Status and phase
Conditions
Treatments
Study type
Funder types
Identifiers
About
This phase I/II trial studies the safety and toxicity of post-transplant treatment with donor T cells engineered to express a chimeric antigen receptor (CAR) targeting CD19 in patients who have had a matched related allogeneic hematopoietic stem cell transplant for a CD19+ B cell malignancy.
Full description
PRIMARY OBJECTIVES:
I. To assess the safety and feasibility of pre-emptive adoptive T cell therapy using ex vivo expanded cytomegalovirus (CMV)- or Epstein-Barr virus (EBV)-specific T cells derived from donor CD62L+ central memory (TCM) cells and genetically modified to express a CD19-specific chimeric antigen receptor (CAR) in patients in complete remission after human leukocyte antigen (HLA)-matched related donor hematopoietic stem cell transplantation (HCT) for CD19+ B cell malignancies at high risk of post-HCT relapse. (Cohort A)
II. To assess the safety and feasibility of adoptive T cell therapy using ex vivo expanded CMV- or EBV-specific T cells derived from donor CD62L+ TCM cells and genetically modified to express a CD19-specific CAR in patients with persistent, progressive or relapsed disease after HLA-matched related donor HCT for CD19+ B cell malignancies. (Cohort B)
SECONDARY OBJECTIVES:
I. To determine the duration of in vivo persistence of adoptively transferred bi-specific CD8+ T cells, and the phenotype of persisting T cells.
II. To determine if adoptively transferred bi-specific CD8+ T cells traffic to the bone marrow and function in vivo.
III. To determine if adoptively transferred bi-specific CD8+ T cells proliferate in allogeneic HCT recipients that reactivate CMV or EBV.
IV. To determine if the adoptive transfer of bi-specific CD8+ T cells eliminates CD19+ tumor cells in the subset of patients with a measurable tumor burden prior to T cell transfer.
OUTLINE:
At least 30 days after HCT, patients will receive one intravenous (IV) infusion of CMV/CD19 or EBV/CD19 bi-specific CD8+ T cells.
After completion of study treatment, patients are followed up periodically for 15 years.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
Patients with CD19+ B cell malignancy who have persistent, relapsed or progressive disease after hematopoietic stem cell transplant from an human leukocyte antigen (HLA)-matched related donor OR patients with CD19+ B cell malignancy who are planned for or have had a hematopoietic stem cell transplant from an HLA-matched related donor and are at risk of relapse after HCT defined by any one of the disease-specific criteria listed below:
Philadelphia chromosome negative acute lymphoblastic leukemia:
Philadelphia positive acute lymphoblastic leukemia
Not in CR at the time of pre-transplant evaluation
In CR with the following features:
Chronic lymphocytic leukemia, or low grade B cell lymphomas:
Mantle cell lymphoma:
Diffuse large B cell lymphomas, large B cell transformation of an indolent lymphoma or other aggressive B cell lymphomas
Confirmation of tumor diagnosis and expression of CD19 after review by University of Washington Medical Center (UWMC) or Seattle Cancer Care Alliance (SCCA) pathology services
The patient has signed the informed consent form for this study
DONOR: Genotypic or phenotypic HLA-identical family members
DONOR: Express one or more of the following combinations of viral serostatus and HLA allele:
DONOR: Hematocrit >= 35% at enrollment
DONOR: Age >= 18 years
DONOR: The donor has signed the informed consent form for the study
Exclusion criteria
Primary purpose
Allocation
Interventional model
Masking
1 participants in 1 patient group
Loading...
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal