Biohaven migraine drug partnered with Pfizer lands twin European approvals April 27, 2022 Auto Bot Biohaven Pharmaceuticals, BioPharma, biopharma nl, Clinical Trials, Connecticut, European Commission, Legal, Migraine, New Haven, Nurtec, Pfizer, Pharma 0 The European Commission approved Biohaven Pharmaceuticals migraine drug rimegepant. While the regulatory decision marks another milestone for Biohaven, it’s also a win for Pfizer, which holds rights to commercialize the drug outside of the U.S.