The aim of Phase II of this study is to find the minimum dose of paracetamol that closes the ductus arteriosus before or at day 7
after birth in preterm infants born at a gestational age of 23 to 26 weeks. Phase II of this study will be conducted in 10 centres of
4 European countries. A total of 30 preterm babies will be included over a period of 6 months.
