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A 180-day supplement is a request for a significant change in components, materials, design, specification, software, color additive, and labeling to an approved premarket application or premarket report.
As a pilot program under the CDRH Transparency Initiative, FDA has begun releasing some summary review memos for 180-day PMA supplements relating to design changes. Links to all available summary review memos can be found in the searchable database linked below:
Premarket Approval (PMA) Summary Review Memos for 180-Day Design Changes Database
This database is updated every Sunday.