Carat, Mediacom, Mediaedge:cia and ZenithOptimedia have been shortlisted for the review, which is being handled by the AAR. The pitches will take place this month and a decision is expected in September.
WeightWatchers said it wanted to consolidate the account into one agency following a creative review for continental Europe, which resulted in the appointment of Publicis and FCB.
The UK media account, held by Carat, is not affected by the review. The brand is managed by WeightWatchers UK, a separate company, in Britain.
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