Phase 3 Myasthenia Gravis Trial, Recruiting NCT05265273 Sponsor: Janssen Research & Development, LLC Condition: Myasthenia Gravis
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Phase 3 Myasthenia Gravis Trial, Recruiting

NCT05265273
Recruiting Phase 3

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

  • You are between 8 and under 18 years old (for US locations only)
  • You have been diagnosed with myasthenia gravis (MG) that affects muscles throughout your body, rated at a moderate to severe level based on a standard medical classification system
  • A blood test has shown you have specific antibodies (anti-AChR or anti-MuSK) linked to myasthenia gravis
  • You are using herbal remedies, traditional medicines, nutritional supplements, or prescription medical marijuana, as long as the trial doctor approves and you keep the dose the same throughout the study
  • Your veins are suitable for receiving the study drug through an IV drip and for regular blood draws
  • Your body weight and body mass index (BMI) fall within the normal range for your age and sex; if you are above or below that range, you may still be able to join after a medical check
  • If you are a female who could become pregnant, you must have a negative pregnancy test both at your first screening visit and on the first day of treatment

Who may not be able to join:

  • You have a serious or poorly controlled condition affecting your liver, gut, kidneys, lungs, heart, mental health, nervous system, muscles or joints, diabetes, or blood clotting problems (such as a history of blood clots, certain inherited clotting disorders, or an irregular heartbeat) — or your screening blood tests show significant abnormalities
  • You have a confirmed or suspected immune system deficiency unrelated to your myasthenia gravis treatment, or there is a family history of an inherited immune condition (unless it has been confirmed you do not have it)
  • You have had your thymus gland removed within the past 12 months, or you are planning to have it removed during the main treatment period of the study
  • You have previously had a severe allergic reaction (such as anaphylaxis) to a therapeutic protein-based medicine, such as a monoclonal antibody treatment
  • You have had a heart attack, unstable heart disease, or a stroke within the 12 weeks before screening

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 28 July 2026
Phase 3: approximately ~65% of drugs entering this phase reach regulatory approval, based on published industry-wide historical data. This is not specific to this trial.
Phase success rates shown are historical industry-wide averages based on published data. They are not a prediction for this specific trial or your individual situation.

Contact this trial

Principal Investigator: Janssen Research & Development, LLC Clinical Trial, Janssen Research & Development, LLC

Phone: 844-434-4210

Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.

GP referral letter

Print a one-page summary to share with your doctor.

Trial details

Status
Recruiting
Phase
Phase 3
Registry
ClinicalTrials.gov
Start date
20 July 2022
Est. completion
26 June 2026

Where this trial is recruiting

🇯🇵 Japan 🇳🇱 Netherlands 🇵🇱 Poland 🇺🇸 United States

Primary endpoints

Change from Baseline in Total Serum Immunoglobulin-G (IgG) Levels; Number of Participants with Infectious Adverse Events (AEs); Number of Participants with Serious AEs (SAEs); Number of Participants with Adverse Events of Special Interests (AESIs); Number of Participants with Abnormalities in Clinical Laboratory Tests; Number of Participants with Abnormalities in Vital Signs; Number of Participants with Abnormalities in Physical Examination; Serum Concentration of Nipocalimab over Time; Clearance (CL) of Nipocalimab; Volume of Distribution (V) of Nipocalimab; Half-life (t1/2) of Nipocalimab; S...

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov