Objective: The aim of this study was to evaluate twice-daily injections of biphasic insulin lispro vs. basal-bolus (BB) therapy with regard to quality-of-life (QOL) and glycaemic control in insulin-naïve type 2 diabetic patients. Methods: Twenty-eight patients with type 2 diabetes were randomized to receive either twice-daily 50/50 premixed insulin lispro (Mix50 group) or BB (NPH insulin at bedtime and preprandial insulin lispro) therapy (BB group) for 12 weeks. Glycated haemoglobin (HbA1C), 1,5-anhydroglucitol (1,5-AG), blood plasma glucose level, body mass index (BMI), daily total insulin dosage and insulin therapy-related QOL (ITR-QOL) were studied. Results: ITR-QOL was significantly better in the Mix50 than in the BB group (103.1 ± 9.8 vs. 90.6 ± 19.4; p < 0.05). HbA1c improved in both groups (from 11.1 ± 2.1 to 6.9 ± 1.0% with Mix50 vs. from 11.0 ± 2.3 to 6.6 ± 0.8% with BB therapy). Conclusion: These results might suggest that twice-daily injections of premixed rapid-acting insulin analogue therapy could achieve good glycaemic control and better QOL compared with BB therapy in insulin-naïve type 2 diabetes.
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