The influence of Medicare Part D on the list pricing of brand drugs.

ABSTRACT:

Objective

To compare the Medicare Part D market share of brand drugs with their net-to-list price ratio.

Data sources and study setting

SSR Health Brand Net Price Tool and Medical Expenditure Panel Survey, 2007-2019.

Study design

For each drug, we calculated the ratio of net to list price and the percent of users that were Medicare-eligible. We compared these cross-sectionally in each year and estimated a difference-in-differences model comparing drugs with high or low Medicare market shares (MMS) after following changes to program incentives in 2010.

Data collection/extraction methods

The sample included brand drugs without generic competitors appearing in both datasets.

Principal findings

Net-to-list price ratios were negatively correlated with MMS in

SUBMITTER: Ippolito BN 

PROVIDER: S-EPMC10315368 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature