Randomized Cross-Over Trial of Insulin Glargine Plus Lispro or NPH Insulin Plus Regular Human Insulin in Adolescents With Type 1 Diabetes on Intensive Insulin Regimens

Randomized Cross-Over Trial of Insulin Glargine Plus Lispro or NPH Insulin Plus Regular Human Insulin in Adolescents With Type 1 Diabetes on Intensive Insulin Regimens Nuala P. Murphy , MRCPI 1 , Suzanne M. Keane , MRCPCH 2 , Ken K. Ong , MRCPCH 1 , Martha Ford-Adams , MRCPCH 1 , Julie A. Edge , MD...

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Published in:Diabetes care Vol. 26; no. 3; pp. 799 - 804
Main Authors: MURPHY, Nuala P, KEANE, Suzanne M, ONG, Ken K, FORD-ADAMS, Martha, EDGE, Julie A, ACERINI, Carlo L, DUNGER, David B
Format: Journal Article
Language:English
Published: Alexandria, VA American Diabetes Association 01-03-2003
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Summary:Randomized Cross-Over Trial of Insulin Glargine Plus Lispro or NPH Insulin Plus Regular Human Insulin in Adolescents With Type 1 Diabetes on Intensive Insulin Regimens Nuala P. Murphy , MRCPI 1 , Suzanne M. Keane , MRCPCH 2 , Ken K. Ong , MRCPCH 1 , Martha Ford-Adams , MRCPCH 1 , Julie A. Edge , MD 2 , Carlo L. Acerini , MD 1 and David B. Dunger , MD 1 1 Department of Paediatrics, Addenbrooke’s Hospital, University of Cambridge, Cambridge, U.K. 2 Department of Paediatrics, John Radcliffe Hospital, University of Oxford, Oxford, U.K. Abstract OBJECTIVE —To compare blood glucose control and incidence of nocturnal hypoglycemia in adolescents with type 1 diabetes on multiple injection regimens managed with either an insulin analog combination or NPH insulin plus regular human insulin. RESEARCH DESIGN AND METHODS —In a randomized cross-over study, 28 adolescents with type 1 diabetes on multiple injection therapy received either insulin glargine prebedtime plus lispro preprandially (LIS/GLAR) or NPH insulin prebedtime plus regular human insulin preprandially (R/NPH). During each 16-week treatment arm, subjects completed home blood glucose profiles, and at the end of each treatment arm, they were admitted for an overnight metabolic profile. A total of 25 subjects completed the study. RESULTS —Compared with R/NPH therapy, LIS/GLAR was associated with lower mean blood glucose levels (LIS/GLAR versus R/NPH): fasting (8.0 vs. 9.2 mmol/l, P < 0.0001), 2 h postbreakfast (8.1 vs. 10.7 mmol/l, P < 0.0005), prelunch (8.9 vs. 10.1 mmol/l, P < 0.01), and 2 h postlunch (8.0 vs. 9.5 mmol/l, P < 0.002). However, there was no difference in mean blood glucose levels before or after the evening meal. Incidence of nocturnal hypoglycemia on overnight profiles was 43% lower on LIS/GLAR compared with R/NPH therapy; however, there was no difference in rates of self-reported symptomatic hypoglycemia. Total insulin dose required to achieve target blood glucose control was lower on LIS/GLAR (1.16 IU/kg) compared with R/NPH therapy (1.26 IU/kg, P < 0.005), but there was no significant difference in HbA 1c levels (LIS/GLAR versus R/NPH: 8.7 vs. 9.1%, P = 0.13). CONCLUSIONS —Combination therapy with insulin glargine plus lispro reduced the incidence of nocturnal hypoglycemia and was at least as effective as R/NPH insulin therapy in maintaining glycemic control in adolescents on multiple injection regimens. CV, coefficient of variation FBG, fasting blood glucose LIS/GLAR, prebedtime insulin glargine plus preprandial lispro MIR, multiple injection regimens R/NPH, prebedtime NPH insulin plus preprandial regular human insulin Footnotes Address correspondence and reprint requests to Professor David B. Dunger, Department of Paediatrics, University of Cambridge, Level 8, Addenbrooke’s Hospital, Box 116, Cambridge CB2 2QQ U.K. E-mail: dbd25{at}cam.ac.uk . Received for publication 25 July 2002 and accepted in revised form 17 November 2002. D.B.D. has received grant/research support from Aventis. A table elsewhere in this issue shows conventional and Système International (SI) units and conversion factors for many substances. DIABETES CARE
ISSN:0149-5992
1935-5548
DOI:10.2337/diacare.26.3.799