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Sebetralstat is a new oral plasma kallikrein inhibitor approved for treating acute hereditary angioedema (HAE) attacks. This marks a significant advancement in HAE management for patients aged 12 and older.

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Area of Science:

  • Pharmacology
  • Immunology
  • Medical Affairs

Background:

  • Hereditary angioedema (HAE) is a rare genetic disorder characterized by recurrent episodes of severe swelling.
  • Acute attacks of HAE significantly impact patients' quality of life and can be life-threatening.
  • Current treatment options for HAE attacks include both on-demand and prophylactic therapies.

Purpose of the Study:

  • To summarize the key development milestones of sebetralstat.
  • To highlight the regulatory approvals and positive opinions for sebetralstat in HAE treatment.
  • To provide an overview of sebetralstat's journey to market.

Main Methods:

  • Review of clinical trial data and regulatory submissions for sebetralstat.
  • Analysis of key development phases and strategic decisions by KalVista Pharmaceuticals.
  • Compilation of information on global regulatory milestones and approvals.

Main Results:

  • Sebetralstat, an oral plasma kallikrein inhibitor, has achieved significant regulatory milestones.
  • First approval in the USA on July 7, 2025, for acute HAE attacks in patients aged 12+.
  • Subsequent approvals in the UK and a positive opinion in the EU for HAE attack treatment.

Conclusions:

  • Sebetralstat represents a novel, orally available on-demand treatment for HAE attacks.
  • The drug's development and approval signify a major advancement in managing HAE.
  • Availability of sebetralstat is expected to improve patient outcomes and treatment accessibility for HAE.