Legislation codifies FDA’s science-based approach to biosimilar review by limiting comparative efficacy studies
WASHINGTON (July 15, 2026) — The Biosimilars Council and the Association for Accessible Medicines today applauded legislation, the Expedited Access to Biosimilars Act, introduced this week in the U.S. House of Representative by Congressman Nick Langworthy (NY-23) and Congresswoman Kim Schrier, M.D. (WA-08), to codify FDA’s science-based approach to biosimilar review by limiting comparative efficacy studies. AAM and the Biosimilars Council have long advocated for a more efficient, science-based biosimilar development pathway that reduces unnecessary development costs and risks, encourages continued investment in biosimilars, and expands patient access to lower-cost medicines.
“Clinical efficacy studies are not the most effective way to provide the FDA with comparative data between biosimilars and their reference biologics when more robust and more effective analytical, functional, and pharmacokinetic methodologies can provide these data,” said Alex Keeton, Executive Director of the Biosimilars Council.
The Biosimilars Council and AAM have long supported eliminating unnecessary comparative clinical efficacy studies. Doing so will reduce unnecessary development costs and risks while encouraging greater biosimilar competition. Clinical efficacy studies should be the exception rather than a generally applied rule and explain the limited circumstances in which they might be scientifically justified.
The Expedited Access to Biosimilars Act will codify FDA’s guidance into law to ensure that the approval process is updated, safe, and predictable.
“Too often legacy regulations persist well beyond their usefulness,” said John Murphy III, President and CEO of AAM. “Outdated and less effective clinical studies waste time, slow approvals, and ultimately cost American patients more money. We are greatly thankful to Representatives Langworthy and Schrier for their leadership on this issue and their focus on cutting costs for patients, and the FDA for their continued and persistent work on this issue.”
U.S. Generic & Biosimilar Medicines Savings Report
Media contact: media@accessiblemeds.org
About AAM
The Association for Accessible Medicines, your generics and biosimilars industry, is driven by the belief that access to safe, quality, effective medicine has a tremendous impact on a person’s life and the world around them. AAM represents the manufacturers of finished generic pharmaceuticals and biosimilars, manufacturers of bulk pharmaceutical chemicals, and suppliers of other goods and services to the generic industry. Generic pharmaceuticals are 90 percent of prescriptions dispensed in the U.S. but only 12 percent of total drug spending.
About the Biosimilars Council
The Biosimilars Council, a division of the Association for Accessible Medicines, works to ensure a positive environment for patient access to biosimilar medicines. The Biosimilars Council is the leading source for information about the safety and efficacy of more affordable alternatives to costly brand biologic medicines. Areas of focus include public and health expert education, government affairs, legal affairs, and regulatory policy. More information is available at www.biosimilarscouncil.org.
