ACADIA Pharmaceuticals Inc. Stock News

Shares of Acadia Pharmaceuticals (NASDAQ:ACAD) fell more than 9% Thursday morning after the company reported mixed Phase 2 results for remlifanserin, its experimental treatment for Alzheimer's disease psychosis.  The once-daily 60 mg dose eased hallucinations and delusions more than placebo on the trial's main measure, but the result fell just short of statistical significance at six weeks.

Acadia stock tumbled Thursday after the company's experimental Alzheimer's disease psychosis treatment missed the mark in a Phase 2 study.

Acadia Pharmaceuticals said on Thursday its experimental drug for psychosis associated with Alzheimer's missed the main goal of ​a mid-stage study testing whether it could reduce hallucinations ‌and delusions in patients with the condition.

SAN DIEGO--(BUSINESS WIRE)--Acadia Pharmaceuticals Inc. (Nasdaq: ACAD) today announced Phase 3 enabling topline results from the Phase 2 portion of the ongoing RADIANT clinical trial program evaluating remlifanserin for the treatment of hallucinations and delusions associated with Alzheimer's disease psychosis (ADP). For the primary endpoint of change from baseline in the Scale for the Assessme...

SAN DIEGO--(BUSINESS WIRE)--Acadia Pharmaceuticals Inc. (Nasdaq: ACAD) today announced that the European Commission (EC) has granted marketing authorization for DAYBU (trofinetide) for the treatment of neurobehavioral symptoms of Rett syndrome in adults and pediatric patients aged five years and older, making it the first and only treatment approved for Rett syndrome in the European Union (EU)....

SAN DIEGO--(BUSINESS WIRE)--Acadia Pharmaceuticals Inc. (Nasdaq: ACAD), today announced its financial results for the second quarter ended June 30, 2026. “Acadia delivered an outstanding second quarter, highlighted by strong commercial execution across both DAYBUE and NUPLAZID, resulting in total revenue growth of 17% year-over-year on an adjusted basis,” said Catherine Owen Adams, Chief Execut...

SAN DIEGO--(BUSINESS WIRE)--Acadia Pharmaceuticals Inc. (Nasdaq: ACAD) today announced that it will participate in a fireside chat at Canaccord Genuity 46th Annual Growth Conference on Wednesday, August 12, 2026 at 1:30 p.m. Eastern Time. Live webcasts will be accessible on the company's website, acadia.com, under the investors section and an archived recording will be available on the website ...