About this trial
The goal of this Phase I clinical trial is to evaluate the safety and tolerability of autologous CD19-targeted chimeric antigen receptor T-cell (CAR-T) therapy in adults with refractory systemic lupus erythematosus who have demonstrated inadequate response to standard-of-care immunosuppressive treatments.
The primary questions this study aims to address are:
What is the incidence, nature, and severity of treatment-emergent adverse events following CD19 CAR-T cell infusion? Is administration of CD19 CAR-T cell therapy feasible and tolerable in patients with refractory systemic lupus erythematosus? This study is conducted as a single-arm trial without a comparison group.
Participants will:
Undergo leukapheresis for collection of autologous peripheral blood mononuclear cells Receive a protocol-defined lymphodepleting chemotherapy regimen prior to CAR-T cell infusion Receive a single intravenous infusion of approximately 1.0 × 10⁶ CD19 CAR-T cells per kilogram of body weight Undergo scheduled clinical evaluations, laboratory testing, and longitudinal follow-up to assess safety, tolerability, and clinical parameters
Eligibility criteria
Qualifiers
Age 16 to 55 years, male or female
Diagnosis of systemic lupus erythematosus (SLE) according to the 2019 EULAR/ACR classification criteria with a total score ≥ 10
SLEDAI-2K score ≥ 8 at screening (with at least 4 points derived from laboratory parameters; excluding points attributable to central nervous system involvement)
Positive antinuclear antibody (ANA ≥ 1:80) OR positive anti-dsDNA OR positive anti-Sm antibody at screening or documented in medical history
Disqualifiers
History of significant neurologic disorders (e.g., traumatic brain injury, seizure disorder, hemorrhagic conditions, impaired consciousness)
Significant cardiovascular disease within 3 months prior to screening (e.g., uncontrolled hypertension, NYHA Class III-IV heart failure, severe arrhythmia, unstable angina, myocardial infarction)
Prior kidney transplantation
Severe asthma requiring long-term treatment or respiratory failure
Trial design
Treatments tested in this trial
- Autologous CD19-Targeted CAR-T Cells