Patients with inadequately controlled type 2 diabetes receiving metformin ( 1500 mg/day ) , aged 18 years or older , with glycated haemoglobin ( HbA1c ) 70 % or greater ( 53 mmol/mol ) and 100 % or lower ( 86 mmol/mol ) , and body-mass index 45 kg/m ( 2 ) or lower were randomly assigned to receive once-weekly dulaglutide ( 15 mg ) or once-daily liraglutide ( 18 mg ) .