Pfizer is consolidating global creative within WPP, Omnicom Group and Publicis Groupe, after a review. The move will eliminate a number of independent agencies that had been working with the pharma giant, as well as Havas' Euro Life, Dentsu's mcgarrybowen and Interpublic's McCann Humancare. Pfizer spends more than $2 billion on advertising in the U.S., according to Ad Age's DataCenter.