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Study identifier: NCT06298565 Synced from ClinicalTrials.gov · August 11, 2026
● Study status: Recruiting

A Non-interventional, Post-authorisation Safety Study of Patients Treated With Efgartigimod Alfa

Condition: Myasthenia Gravis  ·  Sponsor: argenx

PhaseN/A
Planned participants680
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNoCheck eligibility criteria ↓
Where35 locations · 6 countries

Interested? Contact the study team ↓

For sponsors, CROs & site teams
Professional view of this study — listed sites, countries and recruiting context from the public registry. Everything below is written for patients and caregivers.See where this study is running →

About this study

This is a non-interventional, prospective, post authorization safety study. Patients with gMG who are expected to start treatment with efgartigimod at enrolment or are within their first cycle of efgartigimod at enrolment will be eligible to enroll into the efgartigimod cohort. Patients with gMG who have not been exposed to efgartigimod and for whom it is not planned to start treatment with efgartigimod at enrolment will be eligible to enroll into the non-efgartigimod cohort.

This description comes directly from the study's public registry record.

Talk to the study team

Sabine Coppieters, MD  ·  857-350-4834  ·  Clinicaltrials@argenx.com

There is no obligation to join — the study team can answer your questions about taking part.

Always discuss trial participation with your own doctor first.

Full eligibility criteria (exactly as the study team wrote them)

Inclusion Criteria: * Patients diagnosed with gMG who are expected to start commercial efgartigimod at enrolment or who are within their first cycle of efgartigimod at enrolment or Patients diagnosed with gMG who have not been exposed to efgartigimod and for whom it is not planned to start treatment with efgartigimod at enrolment * Have provided appropriate written informed consent Exclusion Criteria: * None

Reproduced word-for-word from the public registry record — the study team can answer questions about it.

Locations (35)

UCSF Medical Center - Helen Diller Family Comprehensive Cancer Center - Brain Tumor Center,San Francisco, California, United StatesRecruiting
SFM Clinical Research, LLCBoca Raton, Florida, United StatesRecruiting
University of Florida College of Medicine JacksonvilleJacksonville Beach, Florida, United StatesRecruiting
Medsol Clinical Research Center IncPort Charlotte, Florida, United StatesRecruiting
BayCare Health System, Inc. St Anthony's HospitalSt. Petersburg, Florida, United StatesRecruiting
Prairie Education and Research Cooperative and HSHS Medical GroupO'Fallon, Illinois, United StatesRecruiting
University of IowaIowa City, Iowa, United StatesRecruiting
University of Kansas Medical CenterKansas City, Kansas, United StatesRecruiting
Norton Neuroscience InstituteLouisville, Kentucky, United StatesRecruiting
Massachusetts General HospitalBoston, Massachusetts, United StatesRecruiting
Beth Israel Deaconess Medical CenterBoston, Massachusetts, United StatesRecruiting
Henry Ford Health SystemDetroit, Michigan, United StatesRecruiting

+ 23 more locations — full list on the registry record.

More studies in these areas

This study lists sites in the areas below. Each link shows other recruiting studies near that city, from the public registry record.

San FranciscoBoca RatonJacksonville BeachPort Charlotte

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