In the August 24, 2015, Federal Register, FDA announced that an applicant for a proposed biosimilar product had notified FDA that a patent infringement action has been filed in connection with the applicant's BLA. FDA received notice of the following complaint: Janssen Biotech, Inc., et. al. v. Celltrion Healthcare Co., Ltd., et al., 15–cv–10698 (D. Mass., filed March 6, 2015).

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