Allergan Missing Breast Implant Study Requirements
FDA says that Allergan is not meeting the post-approval study requirements associated with its Natrelle silicone-filled breast implants (round responsive implants) and Natrelle 410 highly cohesive anatomically shaped silicone-filled breast implants. A 5/14 Warning Letter says the studies were required to provide information on the long-term device performance and to evaluate device performance under general conditions of use.
The agency says the company has failed to comply with three of the five requirements for the round responsive implant study and two of the seven requirements for the 410 style implant study.
The letter warns the company that failing to conduct required studies could be grounds for withdrawal of approval of a PMA. Allergan was told to take prompt action to correct the violations and to respond with a plan addressing the issues in the letter or with documentation showing that it has complied with the post-approval requirements. FDA also wants a list of specific steps the company has taken to correct the violations and prevent their recurrence, with supporting documentation and a schedule for completion.