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Deuruxolitinib - Sun Pharmaceutical Industries

Drug Profile

Deuruxolitinib - Sun Pharmaceutical Industries

Alternative Names: C-21543 phosphate; CTP-543; CTP-543 phosphate; D8- ruxolitinib phosphate; D8-ruxolitinib; Deuruxolitinib phosphate; Deuterated ruxolitinib; Deuterium ruxolitinib analogue; LEQSELVI; Ruxolitinib deuterated - Concert Pharmaceuticals

Latest Information Update: 18 Mar 2026

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At a glance

  • Originator Concert Pharmaceuticals
  • Class 2 ring heterocyclic compounds; Cyclopentanes; Nitriles; Organic deuterium compounds; Pyrazoles; Pyrimidines; Pyrroles; Skin disorder therapies; Small molecules
  • Mechanism of Action Janus kinase 1 inhibitors; Janus kinase 2 inhibitors; TYK2 kinase inhibitors
  • Orphan Drug Status

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

    No
  • New Molecular Entity Yes

Highest Development Phases

  • Marketed Alopecia areata

Most Recent Events

  • 10 Mar 2026 Preregistration for Alopecia areata in United Kingdom (PO) before March 2026
  • 10 Mar 2026 Registered for Alopecia areata in United Kingdom (PO) via International Recognition Procedure
  • 26 Feb 2026 Preregistration for Alopecia areata in European Union (PO) before February 2026

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