CMS Starts Outcomes-Based Payment Model for Sickle Cell Drugs

July 15, 2025, 8:30 PM UTC

The Centers for Medicare & Medicaid Services unveiled a new outcomes-based payment model with 33 states to expand Medicaid access to gene therapies for sickle cell disease.

  • States will get guaranteed discounts and rebates from participating gene therapy manufacturers if their drugs fail to deliver a promised benefit
  • CMS will negotiate with companies on behalf of state Medicaid agencies
  • States covering 84% of Medicaid sickle cell patients, CMS said
  • Optional start dates from Jan. 2025 to Jan. 2026
  • Future expansion may include other costly, high-impact diseases

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