Phase 4 clinical trials
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At the time the article was created Frank Gaillard had no recorded disclosures.View Frank Gaillard's current disclosures
At the time the article was last revised Henry Knipe had no recorded disclosures.View Henry Knipe's current disclosures
Phase 4 clinical trials occur after a new drug or treatment has been successfully marketed. They are aimed at defining optimal use, identifying additional side-effects or risks, and comparing the treatment to other existing therapies.