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AC Immune Doses First Participant in Phase 1 Trial of NLRP3 Inhibitor ACI-19764

Story Highlights
  • AC Immune has begun a Phase 1 trial of ACI-19764, its oral NLRP3 inhibitor, dosing the first participant on February 24, 2026.
  • The European Phase 1 study will test safety, PK and target engagement, building on strong preclinical data that support ACI-19764’s best-in-class potential.
  • Looking for the best stocks to buy? Follow the recommendations of top-performing analysts.
AC Immune Doses First Participant in Phase 1 Trial of NLRP3 Inhibitor ACI-19764

Meet Samuel – Your Personal Investing Prophet

The latest announcement is out from AC Immune SA ( (ACIU) ).

On February 24, 2026, AC Immune SA reported that it has dosed the first participant in a Phase 1 clinical trial of ACI-19764, an orally administered, highly brain-penetrant small molecule inhibitor of the NLRP3 inflammasome. The candidate is positioned as an important extension of the company’s small-molecule pipeline, aimed at addressing chronic inflammation implicated in metabolic disorders and neurodegenerative conditions such as Alzheimer’s, Parkinson’s, ALS and frontotemporal dementia.

The Phase 1 study in healthy volunteers in Europe will assess safety, tolerability, pharmacokinetics and pharmacodynamics through single and multiple ascending doses, with initial data expected in the second half of 2026. Preclinical results showed strong potency, brain penetration, and promising effects on neuroinflammation and weight control, potentially placing ACI-19764 among the more competitive NLRP3 inhibitors for central nervous system and metabolic indications and underscoring AC Immune’s push to broaden its clinical portfolio.

The most recent analyst rating on (ACIU) stock is a Hold with a $3.00 price target. To see the full list of analyst forecasts on AC Immune SA stock, see the ACIU Stock Forecast page.

Spark’s Take on ACIU Stock

According to Spark, TipRanks’ AI Analyst, ACIU is a Neutral.

The score is held down primarily by weak financial performance (sharp TTM revenue decline, persistent losses, and renewed cash burn) and a loss-making valuation profile (negative P/E, no dividend yield). These are partially offset by a solid balance-sheet leverage position and supportive technicals with price above key moving averages and positive MACD.

To see Spark’s full report on ACIU stock, click here.

More about AC Immune SA

AC Immune SA is a clinical-stage biopharmaceutical company focused on precision prevention and treatment of neurodegenerative diseases, including Alzheimer’s, Parkinson’s and rare NeuroOrphan indications linked to misfolded proteins. It leverages its SupraAntigen and Morphomer technology platforms to develop first- and best-in-class therapeutic and diagnostic candidates, supported by partnerships with major pharmaceutical groups that provide significant non-dilutive funding and milestone potential.

Average Trading Volume: 716,416

Technical Sentiment Signal: Strong Sell

Current Market Cap: $259.2M

For an in-depth examination of ACIU stock, go to TipRanks’ Overview page.

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