Safety and Efficacy of Human Myeloid Progenitor Cells (CLT-008) During Chemotherapy for Acute Myeloid Leukemia

The prolonged period of severe neutropenia caused by induction chemotherapy for the treatment of AML is associated with a nearly universal risk of febrile neutropenia. Standard supportive care strategies include administration of prophylactic anti-bacterial and anti-fungal agents, but serious breakthrough bacterial and fungal infections still occur. Granulocyte colony-stimulating factor (G-CSF; filgrastim, Neupogen®) has been shown to shorten the duration of severe neutropenia, fever, antibiotic use and hospitalization following induction chemotherapy for AML. CLT-008, a human allogeneic myeloid progenitor cell product, is intended to provide the cellular target for G-CSF to produce neutrophils during the period of chemotherapy-induced bone marrow suppression when the patient's own progenitor cells may be limited in responding to G-CSF. It is hypothesized that the production of allogeneic neutrophils from CLT-008 will be sufficient to mitigate the infection-related consequences of induction chemotherapy for AML.