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  • Title: A randomized, double-masked, placebo-controlled trial of recombinant granulocyte colony-stimulating factor administration to preterm infants with the clinical diagnosis of early-onset sepsis.
    Author: Miura E, Procianoy RS, Bittar C, Miura CS, Miura MS, Mello C, Christensen RD.
    Journal: Pediatrics; 2001 Jan; 107(1):30-5. PubMed ID: 11134430.
    Abstract:
    OBJECTIVE: We performed a randomized, double-masked, parallel-groups, placebo-controlled trial of recombinant granulocyte colony-stimulating factor (rG-CSF) administration to 44 preterm neonates who had blood cultures obtained and antibiotics begun because of the clinical diagnosis of early-onset sepsis. Two primary outcome variables were tested 1) mortality and 2) development of nosocomial infections over the 2-week period after dosing. DESIGN AND METHODS: The treatment group (n = 22) received 10 microgram/kg/day of intravenous rG-CSF once daily for 3 days and the placebo group (n = 22) received the same volume of a visually indistinguishable vehicle. Mortality and culture-proven nosocomial infections were recorded. Immediately before the first, second, and third doses, and again 10 days after the first dose, serum concentrations were determined for tumor necrosis factor-alpha, interleukin 6, granulocyte-macrophage colony stimulating factor, and G-CSF, and blood leukocyte counts, absolute neutrophil counts, immature/total neutrophil ratios, platelet counts, and hemoglobin concentrations were measured. RESULTS: The treatment and placebo groups were of similar gestational age (29 +/- 3 vs 31 +/- 3 weeks) and birth weight (1376 +/- 491 vs 1404 +/- 508 g), and had similar Apgar scores and 24-hour Score for Neonatal Acute Physiology scores. The mortality rate was not different between treatment and placebo groups. However, the occurrence of a subsequent nosocomial infection was lower in the rG-CSF recipients (relative risk:.19; 95% confidence interval:.05-.78). rG-CSF treatment did not alter the serum concentrations of the cytokines measured (except for G-CSF). Serum G-CSF levels and blood neutrophil counts were higher in the treatment than in the placebo group 24 hours and 48 hours after dosing. CONCLUSIONS: Administration of 3 daily doses of rG-CSF (10 microgram/kg/day) to premature neonates with the clinical diagnosis of early-onset sepsis did not improve mortality but was associated with acquiring fewer nosocomial infections over the subsequent 2 weeks.
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