Evaluation of 4th Generation Safety-designed CAR T Cells Targeting High-risk and Refractory B Cell Lymphomas
Conditions
B-cell Lymphomas
Conditions: official terms
Lymphoma - Lymphoma, B-Cell
Conditions: Keywords
B cell lymphoma, non-Hodgkin's lymphoma, Burkitt lymphoma, diffused large B cell lymphoma, B cell malignancy
Study Type
Interventional
Study Phase
Phase 1/Phase 2
Study Design
Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Intervention
Name: Anti-CD19 CAR T cells
Type: Genetic
Overall Status
Recruiting
Summary
Currently, a majority of B cell lymphomas cannot be cured by standard chemo-radiotherapy. Most B cell lymphomas express cluster of differentiation antigen 19 (CD19), which represents a very attractive target for chimeric antigen receptor (CAR)-based immune cell therapy. This study will evaluate a novel 4th generation CD19 CAR engineered with a self-withdrawal mechanism (19273-4SCAR) for both efficacy and safety in lymphoma patients.
Detailed Description
CD19 single chain antibody-based chimeric antigen receptor (CAR)-engineered T cells have demonstrated great clinical potential in treating chronic and acute B cell leukemias. B cell lymphomas, similar to B cell leukemias, express CD19 surface molecules, and the majority of the B cell lymphoma patients cannot be cured by standard chemo-radiotherapy. CD19 CAR-based adoptive T cell therapy is associated with an unwanted adverse effect, the loss of CD19 B cells, which results in humoral immune deficiency. This study will evaluate a novel 4th generation CD19 CAR engineered with a self-withdrawal genetic mechanism (19273-4SCAR) for both efficacy and safety in lymphoma patients. The 4th generation design of the CAR incorporates the intracellular signaling domain of cluster of differentiation antigen 27 (CD27), known to be associated with T cell activation, survival and longevity. The inducible caspase 9 self-withdrawal design allows for rapid elimination of the infused CAR T cells upon complete eradication of the tumor cells, which will be followed by the recovery of humoral immunity. Patients receiving the 19273-4SCAR T cells will be closely monitored for infusion response, tumor eradication effect, longevity of the CAR T cells, and the recovery of B cell functions after withdrawal of the CAR T cells.
Criteria for eligibility
Healthy Volunteers: No
Maximum Age: N/A
Minimum Age: 18 Years
Gender: Both
Criteria: Inclusion Criteria:

- Relapsed or refractory CD19(+) B cell lymphoma patients proved by immuno-histochemistry (IHC) or Flow-cytometry.

- Not eligible for autologous stem-cell transplantation (ASCT) or relapsed after ASCT.

- Eastern Cooperative Oncology Group (ECOG) performance status of 0-2.

- Age≥18.

- Pulse oximetry of > 90% on room air.

- Adequate hepatic function, defined as alanine transaminase (ALT) <3 x upper limit of normal (ULN), aspartate aminotransferase (AST) <3 x ULN; serum bilirubin and alkaline phosphatase <2 x ULN.

- Adequate renal function, defined as serum creatinine <2.0mg/dl.

- Adequate heart function with LVEF≥50%

- Hb≥80g/L

- Measurable disease can be identified.

- Life expectancy ≥3 months.

- Sexually active patients must be willing to utilize one of the more effective birth control methods during the study and for 1 year after the study is concluded. The male partner should use a condom.

- Patients must sign an informed consent.

Exclusion Criteria:

- Uncontrolled active infection.

- Active infection with hepatitis B virus (HBV), hepatitis C virus (HCV).

- HIV positive

- Pregnant or lactating.

- Currently enrolled in another clinical trial.

- Concurrent use of systemic steroids.
Location
Peking University Cancer Hospital
Beijing, Beijing, China
Status: Recruiting
Contact: Jun Zhu, MD - +86-10-88196596 - zj@bjcancer.org
Start Date
January 2014
Completion Date
October 2017
Sponsors
Peking University
Source
Peking University
Record processing date
ClinicalTrials.gov processed this data on July 28, 2015
ClinicalTrials.gov page