Per-protocol analysis demonstrated significantly more virologic failure with NVP than with LPV/r regimens [ at week 48 : 19/167 ( 11 % ) vs. 7/166 ( 4 % ) , P = 0.014 ; at week 96 : 27/158 ( 17 % ) vs. 13/159 ( 8 % ) , P = 0.019 ) ] .