Search Result：phase iv clinical trial
phase iv clinical trial 
(TTS Sound)
(TTS Sound)Overview of noun phase_iv_clinical_trial
The noun phase iv clinical trial has 1 sense
- phase IV clinical trial, phase IV -- (sometimes the FDA approves a drug for general use but requires the manufacturer to continue to monitor its effects; during this phase the drug may be tried on slightly different patient populations than those studied in earlier trials)