At 26 weeks , changes from baseline HbA1c ( least squares [ LS ] mean SE ) were : dulaglutide 1.5 mg , -0.78 0.06 % ( -8.5 0.70 mmol/mol ) ; dulaglutide 0.75 mg , -0.71 0.06 % ( -7.8 0.70 mmol/mol ) ; and metformin , -0.56 0.06 % ( -6.1 0.70 mmol/mol ) .