 BOSTON--BUSINESS WIRE--- KRTX--Karuna Therapeutics, Inc. NASDAQ: KRTX, an innovative clinical-stage biopharmaceutical company committed to developing novel therapies with the potential to transform the lives of people with disabling and potentially fatal neuropsychiatric disorders, today announced the appointment of David Wheadon, M.D., to its Board of Directors. In addition, the Company announced that Ed Harrigan, M.D., will step down from the Board of Directors effective December 3, 2020. Dr. Har 