Biohaven’s valuation has dropped from $3.9B to $1.42B, but no revenue and high cash burn still limit its appeal. Read why ...

Shares in Biohaven closed 9.6% higher at $21.74 on 28 April, compared to $19.84 at market open. The deal comes as Biohaven awaits a regulatory decision from the FDA on troriluzole.

Pfizer's CEO said tariff uncertainty is hindering the company from making big investments in the US. Albery Bourla said there could be "tremendous investments" in R&D and manufacturing in the US.

Pfizer is facing another setback with its weight-loss pill, danuglipron. The pharmaceutical giant stopped development of the drug after liver issues affected one patient.

Pfizer is stopping development of its experimental oral GLP-1 drug for obesity, the company announced Monday, after a patient in a trial suffered a liver injury potentially caused by the drug.

Pfizer is ending the development of its potential once-daily pill treatment for obesity before venturing into the biggest and most expensive level of clinical testing. CNN values your feedback 1.

Capping more than two years of stock-gyrating drama, Pfizer said Monday that it would stop development of danuglipron, its experimental oral GLP-1 medicine to treat obesity.

The GOP-led House Judiciary Committee is requesting records from Pfizer’s CEO and an interview with a former company executive to investigate an allegation that clinical testing related to the ...

Pfizer said on Tuesday it would generate $1.7 billion more in savings from cost cuts to its manufacturing and research operations, highlighting its operational efficiency even as it reported lower ...

Pfizer jumps into cancer-treatment race with a $6 billion licensing deal with a China-based company, six months after Merck’s move for a lot less money.

Pfizer said on Monday it has discontinued development of experimental weight-loss pill danuglipron after a trial patient experienced potential drug-induced liver injury that resolved after the ...