2018-0674 - IL-7 for T-Cell Recovery Post Haplo and CB Transplant - Phase I/II

This phase I/II trial studies side effects and best dose of recombinant interleukin-7 in promoting immune cell recovery in patients with acute myeloid leukemia, myelodysplastic syndrome, chronic myeloid leukemia, or myeloproliferative disease after a haploidentical or cord blood stem cell transplant. A haploidentical transplant is a transplant that uses stem cells from a donor that is partially (at least 50%) matched to the patient. Umbilical cord blood is a source of blood-forming cells that can be used for transplant, also known as a graft. However, there is a small number of blood-forming cells available in the transplant, which may delay the "take" of the graft in the recipient. Recombinant interleukin-7 may affect the "take" of the graft and the recovery of certain blood cells related to the immune system (called T-cells, natural killer cells, and B cells) in patients who have had a haploidentical or cord blood stem cell transplant.

PRIMARY OBJECTIVES: I. To determine the safety and establish the optimal biologic dose of glycosylated recombinant human interleukin-7 (CYT107). SECONDARY OBJECTIVES: I. To determine the rate of cytomegalovirus (CMV), Epstein-Barr virus (EBV) and BK viral infections in umbilical cord blood stem cell transplantation (CBT) and haploidentical stem cell transplantation (haplo-SCT) patients who receive three doses of interleukin-7 (IL-7) following engraftment. II. To calculate the overall survival (OS), progression-free survival (PFS), and cumulative incidence of graft versus host disease (GVHD) and cumulative incidence of relapse. III. To evaluate the effects of CYT107 on the recovery of T, natural killer (NK) and B cell populations and their functions in vitro; these data will be used to identify the optimal dose to move to a phase II trial. OUTLINE: This is a dose-escalation study. Within 60-180 days after CBT, patients receive recombinant interleukin-7 intramuscularly (IM) or subcutaneously (SC) once per week for 3 weeks. After completion of study treatment, patients are followed for up to 3 years.