Takahashi 2015.

Methods	Randomised controlled trial
Participants	Type 2 diabetes participants receiving twice‐daily injections of premix analog insulin
Interventions	Group A, in which participants were switched to long‐acting insulin glargine at 80% of the insulin dose in the previous treatment regimen (23 participants), or group B (21 participants), given 50% of the previous dose, concurrently with the oral dipeptidyl‐peptidase 4 inhibitor sitagliptin
Outcomes	HbA1c, lipids, hyperglycaemia and nocturnal hypoglycaemia
Notes	Need to determine if participants were adequately controlled before randomisation

BMI: body mass index; HbA1c: glycosylated haemoglobin A1c