However , mean fasting plasma glucose ( FPG ) levels were significantly lower with glipizide-GITS treatment than with immediate-release glipizide at the end of week 1 ( 11.0 vs. 11.6 mmol/l ; P < 0.01 ) and at the end of the 8-week treatment phase ( 10.9 vs. 11.7 mmol/l ; P < 0.001 ) .
