OBJECTIVEInsulin degludec/insulin aspart (IDegAsp) is the first combination of a basal insulin with an ultralong duration of action, and a rapid-acting insulin in a single injection. This trial compared IDegAsp with biphasic insulin aspart 30 (BIAsp 30) in adults with type 2 diabetes inadequately controlled with once-or twice-daily (OD or BID) pre-or self-mixed insulin with or without oral antidiabetic drugs.
RESEARCH DESIGN AND METHODSIn this 26-week, randomized, open-label, multinational, treat-to-target trial, participants (mean age 58.7 years, duration of diabetes 13 years, BMI 29.3 kg/m 2 , and HbA 1c 8.4% [68 mmol/mol]) were exposed (1:1) to BID injections of IDegAsp (n = 224) or BIAsp 30 (n = 222), administered with breakfast and the main evening meal and dose titrated to a self-measured premeal plasma glucose (PG) target of 4.0-5.0 mmol/L.
RESULTSAfter 26 weeks, mean HbA 1c was 7.1% (54 mmol/mol) for both groups, with IDegAsp achieving the prespecified noninferiority margin for mean change in HbA 1c (estimated treatment difference [ETD] -0.03% points [95% CI -0.18 to 0.13]). Treatment with IDegAsp was superior in lowering fasting PG (ETD -1.14 mmol/L [95% CI -1.53 to -0.76], P < 0.001) and had a significantly lower final mean daily insulin dose (estimated rate ratio 0.89 [95% CI 0.83-0.96], P = 0.002). Fewer confirmed, nocturnal confirmed, and severe hypoglycemia episodes were reported for IDegAsp compared with BIAsp 30.
CONCLUSIONSIDegAsp BID effectively improves HbA 1c and fasting PG levels with fewer hypoglycemia episodes versus BIAsp 30 in patients with uncontrolled type 2 diabetes previously treated with once-or twice-daily pre-or self-mixed insulin.