What Is Generalized Myasthenia Gravis (gMG)?

Generalized myasthenia gravis (gMG) is a rare autoimmune disease. Autoimmune diseases occur when the body mistakenly attacks healthy cells, disrupting certain normal bodily functions. In myasthenia gravis (MG), the immune system damages or destroys receptors that help the body control its muscles, causing muscle weakness and fatigue. There are two types of myasthenia gravis: generalized and ocular, with generalized being the most common.1 Ocular myasthenia gravis is not being evaluated in the ExpanD Study.

There are several different treatments available for individuals with gMG, but many patients continue to experience symptoms despite these treatments. There is an unmet need for more-effective gMG treatments, and there is no known cure.

By taking part in a study that is evaluating a potential new treatment for gMG, participants in the ExpanD Study might make a difference in the lives of others in the gMG community. If you’re interested in this important research, we invite you to click the button below and answer some questions to see if you may qualify for participation.


  1. my.clevelandclinic.org/health/diseases/17252-myasthenia-gravis-mg