The Consumer Advisor

Merck, Roche and Celgene (now part of Bristol-Myers Squibb) have remained prominent players, but the market dynamics have shifted significantly in recent years. Aug 1, 2025 Update:  @POTUS  sent letters to 17 drug manufacturers outlining steps they must take to bring down prescription drug prices. ( source ) This increased competition is fueled by the success of blockbuster drugs like Keytruda (Merck), Tagrisso (AstraZeneca), and Ibrance (Pfizer), as well as the rapid adoption of immunotherapies and targeted treatments ( Verified Market Reports ). Look at 2017. The trio of drugmakers together held a 45.8% share of the market, with longtime cancer leader Roche controlling 26.4% all on its own. In 2024, though, market intelligence firm EvaluatePharma expects to see much more parity. The top three’s share will shrink to 26.2%, with Roche’s dropping all the way down to 11.9%. And the No. 2 through No. 5 companies—BMS, Johnson & Johnson, Pfizer, AstraZeneca and Merck—will boas...