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Title: Breakthrough febrile neutropenia and associated complications in non-Hodgkin's lymphoma patients receiving pegfilgrastim
Authors: Ng, J.H.
Ang, X.Y.
Tan, S.H.
Tao, M.
Lim, S.T.
Chan, A. 
Keywords: Febrile neutropenia
Granulocyte-colony-stimulating factors
Issue Date: Mar-2011
Citation: Ng, J.H., Ang, X.Y., Tan, S.H., Tao, M., Lim, S.T., Chan, A. (2011-03). Breakthrough febrile neutropenia and associated complications in non-Hodgkin's lymphoma patients receiving pegfilgrastim. Acta Haematologica 125 (3) : 107-114. ScholarBank@NUS Repository.
Abstract: Background: Febrile neutropenia (FN) is a dose-limiting complication of chemotherapy. Judicious usage of prophylactic granulocyte-colony-stimulating factors, such as pegfilgrastim, can prevent the occurrence of FN. Although studies have been conducted to evaluate the effectiveness of pegfilgrastim to prevent FN in lymphoma patients receiving myelosuppressive chemotherapy, limited data is available to identify patients who are at risk of developing FN despite primary prophylaxis with pegfilgrastim (breakthrough FN). Objectives: The aim of this study is to: (1) identify clinical characteristics of patients who develop breakthrough FN, and (2) provide descriptive data on the incidence of breakthrough FN among lymphoma patients. Methods: This is a single-centre, retrospective cohort study. Non-Hodgkin's lymphoma patients who received CHOP-based chemotherapy with pegfilgrastim between January 2007 and May 2009 were identified through the Singapore Lymphoma Registry. Patient demographics, past and present medical history, cancer treatment history and laboratory parameters were collected from electronic databases and medical records. In this study, patients did not receive oral antibiotic prophylaxis along with chemotherapy. Results: A total of 132 patients were included in the final analysis. Median age of patients was 55 years. The incidence of breakthrough FN among patients in cycle 1 and across all cycles was 4.5% and 13.6%, respectively (n = 132). 3.3% (n = 60) of the patients receiving dose-dense chemotherapy had breakthrough FN, and this was 22.2% (n = 72) in patients receiving standard dose chemotherapy. Administration of chemotherapy every 21 days (adjusted OR = 12.1, p = 0.009) and patients with positive blood cultures (adjusted OR = 18.1, p = 0.001) were strongly associated with the occurrence of breakthrough FN. Conclusion: Despite routine administration of pegfilgrastim with CHOP chemotherapy, a high proportion of patients experienced FN after chemotherapy. Identifying patients at risk for breakthrough FN events may allow the optimization of myeloid growth factor usage among lymphoma patients receiving chemotherapy. Copyright © 2010 S. Karger AG, Basel.
Source Title: Acta Haematologica
ISSN: 00015792
DOI: 10.1159/000321545
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