Phase IV trial

From WikiMD's Food, Medicine & Wellness Encyclopedia

  • After a treatment has been approved and is being marketed, it is studied in a phase IV trial to evaluate side effects that were not apparent in the phase III trial. Thousands of people are involved in a phase IV trial. (NCI)
  • Post-marketing studies to delineate additional information including the drug's risks, benefits, and optimal use. (NLM)
Phase IV trial Resources
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