Good HIV disease control was achieved in 60 % of the patients ( mean , 255 patients ) in the NRTI group , 64 % of the patients ( mean , 277 ) in the raltegravir group ( P = 0.21 for the comparison with the NRTI group ; superiority of raltegravir not shown ) , and 55 % of the patients ( mean , 232 ) in the monotherapy group ( noninferiority of monotherapy not shown , based on a 10-percentage-point margin ) .