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Insulin degludec/insulin aspart versus biphasic insulin aspart 30 in Asian patients with type 2 diabetes inadequately controlled on basal or pre-/self-mixed insulin: a 26-week, randomised, treat-to-target trial



Insulin degludec/insulin aspart versus biphasic insulin aspart 30 in Asian patients with type 2 diabetes inadequately controlled on basal or pre-/self-mixed insulin: a 26-week, randomised, treat-to-target trial



Diabetes Research and Clinical Practice 107(1): 139-147



Insulin degludec/insulin aspart (IDegAsp) is a soluble co-formulation of IDeg and IAsp. This pan-Asian, 26-week trial investigated efficacy and safety of IDegAsp vs biphasic insulin aspart 30 (BIAsp 30) in Asian adults with type 2 diabetes (T2DM), inadequately controlled on once- or twice-daily (BID) basal, premixed or self-mixed insulin. Participants (mean age 59.8 years, HbA1c 8.4%, FPG 7.9 mmol/L, BMI 25.4 kg/m(2)) were randomised 2:1 to BID IDegAsp (n=282) or BIAsp 30 (n=142) and continued existing metformin treatment. Insulins were administered with breakfast and main evening meal, titrated to a pre-breakfast and pre-main evening meal self-measured plasma glucose target of 4-5 mmol/L. IDegAsp achieved the primary endpoint of non-inferiority to BIAsp 30 for mean change in HbA₁c (estimated treatment difference [ETD] IDegAsp-BIAsp 30: 0.05% points [95% CI -0.10; 0.20]). IDegAsp was superior in lowering fasting plasma glucose (FPG) (ETD -1.06 mmol/L, 95% CI -1.43; -0.70, p<0.001), and resulted in a lower final mean daily insulin dose (0.79 U/kg vs 0.99 U/kg, estimated rate ratio [RR] 0.79, 95% CI 0.73; 0.85, p<0.0001). Rates of overall confirmed and severe hypoglycaemia were similar between treatments, while rate of nocturnal confirmed hypoglycaemia was numerically (p=ns) lower with IDegAsp. During the maintenance period there was a trend (p=ns) towards lower hypoglycaemia rates for IDegAsp. In Asian adults with T2DM, IDegAsp BID effectively improves long-term glycaemic control, and compared to BIAsp 30, provides superior reductions in FPG with a lower dose, and numerically less nocturnal hypoglycaemia.

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Accession: 058128418

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PMID: 25498130

DOI: 10.1016/j.diabres.2014.09.026


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