Mobilization of hematopoietic progenitor cells with granulocyte colony stimulating factors for autologous transplant in hematologic malignancies: a single center experience

Autor: Raul Gabús, Gabriel Borelli, Martín Ferrando, Enrique Bódega, Estela Citrín, Constanza Olivera Jiménez, Ramón Álvarez
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Revista Brasileira de Hematologia e Hemoterapia, Vol 33, Iss 6, Pp 410-416 (2011)
Druh dokumentu: article
ISSN: 1516-8484
1806-0870
DOI: 10.5581/1516-8484.20110115
Popis: BACKGROUND: In 2006 the Hematology Service of Hospital Maciel published its experience with peripheral blood progenitor cell harvesting for autologous stem cell transplantation using Filgen JP (Clausen Filgrastim). After mobilization with a mean filgrastim dose of 78 mcg/Kg, 4.7 x 10(6) CD34+ cells/Kg were obtained by apheresis. Age above 50, multiple myeloma as underlying disease and a malignancy that was not in remission were identified as frequent characteristics among patients showing complex mobilization. OBJECTIVE: The aim of this study was to compare stem cell mobilization using different brands of filgrastim. METHODS: One hundred and fifty-seven mobilizations performed between 1997 and 2006 were analyzed. This retrospective analysis comparative two groups of patients: those mobilized with different brands of filgrastim (Group A) and those who received Filgen JP (Clausen Filgrastim) as mobilizing agent (Group B). A cluster analysis technique was used to identify four clusters of individuals with different behaviors differentiated by age, total dose of filgrastim required, number of apheresis and harvested CD34+ cells. RESULTS: The mean total dose of filgrastim administered was 105 mcg/Kg, the median number of apheresis was 2 procedures and the mean number of harvested stem cells was 4.98 x 10(6) CD34+ cells/Kg. No significant differences were observed between Groups A and B regarding the number of apheresis, harvested CD34+ cells and number of mobilization failures, however the total dose of filgrastim was significantly lower in Group B. CONCLUSIONS: Among other factors, the origin of the cytokine used as mobilizing agent is an element to be considered when evaluating CD34+ cell mobilization results.
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