About this trial
The goal of this clinical trial is to learn about the safety, pharmacokinetics and pharmacodynamics profile of KN5501 cell injection in adults with systemic lupus erythematosus(SLE). It will also learn if KN5501 cell injection works to treat refractory SLE. The main questions it aims to answer are:
1. Is KN5501 cell injection safe in adults with SLE? And the maximum tolerated dose? 2. Does KN5501 cell injection lower the disease activity of SLE in adults with refractory SLE?
Participants will:
Receive one or multiple (3 to 5 times) intravenous infusion of KN5501 cell injection at inpatient ward after lymphodepletion.
Visit the clinic at predefined frequency (from 1 week interval to 12-16 weeks' interval) for checkups and tests.
Eligibility criteria
Qualifiers
1. Aged 18~70(including thresholds) when obtaining informed consent;
2. Body weight > 40.0 kg at screening;
3. Refractory SLE patients with moderate to severe activity;
4. CBC meeting predefined requirements at screening, including ANC ≥ 1.5×10^9/L, Hb ≥ 80g/L, and PLT ≥ 50×10^9/L(Not applicable, if it is ITP due to active SLE disease which is judged by investigator);
Disqualifiers
1. Hypersensitive or allergic to any components of KN5501(e.g. DEXTRAN 40) or other trial interventions including fludarabine, cyclophosphamide, and tocilizumab, or having ever experienced severe anaphylaxis;
2. Severe lupus nephritis patients, defined as proteinuria ≥3.5g/24h or a history of renal replacement therapy. Or high risk of progressive LN disease which will probably require induced intensive treatment;
3. CNS affected, including but not limited to lupus encephalopathy, seizure, strock(ischemic or hemorrhagic), dementia, cerebellar disease, organic brain syndrome, encephalitis, CNS vasculitis, or mental disease;
4. Severe lung disease, e.g. pulmonary hypertension ≥ grade 3(WHO), or requiring mask oxygen therapy or ventilator-assisted breathing(non-invasive or invasive) ;
Trial design
Treatments tested in this trial
- KN5501 cell injection