Objective: To test the hypothesis that prophylactic treatment of neutropenic premature neonates with recombinant granulocyte-colony stimulating factor (rG-CSF) would reduce the incidence of nosocomial infections (NIs).

Study Design: A total of 25 neonatal intensive care units participated in this multicenter, randomized, double-blind, placebo-controlled trial. Premature infants of gestational age (GA)
Results: A total of 102 infants received rG-CSF (mean GA, 29.2 weeks), and 98 received placebo (mean GA, 29.1 weeks). Survival free of confirmed infection for 4 weeks after treatment was 74/102 in the rG-CSF group and 66/98 in the placebo group (P = .42). However, during 2 weeks, there was a significant difference between groups (86/102 vs 70/98; P = .028).

Conclusions: In this population, prophylactic rG-CSF did not significantly increase survival free of infection at 4 weeks after treatment. The transient effect observed at 2 weeks in the most immature infants should be evaluated further.

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