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Updated: Sep 25, 2026

Improving IV Insulin Administration in a Community Hospital
Published on: June 11, 2012
[Effectiveness of pre- and postprandial Humalog in adolescents with type 1 diabetes]
Insights
Administering Humalog insulin after meals in adolescents with type 1 diabetes offers good glucose control and safety. This approach improves quality of life without increasing hypoglycemia risk.
Area of Science:
- Endocrinology
- Metabolic Disorders
- Pharmacology
Context:
- Type 1 diabetes management in adolescents.
- Evaluating rapid-acting insulin efficacy.
- Glycemic control strategies.
Purpose:
- To assess the glycemic response to pre- and postprandial Humalog administration in type 1 diabetic adolescents.
- Compare the efficacy and safety of Humalog given before versus after meals.
- Evaluate impact on HbA1c and hypoglycemic episodes.
Summary:
- A 3-month study in 47 adolescents (ages 12-18) with type 1 diabetes compared pre- vs. postprandial Humalog. Both groups showed similar glycemic control and HbA1c reduction (8.01% to 7.63%). Postprandial administration resulted in fewer mild hypoglycemic events.
- Patients receiving Humalog postprandially demonstrated comparable glycemic control to those receiving it preprandially, with a statistically significant reduction in mild hypoglycemic episodes (0.19 vs. 0.32 episodes/person/day).
Impact:
- Postprandial Humalog administration is a safe and effective strategy for managing type 1 diabetes in adolescents.
- Flexibility in Humalog timing allows for better matching of insulin doses to food intake, enhancing patient quality of life.
- Findings support individualized insulin therapy regimens to optimize glycemic control and minimize adverse events.
Unlabelled:
The aim of the study was to evaluate the glycaemic response to pre- and postprandial Humalog.
Material:
The study involved 47 type 1 diabetic adolescents between the ages 12 and 18 (mean 15.5) and the duration of diabetes from 1 to 13 years (mean 5.16).
Methods:
All patients received Humalog in intensive therapy during 3-month period: 29 persons just before the meal and 18 immediately after the meal. All patients were injected with basal insulin twice a day (Humulin N). HbA1c values were determined at the beginning and the end of study. Patients' blood glucose levels were measured preprandially and 1 and 2 hours after eating their first bite of breakfast (noted in 1, 6 and 12 week of observation). At the end of observation (after 3 months) the analysis of the blood glucose levels after pre- and postprandial administration of Humalog insulin was performed. Blood samples were obtained at -40, -20, 0, 15, 60, 90, 120, 150 and 180 minute relative to the start of the meal.
Results:
The mean HbA1c value decreased from 8.01 to 7.63%. The patients' preprandial glucose levels 1 and 2 hours after meal were similar in two groups in each measurement (1, 6, 12 week). The pre- and postprandial glucodynamics were similar in the two groups. The number of mild hypoglycaemic episodes was slightly higher in the group receiving Humalog before meal (0.32 vs. 0.19 episodes/person/day - p<0.05).
Conclusion:
Postprandial Humalog insulin may provide good postprandial glucodynamic control because it is safe, insulin dose can be matched to the actual food intake and it is not associated with an increase in the frequency of hypoglycaemic events. The possibility of the pre- and postprandial Humalog insulin administration improves the quality of life of patients with diabetes.
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