A randomized, double-blind, placebo-controlled trial of prophylactic recombinant human granulocyte-macrophage colony-stimulating factor to reduce nosocomial infections in very low birth weight neonates

Abstract

Objective: We carried out a randomized placebo-controlled trial in very low birth weight neonates (VLBWNs), comparing the incidence of nosocomial infections after the prophylactic use of recombinant human granulocyte-macrophage colony-stimulating factor (rhu GM-CSF) versus placebo in VLBWNs. Study design: VLBWNs (n = 264), weighing 501 to 1000 g, ≤72 hours of age were randomly assigned to receive rhu GM-CSF (8 μg/kg/d), administered intravenously (n = 134) over 2 hours daily × 7 days and every other day for 21 days, or placebo (n = 130). The safety, incidence of nosocomial infections, days of absolute neutrophil count ≥4000/mm, 3 peripheral blood progenitor studies, and 24-hour polymorphonuclear leukocyte C3bi receptor expression were compared between the 2 treatment groups. Results: No (grade III/IV) toxicity or adverse events were associated with rhu GM-CSF. The absolute neutrophil count and absolute eosinophil count were significantly elevated in the rhu GM-CSF group on days 7 ( P = .001), 14 ( P = .001), and 21 ( P = .007) and on days 7 and 28 ( P = .012 and P = .001, respectively). However, there was no difference in the incidence of confirmed nosocomial infections between the 2 treatment groups in this trial (40% vs 39%, rhu GM-CSF vs placebo; P = NS). Conclusion: In a large randomized placebo-controlled trial, prophylactic administration of rhu GM-CSF in VLBWNs does not appear to decrease the incidence of nosocomial infections. (J Pediatr 1999;134:64-70)