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Type 2 Diabetes MellitusNCT00653510

The Metabolic Effects of Acute Hyperglycemia in Patients With Type 2 Diabetes

A study testing Actrapid (human insulin) in people with Type 2 Diabetes Mellitus, run by University of Aarhus at 1 site in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the study is to characterize the changes in amino acid, lipid and glucose metabolism in patients with type 2 diabetes exposed to acute hyperglycemia. Moreover we wish to assess the effect of acute hyperglycemia on cardiac output. Read more about this study

Who is it for?
Ages 40 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Type 2 Diabetes Mellitus
What is being tested?
Actrapid (human insulin)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
18 participants
Where
1 siteDenmark
Study dates
Mar 2008to Nov 2010
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Written consent
  • Age 40-75 years old
  • BMI between 22 and 35
  • Type 2 diabetes treated with insulin (< 60 IE/day)

Who cannot join

  • Severe disease
  • Severe cardiac disease

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Department M (Endocrinology and Diabetes), Aarhus University Hospital

    Aarhus, Aarhus, 8000

Other trials in Denmark

About this study

Official title: The Effect of Acute Hyperglycemia on Cardiac Output, Amino Acid, Lipid and Glucose Metabolism in Patients With Type 2 Diabetes

The purpose of the study is to characterize the changes in amino acid, lipid and glucose metabolism in patients with type 2 diabetes exposed to acute hyperglycemia. Moreover we wish to assess the effect of acute hyperglycemia on cardiac output.

Read the detailed description

Cardiovascular disease is the main cause of death in modern Western societies. Obesity, diabetes and the metabolic syndrome are the main risk factors for cardiovascular disease. People with type 2 diabetes and no history of heart disease have a risk of myocardial infarction similar to the risk in non-diabetic patients with known heart disease.

However, the causal relationship between obesity, diabetes and cardiovascular disease is unclear. Insulin resistance leads to many metabolic abnormalities, including high circulating levels of free fatty acids (FFA). FFA induces insulin resistance and may lead to beta cell failure. In addition FFA may directly worsen the metabolic and electrochemical performance of the working heart. Moreover it is still unclear how acute hyperglycemia affects cardiac output.

In this study our purpose is to characterize the changes in amino acid, lipid and glucose metabolism in patients with type 2 diabetes exposed to acute hyperglycemia (blood glucose between 18 and 20 mmol/L) compared to the amino acid, lipid and glucose metabolism at a normal glucose level (blood glucose between 5 and 7 mmol/L). The results from the patients with type 2 diabetes will be compared with results from healthy controls examined in a fasting basal state. The patients must not suffer from any kind of serious heart disease and should be treated with insulin.

Moreover we wish to compare cardiac output at high and normal blood glucose levels, respectively. Cardiac output will primarily be assessed by doppler echocardiography.

Being tested
Actrapid (human insulin)
Keywords
Type 2 diabetes, Dysregulation, Metabolism, Cardiac output
Medical subject headings
Diabetes Mellitus, Type 2

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Actrapid (human insulin)Drug

    On day one the patients will receive glucose and insulin in order to reach a blood sugar around 18 and 20 mmol/L and on day two the patients will receive glucose and insulin in order to have a blood sugar around 5 and 7 mmol/L. On both days amino acid, lipid and glucose metabolism will be assessed by means of whole body isotope dilution.

Study groups in NCT00653510
Study groupRoleWhat they receive
EuglycemicExperimentalThe patients will be examined with a blood glucose at around 5-7 mmol/L.
Receives: Drug: Actrapid (human insulin)
HyperglycemicExperimentalThe patients will be examined with a blood glucose at around 18-20 mmol/L
Receives: Drug: Actrapid (human insulin)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Metabolic changes

    Measured: 6 hours

Secondary outcomes (1)
  1. Left ventricular function

    Measured: 6 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Apr 2008 (estimated)
  2. Study startMar 2008
  3. Primary completionNov 2010
  4. Study completionNov 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00653510
Sponsor's protocol ID
UK-M20070267
Status last verified
Sep 2012
First submitted
25 Mar 2008
Last updated
18 Sep 2012
Results posted
No
Data monitoring committee
No

Publications

  • Nielsen R, Norrelund H, Kampmann U, Botker HE, Moller N, Wiggers H. Effect of acute hyperglycemia on left ventricular contractile function in diabetic patients with and without heart failure: two randomized cross-over studies. PLoS One. 2013;8(1):e53247. doi: 10.1371/journal.pone.0053247. Epub 2013 Jan 8.

    PubMed 23308171
  • Nielsen TS, Kampmann U, Nielsen RR, Jessen N, Orskov L, Pedersen SB, Jorgensen JO, Lund S, Moller N. Reduced mRNA and protein expression of perilipin A and G0/G1 switch gene 2 (G0S2) in human adipose tissue in poorly controlled type 2 diabetes. J Clin Endocrinol Metab. 2012 Jul;97(7):E1348-52. doi: 10.1210/jc.2012-1159. Epub 2012 Apr 24.

    PubMed 22535977

Questions about this trial

What is this clinical trial studying?

A study testing Actrapid (human insulin) in people with Type 2 Diabetes Mellitus, run by University of Aarhus at 1 site in Denmark.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Sep 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Metabolic changes (time frame: 6 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00653510, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Sep 2012.

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