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Pegfilgrastim versus filgrastim after high-dose chemotherapy and autologous peripheral blood stem cell support.

Author(s): Castagna L, Bramanti S, Levis A, Michieli MG, Anastasia A, Mazza R, Giordano L, Sarina B, Todisco E, Gregorini AI, Santoro A

Affiliation(s): Department of Oncology and Hematology, Istituto Clinico Humanitas, Rozzano, Milan, Italy.

Publication date & source: 2010-07, Ann Oncol., 21(7):1482-5. Epub 2009 Dec 11.

Publication type: Multicenter Study; Randomized Controlled Trial

BACKGROUND: American Society of Clinical Oncology guidelines recommend the use of growth factor after high-dose chemotherapy (HDC) and peripheral blood stem cell (PBSC) support. This randomized trial aims to demonstrate the noninferiority of pegfilgrastim (PEG) compared with filgrastim (FIL) after HDC. PATIENTS AND METHODS: Eighty patients were assigned to FIL at a daily dose of 5 mug/kg or a single fixed dose of PEG (6 mg) 1 day after PBSC. The primary end point was the duration of neutropenia both in terms of absolute neutrophil count (ANC) <0.5 x 10(9)/l and of days to reach an ANC >0.5 x 10(9)/l. RESULTS: The mean duration of neutropenia was 6 and 6.2 days and the mean time to reach an ANC >0.5 x 10(9)/l was 11.5 and 10.8 in the FIL and PEG group, respectively. No differences were observed in the mean time to reach an ANC >1.0 x 10(9)/l (12.2 versus 12.0 days) in the incidence of fever (62% versus 56%) and of documented infections (31% versus 25%). The mean duration of antibiotic therapy was 5.7 and 4.0 days in FIL and PEG group, respectively. CONCLUSION: PEG is not inferior to FIL in hematological reconstitution and represents an effective alternative after HDC and PBSC.

Page last updated: 2010-10-05

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