Addex Therapeutics: Addex Spin-Out Neurosterix Completes Phase 1 Clinical Studies of NTX-253 for Schizophrenia

Addex Therapeutics (ADXN) announced its spin-out, Neurosterix, completed Phase 1 trials for NTX-253, a schizophrenia treatment. Neurosterix plans to advance NTX-253 to Phase 2. Addex holds a 20% stake in Neurosterix, which raised $65M in Series A funding. NTX-253 is a positive allosteric modulator of the muscarinic M4 receptor, showing promising preclinical results.

Original reporting
Published Oct 8, 2026, 6:00 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 8, 2026, 6:13 AM 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 briefTechnology
Primary signal
$ADXN
Bullish
high confidence
Mentioned
$ADXN
Relevance
8/10
AlphAI data visualization · based on finanznachrichten.de
Decision brief

The 30-second read

$ADXNBullishMed
01

Why it matters

The Phase 1 completion provides safety and PK data, clearing a key hurdle and setting the stage for Phase 2 enrollment.

02

Market read

First disclosure of Phase 1 success for NTX‑253, a potential schizophrenia therapy, likely to generate short‑term buying interest.

03

What to watch

Addex holds only a 20% stake in Neurosterix, limiting upside from the spin‑out's future valuation.

Relevance 8/10Novelty 8/10Timing: today

Background

Addex Therapeutics (NASDAQ: ADXN) is a clinical‑stage biotech focused on allosteric modulators for neurological disorders.

Company-level read

Ticker impact

$ADXNBullishHigh confidence
Context

Addex Therapeutics announced its spin‑out Neurosterix completed Phase 1 of NTX‑253 and will move to Phase 2, a fresh clinical milestone for the company.

Expected impact

likely upward pressure as investors price in the Phase 2 start

Evidence & confidence

Phase 1 completion is a material catalyst for a clinical‑stage biotech; market typically reacts positively to successful early‑stage data.

Market effects

May boost other neuro‑pharma stocks as investors reassess the M4 PAM pipeline.

Limited to Swiss and US biotech markets.

Modest; primarily relevant to biotech investors.

Counterpoint

Phase 1 success does not guarantee Phase 2 outcomes; risk of later trial failure could temper enthusiasm.

Key entities

  • Addex Therapeutics

    Parent biotech announcing the milestone.

  • Neurosterix

    Company conducting the NTX‑253 trial.

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