Objective: To compare the efficacy of lenograstim and filgrastim on haematological recovery following an autologous peripheral blood stem cell transplantation (PBSCT) with high-dose chemotherapy.
Methods: A retrospective case-controlled study.
Results: Absolute neutrophil count (ANC) recovery above 0.5 x 10(9)/l and white blood cell (WBC) recovery above 4 x 10(9)/l for 3 consecutive days was achieved earlier with filgrastim than with lenograstim ((13.2 +/- 8.0 vs 19.0 +/- 10.0 days, p = 0.004), (16.9 +/- 9.7 vs 29.9 +/- 16.6 days, p = 0.001), respectively). The platelet recovery above 20 x 10(9)/l was also achieved earlier with filgrastim than with lenograstim (19.5 +/- 11.6 vs 27.2 +/- 13.8 days, p = 0.006). Furthermore, filgrastim-treated patients received fewer days of granulocyte colony simulating factor (G-CSF) administration (12.5 +/- 7.0 vs 18.6 +/- 8.5 days, p = 0.001) and spent less time in hospital (23.7 +/- 10.9 vs 32.0 +/- 17.6 days, p = 0.009). Duration of antibiotic administration was also significantly shorter in the filgrastim group (13.6 +/- 7.6 vs 29.1 +/- 19.8 days, p = 0.001).
Conclusion: In patients undergoing PBSCT following high-dose chemotherapy, filgrastim significantly reduced the duration of neutropenia, thrombocytopenia and days of G-CSF administration, and led to earlier hospital discharge compared with lenograstim.