Treatment for recurrent CD19 positive adult B-cell cancers

A Single-arm, Open-label, Phase I/II Clinical Study of GT719 Injection for Recurrent/Refractory CD19 Positive Adult B-cell Malignancies

PHASE1; PHASE2 · Grit Biotechnology · NCT06948981

This study is testing a new injection to see if it can help adults with certain types of B-cell cancers that have come back or didn't respond to other treatments.

Quick facts

PhasePHASE1; PHASE2
Study typeInterventional
Enrollment46 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorGrit Biotechnology (industry)
Locations1 site (Tianjin, Tianjin Municipality)
Trial IDNCT06948981 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the safety and efficacy of GT719 Injection in patients with relapsed or refractory CD19 positive adult B-cell malignancies, specifically B-cell non-Hodgkin lymphoma and B-acute lymphoblastic leukemia. It is a single-arm, open-label study that includes both dose escalation and expansion phases, aiming to enroll a total of 34 subjects. Participants will be monitored for cellular pharmacokinetics and overall treatment response.

Who should consider this trial

Good fit: Ideal candidates are adults with relapsed or refractory CD19 positive B-cell non-Hodgkin lymphoma or B-acute lymphoblastic leukemia.

Not a fit: Patients with primary immunodeficiency or recent history of significant thromboembolic events may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with difficult-to-treat B-cell malignancies.

How similar studies have performed: While this approach is being explored, similar studies targeting CD19 positive malignancies have shown promise, indicating potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Voluntarily enrolled in the study, signed an informed consent form, and willing and able to comply with the study protocol.

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2. Eastern Collaborative Oncology Group (ECOG) physical fitness status score of 0 or 1.

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3. CD19 positivity confirmed by flow cytometry and/or histopathology.

Exclusion Criteria:

1. Primary immunodeficiency.

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2. History of symptomatic deep vein thrombosis or pulmonary embolism within 6 months prior to enrollment, requiring systemic anticoagulant therapy.

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3. Any medical condition that may interfere with the evaluation of the safety or effectiveness of research and treatment;

Where this trial is running

Tianjin, Tianjin Municipality

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Hematological Malignancy

Last reviewed 2026-05-15 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.