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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Filgrastim in patients with chemotherapy-induced febrile neutropenia. A double-blind, placebo-controlled trial.

OBJECTIVE: To determine if filgrastim (recombinant human methionyl granulocyte colony-stimulating factor) used in addition to standard inpatient antibiotic therapy accelerated recovery from infection associated with chemotherapy-induced neutropenia. DESIGN: Randomized, double-blind, placebo-controlled trial. SETTING: Hematology and oncology wards of four teaching hospitals. PATIENTS: 218 patients with cancer who had fever (temperature > 38.2 degrees C) and neutropenia (neutrophil count < 1.0 x 10(9)/L) after chemotherapy. INTERVENTION: Patients were randomly assigned to receive filgrastim (12 micrograms/kg of body weight per day) (n = 109) or placebo (n = 107) beginning within 12 hours of empiric therapy with tobramycin and piperacillin. Patients received treatment and remained in the study until the neutrophil count was greater than 0.5 x 10(9)/L and until 4 days without fever (temperature < 37.5 degrees C) had elapsed. MEASUREMENTS: Days of neutropenia and fever and days in the study (hospitalization); time to resolution of fever and febrile neutropenia; and frequency of the use of alternative antibiotics. RESULTS: Compared with placebo, filgrastim reduced the median number of days of neutropenia (3.0 compared with 4.0 days of a neutrophil count of < 0.5 x 10(9)/L; P = 0.005) and the time to resolution of febrile neutropenia (5.0 compared with 6.0 days; P = 0.01) but not days of fever (3.0 days for both groups). The frequency of the use of alternative antibiotics was similar in the two groups (46% compared with 41%; P = 0.48). The median number of days patients were hospitalized while on study was the same (8.0 days; P = 0.09); however, filgrastim decreased the risk for prolonged hospitalization (> 11 days, 4th quartile) by half (relative risk, 2.1 [95% CI, 1.1 to 4.1]; P = 0.02). In exploratory subset analyses, filgrastim appeared to provide the greatest benefit in patients with documented infection and in patients presenting with neutrophil counts of less than 0.1 x 10(9)/L. CONCLUSIONS: Filgrastim treatment used with antibiotics at the onset of febrile neutropenia in patients with cancer who have received chemotherapy accelerated neutrophil recovery and shortened the duration of febrile neutropenia.[1]


  1. Filgrastim in patients with chemotherapy-induced febrile neutropenia. A double-blind, placebo-controlled trial. Maher, D.W., Lieschke, G.J., Green, M., Bishop, J., Stuart-Harris, R., Wolf, M., Sheridan, W.P., Kefford, R.F., Cebon, J., Olver, I., McKendrick, J., Toner, G., Bradstock, K., Lieschke, M., Cruickshank, S., Tomita, D.K., Hoffman, E.W., Fox, R.M., Morstyn, G. Ann. Intern. Med. (1994) [Pubmed]
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