Leukemia, B-cell
Conditions
Keywords
CD19, CD22
Brief summary
This is a single center, open-label ,phase 1/2 study to evaluate the safety and efficacy of targeted CD19/CD22 chimeric antigen receptor engineered T cell immunotherapy (CART) in the treatment of CD19/CD22 positive Relapsed or Refractory B-Cell Acute Lymphoblastic Leukemia.
Detailed description
The patients will receive infusion of CART cells targeting CD19 and CD22 to confirm the safety and efficacy of CD19/CD22 CART Cells in Relapsed or Refractory B-Cell Acute Lymphoblastic Leukemia.
Interventions
Split intravenous infusion of CART-19/22 cells of (Dose escalating infusion of 1 - 20 x10\^6 CART-19/22 cells/kg).
Sponsors
Study design
Eligibility
Inclusion criteria
* Male or female patients with CD19+/CD22+ relapsed/refractory B-cell acute lymphoblastic leukemia who have a dismal prognosis (estimated survival from several months to \<2 year). The study will enroll 20 evaluable patients as follows: * Age 6-65 years. * Left ventricular ejection fractions≥ 0.5 by echocardiography. * Creatinine \< 1.6 mg/dL. * Aspartate aminotransferase/aspartate aminotransferase \< 3x upper limit of normal. * Bilirubin \<2.0 mg/dL. * Karnofsky performance status ≥ 60 * Expected survival time ≥ 3 months (according to investigator's judgement)
Exclusion criteria
* Pregnant or lactating women. * Uncontrolled active infection. * Active hepatitis B or hepatitis C infection. * Class III/IV cardiovascular disability according to the New York Heart Association Classification. * HIV infection. * Patients with history of seizure * Active central nervous system leukemia
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of Adverse Events | 12 months | Adverse events are evaluated with CTCAE V4.03 |
Countries
China