Billion-Dollar Molecules: Avacopan (Tavneos), a First-in-Class C5aR Antagonist Acquired by Amgen

Amgen has acquired ChemoCentryx in a deal that includes lead molecule avacopan (Tavneos), a first-in-class orally bioavailable small molecule complement 5a receptor (C5aR) antagonist approved as an adjunctive treatment to standard of care therapy for adults with severe active anti-neutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis (AAV). In this article we review:

  • the details of the deal
  • the clinical context
  • why the drug and target matter

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