Sanofi stock slumps after two setbacks on multiple-sclerosis drug

Core Viewpoint - Shares of Sanofi experienced a decline following the announcement that the U.S. regulatory review of its multiple-sclerosis drug will not be completed by the end of the year [1] Group 1: Company Updates - Sanofi's multiple-sclerosis drug is facing delays in the U.S. regulatory review process, which is now expected to extend beyond the end of the year [1] - The company also indicated that a trial for a different form of treatment is ongoing, but specific details were not provided [1]