ICYMI: Introducing Polyrefractory RA: A New Frontier in Difficult-to-Treat RA At a EULAR 2025 session titled “What makes ‘Difficult-to-treat RA’ so difficult to treat? And what can we do?”, Drs. Paula David and Dennis McGonagle introduced the emerging concept of polyrefractory https://t.co/Qy9fy3GWKm