Biohaven Pharmaceutical Holding Company Ltd., a clinical-stage biopharmaceutical company, develops late-stage products candidates targeting neurological diseases and rare disorders in the United States. Its clinical stage products include Rimegepant, a product that has completed phase III trials for acute treatment and prevention of migraine; Vazegepant that has completed Phase 2/3 trial for acute treatment and prevention of migraine; and Troriluzole that has completed II/III randomization phase and is ongoing extension trial for ataxias. The company also offers Troriluzole that is in phase II/III clinical stage for obsessive compulsive disorders and Alzheimer diseases; BHV-0223, a product for amyotrophic lateral sclerosis; BHV-5000, a product that has completed phase I clinical trial for neuropsychiatric disorders; and Verdiperstat, a product that is in phase III trial for multiple system atrophy. Biohaven Pharmaceutical Holding Company Ltd. has a collaboration agreement with Cove to facilitate telemedicine evaluation for migraine sufferers. The company was founded in 2013 and is headquartered in New Haven, Connecticut.