Pfizer wins $10B bidding war for obesity drug developer Metsera in major pharmaceutical acquisition Pfizer has won a $10 billion deal to acquire obesity drug developer Metsera, securing foothold in lucrative weight-loss treatment market. Original Source: https://www.foxbusiness.com/fox-news-health/pfizer-wins-10b-bidding-war-obesity-drug-developer-metsera-major-pharmaceutical-acquisition