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Clinical Trial Summary

Normoglycemia is important for the outcome of surgical and medical conditions. Insulin infusions have been studied to achieve normoglycemia during these circumstances and have proved to be useful. Insulin given by subcutaneous injections has longer duration compared to intravenous given insulin which makes it more difficult to control. The hypothesis behind the trial is the concept that insulin infusion is more effective in reaching normoglycemia in diabetic subjects during foot ulcer infection and surgical wound infection.

- The study evaluates a target controlled insulin infusion or conventional therapy as antidiabetic treatment during foot ulcer infection and surgical wound infection.

- Secondary efficacy parameter will be hospital stay, laboratories for inflammation and oxidative stress.


Clinical Trial Description

Introduction:

Normoglycemia is important for the outcome of acute surgical and medical conditions. Different insulin infusions have been studied to achieve normoglycemia and have proved to be useful. Insulin given by subcutaneous injections has duration between 3- 36 hours depending on the insulin brand and injection site compared to 10 minutes for intravenous given insulin. Different insulin infusions have been studied to achieve normoglycemia but the biological and chemical effects of insulin infusions have not been studied during foot ulcer infection and surgical wound infection in patients with diabetes. Therefore, we aim to investigate the importance of normoglycemia for the optimal treatment during foot ulcer infection and surgical wound infection among diabetics.

Hypothesis:

Target controlled insulin infusion is more effective in reducing hyperglycemia, improve healing of inflammation and infection in diabetics compared to conventional antidiabetic therapy.

Study Design:

This is a randomized prospective, open controlled trial of target controlled insulin infusion vs conventional antidiabetic therapy in diabetic patients. Diabetics treated for foot ulcer infection or surgical wound infection, who met eligibility criteria and choose to participate will be included and randomized.

Duration of study:

The infusion starts when patients who met the eligibility criteria has signed the informed consent. The intervention group continues for tree full days with insulin infusion. After the transition day (the fourth day) multiple doses of mixinsulin continues until the study ends 4 weeks after the randomization.

Selection of patients:

Patients with diabetic foot ulcer infection or surgical wound infection will be enrolled. At least 90 patients will be included during a 24 month-enrollment period.

Treatment:

Eligible patients will be randomized to insulin infusion (group 1) for 3 days or therapy according to clinical practise (group 2).

Group 1 (intervention group):

The insulin infusion starts when the patient full fill the eligibility criteria and has signed the informed consent. It controls by regular capillary plasma glucose tests and continues for tree days. The infusion stop on the fourth day, the insulin demand is estimated from the last 24 infusion hours by a specific algorithm and divided to 2-4 equal mealtime doses of mixinsulin. The first mealtime dose is given to the breakfast on the fourth day and the infusion continues for another 2 hours where after it is stopped. After the transition day (the fourth day) multiple doses of mixinsulin continues until the study ends 4 weeks after the randomization.

All patients will have a stop visit at the study end.

Patient assignment to treatment group:

Patients recruited in the clinic and hospital wards and meeting the eligibility criteria and has signed the informed consent will be randomized. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT00700362
Study type Observational
Source Karolinska Institutet
Contact
Status Withdrawn
Phase
Start date December 2011
Completion date December 2016

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