Jean-Yves Goar heads the three-strong office, reporting to the agency's London-based acting Europe MD Gail Cohen.
The news comes just a week after CCA poached two senior Weber Shandwick staff: Fiona Hall - to join as MD of European operations - and Neil McGregor-Paterson, to be London MD (PRWeek, 14 July). Both are yet to start at CCA.
Goar has operated as an independent consultant for 15 years, and spent more than two years working on an ad hoc basis for CCA's account with Allergan.
The Paris office will work in partnership with Presse & Papiers, a French healthcare media relations specialist.