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Etrasimod - Pfizer

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Drug Profile

Etrasimod - Pfizer

Alternative Names: APD-334; Etrasimod arginine - Pfizer; Etrasimod L-arginine; PF-07915503; VELSIPITY; Verespiti

Latest Information Update: 13 Feb 2026

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At a glance

  • Originator Arena Pharmaceuticals
  • Developer Arena Pharmaceuticals; Everest Medicines; Pfizer
  • Class 3-ring heterocyclic compounds; Acetic acids; Amino acids; Anti-inflammatories; Benzene derivatives; Cyclopentanes; Ethers; Fluorinated hydrocarbons; Indoles; Skin disorder therapies; Small molecules
  • Mechanism of Action Sphingosine 1 phosphate receptor modulators
  • Orphan Drug Status

    Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.

    Yes - Eosinophilic oesophagitis
  • New Molecular Entity Yes

Highest Development Phases

  • Marketed Ulcerative colitis
  • Phase II/III Atopic dermatitis
  • Phase II Eosinophilic oesophagitis
  • Discontinued Alopecia areata; Crohn's disease; Inflammatory bowel diseases; Primary biliary cirrhosis; Pyoderma gangrenosum

Most Recent Events

  • 06 Feb 2026 Registered for Ulcerative colitis in China (PO)
  • 30 Jan 2026 Launched for Ulcerative colitis (In adolescents, In the elderly, In adults) in United Kingdom (PO)
  • 30 Jan 2026 Launched for Ulcerative colitis (In adults, In adolescents, In the elderly, Treatment-resistant) in Norway (PO)

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