Phase 3 study for people with Myasthenia Gravis
Recruiting Phase 3
This trial at a glance
Past estimated completion. The registry still lists this trial as open, and the date it gave for finishing has been and gone. Confirm with the official record before you act on it.
Where this trial is running
| Site | City | State or country | Status at this site |
|---|---|---|---|
| Melbourne Neurology Group | North Melbourne | VIC | Completed |
| Gold Coast University Hospital | Southport | QLD | Recruiting |
voxsanity.com.au · trial sites from public registries · registry record synced 11 October 2026 · not medical advice
Who can join
The official eligibility criteria
Registry text, reproduced exactly. These are the words the trial's sponsor published on ClinicalTrials.gov. They have not been edited, shortened or rewritten, and they are written for researchers rather than for patients.
Inclusion Criteria:
* Diagnosis of myasthenia gravis (MG) with generalized muscle weakness meeting the clinical criteria for generalized myasthenia gravis (gMG) as defined by the Myasthenia Gravis Foundation of America (MGFA) Clinical Classification Class II a/b, III a/b, or IVa/b at screening
* Myasthenia Gravis - Activities of Daily Living (MG-ADL) score of greater than or equal to (\>=) 6 at screening and baseline
* Has sufficient venous access to allow drug administration by infusion and blood sampling as per the protocol
* A woman of childbearing potential must have a negative highly sensitive serum (beta-human chorionic gonadotropin \[beta-hCG\]) at screening and a negative urine pregnancy test at Day 1 prior to administration of study intervention
* A male participant must agree not to donate sperm for the purpose of reproduction during the study and for a minimum 90 days after receiving the last administration of study intervention
* For the SC Substudy (Cohort 1 and Cohort 2): Has reasonable abdominal skin area for SC administration
* For the SC Substudy (Cohort 1 and Cohort 2): Participants must be willing to comply with maintaining their stable dose of corticosteroids and/or immunosuppressants for the initial 8 weeks of the SC substudy, that is, through the SC Week 8 visit
Exclusion Criteria:
* Has 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
* Has MGFA Class I disease or presence of MG crisis (MGFA Class V) at screening, history of MG crisis within 1 month of screening, or fixed weakness (and/or 'burnt out' MG)
* Has had a thymectomy within 12 months prior to screening, or thymectomy is planned during the study
* Has known allergies, hypersensitivity, or intolerance to nipocalimab or its excipients
* Has experienced myocardial infarction, unstable ischemic heart disease, or stroke within 12 weeks of screening
* For the SC Substudy (Cohort 1): Participants who have undergone a recent tapering of their concomitant MG medication in the OLE
* For the SC Substudy (Cohort 1): Participants deteriorating during the OLE in the month prior to SC Dose 1 of the SC substudy such that they meet the criteria for clinical deterioration
* For the SC Substudy (Cohort 2): History of an unprovoked pulmonary embolism within 1 year prior to screening or history of recurrent deep vein thrombosis (DVT)
Dates on the record
Results, publications and the official record
- Results posted on the official record
- No publications are listed on the official record yet.
- Official record and contacts on ClinicalTrials.gov – contact details for each site are kept there, and are not copied onto this page.
Sources and dates
- ClinicalTrials.gov – the record this page reformats
- ClinicalTrials.gov processing date: 27 July 2026.
- This page last checked by Voxsanity: 11 October 2026.
Voxsanity reformats data from public registries into this layout. It does not edit, interpret or add to what the registry published.
Not medical advice.
Individual trial records are refreshed on a rolling basis rather than all at once, so a record may be up to several weeks old. Each trial page and trial card shows the date its own record was last synced. Where a record has lagged, its status, sites and enrolment can differ from the current registry state in either direction, so check the registry link on the trial page before acting on them.
Letter for your doctor
A one-page summary of this trial to print or email to your GP. It carries the registry's own record of the trial and its eligibility criteria, and nothing Voxsanity has written about whether it suits you.