Enrollment Growth in the ACA Marketplaces

This analysis of enrollment in Affordable Care Act (ACA) Marketplace health plans finds a record 24.3 million people enrolled in 2025, more than double the total in 2020, with most of the growth occurring in states won by President Trump in the 2024 election. In six states, enrollment more than tripled from 2020 to 2025:…

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How many patients are switching to biosimilars?

That is a key question if long-run drug prices are going to come down for biologic products. We can decompose this question into 3 sub-questions: What share patients initiating therapy start on a biosimilar?What share of patients already using a biologic products switch to a biosimilar?Do patient of physician factors drive biosimilar prescribing patterns? A…

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