NewslettersImmune Regulation NewsIntestinal Cell NewsCelltrion USA Announces FDA Approval of ZYMFENTRA® for the Treatment of People with Inflammatory Bowel DiseaseBy Laurisa Dohm - November 3, 20230276ZYMFENTRA® for maintenance therapy in adults with moderately to severely active ulcerative colitis and Crohn’s disease following treatment with an infliximab product administered intravenously.[BioSpace (Celltrion USA)]Press Release