HR 10628 — 119th Congress

Biosimilars Access and Affordability Act

Introduced Sep 28, 2026 Open for voting
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Core Policy Mechanism Top 1

Delay Medicare price negotiations when biosimilar entry imminent

Changes when Medicare can negotiate drug prices by automatically pausing or ending negotiations for a drug when a biosimilar version is expected on the market within two years, removing the negotiated price obligation for that period.

  • Population Scope Medium Directly affects Medicare Part D enrollees who use high-cost biologic drugs subject to negotiation — a substantial but targeted subset of the ~67 million Medicare beneficiaries, estimated well under 25% of the U.S. population.
  • Budgetary Magnitude Medium No funds are appropriated, but forgoing negotiated prices on high-cost biologics for one or more years represents recurring Medicare outlays that would otherwise have been reduced, producing a meaningful indirect fiscal effect without a discrete dollar figure in the bill.
  • Legal / Regulatory Depth High Creates a new statutory mandate that automatically removes drugs from negotiation eligibility — a binding substantive constraint on the Secretary of Health and Human Services (HHS) that eliminates an existing enforceable pricing obligation for an entire class of products under defined conditions.
  • Degree of Discretion Granted Medium The Secretary of HHS must make a factual determination of 'high likelihood' of biosimilar market entry, which involves judgment over uncertain commercial and regulatory timelines, but the downstream removal of negotiation status is mandatory once that finding is made.
  • Implementation & Enforcement Burden Medium Imposes a recurring case-by-case adjudicatory obligation on HHS — pre-determination notice, written confirmation under penalty of perjury from manufacturers, and ongoing monitoring of biosimilar pipeline status — for each drug under negotiation consideration.
  • Temporal Commitment High Amends the Social Security Act with no expiration date, persisting indefinitely until Congress affirmatively repeals or modifies it.
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Summary

This bill changes the rules for when Medicare can negotiate prices for certain drugs when a cheaper alternative called a biosimilar — a near-copy of a complex biological drug — is about to enter the market. Under current law, Medicare can negotiate lower prices for high-cost drugs. This bill delays or removes that negotiation process when a biosimilar is expected to become available within two years, on the theory that market competition from the biosimilar will drive down prices on its own.

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Version Event Date User support Your vote Roll calls
Original
Initial publication
Sep 28, 2026
Sep 28, 2026 No votes yet — —

Core Policy Mechanism Top 1

Delay Medicare price negotiations when biosimilar entry imminent

Changes when Medicare can negotiate drug prices by automatically pausing or ending negotiations for a drug when a biosimilar version is expected on the market within two years, removing the negotiated price obligation for that period.

  • Population Scope Medium Directly affects Medicare Part D enrollees who use high-cost biologic drugs subject to negotiation — a substantial but targeted subset of the ~67 million Medicare beneficiaries, estimated well under 25% of the U.S. population.
  • Budgetary Magnitude Medium No funds are appropriated, but forgoing negotiated prices on high-cost biologics for one or more years represents recurring Medicare outlays that would otherwise have been reduced, producing a meaningful indirect fiscal effect without a discrete dollar figure in the bill.
  • Legal / Regulatory Depth High Creates a new statutory mandate that automatically removes drugs from negotiation eligibility — a binding substantive constraint on the Secretary of Health and Human Services (HHS) that eliminates an existing enforceable pricing obligation for an entire class of products under defined conditions.
  • Degree of Discretion Granted Medium The Secretary of HHS must make a factual determination of 'high likelihood' of biosimilar market entry, which involves judgment over uncertain commercial and regulatory timelines, but the downstream removal of negotiation status is mandatory once that finding is made.
  • Implementation & Enforcement Burden Medium Imposes a recurring case-by-case adjudicatory obligation on HHS — pre-determination notice, written confirmation under penalty of perjury from manufacturers, and ongoing monitoring of biosimilar pipeline status — for each drug under negotiation consideration.
  • Temporal Commitment High Amends the Social Security Act with no expiration date, persisting indefinitely until Congress affirmatively repeals or modifies it.
No signal yet

Core Policy Mechanism

Delay Medicare price negotiations when biosimilar entry imminent