Bristol Myers Names Massacesi Chief Medical Officer as Hirawat Departs

Dow Jones

Jul 25, 2025

By Colin Kellaher

Bristol Myers Squibb's chief medical officer, Samit Hirawat, is leaving the drugmaker to pursue new professional opportunities.

Bristol Myers on Friday said Cristian Massacesi, most recently chief medical officer and oncology chief development officer at AstraZeneca, will succeed Hirawat as executive vice president, chief medical officer and head of development on Aug. 1.

The Princeton, N.J., company said Hirawat, who joined as chief medical officer in 2019, will remain as an adviser through Nov. 1 to assist with the transition.

Bristol Myers said Massacesi will oversee its early- and late-stage product development across all therapeutic areas.

Write to Colin Kellaher at colin.kellaher@wsj.com

(END) Dow Jones Newswires

July 25, 2025 07:30 ET (11:30 GMT)

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