Welcome to the Big Molecule Watch!

ENGLISH | 中文

Goodwin’s award-winning Big Molecule Watch is the best resource for daily updates and analyses of regulatory issues, litigation, legislation, and other news in the world of biologics, biosimilars and related technologies. The editors of this blog have collectively been watching and engaging with the world of biologics and biosimilars (“big molecules”) since before the inception of the biosimilar industry in the U.S.  With extensive experience representing clients at all stages of a biologic’s or biosimilar’s lifecycle, from research and development, to patents, to regulatory application and approval, and through litigation and appeals, we are excited to share our observations and insights as the industry and the law continues to develop in this exciting area.

This blog focuses on “big molecules” as opposed to “small molecules.” Small molecule drugs have low molecular weight, a simple and well-defined structure, and are chemically synthesized. In contrast, “big molecule” drugs have high molecular weight, complex structures, and are derived from living organisms. For example, aspirin is small molecule while a monoclonal antibody is a big molecule. For further reading on big molecules, consider FDA's resources on biologics.

Celltrion USA Announces Submission of BLA for Subcutaneous Infliximab Biosimilar 

On December 22, 2022, Celltrion USA announced that it submitted a Biologics License Application (BLA) for a subcutaneous formulation of infliximab, CT-P13, to the U.S. Food and Drug Administration (FDA).  According to Celltrion, the BLA is based on phase III pivotal data that evaluated the efficacy and safety of CT-P13 as a…

Read More

BPCIA Aflibercept Litigation:  Regeneron Files 12(c) Motion to Dismiss Mylan’s Counterclaim for Inequitable Conduct

On Friday, December 16, 2022, Regeneron moved to dismiss Mylan’s inequitable conduct defense and counterclaim against two of the six patents asserted in the parties’ BPCIA suit concerning Mylan’s proposed biosimilar to EYLEA.  As previously reported, Regeneron narrowed the twenty-four patents originally asserted against Mylan to six following the Northern…

Read More

Now Available! Updated Goodwin’s Guide to Biosimilars Litigation and Regulation in the U.S., 2022-2023

As regular Big Molecule Watch readers know, the Biologics Price Competition and Innovation Act (“BPCIA”) was signed into law as part of the Affordable Care Act on March 23, 2010, creating an abbreviated licensure pathway for “biosimilar” and “interchangeable” biological products. The BPCIA also introduced a new scheme to resolve…

Read More

FDA Accepts Biogen’s aBLA for Tocilizumab

On December 9, 2022, Biogen announced that the FDA has accepted for review an aBLA for BIIB800, Biogen’s tocilizumab biosimilar candidate.  BIIB800 references Genetech’s ACTEMRA product, which is an anti-interleukin-6 receptor monoclonal antibody indicated for moderate to severe rheumatoid arthritis in adults as well as juvenile idiopathic polyarthritis and systemic…

Read More

Fresenius Kabi Announces FDA Approval of Adalimumab Biosimilar

Earlier today, Fresenius Kabi announced that the U.S. Food and Drug Administration (FDA) approved IDACIO (adalimumab-aacf), a biosimilar referencing HUMIRA.  IDACIO is approved for use in the treatment of chronic autoimmune diseases for all eligible indications of the reference product and, according to Fresenius, is expected to launch in the…

Read More

BPCIA Aflibercept Litigation: Mylan Seeks Leave to Add a Declaratory Judgment Counterclaim of No Lost Profits or Injunctive Relief

As we previously reported, the Northern District of West Virginia ordered an expedited trial in Regeneron’s aflibercept BPCIA case against Mylan.  Regeneron had asserted 24 patents in its complaint.  As required by the court’s scheduling order, on October 28, Regeneron identified six patents for the first phase of the litigation. …

Read More

Regeneron Files Expedited Motion Challenging Mylan’s Designation of Entire aBLA Production as Outside Counsel’s Eyes Only

On Tuesday, December 6, Regeneron filed an expedited motion to compel Mylan’s compliance with the protective order in the parties’ BPCIA litigation concerning Mylan’s proposed aflibercept biosimilar of EYLEA.  Regeneron alleges that Mylan has improperly “designated the entire 1,000,000+ pages of its biosimilar application and regulatory file as ‘Outside Counsel’s…

Read More

Alvotech Broadens Access to HUMIRA (adalimumab) Biosimilars

Alvotech announced yesterday the launch of HUKYNDRA, a high-concentration, low-volume, citrate-free biosimilar to HUMIRA (adalimumab), in Belgium, Bulgaria, Croatia, Czech Republic, Latvia, Romania, and Slovenia.  Through a strategic partnership with STADA, Alvotech supplies HUKYNDRA (adalimumab) autoinjectors and pre-filled syringes with drug product and drug substance manufactured in its vertically integrated…

Read More

Biocon Biologics Confirms Completion of Multi-Billion Dollar Acquisition of Viatris’ Global Biosimilars Business

As we previously reported, Biocon Biologics Ltd. (a subsidiary of Biocon Ltd.) announced its intent to acquire the global biosimilars business of its long-term partner Viatris, Inc. This week, Biocon confirmed completion of its acquisition in a part-cash/part-equity transaction. Under the terms of this USD $3.335 billion deal, Biocon paid…

Read More