A Trial of "Armored" CAR T Cells Targeting CD19 For Patients With Relapsed CD19+ Hematologic Malignancies
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|ClinicalTrials.gov Identifier: NCT03085173|
Recruitment Status : Active, not recruiting
First Posted : March 21, 2017
Last Update Posted : April 4, 2022
The purpose of this phase I study is to test the safety of different dose levels of specially prepared cells collected from the patient called "modified T cells". The investigators want to find a safe dose of modified T cells for patients with this type of cancer that has progressed after standard therapy. The investigators also want to find out what effects these modified T cells have on the patient and the cancer.
For patients who were treated, had progression of disease and were removed from study, duplicate enrollment is permitted if it is determined the patients could receive a benefit. If the patients meet all eligibility criteria, they can be enrolled onto study a second time as a new accrual, and receive treatment in a higher dose level cohort.
|Condition or disease||Intervention/treatment||Phase|
|Chronic Lymphocytic Leukemia (CLL) Relapsed Refractory||Biological: EGFRt/19-28z/4-1BBL CAR T cells||Phase 1|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||39 participants|
|Intervention Model:||Single Group Assignment|
|Intervention Model Description:||A Phase I Trial of CD19-Targeted EGFRt/19-28z/4-1BBL "Armored" Chimeric Antigen Receptor (CAR) Modified T Cells in Patients with Relapsed or Refractory Chronic Lymphocytic Leukemia (CLL)|
|Masking:||None (Open Label)|
|Official Title:||A Phase I Trial of CD19-Targeted EGFRt/19-28z/4-1BBL "Armored" Chimeric Antigen Receptor (CAR) Modified T Cells in Patients With Relapsed or Refractory CD19+ Hematologic Malignancies|
|Actual Study Start Date :||March 15, 2017|
|Estimated Primary Completion Date :||March 2023|
|Estimated Study Completion Date :||March 2023|
Experimental: EGFRt/19-28z/4-1BBL CAR T cells
Following enrollment, patients will undergo leukapheresis of peripheral blood for further T cell enrichment, activation and genetic modification using a retroviral vector encoding a CD19targeted CAR, the co-stimulatory ligand 4-1BBL and the EGFRt safety system (EGFRt/19-28z/4-1BBL). These T cells will be expanded and after the appropriate number of cells is generated, the modified T cells may be infused fresh or frozen for later use according to standard operation procedures. Modified T cell infusions will be administered 2-7 days following completion of the treating investigator's choice of conditioning chemotherapy. Serial sampling of blood and bone marrow will be performed following treatment to assess toxicity, therapeutic effects, and survival of the genetically modified T cells.
Biological: EGFRt/19-28z/4-1BBL CAR T cells
Cohorts of 3-6 patients will be infused with escalating doses of EGFRt/19-28z/4-1BBL CAR T cells to establish the maximum tolerated dose (MTD). There are 4 planned dose levels: 1 x 10^5, 3 x 10^5, 1 x 10^6, and 3 x 10^6 CAR T cells/kg.
- Maximum tolerated dose (MTD) [ Time Frame: occurring within 30 days from the last infusion ]Cohorts of 3-6 patients each will be treated with escalating doses of modified T cell. At least 3 patients will be treated at each dose level with an accrual of no more than 2 patients per month within each dose level. At least two weeks will elapse from the first patient's T cell infusions before the second patient is treated (on dose level 1) to allow for toxicity and safely assessment. All patients treated at the preceding dose level will be observed a minimum of 4 weeks before dose escalation occurs.
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): NCT03085173
|United States, New York|
|Memorial Sloan Kettering Cancer Center|
|New York, New York, United States, 10065|
|Principal Investigator:||Jae Park, MD||Memorial Sloan Kettering Cancer Center|