**Study Details:** This study checks how well a new medicine, IMVT-1402, works and how safe it is for adults with a condition called generalized myasthenia gravis (gMG). gMG is a disease that makes muscles weak and tired easily. The study is for people with mild to severe cases of gMG. **Eligibility:** - You need to understand what the study is about and be able to agree to take part. - You should have a certain level of muscle weakness as defined by the Myasthenia Gravis Foundation of America. - You cannot join if you've had a myasthenic crisis (a severe worsening of muscle weakness) in the last 12 weeks. **Key Points:** - **Study Duration:** Check how long the study lasts and how many visits are needed. - **Compensation:** Find out if there is any payment or support for taking part. - **Risks and Benefits:** Consider the possible risks and benefits of joining the study. This study helps researchers learn more about treating gMG. If you think you might qualify, it could be a chance to try a new treatment.