Effectiveness and Tolerability of Zavegepant for Acute Migraine Treatment Among Those Using CGRP Targeting Preventive Medications

This is a phase IV, open-label, prospective, longitudinal clinical trial of intranasal zavegepant 10 mg, a CGRP receptor antagonist, for the acute treatment of migraine attacks amongst individuals who are concomitantly taking stable doses of CGRP targeting migraine preventive treatment (atogepant, eptinezumab, erenumab, fremanezumab, galcanezumab, rimegepant). The effectiveness and tolerability of zavegepant will be assessed in this specific participant population. Participants who are not already taking a CGRP-targeting migraine preventive treatment but who meet criteria for migraine prevention according to their clinician's discretion, will have the option to start rimegepant 75 mg every other day (qod) for two months. After two months, continued eligibility for participation in the clinical trial of zavegepant will be assessed. Those receiving rimegepant for migraine prevention through their participation in this study will have the option to receive rimegepant for up to 32 consecutive weeks.