SPRINGBOARD: Extended-release Intra-articular Corticosteroid Injection in Knee OA A phase 2 trial of EP-104IAR (long-acting, fluticasone propionate) has shown 14 weeks of clinically meaningful pain relief in knee osteoarthritis (OA). This intra-articular formulation is… https://t.co/IjlEDMmzzH https://t.co/Ly40yQgZ8e