An Open-label Extension Study to Evaluate Subcutaneous Zilucoplan in Pediatric Participants With Generalized Myasthenia Gravis

Inclusion Criteria: United States of America (USA) specific inclusion criterion: \- Participant must be ≥ 12 years of age at the time of signing the Informed Consent/Assent according to local regulation. Rest of World (ROW) specific inclusion criterion: \- Participant must be ≥ 2 years of age at the time of signing the Informed Consent/Assent according to local regulation. Global specific inclusion criteria: * Participant has completed the MG0014 according to the protocol, and further treatment with zilucoplan is in the interest of the participant in the investigator´s opinion * Participant agrees to receive booster vaccinations against meningococcal infections during the study, if clinically indicated according to the local standard of care Exclusion Criteria: * Study participant met any mandatory investigational medicinal product (IMP) withdrawal or mandatory permanent discontinuation criteria in MG0014 or permanently discontinued IMP * Participant has known positive serology for muscle-specific kinase * Participant has known hypersensitivity to any components of the IMP * Participant has a prior history of meningococcal disease