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CompletedNCT00771693Updated May 27, 2022

Effects of Insulin Treatment on Postprandial Platelet Activation in Patients With Non-insulin-dependent Diabetes Mellitus (NIDDM)

A Phase 4 interventional study of Insulin aspart (Novorapid®) in Type 2 Diabetes Mellitus and Postprandial Hyperglycemia, sponsored by Karolinska Institutet. Completed at 1 site in Sweden. Open to participants aged Up to 70 Years. Per ClinicalTrials.gov, last updated 2022-05-27.

Sponsored by Karolinska Institutet · Phase 4, Interventional, and Basic science

Phase
Phase 4
Study type
Interventional
Enrollment
18
Allocation
Randomized
Ages
Up to 70 Years
Sex
All
01

Study summary

The postprandial phase in diabetic patients is characterized by a rapid increase in blood glucose levels, increase in platelet aggregation, LDL oxidation and over production of thrombin.

The aim of the study is to determine whether meal induced platelet activation is related to post-prandial hyperglycemia, and can be attenuated by good postprandial glucose control with rapidly acting insulin in patients with T2DM.

Read the detailed description

Each patient is admitted in the fasting state, on 3 different occasions . Blood glucose levels are normalized using intravenous infusion of insulin aspart , to a blood glucose level of 6-7 mmol/l. 15 minutes after normalization ,and right before a standardized meal, the patient is given a subcutaneous injection of insulin aspart 0.1 U/kg, 0.2 U/kg or placebo. The order of injections in the cross over study is randomized and blinded to the patient and to the investigators. The patient eats the meal and is followed up for 90 minutes after completion of the meal.

Blood tests for platelet function and other parameters are taken at 3 main points: 1. before glucose normalization.

  1. 15 minutes after glucose normalization, and right before the meal. 3. 90 minutes after the meal.

Platelet function is evaluated by flow cytometry in whole blood (P- Selectin expression, Fibrinogen binding,aggregate formation: platelet- leukocyte, platelet-platelet, platelet-monocyte). Agonists that are used for platelet activation in flow cytometry are the thromboxane analogue U46619, ADP, and a collagen peptide that activates GPVI. Platelet adhesion is measured by the IMPACT cone and platelet analyser.

02

Conditions studied

  • Type 2 Diabetes Mellitus
  • Postprandial Hyperglycemia

Keywords

  • NIDDM
  • Platelet Activation
  • Postprandial hyperglycemia
  • insulin
03

In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's enrollment of 18 is below the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

Karolinska Institutet is the lead sponsor of 1,113 studies on the registry; 267 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Type II Diabetes Mellitus.
  • Antecubital forearm veins allowing technically good sampling for platelet studies.
  • HbA1c 6-9 % (Mono-S method).
  • Below 70 years

Exclusion criteria

Exclusion Criteria:

  • History of a cardiovascular disease; Ischemic heart disease, Stroke, Peripheral vascular disease.
  • Acute or chronic renal or liver disease
  • Contraindication to insulin treatment
  • Treatment with Glitazones, Sulphonylurea, antiplatelet drugs,
  • Thrombocytopenia \<150 X109/l.
05

Study design

Phase
Phase 4
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Double (Participant, Investigator)
Enrollment
18 participants (actual)

Interventions

  • DrugInsulin aspart (Novorapid®)

    a cross-over study with subcutaneous injection of insulin aspart 0.1U/kg, 0.2u/kg or placebo, before the meal, on 3 different occasions.

    Also known as: NovoRapid (Novo-Nordisk)

06

What researchers measure

Primary outcomes

  1. To evaluate if platelet activation following a carbohydrate rich meal is related to the post-prandial hyperglycemia, and thus can be attenuated by premeal insulin treatment in patients with T2DM.

    Time frame: 90 minutes after the meal

  2. Co- primary platelet response variables: U46619 stimulated platelet P- selectin activation, platelet-leukocyte aggregation, platelet-platelet aggregates and platelet-monocyte aggregates.

    Time frame: After completion of the study in 20 patients

Secondary outcomes

  1. To elucidate if short-term lowering of blood glucose by insulin infusion (pretreatment standardization of blood glucose) reduces platelet activity in patients with T2DM.

    Time frame: After completion of the glucose normalization (before the meal)

07

Study locations

1 site
  • Department of Medicine, Clinical pharmacology Unit, Karolinska University Hospital, Solna.
    Stockholm, SE 171 76, Sweden
08

References and documents

Publications

  • Spectre G, Ostenson CG, Li N, Hjemdahl P. Postprandial platelet activation is related to postprandial plasma insulin rather than glucose in patients with type 2 diabetes. Diabetes. 2012 Sep;61(9):2380-4. doi: 10.2337/db11-1806. Epub 2012 Jun 11. PubMed 22688337 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 27, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00771693
Lead sponsor
Karolinska Institutet
Responsible party
Paul Hjemdahl (Professor, Karolinska Institutet) — Principal investigator
First posted
Oct 13, 2008
Start date
May 2007
Primary completion
Jul 2011
Completion
Jul 2011
Last update
May 27, 2022

Study contacts

Paul Hjemdahl, MD, PhD
principal investigator · Department of Medicine, Clinical Pharmacology Unit, Karolinska institute, Stockhom, Sweden

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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