Noun Phrase
/ˌklɪn.ɪ.kəl ˈtraɪ.əl/

Clinical Trial

A research study that tests new treatments, drugs, or interventions on humans to assess their safety and effectiveness.


Phases:

  • Phase I: Tests safety and dosage.
  • Phase II: Assesses effectiveness and side effects.
  • Phase III: Compares to standard treatments in larger groups.
  • Phase IV: Monitors long-term effects post-approval.


Purpose: To provide robust evidence for medical treatments.