A whistleblowing former paralegal at drug giant Sanofi is now claiming she was aware of "many instances" where Sanofi lawyers destroyed documents to avoid turning them over to opponents in prior legal cases.

The French pharmaceutical group Sanofi-Synthelabo headquaters in Ambares.

Ex-Sanofi paralegal Diane Ponte's new allegation comes in an affidavit she filed in her pending lawsuit against the company.