Outcomes of chemotherapy-induced (febrile) neutropenia prophylaxis with biosimilar filgrastim (Zarzio®) initiated “same-day” ( 72 h): findings from the MONITOR-GCSF study

Purpose Granulocyte colony-stimulating factors (G-CSFs) are indicated for prophylaxis or management of chemotherapy-induced neutropenia (CIN) and febrile neutropenia (FN). Guidelines recommend G-CSF 24–72 h following chemotherapy; however, some evidence suggests that G-CSF initiated < 24 h may benefit some patients.