normal muscle contractions commonly…

Symptoms of gMG controlled with long-term nipocalimab treatment

Long-term treatment with nipocalimab led to sustained reductions in symptom severity among antibody-positive patients with generalized myasthenia gravis (gMG) in a Phase 3 clinical trial. That’s according to new data presented by its developer, Johnson & Johnson, at the American Academy of Neurology (AAN) Annual Meeting this…

Telitacicept found to reduce gMG severity in Phase 3 trial in China

Treatment with Remegen’s telitacicept over nearly six months safely reduced disease severity in adults with generalized myasthenia gravis (gMG) and helped ease these patients’ symptoms. That’s according to new data from a Phase 3 clinical trial (NCT05737160) that was presented in a late-breaking session at this year’s…

Vyvgart Hytrulo prefilled syringe gets US regulatory approval

The U.S. Food and Drug Administration (FDA) has approved a version of Argenx’s Vyvgart Hytrulo (efgartigimod alfa and hyaluronidase-qvfc) that can be self-administered via a prefilled syringe to treat generalized myasthenia gravis (gMG). These prefilled syringes are indicated for adults with gMG who are positive for antibodies against…

Long-term benefits seen with Descartes-08 treatment in MG

Treatment with the cell therapy Descartes-08 led to long-term reductions in symptom severity for people with myasthenia gravis (MG) taking part in a Phase 2b clinical trial, according to updated data announced by therapy developer Cartesian Therapeutics. “Participants dosed with a single six-week course of treatment of…

Soliris biosimilar Epysqli now available in US for adults with gMG

Epysqli (eculizumab-aagh), a biosimilar of Soliris (eculizumab), is now available in the U.S. to treat adults with generalized myasthenia gravis (gMG) who test positive for antibodies against acetylcholine receptors (AChRs), the most common type of MG-causing antibodies. Besides myasthenia gravis (MG), Epysqli will also be available for…

Scientists develop assay to detect anti-agrin antibodies in MG

Scientists in Korea have developed a cell-based test that can be used to detect antibodies against agrin, a protein involved in nerve-muscle communication that is sometimes targeted by harmful autoantibodies in people with myasthenia gravis (MG). The researchers said they validated the test “and have demonstrated that this [cell-based…