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Insulin Detemir Combo with Sitagliptin and Metformin Efficacy & Safety

Detemir plus sitagliptin more effective than sitagliptin with metformin with or without a sulfonylurea….

The aim of this trial was to evaluate the efficacy and safety of the combination of once-daily insulin detemir (IDet) and sitagliptin (SITA) versus SITA ± sulphonylurea (SU), both in combination with metformin (MET) in insulin-naive subjects.  

In a 26-week, open-label, randomized, parallel-group study in Type 2 diabetes, insulin-naive subjects concomitantly treated with MET ± second oral antidiabetic drug (OAD) were randomized 1 : 1 to IDet + SITA + MET or SITA + MET ± SU. All continued with MET treatment, and those treated with SU continued if randomized to SITA + MET ± SU. Efficacy endpoints included glycosylated hemoglobin (HbA1c), fasting plasma glucose (FPG), 9-point self-measured plasma glucose (SMPG), weight, body mass index (BMI). Safety endpoints included adverse events (AEs) and hypoglycemia.  

The results showed significantly higher reductions in HbA1c, FPG and SMPG were achieved with IDet + SITA + MET compared with SITA + MET ± SU. Estimated HbA1c decreased by 1.44% in the IDet + SITA + MET group versus 0.89% in SITA + MET ± SU, p < 0.001. FPG decreased by 3.7 mmol/l (66.3 mg/dl) versus 1.2 mmol/l (22.2 mg/dl), p < 0.001, respectively.  

Small decreases in weight and BMI were observed in both arms, with no significant differences. AEs were mild or moderate and were more common in the SITA + MET ± SU arm than in the IDet + SITA + MET arm. There was no major hypoglycemia. Observed rates of hypoglycemia were very low (1.3/1.7 episodes/patient year) in both arms. The subgroup treated with MET and SUs prior to the trial achieved similar results.  

From the results it was concluded that the combination of once-daily IDet with SITA showed a clinically and significantly better improvement in glycemic control than SITA in combination with or without SUs. Both regimens were associated with a low rate of hypoglycemia and slight weight reduction.  

Diabetes, Obesity and Metabolism, Volume 13, Number 3