While the impact of the IRA on the pharmaceutical industry cannot yet be fully determined, it is likely to be significant.
All entries for: Zentalis Pharmaceuticals, Inc
November 10, 2025
Zentalis Pharmaceuticals, Inc
Neutral Outlook
San Diego, CA
51-200 employees
In August 2022, the Inflation Reduction Act of 2022, or IRA, was signed into law. Among other things, the IRA requires manufacturers of certain drugs to engage in price negotiations with Medicare, with prices that can be negotiated subject to a cap imposes rebates under Medicare Part B and Medicare Part D to penalize price increases that outpace inflation (first due in 2023); redesigns the Medicare Part D benefit (beginning in 2024); and replaces the Part D coverage gap discount program with a new manufacturer discount program (beginning in 2025). CMS has published the negotiated prices for the initial ten drugs, which will first be effective in 2026, and has published the list of the subsequent 15 drugs that will be subject to negotiation
Disease Area: Oncology
Drug Type: Small Molecule