Abstract
Patterns of myeloid growth factor (GF) usage and febrile neutropenia (FN) were examined in patients >60 years of age with diffuse large B-cell non-Hodgkin lymphoma (DLBCL) enrolled on CALGB 9793/ECOG-SWOG 4494, receiving initial therapy with cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP) or rituximab + CHOP (R-CHOP). Myeloid GFs were administered to 256/520 (49%) patients. Indications for use were: prevent dose reduction/dose delay (81%, 207/256); treat FN or non-febrile neutropenia (NFN) (19%, 48/256). One or more FN episodes occurred in 41% (212/520) of patients, with FN most often in cycle 1 (38% of episodes). In multivariate analysis, risk factors for FN included age >65 years (odds ratio (OR) = 2.6, 95% CI: [1.4, 4.9]) and anemia (hemoglobin <12 g/dl) (OR =2.2, 95% confidence intervals (CI): [1.4, 3.5]. Myeloid GF use was common in this older DLBCL population receiving CHOP-based therapy, as was FN, especially during cycle one. Risk factors predictive for FN should be used prospectively to identify patients for whom myeloid GFs are best utilized.
Keywords:
Lymphoma; diffuse large B-cell lymphoma; elderly; myeloid growth factor; neutropenia.
MeSH terms
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Age Factors
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Aged
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Aged, 80 and over
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Antibodies, Monoclonal, Murine-Derived / adverse effects
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Antibodies, Monoclonal, Murine-Derived / therapeutic use
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Antineoplastic Combined Chemotherapy Protocols / adverse effects*
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Antineoplastic Combined Chemotherapy Protocols / therapeutic use
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Colony-Stimulating Factors / administration & dosage
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Colony-Stimulating Factors / therapeutic use*
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Cyclophosphamide / adverse effects
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Cyclophosphamide / therapeutic use
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Doxorubicin / adverse effects
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Doxorubicin / therapeutic use
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Febrile Neutropenia / diagnosis
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Febrile Neutropenia / drug therapy*
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Febrile Neutropenia / epidemiology
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Febrile Neutropenia / etiology*
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Female
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Humans
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Incidence
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Lymphoma, Large B-Cell, Diffuse / complications*
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Lymphoma, Large B-Cell, Diffuse / diagnosis
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Lymphoma, Large B-Cell, Diffuse / drug therapy
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Lymphoma, Large B-Cell, Diffuse / mortality
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Male
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Middle Aged
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Neoplasm Staging
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Prednisone / adverse effects
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Prednisone / therapeutic use
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Retrospective Studies
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Risk Factors
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Rituximab
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Time Factors
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Treatment Outcome
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Vincristine / adverse effects
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Vincristine / therapeutic use
Substances
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Antibodies, Monoclonal, Murine-Derived
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Colony-Stimulating Factors
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R-CHOP protocol
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Rituximab
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Vincristine
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Doxorubicin
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Cyclophosphamide
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Prednisone