METHODS	We examined PD and active metabolite pharmacokinetics ( PKs ) with prasugrel 5 and 10 mg and clopidogrel 75 mg in a 3-period ( 12 days each ) blinded , crossover study in VE ( n = 73 ; mean : 79 3 years of age ) or ( n = 82 ) nonelderly ( NE ) ( 45 to < 65 years of age ; mean : 56 5 years of age ) stable coronary artery disease ( CAD ) patients receiving background aspirin .\