Pfizer Inc., announced that the U.S. FDA has approved ZAVZPRET (zavegepant), the first and only calcitonin gene-related peptide (CGRP) receptor antagonist nasal spray for the acute treatment of migraine with or without aura in adults. The FDA approval is based on two randomized, double-blind, placebo-controlled studies that established the efficacy, tolerability and safety profiles of ZAVZPRET for the acute treatment of migraine. In these studies, ZAVZPRET was statistically superior to placeb...