FDA Approves Zymfentra as Maintenance Therapy

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FDA has approved a Celltrion BLA for Zymfentra (infliximab-dyyb) for maintenance therapy in adults with moderately to severely active ulcerative colitis (UC) and Crohn’s disease (CD) following treatment with an infliximab product administered intravenously. Zymfentra is a subcutaneous version of Celltrion’s infliximab (Janssen’s Remicade) biosimilar, which works to block the action of tumor necrosis factor-alpha, a protein that can be overproduced in response to certain diseases and cause the immune system to attack the body’s healthy parts, Celltrion says.

Zymfentra’s approval is based on Phase 3 data that demonstrated superiority in the primary endpoints of clinical remission (UC and CD) and endoscopic response (CD) compared to placebo as maintenance therapy after induction therapy of intravenous formulation of infliximab over a 54-week period, the company says. “The overall safety profile of Zymfentra was similar to that of placebo during maintenance period in both studies with no new safety signals seen,” it says.

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