“…Little is known about the impact and uptake of this device and approved biosimilars on G-CSF prescribing patterns and the uptake of these new products in the United States. Existing studies evaluated utilization at the prescription level rather than patient level, 16 , 17 , 18 , 19 , 20 , 21 limiting insights into trends within certain patient groups, for example, those with high FN risk owing to regimen or patient factors.…”