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.

Ranibizumab Biosimilar Program Updates

This week, three development programs announced updates to their ranibizumab biosimilars. Ranibizumab is the active ingredient in Genentech’s LUCENTIS, which is indicated for retinal vascular disorders, including neovascular (wet) age-related macular degeneration (AMD). On June 25, 2021, Samsung Bioepis Co., Ltd. (“Samsung Bioepis”) and Biogen Inc. (“Biogen”) announced that the…

Read More

Amneal Announces FDA Acceptance of aBLA for Bevacizumab

Amneal Pharmaceuticals, Inc., a fully integrated pharmaceutical company headquartered in Bridgewater, NJ, announced last week that the U.S. FDA has accepted its aBLA seeking approval of a biosimilar of Avastin® (bevacizumab).  This biosimilar was developed in collaboration with Spain-based biopharmaceutical company mAbxience, which had obtained approval earlier this year to…

Read More

Amgen v. Hospira Pegfilgrastim Case Stayed Pending Potential Summary Judgment Practice

On June 16, 2021, the District Court for the District of Delaware issued a claim construction order construing a key term in the ongoing patent dispute between Amgen and Hospira over Hospira’s proposed biosimilar of Amgen’s Neulasta® (pegfilgrastim).  In the Order, the Court construed the term “between about 0.1 M…

Read More

Lupin Announces FDA Acceptance of aBLA for Pegfilgrastim Biosimilar

Global pharmaceutical company Lupin Limited recently announced that the U.S. FDA has accepted its aBLA for a proposed pegfilgrastim biosimilar (reference product Neulasta®).  Lupin reported that the aBLA submission was supported by similarity data from analytical, pharmacokinetic, pharmacodynamic and immunogenicity studies.  Company CEO Vinita Gupta commented, “FDA’s acceptance of our…

Read More

Merck Completes Organon Spinoff

As we previously reported, earlier this year Merck announced that it would be spinning off its women’s health, biosimilars, and established brands businesses into a standalone company.   This month, Merck completed the spinoff, creating Organon.  Organon’s portfolio contains about 60 treatments and products, and mainly focuses on ex-US markets.  Organon…

Read More

Celltrion Shares Recent Biosimilar Development News

Celltrion Healthcare announced last week that it received positive results from the Phase III trial of its high-concentration, low-volume, citrate-free adalimumab biosimilar, CT-P17 or Yuflyma™, in patients with active rheumatoid arthritis (RA).  According to the press release, “[r]esults demonstrated comparable efficacy in terms of ACR20/50/70 response rates, both in patients…

Read More