08:55 AM EDT, 09/04/2024 (MT Newswires) -- Health care stocks were flat to lower premarket Wednesday as the Health Care Select Sector SPDR Fund (XLV) was inactive and the iShares Biotechnology ETF (IBB) was down 0.5% recently.

Athira Pharma ( ATHA ) shares tumbled by over 72% after it reported that its phase 2/3 trial of fosgonimeton in patients with mild-to-moderate Alzheimer's disease failed to achieve the primary and main secondary endpoints.