US FDA approval for Shire PLC’s Takhzyro as a subcutaneous prophylactic for attacks of hereditary angioedema should position the company to begin winning back market share lost to CSL Behring’s prophylactic agent Haegarda. Analysts predict rapidly ramping sales for Takhzyro, reaching blockbuster totals in just a few years.
Unlike Haegarda, which inhibits HAE patients’ C1 esterase levels, Takhzyro (lanadelumab-flyo) is a kallikrein-inhibiting monoclonal antibody. It is the first...







