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Insulin Degludec in Type 1 Diabetes A randomized controlled trial of a new-generation ultra-long-acting insulin compared with insulin glargine

Author(s): Birkeland KI ; Home PD ; Wendisch U ; Ratner RE ; Johansen T ; Endahl LA ; Lyby K ; Jendle JH ; Roberts AP ; DeVries JH ; Meneghini LF

Corporate source(s)

Birkeland KI, Oslo Univ Hosp, Oslo, Norway, k.i.birkeland@medisin.uio.no

Source

Diabetes Care 2011, Vol. 34, pg. 661-665

Abstract

OBJECTIVE-Insulin degludec (IDeg) is a basal insulin that forms soluble multihexamers after subcutaneous injection, resulting in an ultra-long action profile. We assessed the efficacy and safety of IDeg formulations administered once daily in combination with mealtime insulin aspart in people with type 1 diabetes. RESEARCH DESIGN AND METHODS-In this 16-week, randomized, open-label trial, participants (mean: 45.8 years old, A1C 8.4%, fasting plasma glucose [FPG] 9.9 mmol/L, BMI 26.9 kg/m(2)) received subcutaneous injections of IDeg(A) (600 mu mol/L; n = 59), IDeg(B) (900 mu mol/L; n = 60), or insulin glargine (IGlar; n = 59), all given once daily in the evening. Insulin aspart was administered at mealtimes. RESULTS-At 16 weeks, mean A1C was comparable for IDeg(A) (7.8 +/- 0.8%), IDeg(B) (8.0 +/- 1.0%), and IGlar (7.6 +/- 0.8%), as was FPG (8.3 +/- 4.0, 8.3 +/- 2.8, and 8.9 +/- 3.5 mmol/L, respectively). Estimated mean rates of confirmed hypoglycemia were 28% lower for IDeg(A) compared with IGlar (rate ratio [RR]: 0.72 [95% CI 0.52-1.00]) and 10% lower for IDeg(B) compared with IGlar (RR: 0.90 [0.65-1.24]); rates of nocturnal hypoglycemia were 58% lower for IDeg(A) (RR: 0.42 [0.25-0.69]) and 29% lower for IDeg(B) (RR: 0.71 [0.44-1.16]). Mean total daily insulin dose was similar to baseline. The frequency and pattern of adverse events was similar between insulin treatments. CONCLUSIONS-In this clinical exploratory phase 2 trial in people with type 1 diabetes, IDeg is safe and well tolerated and provides comparable glycemic control to IGlar at similar doses, with reduced rates of hypoglycemia.

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