Background: The aim of the present 24-week multicentre randomized non-inferiority trial was to compare the efficacy and safety of two insulin intensification strategies in uncontrolled type 2 diabetes despite optimized basal insulin therapy.
Methods: Patients with fasting plasma glucose (FPG) <130 mg/dL and HbA1c 7.0%-10.0% while on insulin glargine were randomized to a basal-prandial group (stepwise addition of insulin glulisine) or a premixed insulin group (insulin aspart/insulin aspart protamine 30/70 starting with 6 IU twice daily). The primary endpoint was the change in HbA1c after 24 weeks (non-inferiority margin 0.4%).
Results: At Week 24, the adjusted mean change from baseline HbA1c was -0.94 ± 0.09% and -1.04 ± 0.09% in basal-prandial and premixed insulin groups, respectively, with a mean difference of -0.09% (95% confidence interval [CI] -0.35, 0.16). A lower rate of hypoglycemia with a similar reduction in HbA1c was observed during stabilization of the total daily insulin dose in the premixed insulin group (Weeks 0-12). After stabilization of the total daily insulin dose, the rate of hypoglycemia and the total daily insulin dose were similar in the two groups.
Conclusions: The efficacy and safety of the two intensifying regimens were similar after stabilization of the total daily insulin dose when oral agents were maintained. Starting with a lower total daily insulin dose with a gradual change in the treatment regimen was helpful in reducing the rate of hypoglycemia during initial stabilization of the total daily insulin dose.
Trial registration: ClinicalTrials.gov NCT01212913.
Keywords: basal-prandial; glargine; glulisine; premixed insulin; 基础-餐时; 甘精胰岛素; 赖谷胰岛素; 预混胰岛素.
© 2015 Ruijin Hospital, Shanghai Jiaotong University School of Medicine and Wiley Publishing Asia Pty Ltd.