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Diabetes Metab Res Rev. 2001 Jul-Aug;17(4):285-91.

Severe hypoglycaemia in patients with type 1 diabetes and impaired awareness of hypoglycaemia: a comparative study of insulin lispro and regular human insulin.

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1
Department of Diabetes, Royal Infirmary of Edinburgh, 1 Lauriston Place, Edinburgh EH3 9YW, Scotland, UK.

Abstract

OBJECTIVE:

To assess the potential of insulin lispro to limit the frequency of severe hypoglycaemia without compromising glycaemic control in a cohort of patients with type 1 diabetes who are at a high risk of severe hypoglycemia. Research design and methods An open-label, randomised, 12-month comparative crossover study of insulin lispro and regular human insulin was performed in 33 patients with type 1 diabetes with impaired hypoglycaemia awareness. The efficacy of each treatment was evaluated by glycaemic control (HbA(1c)), eight-point home blood glucose profiles, and the frequency and severity of hypoglycaemic episodes and quality of life.

RESULTS:

Eighteen (55%) patients experienced one or more episodes of severe hypoglycaemia in the 48 weeks of study. There was a trend to a lower incidence of severe hypoglycaemia during treatment with insulin lispro in comparison with regular human insulin (55 vs 84 episodes, p=0.087). This resulted principally from a 47% lower incidence of nocturnal severe hypoglycaemia with insulin lispro (25 vs 47 episodes, p=0.11). The lower frequency of severe hypoglycaemia associated with insulin lispro was not explained by differences in glycated haemoglobin between insulin treatments (HbA(1c) 9.1% insulin lispro vs 9.3% regular human insulin).

CONCLUSIONS:

In individuals with type 1 diabetes, who have impaired awareness of hypoglycaemia, treatment with insulin lispro may be associated with a lower incidence of severe hypoglycaemia manifested predominantly through less frequent nocturnal episodes. Insulin lispro may have a beneficial role in the management of patients with diabetes at risk of severe hypoglycaemia, although a larger study is required to confirm these findings.

PMID:
11544612
[Indexed for MEDLINE]

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