- Any hematopoietic growth factors (eg, filgrastim [granulocyte colony-stimulating factor; G-CSF], sargramostin [granulocyte-macrophage colony-stimulating factor; GM-CSF]) within 7 days of the first dose of study drug or pegylated G-CSF (pegfilgrastim) or darbepoetin within 14 days of the first dose of study drug.