RESULTS	Boceprevir decreased the exposure of all PI/r , with area under the concentration-time curve [ AUC ] from time 0 to the time of the last measurable sample geometric mean ratios of 0.65 ( 90 % confidence interval [ CI ] , .55 -.78 ) for ATV/r ; 0.66 ( 90 % CI , .60 -.72 ) for LPV/r , and 0.56 ( 90 % CI , .51 -.61 ) for DRV/r .\