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Evaluation of Pharmacokinetics, Pharmacodynamics, Efficacy, Safety, and Immunogenicity of Ravulizumab Administered Intravenously in Pediatric Participants With Generalized Myasthenia Gravis (gMG)

Launched by ALEXION PHARMACEUTICALS, INC. · Dec 1, 2022

Trial Information

Current as of August 25, 2025

Recruiting

Keywords

Generalized Myasthenia Gravis G Mg

ClinConnect Summary

This clinical trial is studying a treatment called ravulizumab for children with a condition called Generalized Myasthenia Gravis (gMG). gMG is a disease that affects communication between nerves and muscles, leading to weakness in different parts of the body. The trial aims to understand how the medication works in children, how it affects their bodies, and how safe it is. Researchers are looking for participants who have been diagnosed with gMG and have specific test results showing they have certain antibodies. Eligible participants should be between certain ages, have a stable treatment plan, and be vaccinated against meningococcal infection.

If your child joins the trial, they will receive intravenous (IV) infusions of ravulizumab and will be closely monitored by the medical team throughout the study. This means that healthcare professionals will check on their health and how well the treatment is working. It’s important to know that participants should not have certain medical conditions, such as untreated thymic tumors or a history of specific infections. This study is currently recruiting participants, and it could provide valuable information about treating gMG in children.

Gender

ALL

Eligibility criteria

  • Inclusion Criteria:
  • Diagnosis of gMG confirmed by a positive serologic test for anti-AChR antibodies (Abs) obtained at Screening and/or during Screening Period
  • Myasthenia Gravis Foundation of America (MGFA) Clinical Classification of Class II to Class IV at Screening
  • Participants receiving treatment must be on a stable dosing regimen of adequate duration prior to Screening and during the Screening Period.
  • Eculizumab-experienced participants must have been enrolled and treated with eculizumab in Study ECU-MG-303 for at least 6 months (180 days) and must have been on a stable dose for ≥ 2 months (60 days) prior to Screening.
  • All participants must be vaccinated against meningococcal infection
  • Exclusion Criteria:
  • Medical Conditions
  • Any untreated thymic malignancy, carcinoma, or thymoma.
  • Participants with a history of treated benign thymoma
  • History of thymectomy, thymomectomy, or any thymic surgery within the 12 months prior to Screening
  • History of N meningitidis infection
  • Known to be human immunodeficiency virus (HIV) positive
  • History of unexplained infections
  • Known or suspected history of drug or alcohol abuse or dependence within 1 year prior to the start of the Screening Period

About Alexion Pharmaceuticals, Inc.

Alexion Pharmaceuticals, Inc. is a global biopharmaceutical company dedicated to the discovery, development, and commercialization of innovative therapies for patients with rare and complex diseases. With a strong focus on addressing unmet medical needs, Alexion leverages advanced science and technology to create transformative treatments that improve the quality of life for patients suffering from conditions such as complement-mediated disorders, neurology, hematology, and metabolic diseases. Committed to patient-centric approaches, Alexion collaborates with healthcare professionals, patients, and advocacy groups to drive clinical research and foster advancements in rare disease treatment.

Locations

Chicago, Illinois, United States

Madrid, , Spain

Malaga, , Spain

Milano, , Italy

San Francisco, California, United States

Philadelphia, Pennsylvania, United States

Paris Cedex 12, , France

Torino, , Italy

Marseille, , France

Boston, Massachusetts, United States

Akron, Ohio, United States

Leiden, , Netherlands

Belgrade, , Serbia

Bern, , Switzerland

Paris, , France

Roma, , Italy

Los Angeles, California, United States

Philadelphia, Pennsylvania, United States

Madrid, , Spain

Tokyo, , Japan

Chapel Hill, North Carolina, United States

Itabashi Ku, , Japan

Paris, , France

Malaga, , Spain

Tokyo, , Japan

Milano, , Italy

Belgrade, , Serbia

Denton, Texas, United States

Patients applied

0 patients applied

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported

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