Michel Joly is now deputy V-P comms and V-P brand and scientific communication, reporting to senior V-P of comms Nicole Cranois - the firm's top global PRO.
Other fresh appointments include Robert Sebbag, who becomes V-P solidarity mission on access to medicine.
One high-profile exit following the creation of the combined Paris comms team is former Aventis SV-P and head of corporate comms Carsten Tilger.
He joined Kabel Deutschland last month in its top PR job.
In the UK Cressida Ward has been confirmed as comms director, Dr Anna Sorman is head of brand policy and public affairs, and Jeni Wilson head of brand comms.