Phase 3, Multicenter, Randomized, Double-blind, Group Sequential, Placebo-controlled Study to Assess Efficacy and Safety of Rimegepant for the Treatment of Migraine (With or Without Aura) in Children and Adolescents ≥ 6 to < 18 Years of Age

Inclusion Criteria: 1. History of migraine (with or without aura) for \> 6 months before Screening according to the IHS Classification ICHD-319 specifications for pediatric migraine. History may be verified using both medical records and recall by the participant and/or participant's parent(s)/legal representative(s). 2. History of 1 to 8 moderate or severe attacks per month during the 2 months prior to enrollment, with attacks lasting \> 3 hours without treatment, and attacks occurring at intervals \> 24 hours. 3. Prophylactic migraine medication are permitted if the dose has been stable for…