Journal
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
Volume 98, Issue 3, Pages 1154-1162Publisher
ENDOCRINE SOC
DOI: 10.1210/jc.2012-3249
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- Novo Nordisk (Bagsvaerd, Denmark)
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Objective: This study investigated the efficacy and safety of insulin degludec (IDeg) once daily (OD), varying injection timing day to day in subjects with type 1 diabetes. Research Design and Methods: This 26-week, open-label, treat-to-target, noninferiority trial compared IDeg forced flexible (Forced-Flex) OD (given in a fixed schedule with a minimum 8 and maximum 40 hours between doses) with IDeg or insulin glargine (IGlar) given at the same time daily OD. In the 26-week extension, all IDeg subjects were transferred to a free-flexible (Free-Flex) regimen, which allowed any-time-of-day dosing, and compared with subjects continued on IGlar. Results: After 26 treatment weeks, mean glycosylated hemoglobin was reduced with IDeg Forced-Flex (-0.40%), IDeg (-0.41%), and IGlar (-0.58%). IDeg Forced-Flex noninferiority was achieved. Fasting plasma glucose reductions were similar with IDeg Forced-Flex and IGlar but greater with IDeg (-2.54 mmol/L) than IDeg Forced-Flex (-1.28 mmol/L) (P = .021). At week 52, IDeg Free-Flex subjects had similar glycosylated hemoglobin but greater fasting plasma glucose reductions than IGlar subjects (- 1.07 mmol/L) (P = .005). Confirmed hypoglycemia rates (plasma glucose <3.1 mmol/L or severe hypoglycemia) were similar at weeks 26 and 52. Nocturnal confirmed hypoglycemia was lower with IDeg Forced-Flex vs IDeg (37%; P = .003) and IGlar (40%; P = .001) at week 26 and 25% lower with IDeg Free-Flex vs IGlar (P = .026) at week 52. Conclusions: IDeg can be administered OD at any time of day, with injection timing varied without compromising glycemic control or safety vs same-time-daily IDeg or IGlar. This may improve basal insulin adherence by allowing injection-time adjustment according to individual needs. (J Clin Endocrinol Metab 98: 1154-1162, 2013)
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