Humalog Mix25 improves 24-hour plasma glucose profiles compared with the human insulin mixture 30/70 in patients with type 2 diabetes mellitus.

Abstract

OBJECTIVE:

To compare the effects of Humalog Mix25 (Humalog Mix75/25 in the USA) (Mix25) and human insulin 30/70 (30/70) on the 24-hour inpatient plasma glucose (PG) profile in patients with type 2 diabetes mellitus (T2DM).

DESIGN:

A randomised, open-label, 8-week crossover study. Study insulins were injected twice daily, 5 minutes before breakfast and dinner.

SETTING:

Four-week outpatient (dose-adjustment) treatment phase, and 3-day inpatient (test) phase.

PATIENTS:

Twenty-five insulin-treated patients with T2DM (ages 40-66 years), mean (+/- standard error of the mean) (SEM) HbA1c 7.7% +/- 0.23%, and body mass index (BMI) 29.3 +/- 0.83 kg/m2.

OUTCOME MEASURES:

24-hour PG profiles, PG excursions after meals, PG area under the curve (AUC), and 30-day hypoglycaemia rate.

RESULTS:

The 2-hour PG excursions following breakfast (5.5 +/- 0.34 v. 7.2 +/- 0.34 mmol/l, p = 0.002) and dinner (2.4 +/- 0.27 v. 3.4 +/- 0.27 mmol/l, p = 0.018) were smaller with Mix25 than with 30/70. PG AUC between breakfast and lunch was smaller with Mix25 than with 30/70 (77.6 +/- 3.8 v. 89.5 +/- 4.3 mmol/h/ml, p = 0.001). PG AUC between lunch and dinner, dinner and bedtime, and bedtime and breakfast did not differ between treatments. Pre-meal and nocturnal PG were comparable. The postprandial insulin requirement for lunch meals was supplied equally by the two insulin treatments. The thirty-day hypoglycaemia rate was low (Mix25 0.049 +/- 0.018 v. 30/70 0.100 +/- 0.018 episodes/patient/30 days, p = 0.586) for both treatments.

CONCLUSION:

In patients with T2DM, Mix25 improved the 24-hour PG profile with lower postprandial PG excursions than with human insulin 30/70.

• Authors: M Herz, V Arora, B N Campaigne, H E Scholtz, M A Potgieter, W Mollentze
• Journal: South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde (S Afr Med J) Vol. 93 Issue 3 Pg. 219-23 (Mar 2003) ISSN: 0256-9574 [Print] South Africa
• PMID: 12768948 (Publication Type: Clinical Trial, Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)

Chemical References

• Blood Glucose
• Hypoglycemic Agents
• Insulin
• Insulin Lispro

Topics

• Adult
• Aged
• Blood Glucose (analysis, drug effects)
• Cross-Over Studies
• Diabetes Mellitus, Type 2 (blood, drug therapy)
• Female
• Humans
• Hypoglycemic Agents (administration & dosage, therapeutic use)
• Insulin (administration & dosage, analogs & derivatives, therapeutic use)
• Insulin Lispro
• Male
• Middle Aged
• Pilot Projects
• Time Factors