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S. 1954 119th Congress Senate

Biosimilar Red Tape Elimination Act

Official title: A bill to improve the requirements for making a determination of interchangeability of a biological product and its reference product.

Introduced: June 4, 2025 Introduced by: Mike Lee Republican · Utah See on congress.gov
Health Drug safety, medical device, and laboratory regulationGovernment information and archivesLicensing and registrationsPrescription drugs
 Everywhere this bill has been 3 steps
Introduced
In committee
Reported out
Passed House
Passed Senate
To President
Became law
Jun 17, 2026
Committee on Health, Education, Labor, and Pensions. Ordered to be reported with an amendment in the nature of a substitute favorably.
Jun 4, 2025
Read twice and referred to the Committee on Health, Education, Labor, and Pensions.
Jun 4, 2025
Introduced in Senate
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What's happening now June 17, 2026

Committee on Health, Education, Labor, and Pensions. Ordered to be reported with an amendment in the nature of a substitute favorably.

 Plain-English summary Congressional Research Service

Biosimilar Red Tape Elimination Act

This bill deems all biosimilars licensed by the Food and Drug Administration (FDA) interchangeable with their reference products.

A biosimilar is a biological product (e.g., a drug or vaccine) that is very similar to a brand-name biological product (i.e., the reference product). Under current law, a biosimilar that meets additional requirements may be deemed interchangeable with the reference product; this designation allows pharmacists to substitute the interchangeable biosimilar when filling a prescription for the reference product, depending on state law. Further, the first biosimilar deemed interchangeable with a given reference product is awarded a period of marketing exclusivity.

The bill eliminates additional requirements for demonstrating interchangeability so that all licensed biosimilars are deemed interchangeable with their reference products. (Draft guidance released by the FDA in 2024 proposed to make some of these interchangeability requirements optional, including studies related to the safety of switching between use of the biosimilar and reference product. It has not been finalized.)

This change takes effect 60 days after the bill is enacted, and previously licensed biosimilars must be deemed interchangeable with their reference products on that date. However, the bill preserves the exclusivity period for first interchangeable biosimilars licensed before the bill’s enactment. For example, if a new biosimilar licensed after the bill takes effect relies on the same reference product as an existing biosimilar that is subject to an unexpired exclusivity period, the new biosimilar is not deemed interchangeable with the reference product until the exclusivity period has ended.

 Hearings & markups 1
 Related & companion bills 1
 Bill text 2 versions

Source documents hosted by congress.gov.

 Committees of jurisdiction 1
 Lobbying activity 131

Registered lobbyists who named this bill in their disclosure filings. Source: federal Lobbying Disclosure Act filings.

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APA
U.S. Congress. (2026). S. 1954: Biosimilar Red Tape Elimination Act. 119th Congress. Open America. https://openamerica.io/bill/119-S-1954/
MLA
"S. 1954: Biosimilar Red Tape Elimination Act." 119th Congress, 2026, Open America, https://openamerica.io/bill/119-S-1954/.
Bluebook (legal)
S. 1954, 119th Cong. (2026), https://openamerica.io/bill/119-S-1954/.
Markdown link
[S. 1954: Biosimilar Red Tape Elimination Act](https://openamerica.io/bill/119-S-1954/)
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