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

mRNA therapy that makes a CD19/CD3 T-cell engager (ABO2203) for relapsed or refractory B-cell non-Hodgkin lymphoma.

Official title: A Clinical Study to Investigate Safety, Tolerability, and Preliminary Efficacy of mRNA Encoding CD19/CD3 T Cell Engager (ABO2203) in Adult Patients With Relapsed or Refractory B-NHL

Run by Ruijin Hospital · NCT07072169 · Data updated 2026-11-12

This will try an mRNA drug (ABO2203) that makes immune-engaging CD19/CD3 proteins to see if it is safe and helps adults with relapsed or refractory CD19-positive B-cell non-Hodgkin lymphoma.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment56 (estimated)
SponsorRuijin Hospital
Academic / other
Locations1 site (Shanghai, Shanghai Municipality)
StatusRecruiting
StartedMay 26, 2025
Main results expectedJune 2026
Study endsMay 2027
Registry record updatedJuly 18, 2025
Trial IDNCT07072169 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–75 with histologically confirmed relapsed or refractory CD19-positive B-cell non-Hodgkin lymphoma, at least one measurable lesion by Lugano 2014, ECOG 0–2, and adequate organ function are the intended participants.

Probably not a fit

Patients with central nervous system lymphoma, prior allogeneic stem cell or organ transplants, active autoimmune disease, significant pulmonary disease, recent other active malignancy, uncontrolled comorbidities, or CD19-negative tumors are excluded or unlikely to benefit.

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

What this trial studies

This phase 1, first-in-human program delivers mRNA encoding a CD19/CD3 T-cell engager (ABO2203) by injection to adults with relapsed or refractory CD19-positive B-cell non-Hodgkin lymphoma. The study includes a dose-escalation portion to identify a tolerable dose and a dose-expansion portion to gather additional safety and activity data. Key measurements include safety and tolerability, pharmacokinetics and pharmacodynamics, and preliminary anti-tumor activity using Lugano 2014 response criteria. The trial is conducted at Ruijin Hospital in Shanghai.

Why it matters

Potential benefit: If successful, ABO2203 could provide a new non-cellular immunotherapy that recruits patients' own T cells to target CD19-positive lymphoma, potentially producing remissions in people who have relapsed after prior treatments.

How similar studies have gone: CD19/CD3 bispecific T-cell engagers have shown clinical activity in B-cell malignancies, but delivering such engagers via mRNA (as ABO2203) is a novel approach with limited prior clinical data.

Who can join: the full rules

Show full inclusion / exclusion criteria
Key-Inclusion Criteria:

* ≥18 years and ≤75 years of age at time of informed consent
* Participants with histologically and/or cytologically confirmed relapsed or refractory CD19-positive B-cell non-Hodgkin lymphoma
* With at least one of evaluable/measurable target lesions per Lugano 2014 criteria
* Eastern Cooperative Oncology Group (ECOG) performance status score of 0-2
* Life expectancy of ≥3 months
* Sufficient organ function

Key-Exclusion Criteria:

* Central nervous system lymphoma
* Previously undergone allogeneic hematopoietic stem cell transplantation or other organ transplants
* Any other prior malignancy active within the previous 5 years, except for skin basal cell cancer that has been cured, or carcinoma in situ of the cervix
* History of active autoimmune diseases
* History of interstitial lung disease, tuberculosis, or other diseases that affect pulmonary function in the past or currently
* Uncontrolled disease, including but not limited to uncontrolled diabetes, hypertension, active infections, active peptic ulcers, thromboembolic disease requiring anticoagulation, etc.
* Severe cardiovascular diseases
* History of severe allergies to protein-based drugs or any component of the study drug

Where it's running

  • Ruijin Hospital
    Shanghai, Shanghai Municipality, China
    Recruiting

Study contacts

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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.