About this trial
The goal of this study is to evaluate the safety and effi cacy of CD19 CAR T cells in the treatment of Refractory Autoimmune Diseases.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Male or female patients, aged 3-65 years (including 3 and 65 years);
Systemic lupus erythematosus that meets the 2019 American Society of Rheumatology (ACR) / European Association of Rheumatology Consortium (EULAR) classification criteria (see Annex 2);
Nuclear antibody (ANA) test is clearly positive, namely ANA titer 1:80 (based on the equivalent results of Hep-2 immunofluorescence or enzyme immunoassay) and / or the test at the screening visit (based on ELISA test, 30 IU / mL).
Patients take at least 7.5 mg of prednisolone daily to maintain low disease activity or a SLEDAI 2K score (see attachment 3) of 8 or higher.
Disqualifiers
None
Trial design
Single group
Treatments tested in this trial
CD19 CAR-T cells
DrugFollowing lymphodepletion with chemotherapy (cyclophosphamide and fludarabine) patients will be treated with CD19 Chimeric Antigen Receptor (CAR) positive T cells as a single dose.
Treatment groups
Trial outcomes
Primary outcomes
Phase I:Dose-limiting toxicity (DLT)
The incidence and type of dose-limiting toxicity (DLT).
Phase I: Adverse events (AEs)
The incidence and severity of adverse events (AE).
Phase II: Objective response rate (ORR)
Proportions of subjects achieving Autoimmune Diseases response
Secondary outcomes
Phase I: Objective response rate (ORR)
Proportions of subjects achieving Autoimmune Diseases response.
Phase I: Long-term serious adverse events (SAEs)
Total number, incidence and severity of SAEs from 30 days to 2 years after CD19 CAR T infusion will be recorded.
Phase I: Pharmacokinetics(PK)
The proliferation and survival of CD19 CAR T cells will be measured by flow cytometry and quantitative polymerase chain reaction (qPCR).
Phase I: Pharmacodynamic(PD)
The lymphocyte Subsets Detection and cytokine Detection will be measured by flow cytometry.
Sponsors and contacts
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