Not Yet RecruitingPhase 1/2

Ripertamab for the Treatment of Myasthenia Gravis

20 participantsStarted 2026-02

Plain-language summary

The goal of this clinical trial is to learn if ripertamab works to treat myasthenia gravis. It will also learn about the safety of ripertamab. The main questions it aims to answer are:Will ripertamab improve the symptoms of participants?What medical problems do participants have when using ripertamab?Researchers will compare ripertamab to a placebo (a look-alike substance that contains no drug) to see if ripertamab works to treat chronic inflammatory demyelinating polyneuropathy.Participants will:A single intravenous infusion of ripertamab.Visit the clinic for checkups and tests during W1, W2, W4, W8, W12. Keep a diary of their symptoms and the number of times they undergo rescue therapy.

Who can participate

Age range

18 Years – 75 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: (1) Aged ≥ 18 years and ≤ 75 years at screening.(2) Confirmed diagnosis of generalized myasthenia gravis (gMG).(3) Positive for anti-acetylcholine receptor (anti-AChR), anti-muscle-specific kinase (anti-MuSK), and/or anti-low-density lipoprotein receptor-related protein 4 (anti-LRP4) antibodies.(4) A score of ≥ 6 on the Myasthenia Gravis Activities of Daily Living (MG-ADL) Scale, with the ocular subscore accounting for less than 50% of the total score.(5) Classified as Myasthenia Gravis Foundation of America (MGFA) Clinical Classification Types Ⅱ, Ⅲ, or Ⅳ.(6) Voluntary signing of the informed consent form by the patient and/or their legal representative. Exclusion Criteria: (1) Any condition that the investigator deems likely to interfere with the evaluation of the study drug, assessment of patient safety, or interpretation of study results.(2) A history of any uncontrolled active infection or severe infection within 8 weeks prior to screening.(3) Receipt of rituximab or any B-cell depleting agent within 6 months prior to screening; note: Subjects with CD19+ or CD20+ B-cell counts above the lower limit of normal are eligible for enrollment.(4) Administration of tocilizumab, eculizumab, mitoxantrone, cyclophosphamide, or other alkylating agents within 3 months prior to the first dose.(5) Administration of immunosuppressants other than glucocorticoids within 1 month prior to the first dose, including but not limited to azathioprine, mycophenolate mofetil,…

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

The proportion of patients who achieved a reduction of at least 2 points in the MG-ADL score and did not receive rescue therapy at week 13.

Timeframe: week 13

Trial details

NCT IDNCT07372807

SponsorZhongming Qiu

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-12

View on ClinicalTrials.gov More Myasthenia Gravis (MG) trials