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PharmGKB · ClinPGx

In Progress: Avatrombopag Pathway, Pharmacokinetics

PA166412101 Last updated July 2025 Caroline F. Thorn
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In Progress: Avatrombopag Pathway, Pharmacokinetics pathway diagram
In Progress: Avatrombopag Pathway, Pharmacokinetics — pathway diagram from PharmGKB / ClinPGx
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About this pathway

The major metabolite of avatrombopag is a 4‐hydroxy derivative 4-(decarboxy)-4-hydroxy-avatrombopag detected in feces and approximately 44% of administered dose [Article:29341245]. CYP2C9 and CYP3A4 contribute equally to form the 4‐hydroxy metabolite [Article:29341245]. While CYP2C9 polymorphisms have been shown to impact avatrombopag PK, they did not significantly affect platelet levels in healthy volunteers, although more studies are needed in patients {PMID:28339166, 29341245, 40573298]. ABCB1 is involved in the transport of avatrombopag [Article:40573298].

Reactions & interactions (5)

  • Biochemical Reaction
    avatrombopag 4-(decarboxy)-4-hydroxy-avatrombopag
  • Catalysis
    ABCB1 Transport
  • Catalysis
    CYP2C9 Biochemical Reaction
  • Catalysis
    CYP3A4 Biochemical Reaction
  • Transport
    avatrombopag avatrombopag

Edit history (1)

  • 2025-07-02 Create
In Progress: Avatrombopag Pathway, Pharmacokinetics pathway diagram (enlarged)