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Published on: November 16, 2011
Insulin lispro lowers postprandial glucose in prepubertal children with diabetes
L C Deeb1, J H Holcombe, R Brunelle
1Children's Clinic, Tallahassee, Florida 32308, USA. lcdeeb@attglobal.net
Insights
Insulin lispro, a rapid-acting insulin analog, effectively lowers postprandial glucose in children with type 1 diabetes when given before meals. Post-meal administration showed comparable results to regular human insulin given pre-meal.
Area of Science:
- Pediatric Endocrinology
- Diabetes Management
- Pharmacology
Background:
- Type 1 diabetes in children requires careful glucose control.
- Optimizing mealtime insulin regimens is crucial for managing postprandial hyperglycemia.
- Insulin lispro offers a rapid-acting alternative to traditional insulins.
Purpose of the Study:
- To compare the glucose-lowering efficacy of insulin lispro versus regular human insulin in prepubertal children with type 1 diabetes.
- To evaluate the impact of insulin lispro timing (pre-meal vs. post-meal) on glycemic control.
- To assess the safety profile of different insulin regimens.
Main Methods:
- A 3-way crossover, open-label study involving 61 prepubertal children with type 1 diabetes.
- Randomized assignment to regular human insulin (pre-meal) or insulin lispro (pre-meal or post-meal) combined with basal insulin.
- Treatment periods of 3 months, with measurements of HbA1c and home glucose monitoring.
Main Results:
- Insulin lispro given before breakfast and dinner significantly lowered 2-hour postprandial glucose compared to regular human insulin.
- Post-meal insulin lispro resulted in glucose levels between pre-meal insulin lispro and pre-meal regular human insulin.
- No significant differences were observed in HbA1c levels, adverse events, or hypoglycemia rates among the groups.
Conclusions:
- Insulin lispro administered before meals is a safe and effective option for lowering postprandial glucose in prepubertal children.
- Post-meal insulin lispro provides glycemic benefits comparable to pre-meal regular human insulin.
- Timing of insulin lispro administration impacts postprandial glucose control in pediatric diabetes management.
Objective:
This study compared the glucose-lowering effect of insulin lispro, given before or after meals, with regular human insulin given before meals in prepubertal children with diabetes.
Research Design And Methods:
A 3-way crossover, open-label study involving 61 prepubertal children (ages 2.9-11.4 years) with type 1 diabetes. The children were randomly assigned to receive regular human insulin 30 to 45 minutes before meals, insulin lispro within 15 minutes before or immediately after meals, combined with basal insulin. Each treatment lasted 3 months. Hemoglobin A(1c) levels and home glucose monitoring profiles were measured at the end of each treatment period.
Results:
Treatment with insulin lispro before breakfast resulted in lower 2-hour postprandial glucose values than regular human insulin (11.7 +/- 4.4 mmol/L vs 15.0 +/- 5.4 mmol/L). Similarly, insulin lispro given before dinner resulted in lower blood glucose values 2 hours postprandially (8.8 +/- 5.0 mmol/L vs 10.8 +/- 5.4 mmol/L) than regular human insulin. When insulin lispro was administered after meals, the 2-hour glucose levels were between those seen with either insulin lispro or regular human insulin given before meals. The number and types of adverse events, the rates of hypoglycemia, and the HbA(1c) levels did not differ among the 3 therapies.
Conclusions:
In prepubertal children, insulin lispro given before meals is safe and significantly lowers postprandial glucose levels after breakfast and dinner compared with regular human insulin, and insulin lispro given after the meal provides similar benefits as regular human insulin before the meal.
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