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Celltrion Submits BLA for Interchangeable Omalizumab (Xolair®) Biosimilar

Mar 11, 2024

Celltrion announced that it has submitted an abbreviated Biologics License Application (A-BLA) in the US for approval of CT-P39, as interchangeable biosimilar to Genentech’s Xolair® (omalizumab).  Celltrion’s application seeks approval for all Xolair® indications, as well as interchangeability status.

Celltrion submitted applications for CT-P39 in Europe in April 2023, Canada in December 2023 and Korea in June 2023.   Celltrion’s is the first reported regulatory submission for omalizumab biosimilars in these jurisdictions.   CuraTeQ Biologics (a subsidiary of Aurobindo), Alvotech/Kashiv Biosciences, Teva, Synermore, Glenmark and Sorrento have also been reported to be developing omalizumab biosimilars.