“OC-09 | Atogepant in treatment-refractory chronic migraine: is a revision of current criteria for refractory migraine appropriate? Lorenzo Tartaglione, Marcello Silvestro, Ilaria Orologio, Marcella Marziani, Francesco Maurizio Chianese, Pasquale Sozio, Alessandro Tessitore, Gioacchino Tedeschi, Antonio Russo | Headache Center, Department of Advanced Medical and Surgical Sciences (DAMSS), University of Campania ‘Luigi Vanvitelli’, Naples, Italy” (2025) Confinia Cephalalgica, 35(S1). doi:10.4081/cc.2025.15806.