• Matteo Monami and Edoardo Mannucci.
• Section of Geriatric Cardiology and Medicine, Department of Cardiovascular Medicine, University of Florence and Careggi Teaching Hospital, Florence, Italy.
• Curr Med Res Opin. 2013 Apr 1; 29 (4): 339342339-42.

ObjectivesDegludec is a novel long-acting insulin analogue, providing an adequate supply of basal insulin over 24 hours with one daily injection, with a supposed greater reproducibility and flexibility than other basal insulins.MethodsAn extensive search of Medline and the Cochrane Library for 'degludec' was performed, up to July 1st, 2012, collecting all randomised trials with a duration of at least 16 weeks and enrolling patients with diabetes. The principal outcome was the effect of degludec, compared with other basal insulins, on endpoint HbA1c and hypoglycaemia. Secondary outcomes included BMI, FPG at endpoint, and the incidence of cardiovascular events and cancer.ResultsIn the four trials comparing degludec with glargine, endpoint HbA1c was similar in the two groups, whereas FPG was significantly lower in degludec-treated patients. Degludec was associated with a lower rate of overall and nocturnal hypoglycaemia in type 2 and type 1 diabetes, respectively. No differences were observed for cardiovascular events and cancer.Study LimitationsThe number of available trials and the duration of exposure were limited, so the results obtained should be considered preliminary.ConclusionsDegludec appears to be associated with a lower incidence of hypoglycaemia in comparison with glargine, for similar levels of glycaemic control. The use of this agent could represent one step further in insulin therapy.

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