Pfizer appoints obesity discovery head; AI startup Xaira makes leadership adjustments

July 10, 2026 07:00 AM EDT Peer Review Pfiz­er ap­points obe­si­ty dis­cov­ery head; AI start­up Xaira makes lead­er­ship ad­just­ments Alex Hoffman Copy Chief and News Editor Kyle LaHucik Biotech Correspondent Andrew Dunn Senior Biopharma Correspondent → Dan­na Breen has been pro­mot­ed to head of obe­si­ty dis­cov­ery at Pfiz­er, ac­cord­ing to a LinkedIn post. Breen suc­ceeds Kendra … Sign up to read this article for free. Get free access to a limited number of articles, plus choose newsletters to get straight to your inbox. SIGN UP LOG IN BECOME A PREMIUM SUBSCRIBER