At week @ , adjusted mean ( SE ) changes from baseline in HbA@c were -@ % ( @ ) % ( -@ -LSB- @ -RSB- mmol/mol ) with placebo , -@ % ( @ ) % ( -@ -LSB- @ -RSB- mmol/mol ) with empagliflozin @ mg , and -@ % ( @ ) % ( -@ -LSB- @ -RSB- mmol/mol ) with empagliflozin @ mg ( both P < @ ) .