Modern devices provide significant health benefits, but experience has shown that the full magnitude of some potential risks doesn’t always emerge during the mandatory clinical trials that are required for approval. FDA sometimes orders post-approval studies to address remaining issues such as the product’s performance once it becomes more widely available or is used over a longer period of time.
Generally, companies must submit interim post-approval study status reports every six months for the first two years of the study and annually thereafter until the final report has been submitted.
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