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Conventional and Regulatory T Cells in Treating Patients with Advanced Hematologic Malignancies Undergoing T Cell-Depleted Donor Stem Cell Transplant

Trial Status: closed to accrual

This phase I/II trial studies the side effects and best dose of conventional T cells and regulatory T cells and to see how well they work in treating patients with hematologic malignancies that have spread to other places in the body (advanced) and are undergoing T cell-depleted donor stem cell transplant. Giving chemotherapy and total body irradiation before a donor stem cell transplant helps stop the growth of 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. Removing the T cells from the donor cells before transplant may stop this from happening. Giving an infusion of the donor's T cells (donor lymphocyte infusion) later may help the patient's immune system see any remaining cancer cells as not belonging in the patient's body and destroy them (called graft-versus-tumor effect).