chemoprevention studyListen to pronunciation(KEE-moh-pree-VEN-shun STUH-dee)In cancer prevention, a clinical trial that studies whether taking certain medicines, vitamins, minerals, or food supplements can prevent cancer. Also called agent study.More InformationCancer Prevention OverviewSearch NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#