Compares nipocalimab with efgartigimod for generalized myasthenia gravis
Tests nipocalimab against efgartigimod in adults with generalized myasthenia gravis, a muscle weakness disease.
Plain-language title generated from the registry record
Registry title: Comparative Efficacy of Nipocalimab and Efgartigimod in Participants With Generalized Myasthenia Gravis
Key facts
- Where
- Vienna, AustriaSee the site
- Phase
- Phase 3
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults with generalized myasthenia gravis who test positive for acetylcholine receptor (AChR) antibodies. It compares nipocalimab with efgartigimod.
- Age
- 18 to 74 years
- Sex
- All sexes can join.
- Disease stage
- Generalized myasthenia gravis, MGFA class II a/b, III a/b or IV a/b. MG-ADL score of 5 or more, with less than 50% of symptoms from the eyes.
- Earlier treatment
- Arms 1 and 2: poor response to current stable treatment, or stopped corticosteroids and/or immune-suppressing drugs at least 4 weeks before baseline because of side effects or no benefit. Arm 3: at least 1 cycle of efgartigimod. Arms 1 and 2 cannot have had an FcRn-targeting therapy before.
- Biomarker or test result
- Positive for acetylcholine receptor (AChR) antibodies.
Main reasons for not taking part
- Any confirmed or suspected immune deficiency not caused by treating myasthenia gravis, or a family history of inherited immune deficiency unless confirmed absent in the person
- Thymus removal (thymectomy) within 1 year before baseline, or planned during the study
- Current cancer, or cancer within the last 3 years
- Arms 1 and 2: earlier treatment with an FcRn-targeting therapy
- Arm 3: currently taking IgG monoclonal antibody drugs or Fc-conjugated drugs, except efgartigimod
Read by machine on 9 November 2026.
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 74 years old?
Source: NCT07217587, who can take part
Where in Austria
- Medical University of ViennaVienna, AustriaNot yet recruiting
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- Janssen Research & Development, LLC
- Trial code
- NCT07217587EU 2025-521130-28-00
- Record updated
- 3 November 2026
- Original description
The purpose of this study is to assess how well nipocalimab works when compared to efgartigimod in participants with generalized myasthenia gravis (a condition in which body's immune system mistakenly attacks and damages the connection between nerves and muscles causing muscle weakness).Read full original descriptionShow less
Efficacy and Safety of Nipocalimab vs Efgartigimod for Patients With Generalized Myasthenia Gravis in a Randomized, Open-label, Phase 3b, Interventional Trial Including Within Class Switching From Efgartigimod to Nipocalimab
The purpose of this study is to assess how well nipocalimab works when compared to efgartigimod in participants with generalized myasthenia gravis (a condition in which body's immune system mistakenly attacks and damages the connection between nerves and muscles causing muscle weakness).
Inclusion: For all arms:; Medically stable on the basis of physical examination, medical history, vital signs, clinical laboratory tests, and 12-lead electrocardiogram (ECG) performed at screening; Diagnosis of myasthenia gravis (MG) with generalized muscle weakness meeting the clinical criteria for generalized MG (gMG) as defined by the Myasthenia gravis foundation of America (MGFA) clinical classification class II a/b, III a/b, or IV a/b at screening and positive for acetylcholine receptor (AChR) antibodies; Myasthenia Gravis-Activities of Daily Living (MG-ADL) score of greater than or equal to (>=) 5 with less than (<) 50% of symptoms coming from ocular MG-ADL sub-scores at study screening and baseline (Day 1) visits; Criteria specific to Arms 1 and 2 only:; Has suboptimal response to current stable therapy for gMG according to the investigator or has discontinued corticosteroids and/or immunosuppressants/immunomodulators including eculizumab or other novel approved immune agents at least 4 weeks prior to baseline due to intolerance or lack of efficacy; Criteria specific to Arm 3:; Treatment with efgartigimod IV or subcutaneous (SC) for >=1 cycle, and the final cycle is consistent with product information.
Exclusion: Had a thymectomy within 1 year prior to baseline, or thymectomy is planned during the study; Has received treatment for MG with an FcRn-targeting therapy; Criteria specific to Arm 3 only:; Is currently taking IgG monoclonal antibody therapeutics, or Fc-conjugated therapeutic agents, including factor or enzyme replacement, with the exception of efgartigimod; Any confirmed or suspected clinical immunodeficiency syndrome not related to treatment of his/her gMG, or has a family history of congenital or hereditary immunodeficiency unless confirmed absent in the participant; Currently has a malignancy or has a history of malignancy within 3 years before baseline; Criteria specific to Arms 1 and 2 only:.