362 neonates, with a birthweight <750g, were randomized at 33 US centers, to twice weekly fluconazole (6 mg/kg) or placebo for the first 6 weeks of life. The primary efficacy endpoint will be Candida-free survival at study day 49. The research will establish definitive dosing, safety, and efficacy of fluconazole; it will also provide critical information on the effects of fluconazole on neurodevelopmental impairment and antifungal resistance.