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About
This phase I trial studies the side effects and best dose of CD4+ and CD8+ HA-1 T cell receptor (TCR) (HA-1 T TCR) T cells in treating patients with acute leukemia that persists, has come back (recurrent) or does not respond to treatment (refractory) following donor stem cell transplant. T cell receptor is a special protein on T cells that helps them recognize proteins on other cells including leukemia. HA-1 is a protein that is present on the surface of some peoples' blood cells, including leukemia. HA-1 T cell immunotherapy enables genes to be added to the donor cells to make them recognize HA-1 markers on leukemia cells.
Full description
OUTLINE:
This is a dose-escalation study of CD4+ and CD8+ HA-1 TCR T cells.
Patients receive lymphodepleting chemotherapy (e.g., fludarabine and cyclophosphamide or debulking regimens as specified in the protocol) ending 2-14 days prior to HA-1 TCR T cell administration. Patients then receive CD4+ and CD8+ HA-1 TCR T cells intravenously (IV).
After completion of study treatment, patients are followed up closely for 12 weeks and then every 6 months for years 1-5, and every year for years 6-15.
Initial study activity was funded in part by HighPass Bio, Inc. Current study activity is funded in part by PromiCell Therapeutics, Inc.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
Subject age 0-80 years at the time of enrollment.
Subject must express HLA-A*0201
Subject must have the HA-1(H) genotype (RS_1801284: A/G, A/A)
Subject must have an adult donor for HCT who is adequately HLA matched by institutional standards (includes HLA-matched related or unrelated donors, and HLA-mismatched family donors, including haploidentical donors) and is either:
Subjects who are currently undergoing or who previously underwent allogeneic HCT for
Acute myeloid leukemia (AML) of any subtype
Acute lymphoid leukemia (ALL) of any subtype
Mixed phenotype/undifferentiated/any other type of acute leukemia, including blastic plasmacytoid dendritic cell neoplasm
Chronic myeloid leukemia with a history of blast crisis and:
Myelodysplastic syndrome (MDS) of any subtype
Chronic myelomonocytic leukemia (CMML)
Juvenile myelomonocytic leukemia (JMML)
Subjects must be able to understand and be willing to give informed consent; decision-impaired adults may consent with their legally authorized representative; parent or legal representative will be asked to consent for subjects younger than 18 years old
Subjects must agree to participate in long-term follow-up for up to 15 years if they are enrolled in the study and receive T cell infusion
Subjects who have relapsed or have MRD after HCT may receive other agents for treatment of disease and remain eligible for the protocol
A specific performance status score is not required for enrolling on the protocol; a delay in infusion of the HA-1 TCR T cells may be required for subjects with low performance status
DONOR SELECTION INCLUSION
Exclusion criteria
DONOR SELECTION EXCLUSION
Primary purpose
Allocation
Interventional model
Masking
24 participants in 1 patient group
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Central trial contact
FHCC Immunotherapy Intake; FHCC Immunotherapy Intake
Data sourced from clinicaltrials.gov
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