The agency formed by ex-Chandler Chicco Agency directors Emma Crozier and Jennie Talman brought in Bates to lead UK PR for Roche secondary breast cancer drug Bondronat.
The drug works against metastatic bone cancer for patients in whom breast cancer returns and the work is a mixture of media and professional relations.
Bates has been freelance for a year but was formerly at CCA. She will be supported on the Roche account by Jasmine Hoffman, who has joined as junior consultant. It is her first job in PR.
The account, which Just won at the end of 2006, was previously run by Talman.