The Inflation Reduction Act: Implications for Medicare spending and access to biologic therapies for chronic rhinosinusitis with nasal polyposis and asthma.

In 2021, Medicare spending on biologics was $926 million in Part B (FFS) and $1.3 billion in Part D (FFS/MA). Between 2017 and 2021, annual Medicare spending on biologics increased by approximately 200%. Between 2023 and 2025, Medicare Part D OOP costs for biologics will decrease by an estimated 50%-60%.