Allergan PLC’s oral calcitonin gene-related peptide (CGRP) inhibitor Ubrelvy (ubrogepant) will be the first oral CGRP inhibitor to reach any market and it is the first drug in its class indicated to stop a migraine headache after it starts following the drug’s 23 December approval by the US Food and Drug Administration.
All three monoclonal antibodies against CGRP that are available in the US – Amgen Inc./Novartis AG’s Aimovig (erenumab), Teva Pharmaceutical Industries Ltd.’s Ajovy (fremanezumab) and Eli Lilly & Co.’s Emgality (galcanezumab) are approved for migraine prophylaxis, not for acute (on-demand) treatment of migraine attacks. But while Ubrelvy gives Allergan and its acquirer AbbVie Inc