Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 18 to 75

GT719 injection for recurrent or refractory antibody-mediated neurological autoimmune disease

Official title: A Single-arm, Open-label, Phase I Clinical Study of GT719 Injection for Recurrent/Refractory Antibody-mediated Neurological Immune Diseases

Run by Grit Biotechnology · NCT07021209 · Data updated 2026-11-12

This trial will try an experimental cell therapy called GT719 in adults with recurrent or treatment-resistant antibody-mediated neurological autoimmune diseases to see if it is safe and may help disease activity.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment30 (estimated)
SponsorGrit Biotechnology
Industry-sponsored
Drugs / interventionsprednisone
Locations1 site (Wuhan, Hubei)
StatusRecruiting
StartedJanuary 14, 2025
Main results expectedJanuary 13, 2028
Study endsJanuary 13, 2028
Registry record updatedSeptember 11, 2026
Trial IDNCT07021209 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with recurrent or refractory antibody-mediated neurological autoimmune diseases who can consent, have expected survival over 12 weeks, and have completed required washout periods from prior systemic treatments are ideal candidates.

Probably not a fit

Patients with prior organ or stem-cell transplants, recent symptomatic deep vein thrombosis or pulmonary embolism requiring anticoagulation, or those on recent high-dose systemic corticosteroids are unlikely to be eligible and may not benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an open-label, prospective Phase 1 trial with a dose-escalation stage followed by a dose-expansion stage to test GT719 cell injections in adults with recurrent or refractory antibody-mediated neurological autoimmune conditions. The primary focus is safety and tolerability, with secondary exploration of cell dynamics and early signs of clinical benefit. Participants must meet survival and washout criteria and will be closely monitored after infusion for adverse events and immune responses. The trial is conducted at a single site in Wuhan, China, under collaboration between the sponsor and a tertiary hospital.

Why it matters

Potential benefit: If successful, GT719 could offer a new cell-based treatment option that reduces relapses or symptoms in patients who have not responded to standard therapies.

How similar studies have gone: Some other cell-based and immune-targeting therapies (for example autologous HSCT or targeted B-cell therapies) have shown promise in certain autoimmune neurological disorders, but GT719 represents a novel investigational approach with limited prior human data.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Voluntarily enrolled in the study, signed an informed consent form, willing and able to comply with the study protocol.
* Expected survival period\>12 weeks.
* Any previous systemic treatment must have undergone at least 4 weeks or 5 half lives (whichever is shorter) by the time the participant plans to receive the study treatment.

Exclusion Criteria:

* History of organ transplantation, splenectomy, and allogeneic or autologous stem cell transplantation.
* History of symptomatic deep vein thrombosis or pulmonary embolism within 6 months prior to enrollment, requiring systemic anticoagulant therapy.
* Received systemic corticosteroids at a dose of ≥10 mg/day prednisone equivalent within 7 days prior to GT719 infusion, except for inhaled corticosteroids.

Where it's running

  • Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology
    Wuhan, Hubei, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.