This phase II trial studies how well cytokine-induced killer cells after donor stem cell transplant work in treating patients with acute myeloid leukemia that has come back or has not responded to treatment. Giving chemotherapy and total-body irradiation before a donor stem cell transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells (called graft-versus-host disease). Giving cytokine-induced killer cells after the transplant may stop this from happening.
Additional locations may be listed on ClinicalTrials.gov for NCT02782546.
See trial information on ClinicalTrials.gov for a list of participating sites.
PRIMARY OBJECTIVE:
I. To determine the rate of leukemia free survival (LFS) at 1 year post-transplantation.
SECONDARY OBJECTIVES:
I. To determine the rate of LFS at 3 months post-transplantation.
II. To determine the complete remission (CR) rate at day 28 post-transplantation.
III. To determine the rate of overall survival (OS) at 1-year post-transplantation.
IV. To determine the incidence of relapse in patients who are found to be in CR on day 28 marrow post-transplant.
EXPLORATORY OBJECTIVES:
I. To determine the incidence of transplant related mortality (TRM) at day 100 post-transplantation.
II. To determine the incidence of transplant related mortality (TRM) at 6 months post-transplantation.
III. To determine the incidence of transplant related mortality (TRM) at 1 year post-transplantation.
IV. To determine the time to neutrophil engraftment.
V. To determine the time to platelet engraftment.
VI. To determine the engraftment rates at day 100 post-transplant by the donor/recipient STR (single tandem repeat) chimerism and or X/Y fluorescence in situ hybridization (FISH) in sex mismatched donor-recipient pairs.
VII. To determine the incidence and severity of acute graft versus host disease (GVHD) rates.
VIII. To determine the incidence and severity of chronic GVHD rates.
CORRELATIVE OBJECTIVES:
I. To evaluate the number, phenotype, and function of memory-like natural killer (NK) cells following adoptive transfer.
II. To assess serum cytokine levels, and superagonist interleukin-15:interleukin-15 receptor alphaSu/Fc fusion complex ALT-803 (ALT-803) levels, before and after cytokine-induced memory-like (CIML) NK cell infusion.
III. To assess functional responses and gene expression of memory-like NK cells and graft-derived NK cells to leukemia targets.
IV. To assess immune reconstitution following haploidentical (haplo)-hematopoietic cell transplantation (HCT) with same donor NK cell infusion.
V. To assess acute myeloid leukemia (AML) blasts and the bone marrow (BM) microenvironment pre-therapy and at first relapse to identify mechanisms of immunoevasion and assess association with AML mutations and clonal architecture.
VI. To determine the impact of KIR genotype and KIR ligand mismatches on the post-transplant outcomes.
OUTLINE:
CONDITIONING: Patients receive 1 of 2 conditioning regimens.
REGIMEN 1: Patients receive fludarabine phosphate intravenously (IV) over 30 minutes on days -6 to -2, cyclophosphamide IV over 60 minutes on days -6 to -5, and undergo total body irradiation (TBI) on day -1.
REGIMEN 2: Patients receive fludarabine IV over 30 minutes on days -6 to -4 and undergo TBI daily for 4 days.
REGIMEN 3: Patients receive busulfan IV on days -6 to -3 and fludarabine IV over 30 minutes on days -6 to -2.
All patients undergo HCT on day 0 and receive cyclophosphamide IV over 120 minutes on days 3-4. Patients then receive cytokine-induced killer cells IV on day 7. Beginning 4 hours after cytokine-induced killer cell infusion, patients receive ALT-803 subcutaneously (SC) on days 7, 28, 49, and 70. Patients also receive tacrolimus IV or orally (PO) on days 5-180 and mycophenolate mofetil IV or PO thrice daily (TID) on days 5-35 in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed for up to 48 months.
Lead OrganizationSiteman Cancer Center at Washington University
Principal InvestigatorAmanda Fishback Cashen