Registry of Participants With Generalized Myasthenia Gravis Treated With Alexion C5 Inhibition Therapies (C5ITs)
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ClinicalTrials.gov Identifier: NCT04202341 |
Recruitment Status :
Recruiting
First Posted : December 17, 2019
Last Update Posted : March 3, 2023
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Condition or disease |
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Generalized Myasthenia Gravis |
Study Type : | Observational [Patient Registry] |
Estimated Enrollment : | 500 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Target Follow-Up Duration: | 5 Years |
Official Title: | Long-Term, Observational, Global Registry of Patients With Generalized Myasthenia Gravis Who Have Received Treatment With Complement C5 Inhibition Therapies (C5ITs) |
Actual Study Start Date : | December 11, 2019 |
Estimated Primary Completion Date : | November 30, 2024 |
Estimated Study Completion Date : | November 30, 2024 |

- Change in Myasthenia Gravis Activities of Daily Living (MG-ADL) Score [ Time Frame: Approximately 5 years from enrollment ]The MG-ADL is an eight-item patient-reported outcome measure assessing MG symptoms and functional activities related to activities of daily living.48 Each of the items is scored from 0 (normal) to 3 (most severe), providing a total MG-ADL score ranging from 0 to 24, where higher scores indicate greater severity of symptoms.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Participants with a diagnosis of gMG who are treated with Alexion C5IT at the time of enrollment, including patients previously treated with Soliris or Ultomiris and withdrawn from treatment.
- Capable of giving signed informed consent, which includes compliance with the protocol requirements and restrictions.
- Participants must have myasthenia gravis historical data, such as MG-ADL and MGFA class, available to be enrolled in the Registry.
Exclusion Criteria:
1. Participants currently enrolled in an Alexion-sponsored interventional clinical study for treatment of gMG cannot be enrolled in the Alexion gMG Registry while enrolled/participating in the clinical study for gMG therapy.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04202341
Contact: Alexion Pharmaceuticals Inc. | 855-752-2356 | clinicaltrials@alexion.com |
United States, Alabama | |
Clinical Trial Site | Recruiting |
Birmingham, Alabama, United States, 35294 | |
United States, Arizona | |
Clinical Trial Site | Recruiting |
Phoenix, Arizona, United States, 85001 | |
United States, California | |
Clinical Trial Site | Recruiting |
Fresno, California, United States, 93710 | |
Clinical Trial Site | Recruiting |
Rancho Mirage, California, United States, 92270 | |
Clinical Trial Site | Recruiting |
Sylmar, California, United States, 91342 | |
United States, Colorado | |
Clinical Trial Site | Recruiting |
Colorado Springs, Colorado, United States, 80907 | |
Clinical Trial Site | Recruiting |
Fort Collins, Colorado, United States, 80528 | |
United States, Connecticut | |
Clinical Trial Site | Recruiting |
New Haven, Connecticut, United States, 06520 | |
United States, Florida | |
Clinical Trial Site | Recruiting |
Clearwater, Florida, United States, 33761 | |
Clincal Trial Site | Recruiting |
Gainesville, Florida, United States, 32608 | |
Clinical Trial Site | Recruiting |
Tampa, Florida, United States, 33620 | |
United States, Georgia | |
Clinical Trial Site | Recruiting |
Augusta, Georgia, United States, 30912 | |
United States, Illinois | |
Clinical Trial Site | Recruiting |
Lake Barrington, Illinois, United States, 60010 | |
United States, Iowa | |
Clinical Trial Site | Recruiting |
Iowa City, Iowa, United States, 52242 | |
United States, Kentucky | |
Clinical Trial Site | Recruiting |
Lexington, Kentucky, United States, 40503 | |
United States, Massachusetts | |
Clinical Trial Site | Recruiting |
Boston, Massachusetts, United States, 02215 | |
United States, Michigan | |
Clinical Trial Site | Recruiting |
Lansing, Michigan, United States, 48824 | |
United States, Nevada | |
Clinical Trial Site | Recruiting |
Las Vegas, Nevada, United States, 89145 | |
United States, New York | |
Clinical Trial Site | Recruiting |
New Hyde Park, New York, United States, 11042 | |
United States, North Carolina | |
Clinical Trial Site | Recruiting |
Chapel Hill, North Carolina, United States, 27514 | |
Clinical Trial Site | Recruiting |
Durham, North Carolina, United States, 27710 | |
United States, Ohio | |
Clinical Trial Site | Recruiting |
Dayton, Ohio, United States, 45459 | |
United States, Pennsylvania | |
Clinical Trial Site | Recruiting |
Philadelphia, Pennsylvania, United States, 19104 | |
United States, Texas | |
Clinical Trial Site | Recruiting |
Dallas, Texas, United States, 75206 | |
Clinical Trial Site | Recruiting |
Houston, Texas, United States, 77001 | |
United States, Vermont | |
Clinical Trial Site | Recruiting |
Burlington, Vermont, United States, 05401 | |
United States, Wisconsin | |
Clinical Trial Site | Recruiting |
Milwaukee, Wisconsin, United States, 53215 |
Responsible Party: | Alexion |
ClinicalTrials.gov Identifier: | NCT04202341 |
Other Study ID Numbers: |
ALXN-MG-501 |
First Posted: | December 17, 2019 Key Record Dates |
Last Update Posted: | March 3, 2023 |
Last Verified: | March 2023 |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
gMG Soliris Ultomiris Alexion C5 Inhibition Therapy |
Alexion C5IT Patient Registry Generalized Myasthenia Gravis Alexion Registry |
Myasthenia Gravis Muscle Weakness Muscular Diseases Musculoskeletal Diseases Neuromuscular Manifestations Neurologic Manifestations Nervous System Diseases Pathologic Processes Paraneoplastic Syndromes, Nervous System Nervous System Neoplasms |
Neoplasms by Site Neoplasms Paraneoplastic Syndromes Autoimmune Diseases of the Nervous System Neurodegenerative Diseases Neuromuscular Junction Diseases Neuromuscular Diseases Autoimmune Diseases Immune System Diseases |