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Celltrion resubmits aBLA to FDA for proposed Trastuzumab biosimilar

South Korea-based Celltrion said that it has completed a re-submission to the US Food and Drug Administration (FDA) seeking approval for CT-P6, a proposed mAb biosimilar to cancer drug Herceptin (trastuzumab).

Celltrion submitted its abbreviated Biologics License Applications (aBLAs) for CT-P10 and CT-P6 to the FDA in April and May of last year, respectively. However, it received CRLs (complete response letters) from the FDA related to the warning letter issued by the FDA in January 2018, related to the manufacturing facility in Incheon, South Korea.

Celltrion had completed the resubmission for the approval of CT-P10, a proposed biosimilar to Rituxan (rituximab) last month. In accordance with FDA regulations, the approval procedure will be usually finalized within six months from the resubmission, so Celltrion expects the approval for the U.S. market of the two proposed biosimilars within this calendar year.

FDA has notified Celltrion of its re-inspection schedule regarding regular audit results, and separately from this procedure, it has confirmed the resumption of the review procedure for the two proposed biosimilars upon the resubmission of the aBLAs.

Celltrion and Teva Pharmaceutical Industries, Ltd. entered into an exclusive partnership to commercialize CT-P10 and CT-P6 in the U.S. and Canada in October 2016.

As part of the agreement, Teva is responsible for all commercial activities in the U.S. and Canada, pending regulatory approvals for both products. Celltrion is responsible for completing all clinical developments and regulatory activities.

Source: Company Press Release