Biotechnology US clinical-stage biotech firm Karuna Therapeutics saw its shares leap more than 40% to $197.50 pre-market today, as it announced positive top-line results from its Phase III EMERGENT-2 trial evaluating the efficacy, safety, and tolerability of KarXT (xanomeline-trospium), an oral investigational M1/M4-preferring muscarinic agonist, in adults with schizophrenia. 8 August 2022