$ACAD

Acadia Pharmaceuticals Announces Phase 3 Enabling Topline Results from Phase 2 RADIANT Study of Remlifanserin for the Treatment of Alzheimer’s Disease…

ACADIA PHARMACEUTICALS INC (ACAD) filed an SEC Form 8-K — Regulation FD Disclosure. Exhibit 99.1 Acadia Pharmaceuticals Announces Phase 3 Enabling Topline Results from Phase 2 RADIANT Study of Remlifanserin for the Treatment of Alzheimer’s Disease Psychosis (ADP) — Meaningful and consistent efficacy trends across endpoints support continuing with Phase 3 develop

Original reporting
Published Sep 24, 2026, 9:11 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 24, 2026, 9:15 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefCorporate actions
Primary signal
$ACAD
Bullish
high confidence
Mentioned
$ACAD
Relevance
8/10
AlphAI data visualization · based on SEC EDGAR 8-K
Decision brief

The 30-second read

$ACADBullishMed
01

Why it matters

The data provide the first efficacy signal for remlifanserin, supporting continuation of Phase 3 and removal of the lower dose, which could improve the company’s valuation.

02

Market read

First‑report trial data are material for a biotech stock, likely prompting short‑term price movement and influencing sector sentiment.

03

What to watch

Potential competition from other 5‑HT2A antagonists and the need for larger Phase 3 enrollment.

Relevance 8/10Novelty 8/10Timing: pre‑market release at 8:00 a.m. ET

Background

Acadia Pharmaceuticals (NASDAQ: ACAD) announced Phase 2 results of its RADIANT program for remlifanserin, a novel 5‑HT2A inverse agonist targeting Alzheimer’s disease psychosis.

Company-level read

Ticker impact

$ACADBullishHigh confidence
Context

Acadia disclosed Phase 2 topline results for remlifanserin, showing a near‑significant primary endpoint and a significant secondary endpoint.

Expected impact

Potential short‑term upside of 5‑10% on the news, with longer‑term upside if Phase 3 confirms efficacy.

Evidence & confidence

Phase‑2 data are material for a biotech; the 60 mg dose showed efficacy trends and safety, prompting program refinement.

Market effects

Strengthens the Alzheimer’s disease psychosis therapeutic pipeline, may boost peer biotech sentiment.

U.S. biotech sector could see modest gains; limited impact outside the sector.

Limited to investors tracking neuro‑psychiatric drug development.

Counterpoint

The primary endpoint missed statistical significance; investors may remain cautious until Phase 3 data.

Key entities

  • Acadia Pharmaceuticals Inc.

    Developer of remlifanserin, listed on NASDAQ under ACAD.

  • Catherine Owen Adams

    CEO of Acadia, quoted on the trial results.

Related articles

$ACADMed

ACAD Downgraded by UBS -- Price Target Lowered to $23.00

UBS downgraded Acadia Pharmaceuticals (ACAD) from Buy to Neutral, lowering its price target from $49.00 to $23.00. The company's stock is currently trading at $18.62, with a GF Value™ of $25.90, suggesting it is 28.1% undervalued. Insider sales totaled $1,019,973 over the past three months, and the company has a GF Score™ of 79/100.

$ACADMedAI 8/10

RBC Capital reiterates Acadia Pharmaceuticals stock rating on patent developments

RBC Capital maintained its Outperform rating on Acadia Pharmaceuticals (NASDAQ:ACAD) with a $37.00 price target, citing attractive valuation and reduced risk around Nuplazid revenue. The stock trades at $20.08 with a P/E ratio of 9.09 and PEG ratio of 0.14. Analysts revised earnings upwards, but recent Phase 2 trial results missed primary endpoint, leading to adjusted price targets.

$ACADMedAI 8/10

ACAD Stock Tumbles Today: Analysts Weigh RADIANT Results, Cut Price Targets

Acadia Pharmaceuticals (ACAD) stock fell 5% after analysts cut price targets following Phase 2 RADIANT trial results for Remlifanserin in Alzheimer's disease psychosis. The trial missed the primary endpoint but showed promise in a subgroup. Analysts from Needham, Deutsche Bank, BMO Capital, and Citizens lowered targets but maintained positive ratings, citing future potential.

$ACADHighAI 8/10

ACADIA Pharmaceuticals (ACAD) Gets ‘Sell’ Rating on Weak Trial Results, Shares Fall 13%

ACADIA Pharmaceuticals (ACAD) shares fell 13% after Goldman Sachs initiated a 'sell' rating and $17 price target due to weak phase 2 trial results for remlifanserin. Citi and BMO Capital maintained positive ratings but lowered price targets. The company plans to present detailed results at an upcoming conference. Hedge funds increased holdings in Q2, with 38 funds holding positions.