RecruitingEarly Phase 1NCT07322718

Safety and Efficacy Study of RXIM002 in Severe, Relapsed or Refractory Autoimmune Diseases

A Clinical Study to Evaluate the Safety, Tolerability and Preliminary Efficacy of the CD19-Targeting Circular RNA Product RXIM002 in Patients With Relapsed or Refractory B Cell-Mediated Autoimmune Diseases


Sponsor

Ruijin Hospital

Enrollment

27 participants

Start Date

Dec 24, 2025

Study Type

INTERVENTIONAL

Conditions

Summary

This Phase 1, open-label study evaluates the safety, tolerability, and preliminary efficacy of RXIM002, a CD19-targeting circular RNA-mediated in-vivo CAR T-cell therapy, in adults with severe, relapsed, or refractory B cell-mediated autoimmune diseases.


Eligibility

Min Age: 18 YearsMax Age: 65 Years

Inclusion Criteria32

  • Subjects voluntary agreement to provide written informed consent.
  • Aged 18 to 65 years, either sex.
  • Adequate organ function meeting screening criteria.
  • Positive test for cluster of differentiation antigen 19 (CD19).
  • Systemic Lupus Erythematosus (SLE) and Lupus Nephritis (LN):
  • Have been diagnosed with SLE or LN before screening.
  • Presence of anti-dsDNA, anti-histone, anti-chromatin, anti-Ro (anti-SS-A), anti-La (anti-SS-B), antinuclear antibody (ANA), or anti-Sm antibodies at screening.
  • Active disease at screening.
  • Fulfill relapsed/refractory SLE or LN conditions
  • Lupus Nephritis (LN) :
  • Kidney biopsy result indicating LN
  • Evidence of LN disease activity
  • Systemic Sclerosis (SSc):
  • Have been diagnosed with SSc before screening.
  • Antinuclear Antibody (ANA) positive at screening or prior to screening. AND, evidence of SSc disease activity.
  • Fulfill relapsed/refractory SSc conditions.
  • Immune Thrombocytopenia (ITP):
  • Have been diagnosed with refractory ITP before screening.
  • Platelet count <50×10⁹/L at screening.
  • Idiopathic Inflammatory Myopathy (IIM):
  • Have been diagnosed with IIM before screening.
  • Presence of at least 1 myositis specific (MSA), associated antibody (MAA), or ANA at screening or prior to screening.
  • Evidence of IIM disease activity.
  • Fulfill relapsed/refractory IIM conditions.
  • Membranous Nephropathy (MN):
  • Have been diagnosed with MN before screening.
  • Active MN patients meeting screening criteria.
  • Fulfill relapsed/refractory MN conditions.
  • Autoimmune Hemolytic Anemia (AIHA):
  • Have been diagnosed with AIHA before screening.
  • Active AIHA patients meeting screening criteria.
  • Fulfill relapsed/refractory AIHA conditions.

Exclusion Criteria5

  • Active infections such as hepatitis and tuberculosis.
  • Other autoimmune diseases.
  • Serious underlying diseases such as active malignancies, uncontrolled diabetes.
  • Female subjects who were pregnant, breastfeeding.
  • Any uncontrolled psychiatric disorders (e.g., schizophrenia, bipolar disorder, eating disorders, major depression or anxiety disorder), as declared by the participant or reported in the medical records.

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Interventions

BIOLOGICALRXIM002 product

Prior to infusion of the RXIM002 product, subjects will receive pre-medication if needed


Locations(1)

Ruijin Hospital

Shanghai, Huangpu District, China

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NCT07322718