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Senate bill · S. 1954 (119th Congress)

Biosimilar Red Tape Elimination Act

Latest action Jul 27, 2026

U.S. Senate

Sponsor

Mike Lee

U.S. Senator for Utah · Republican

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Summary

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 (Draft guidance released by the FDA in 2024 proposed to make some of these interchangeability requirements optional, including studies related to the safety of switching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.

Summary from the Congressional Research Service. How we handle summaries

From Congress.gov and official rosters. This record was last updated Sep 23, 2026. About our data

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Where it stands

Out of committee and scheduled for a vote by the full chamber.

  1. Introduced
  2. In committee
  3. Up for a vote
  4. Passed one chamber
  5. Passed
  6. Enacted

Committee

Senate Committee on Health, Education, Labor, and Pensions · U.S. Senate

Cosponsors

Ben Ray Luján, Jon Ossoff and 2 more on Agora

Showing the cosponsors who are on Agora, A to Z. The official record may list more.

Read on Congress.gov (opens in a new tab)
  • Democratic3
  • Republican1

This bill has cosponsors from more than one party.

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Full history

  1. Jul 27, 2026

    Reported out of committee

    Committee on Health, Education, Labor, and Pensions. Reported by Senator Cassidy with an amendment in the nature of a substitute. Without written report.

  2. Jul 27, 2026

    Reported out of committee

    Committee on Health, Education, Labor, and Pensions. Reported by Senator Cassidy with an amendment in the nature of a substitute. Without written report.

  3. Jul 27, 2026

    Introduced

    Placed on Senate Legislative Calendar under General Orders. Calendar No. 521.

    U.S. Senate

  4. Jul 27, 2026

    Placed on Senate Legislative Calendar Under General Orders. Calendar No. 521.

    Placed on Senate Legislative Calendar under General Orders. Calendar No. 521.

    U.S. Senate

  5. Jun 17, 2026

    Reported out of committee

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

Show full history (4 earlier events)
  1. Jun 17, 2026

    Reported out of committee

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

  2. Jun 4, 2025

    Introduced

    Introduced in U.S. Senate

    U.S. Senate

  3. Jun 4, 2025

    Referred to committee

    Read twice and referred to the Committee on Health, Education, Labor, and Pensions.

  4. Jun 4, 2025

    Referred to committee

    Read twice and referred to the Committee on Health, Education, Labor, and Pensions.