Shares of Athira Pharma, Inc. (ATHA) plunged 72.2% in after-hours trading on Sep 3 after the company announced disappointing top-line data from the phase II/III LIFT-AD study evaluating its pipeline candidate, fosgonimeton, for the treatment of mild-to-moderate Alzheimer’s disease (AD).The LIFT-AD study investigated once-daily fosgonimeton (40 mg) subcutaneous injection versus placebo over a treatment period of 26 weeks in mild-to-moderate AD patients.The study did not meet the primary endpoint which was th ...