The levels of intraprostatic androgens from 12-week prostate biopsies , including the primary end point ( dihydrotestosterone/testosterone ) , were significantly lower ( dehydroepiandrosterone , ( 4 ) - androstene-3 ,17 - dione , dihydrotestosterone , all P < .001 ; testosterone , P < .05 ) with LHRHa plus AA compared with LHRHa alone .