AnaptysBio: Positive RA Data Bodes Well For Continued Rosnilimab Advancement

  • AnaptysBio, Inc.'s rosnilimab showed strong phase 2b results in moderate-to-severe RA, achieving key efficacy and safety endpoints, supporting its potential in a $20B U.S. market. Rosnilimab is also being evaluated in a phase 2 trial for moderate-to-severe ulcerative colitis, targeting a $15.8B global market, with data expected in Q4 2025. ANAB has sufficient cash for at least 12 months but may need to raise additional funds, potentially via an existing $100M ATM agreement.