The aprepitant group and the control group showed an overall complete response rate of 80.3 % ( 95 % confidence interval ( CI ) , 69.2-88 .1 % ) and 67.2 % ( 95 % CI , 55.3-77 .2 % ; odds ratio ( OR ) , 0.50 ; 95 % CI , 0.22-1 .10 ; p = 0.085 ) , respectively .