Efficacy and Tolerability of Intranasal Fentanyl Spray in Cancer Patients with Breakthrough Pain

¹Norwegian University of Science and Technology (NTNU), Faculty of Medicine, European Palliative Care Research Centre, Department of Cancer Research and Molecular Medicine, Trondheim, Norway, ²St. Olavs Hospital, Trondheim University Hospital, Cancer Clinic, Trondheim, Norway, ³Takeda Pharma A/S, Clinical Science, Roskilde, Denmark, ⁴Takeda Pharma A/S, Analytical Science, Roskilde, Denmark, ⁵Norwegian University of Science and Technology (NTNU), Faculty of Medicine, PRC/IKM, Trondheim, Norway, ⁶St. Olavs Hospital, Trondheim University Hospital, Department of Oto-Rhino-Laryngology, Trondheim, Norway, ⁷Drammen Hospital, Vestre Viken HF, Palliative Unit, Oncology Department, Drammen, Norway, ⁸Jósa András Oktató Kórház Egészségügyi, Onkoradiológiai Osztály, Nyíregyháza, Hungary