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Astria Therapeutics (ATXS) investor relations material

Astria Therapeutics Corporate Presentation summary

Complete event summary combining all related documents: earnings call transcript, report, and slide presentation.
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Corporate Presentation summary17 Sep, 2025

Strategic vision and pipeline

  • Focus on developing therapies for hereditary angioedema (HAE) and atopic dermatitis (AD) using half-life extended monoclonal antibodies targeting plasma kallikrein and OX40, respectively.

  • Pipeline includes navenibart for HAE and STAR-0310 for AD, both advancing through clinical development with multiple upcoming milestones.

  • Navenibart aims to offer Q3M (every 3 months) and Q6M (every 6 months) dosing options to improve patient convenience and market adoption.

  • STAR-0310 is positioned as a potential best-in-class OX40 therapy with broad immunomodulatory effects and a long half-life.

  • Vision to become a leading allergy and immunology company by delivering life-changing therapies.

Clinical development and efficacy data

  • Navenibart demonstrated 91-95% attack rate reduction in Phase 1b/2 trials, with consistent efficacy and favorable safety in long-term follow-up.

  • Phase 3 ALPHA-ORBIT and ORBIT-EXPANSE trials are designed to support global registration, with topline data expected in early 2027.

  • STAR-0310 Phase 1a data show broad and durable suppression of Type 1, 2, and 3 inflammation, with no serious adverse events or dose-limiting side effects.

  • STAR-0310 exhibits a best-in-class 68-day half-life, supporting potential for every-six-month dosing.

  • Both programs have shown rapid enrollment and strong engagement from patient communities.

Market opportunity and commercial strategy

  • HAE market projected to grow from $3.2B in 2024 to $5.4B by 2030, driven by earlier diagnosis and improved therapies.

  • Navenibart's flexible dosing is anticipated to increase market share, with significant interest from both new and switching patients.

  • AD market expected to reach $22B in the US by 2030, with large opportunities for therapies targeting inadequately controlled patients.

  • STAR-0310 aims to capture share from both current standard-of-care and patients not controlled by existing biologics.

  • Commercial strategy leverages differentiated efficacy, safety, and dosing convenience to drive adoption.

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Q3 202512 Nov, 2025
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Frequently asked questions

Astria Therapeutics Inc., formerly known as Catabasis Pharmaceuticals, Inc., is a biopharmaceutical company dedicated to the discovery, development, and commercialization of therapeutics for rare and niche allergic and immunological diseases. The company's lead product candidate is STAR-0215, a monoclonal antibody inhibitor of plasma kallikrein. Astria Therapeutics is headquartered in Boston, Massachusetts, and its shares are listed on the Nasdaq.

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