Welcome to the Big Molecule Watch!

Big Molecule Watch will be posting updates and analyses on regulatory issues, litigation, legislation, and other news in the ever-developing world of biosimilars. The editors of this blog have collectively been watching and engaging with the world of biosimilars (“big molecules”) since before the inception of the biosimilar industry in the U.S., and we’re excited to share the observations of our active watch on this new forum.

If you’re looking for a primer on biologics, check out our background post introducing the world of biologics, biosimilars, and the Biologics Price Competition and Innovation Act (“BPCIA”).

We’ve also collected (and will continue to update) some reference documents that might be of interest to visitors of this blog—you can find them under the “Links” section to the right of this page.

USPTO Plans 25% Increase in AIA Review Fees

In a letter to the Patent Public Advisory Committee last week, U.S. Patent and Trademark Office Director Andrei Iancu proposed increasing the fees by “roughly 25%” for patent challenges under the America Invents Act, including inter partes review (IPR).  The letter states that the proposed increase is in response to a “variety…

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Bio-Thera Solutions Provides Regulatory and Clinical Development Updates for Proposed Biosimilars

Guangzhou-based biopharmaceutical company Bio-Thera Solutions recently announced that the China National Drug Administration has accepted for review the BLA for BAT1406, a proposed Humira® (adalimumab) biosimilar.  Bio-Thera states that the BAT1406 BLA contains clinical data from a pharmacokinetic/pharmacodynamic (PK/PD) trial and a Phase III confirmatory safety and efficacy study in…

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Biosimilar Clinical Trial Updates

Earlier this month, Clover Biopharmaceuticals, Celltrion, and JHL Biotech provided updates on their respective biosimilar clinical trials.  A summary of these developments is below. Clover Biopharmaceuticals announced the beginning of their Phase 1 trial of SCB-808, a proposed biosimilar to Enbrel (etanercept).  According to Clover, the trial is designed to…

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STADA Acquires Majority Stake in Epoetin Biosimilar Licensor BIOCEUTICALS

On August 6, 2018, STADA Arzneimittel AG (“STADA”) announced that it had acquired a majority stake in BIOCEUTICALS Arzneimittel AG (“BIOCEUTICALS”).  According to the press release, STADA is acquiring an additional 35.48 percent of the shares in BIOCEUTICALS  from its co-shareholders to bring its total stake to 51.34 percent.  BIOCEUTICALS…

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New BPCIA Complaint: Amgen Sues Apotex, Again, over Proposed Pegfilgrastim and Filgrastim Biosimilars

Amgen filed a complaint against Apotex today in the Middle District of Florida, alleging infringement of U.S. Patent No. 9,856,287 based on Apotex’s aBLAs for filgrastim and pegfilgrastim biosimilars. The ’287 patent issued on January 2, 2018 and is directed to methods of protein refolding in non-mammalian expression systems.  According to…

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IGBA Urges FDA to Waive the Requirement for Bridging Studies for Biosimilar Sponsors

In a letter to FDA last month, the International Generic and Biosimilar Medicines Association (IGBA), which represents member pharmaceutical companies from the USA, Canada, South Africa, India, Jordan, Japan, Europe and Taiwan, requested that FDA “revisit their position and waive the requirement of bridging studies.” Typically, biosimilar sponsors are required…

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