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Fostamatinib - Rigel Pharmaceuticals

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Drug Profile

Fostamatinib - Rigel Pharmaceuticals

Alternative Names: FosD; Fostamatinib disodium; Fostamatinib disodium hexahydrate; Fostamatinib sodium; R 985788; R-406/788; R-788; R-935/788; R788 sodium; R935788 sodium; Tamatinib fosdium; TAVALISSE; Tavalisse; TAVLESSE

Latest Information Update: 27 May 2025

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At a glance

  • Originator Rigel Pharmaceuticals
  • Developer AstraZeneca; Duke University Medical Center; Grifols; JW Pharmaceutical; Kissei Pharmaceutical; Knight Therapeutics; National Heart, Lung and Blood Institute; Rigel Pharmaceuticals; Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins; Vanderbilt University Medical Center
  • Class Anti-inflammatories; Antianaemics; Antihyperglycaemics; Antineoplastics; Antirheumatics; Oxazines; Phosphoric acid esters; Pyridines; Pyrimidines; Small molecules
  • Mechanism of Action Syk kinase inhibitors
  • Orphan Drug Status

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

    Yes - Idiopathic thrombocytopenic purpura; Autoimmune haemolytic anaemia
  • New Molecular Entity Yes

Highest Development Phases

  • Marketed Idiopathic thrombocytopenic purpura
  • Preregistration COVID 2019 infections
  • Phase III Autoimmune haemolytic anaemia
  • Phase II/III COVID-19 pneumonia
  • No development reported Graft-versus-host disease; Ovarian cancer; Waldenstrom's macroglobulinaemia
  • Discontinued Chronic lymphocytic leukaemia; Diffuse large B cell lymphoma; IgA nephropathy; Rheumatoid arthritis; Solid tumours; Systemic lupus erythematosus; T-cell lymphoma; Type 1 diabetes mellitus

Most Recent Events

  • 31 Mar 2025 Preregistration for Idiopathic thrombocytopenic purpura (Treatment-experienced) in Argentina (PO)
  • 27 Mar 2025 Rigel Pharmaceuticals resolves patent litigation against Annora Pharma over ANDA submission in US
  • 21 Jan 2025 Registered for Idiopathic thrombocytopenic purpura (Treatment-experienced, In adults) in South Korea (PO)

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