RecruitingEarly Phase 1NCT06747156

A Study of mRNA Encoding CD19/CD3 T Cell Engager (ABO2203) in Patients With Refractory Autoimmune Diseases

A Clinical Study to Investigate Safety, Tolerability, and Preliminary Efficacy of mRNA Encoding CD19/CD3 T Cell Engager (ABO2203) in Patients With Refractory Autoimmune Diseases


Sponsor

Ruijin Hospital

Enrollment

66 participants

Start Date

Dec 23, 2024

Study Type

INTERVENTIONAL

Conditions

Summary

The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, as well as preliminary efficacy of mRNA encoding CD19/CD3 T cell engager (ABO2203) in patients with refractory autoimmune diseases who received inadequate response or relapsed from standard of care (SoC). The trial included dose escalation and dose expansion parts.


Eligibility

Min Age: 18 Years

Inclusion Criteria5

  • ≥18 years of age at time of informed consent.
  • Diagnosis of autoimmune diseases according to the corresponding disease classification criteria.
  • Inadequate response to SoCs or relapsed after the treatment.
  • Patients were on a stable dose of SoCs for at least 4 weeks prior to enrollment.
  • Sufficient organ function.

Exclusion Criteria10

  • Active infection, including tuberculosis, active or relapsed peptic ulcer, etc.
  • Severe hypogammaglobulinemia or IgA deficiency.
  • Active hepatitis or with a history of severe liver disease.
  • History of rapid allergic reactions, eczema or asthma that cannot be controlled by topical corticosteroids.
  • Severe cardiovascular diseases.
  • History of cancer within past 5 years.
  • Have other serious medical conditions.
  • Received any of B cell targeted therapies and biologic therapies within the defined time window.
  • History of severe allergies or known allergies to any active or inactive component of the study drug(s).
  • A history of organ transplantation, bone marrow transplantation or hematopoietic stem cell transplantation.

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Interventions

DRUGABO2203 Injection

Name of Active Ingredient: mRNA encoding CD19/CD3 T cell engager


Locations(3)

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Wuhan, Hubei, China

Nanjing Drum Tower Hospital

Nanjing, Jiangsu, China

Ruijin Hospital

Shanghai, China

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NCT06747156


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