NCT00078897 2019-09-24Selenium for Prevention of Adenomatous Colorectal PolypsUniversity of ArizonaPhase 3 Terminated1,621 enrolled 12 charts
NCT00030901 2013-02-06S9917, Selenium in Preventing Cancer in Patients With Neoplasia of the ProstateSWOG Cancer Research NetworkPhase 3 Completed619 enrolled 11 charts