In a pragmatic randomized trial , we randomly assigned 2,378 adults with diabetes mellitus who had recently been prescribed a new class of medication for treating elevated levels of glycated hemoglobin ( A1C ) 8 % ( 64 mmol/mol ) , BP 140/90 mmHg , or LDL cholesterol 100 mg/dL , to receive 1 ) one scripted telephone call from a diabetes educator or clinical pharmacist to identify and address nonadherence to the new medication or 2 ) usual care .