word
clinical trial phases
KLIN-ih-kul TRY-ul FAY-zez
ˈklɪnɪkəl ˈtraɪəl ˈfeɪzɪzListen
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Syllable breakdown
clinicaltrialphases
Dictionary meaning
four stages (Phase I–IV) of human testing required before a drug can be approved; Phase I tests safety, II tests efficacy, III confirms in large populations, IV monitors post-approval
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