In Vitro Expanded Allogeneic Epstein-Barr Virus Specific Cytotoxic T-Lymphocytes (EBV-CTLs) Genetically Targeted to the CD19 Antigen in B-cell Malignancies
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|ClinicalTrials.gov Identifier: NCT01430390|
Recruitment Status : Active, not recruiting
First Posted : September 8, 2011
Last Update Posted : November 28, 2023
|Condition or disease||Intervention/treatment||Phase|
|Acute Lymphocytic Leukemia Lymphoma||Biological: Biological/Genetically Modified T cells Drug: Cyclophosphamide-based chemotherapy||Phase 1|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||19 participants|
|Intervention Model:||Single Group Assignment|
|Intervention Model Description:||This is a phase I trial designed to identify tolerable and clinically active doses of allogeneic Epstein - Barr virus specific cytotoxic T lymphocytes (EBV-CTLs) genetically modified to target the B-cell antigen CD19 when administered to patients with CD19+|
|Masking:||None (Open Label)|
|Official Title:||A Phase I Trial Using In Vitro Expanded Allogeneic Epstein-Barr Virus Specific Cytotoxic T-Lymphocytes (EBV-CTLs) Genetically Targeted to the CD19 Antigen in B-cell Malignancies|
|Actual Study Start Date :||September 2011|
|Estimated Primary Completion Date :||September 2026|
|Estimated Study Completion Date :||September 2026|
Experimental: Biological/Genetically Modified T cells
Utilizing our initial trial experience, it was amended to include three (3) expansion cohorts. Cohort 1: patients with CD19+ relapse/refractory (R/R) B cell malignancies occurring after allogeneic/autologous HSCT or solid organ transplant (SOT) infusion occurring following conditioning chemotherapy. Cohort 2:patients with CD10+ high risk B cell malignancies eligible for autologous HSCT followed by 19-28z CRA EBV-CTLs (auto-HSCT preparative regimen serves as conditioning chemotherapy. Cohort 3: patients with CD19+ high risk B cell malignancies eligible for allogeneic HSCT followed by consolidative 19-28z CAR EBV-CTLs (allo-HSCT preparative regimen serves as conditioning chemotherapy) Each expansion cohort has a target accrual of 6 patients treated with fixed CAR EBV-CTL dose (3x106 EBV-CTLs/kg) which has been demonstrated to be the ideal manufacturing dose.
Biological: Biological/Genetically Modified T cells
Following completion of the chemotherapy, genetically modified T cells will be given intravenously at one of 3 dose levels. After the infusion patients will be monitored clinically and with serial blood and marrow evaluations to assess toxicity, therapeutic effects, and the in-vivo survival of the genetically modified T-cells. A fixed CAR EBV-CTL dose (3x106 EBV-CTLs/kg) which has been demonstrated to be the ideal manufacturing dose allowing for multiple infusions and potential for multiple patient treatments per cell line generated will be used for all patients on this trial. Cohorts will be determined separately but cohort 3 will not begin to accrue until cohort 2 has treated three (3) patients without a DLT. Each patient is eligible for up to three (3) infusions.
Drug: Cyclophosphamide-based chemotherapy
Cyclophosphamide-based chemotherapy regimen will be the preferred conditioning chemotherapy prior to CAR T cell infusion for patients with CD19+ malignancy in cohort 1. Recommended chemotherapy regimen consists of single agent Cyclophosphamide at a dose of 3000 mg/m2/dose IV over 1 hour or 1500mg/m2/dose x 2 doses given daily over 1 hour given for 2 days (patients may received reduced dose of cyclophosphamide based on the clinical status of the patient at discretion of the treating physician and with written approval by the MSKCC PI of this study). Alternative cyclophosphamide or non-cyclophosphamide-based regimens based on the clinical status of the patient, disease burden, and likely-hood of response may be used at the discretion of the treating physician with written approval by MSKCC PI of the study. Conditioning chemotherapy will not be given prior to infusions # 2 and #3.
- Evaluate the safety/persistence of (including GVHD) of allogeneic EBV specific CTL modified to express artificial T cell receptors targeting CD19 molecule given for persistence or relapse of B-Cell ALL post allogeneic HSCT. [ Time Frame: 3 years ]
- To assess the effects of the adoptively transferred CD19 specific T-cells on the progression of leukemia. [ Time Frame: 3 years ]
- To quantitate the number of chimeric antigen receptor (CAR) positive T-cells and donor EBV-CTL in the blood at defined intervals post infusion in order to determine their survival and proliferation in the host. [ Time Frame: 3 years ]
- To assess long-term status of treated patients [ Time Frame: 15 years ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01430390
|United States, New York|
|Memorial Sloan Kettering Cancer Center|
|New York, New York, United States, 10065|
|Principal Investigator:||Kevin Curran, MD||Memorial Sloan Kettering Cancer Center|