NCT06465147 · Seattle Children's Hospital
REACT-01: Reversing Autoimmunity Through Cell Therapy
What this study is about
This is a phase 1, where both patients and doctors know the treatment given, non-randomly assigned study enrolling pediatric and young adult research participants with treatment-refractory Systemic Lupus Erythematosus (SLE), to examine the safety, feasibility, and effectiveness of administering T cell products derived from peripheral blood mononuclear cells (PBMC) that have been genetically modified to express CD19 specific chimeric antigen receptor (CAR) A child or young adult meeting all eligibility criteria and meeting none of the reasons someone cannot join will have their T cells collected. The T cells will then be bioengineered into a CAR T cell that targets circulating and tissue residing B cells.
View original scientific description
This is a phase 1, open-label, non-randomized study enrolling pediatric and young adult research participants with treatment-refractory Systemic Lupus Erythematosus (SLE), to examine the safety, feasibility, and efficacy of administering T cell products derived from peripheral blood mononuclear cells (PBMC) that have been genetically modified to express CD19 specific chimeric antigen receptor (CAR) A child or young adult meeting all eligibility criteria and meeting none of the exclusion criteria will have their T cells collected. The T cells will then be bioengineered into a CAR T cell that targets circulating and tissue residing B cells.
Interventions
BIOLOGICAL
SCRI-CAR19v3
Single infusion of SCRI-CAR19v3
Primary outcome measures
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]
Time frame: 28 days post-infusion
The investigators will assess and described the type, frequency, severity, and duration of adverse events associated with the CAR T cell product.
Rate of SCRI-CAR19v3 Manufacturing Success
Time frame: 28 days
We will measure the number of successfully manufactured SCRI-CAR19v3 products.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Male and female subjects aged between 2-30 years old. The first 3 subjects will be aged ≥ 17. The FDA will review safety data to determine if the age can be lowered first to ≥ 12 then, following the treatment of 3 further subjects aged 12-17, to ≥ 2
- Serologically active Systemic Lupus Erythematosus that is refractory to treatment
- Able to tolerate apheresis or already has an apheresis product available for use in manufacturing.
- ≥ 24 weeks post last Rituximab or related B cell depleting therapy
- ≥ 12 weeks post last Belimumab / Anifrolumab therapy
- ≥ 4 weeks post last calcineurin inhibitor treatment
- For subjects receiving non-calcineurin immunosuppressive therapy, on a stable dose for ≥ 8 weeks before enrollment
- For subjects receiving corticosteroid therapy, on a stable dose for ≥ 2 weeks before enrollment
- Adequate organ function
- Adequate laboratory values
- Subjects of childbearing or child-fathering potential must agree to use highly effective contraception from consent through 12 months following infusion of investigational product on trial
- Subjects must be willing to remain within 1 hour's drive of Seattle Children's Hospital for 4 weeks following CAR T cell infusion.
- Subject and/or legally authorized representative has signed the informed consent form for this study
Exclusion criteria
- History or presence of active CNS lupus or other CNS disease
- Kidney dysfunction requiring renal replacement therapy
- Pregnant or breastfeeding
- Insufficient pulmonary reserve including history of COPD, \>10 pack year smoking history or SLE lung disease with hypoxia at rest with oxygen saturation ≤92% on room air
- Unable to tolerate repletion with any formulation of IgG.
- Active or prior malignancy, unless the malignancy was treated and there is no evidence of recurrent disease \<5 years from enrollment.
- Prior solid organ transplantation.
- Presence of an active severe infection
- Presence of any condition that, in the opinion of the investigator, would prohibit the subject from undergoing treatment under this protocol
Where
- Seattle, Washington
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Dec 12, 2025 · Source of record for eligibility and locations