About this trial
This study seeks to examine the efficacy and safety of the administration of autologous T cells that have been modified through the introduction of a chimeric antigen receptor (CAR) targeting the B cell surface antigen CD19 following administration of chemotherapy lymphodepletion regimen in children with relapsed or refractory acute lymphoblastic leukemia (ALL) or lymphoma. The overall goal of this study is to validate the safety profile of administration CD19-CAR T cells and describe the response rate in children with relapsed/refractory ALL or lymphoma.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Subjects must have relapsed or refractory ALL or lymphoma treated with at least two lines of therapy. Disease must have either progressed after the last regimen or presented failure to achieve partial or complete remission with the last regimen.
The patient's disease must be CD19 positive, either by immunohistochemistry or flow cytometry analysis on the last biopsy available.
Age 1-17 years.
Performance status: Subjects > 10 years of age: Karnofsky ≥ 50%; Subjects ≤ 10 years of age: Lansky scale ≥ 50%.
Disqualifiers
Autologous transplant within 6 weeks of planned CAR T cell infusion.
Recipient of CAR-T cell therapy outside of this protocol.
Active central nervous system (CNS) or meningeal involvement by tumor.
History of additional active malignancy other than non-melanoma skin cancer, carcinoma in situ (e.g. cervix, bladder, breast).
Trial design
Single group
Treatments tested in this trial
CAR-T
Biological/VaccineCAR-T cell (CHXCART01) infusion intravenously once at a dose of 0.2-2 million cells/kg recipient body weight
Treatment groups
Trial outcomes
Primary outcomes
Complete response rate (CRR) for ALL and Overall response rate (ORR) for lymphoma
Complete response for ALL was defined as leukemic cells \<5% in bone marrow. Overall response for lymphoma was defined as complete response plus partial response defined by Lugano criteria.
Incidence and severity of adverse events
Severity of adverse events are graded according to CTCAEv5.0.
Secondary outcomes
Frequency of minimal residual disease for ALL
Measurable residual disease in bone marrow by flow cytometry or PCR methods.
Overall survival
survival as estimated by Kaplan-Meier method. Death from any cause is considered as event for analysis.
Event-free survival
Event-free survival as estimated by Kaplan-Meier method. Events are death from any cause, or relapse or progression of underlying disease.
Proportion of products successfully manufactured
Success defined as meeting product release criteria with at least 0.2 million cells/kg recipient body weight
Sponsors and contacts
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