News

New enzyme may disarm antibodies driving myasthenia gravis: Study

An enzyme, called S-1117, can disarm self-reactive immunoglobulin G (IgG) antibodies targeting the acetylcholine receptor (AChR) that drive most cases of myasthenia gravis (MG), according to a study that used blood samples from patients. “This study presents S-1117, an IgG-specific protease [a protein-degrading enzyme], as a promising therapeutic approach…

FDA puts experimental gMG therapy cladribine on fast track

Note: This story was updated Nov. 26, 2025, to correct that the cladribine formulation being tested as a potential gMG treatment differs from the one used in Mavenclad, an approved therapy for multiple sclerosis. The U.S. Food and Drug Administration (FDA) has granted fast track designation to cladribine, an…

Patient registry launches to track myasthenia gravis care

The first patient has been enrolled in a myasthenia gravis (MG) registry to collect clinical information from real-world settings across the U.S., with the aim of better understanding the disease and ultimately improving care. Thermo Fisher Scientific’s newly launched registry is recruiting people with the ocular and generalized…

MGFA Session 2025: Telitacicept eases gMG symptoms long term

Nearly one year of treatment with Remegen’s telitacicept in a clinical trial in China led to substantial and sustained reductions in symptom severity among adults with generalized myasthenia gravis (gMG). That’s according to new results from the Phase 3 trial, which were shared during the Myasthenia Gravis…

MGFA Session 2025: Gefurulimab eases symptoms in gMG trial

Weekly treatment with gefurulimab —an investigational C5 inhibitor from Alexion, Astrazeneca Rare Disease, that’s designed to be self-administered — led to early and sustained reductions in disease severity for adults with generalized myasthenia gravis (gMG), according to top-line data from a Phase 3 clinical trial. The findings…