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Donor TCR Alpha-Beta and CD19-Depleted Stem Cell Transplant in Treating Patients with Relapsed or Refractory Lymphomas

Trial Status: complete

This phase II pilot clinical trial studies how well donor T cell receptor (TCR) alpha-beta and cluster of differentiation (CD) 19-depleted (removed) stem cell transplant works in treating patients with lymphoma that has come back after a period of improvement (relapsed) or does not respond to treatment (refractory). Chemotherapy and radiation therapy are given before transplant to help make room in the bone marrow for transplanted cells and kill any remaining cancer cells. They may also help stop the patient's immune system from rejecting the donor's stem cells. Before the donor's stem cells are infused into the patient, TCR alpha-beta and CD19 cells are removed. These cells are thought to cause graft-versus-host disease, a condition in which the transplanted cells make an immune response against the body's normal cells. Giving chemotherapy before transplant and removing TCR alpha-beta and CD19 cells from the stem cell graft may help improve the outcome of the transplant and result in lower rates of graft-versus host disease.