| Active, not recruiting | 2/3 | 824 | Europe | Acetaminophen, NACL 0.9% | Institut National de la Santé Et de la Recherche Médicale, France, UPCET, PARTNERS for International clinical Research, European Fundation for the Care of the Newborn Infants, Connect for Children | Patency of the Ductus Arteriosus, Acetaminophen, Extreme Prematurity | 07/24 | 07/24 | | |