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Type 2 DiabetesNCT01507597

The Effect of GLP-1 on the Inhibition of Glucagon Secretion

A study testing Native human Glucagon-like Peptide-1 ( GLP-1(7-36)) and NaCl in people with Type 2 Diabetes and Type 1 Diabetes, run by University Hospital, Gentofte, Copenhagen 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

Diabetes(both types) are recognized by high levels of glucagon in the circulation. Glucagon is known to increase blood glucose, and might therefore contribute to the respective diseases. Under some circumstances the gut hormone GLP-1 inhibits the glucagon secretion. Read more about this study

Who is it for?
Ages 18 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Type 2 Diabetes, Type 1 Diabetes
What is being tested?
Native human Glucagon-like Peptide-1 ( GLP-1(7-36)) and NaCl
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteDenmark
Study dates
Dec 2011to Aug 2013
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 18 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Patients with T2DM
  • Above the age of 35 years, treatment with diet or oral anti-diabetic medication. Diagnosed with T2DM in at leat three months in advance(WHO criterion)
  • Normal hemoglobin
  • Informed content Patients with T1DM
  • T1DM (WHO criterion)
  • Plasma-C-peptid negative due to arginin-test
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  • Normal hemoglobin
  • age> 18 years
  • Informed content Healthy subjects
  • Normal fasting plasma glucose and normal glucose tolerance (WHO criterion)
  • Normal hemoglobin
  • Age >18 years
  • Informed content

Who cannot join

  • Patients with T2DM
  • Treatment with glitazones and/or gliptins
  • Inflammatory bowels disease
  • previous bowel resection with or without stomy
  • Nephropathy (serum creatinin >150 µM and/or albuminuria)
  • Liver disease (serum alanine-aminotransferase (ALAT) and/or serum aspartate-aminotransferase (ASAT) >2×normal values)
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  • Medical treatment impossible to break for 12h.
  • Age >80 years Patients with T1DM
  • Overweight (BMI >30 kg/m2)
  • Inflammatory bowels disease
  • previous bowel resection with or without stomy
  • Nephropathy (serum creatinin >150 µM and/or albuminuria)
  • Liver disease (serum alanine-aminotransferase (ALAT) and/or serum aspartate-aminotransferase (ASAT) >2×normal values)
  • Medical treatment impossible to break for 12h (except treatment with insulin).
  • Age >80 years
  • Healthy subjects
  • Diabetes
  • Prediabetes (impaired glucose tolerance and/or impaired fasting plasma glucose)
  • First order relatives with diabetes
  • Overweight (BMI >30 kg/m2)
  • Inflammatory bowels disease
  • previous bowel resection with or without stomy
  • Nephropathy (serum creatinin >150 µM and/or albuminuria)
  • Liver disease (serum alanine-aminotransferase (ALAT) and/or serum aspartate-aminotransferase (ASAT) >2×normal values)
  • Medical treatment impossible to break for 12h.
  • Age >80 years

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Gentofte University Hospital

    Hellerup, DK-2900

Other trials in Denmark

About this study

Diabetes(both types) are recognized by high levels of glucagon in the circulation.

Glucagon is known to increase blood glucose, and might therefore contribute to the respective diseases. Under some circumstances the gut hormone GLP-1 inhibits the glucagon secretion.

The investigators aim to identify the impact of GLP-1 on the glucagon secretion, at increasing blood glucose levels in healthy subjects, in patients with type 2 diabetes, and in patients with type 1 diabetes.

The investigators think that the effect of GLP-1 on the glucagon secretion might be dependent of blood glucose levels.

Being tested
Native human Glucagon-like Peptide-1 ( GLP-1(7-36)), NaCl
Keywords
Glucagon-like peptide-1, Glucagon, Normal physiology, T2DM, T1DM
Medical subject headings
Diabetes Mellitus, Type 2, Diabetes Mellitus, Type 1

What participants receive

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

  • Native human Glucagon-like Peptide-1 ( GLP-1(7-36))Drug

    Continuous iv. infusion of the native gut hormone GLP-1 (0.2 pmol/kg/min) for 210 minutes.

    Combined with a step wise glucose clamp using 20% w/w glucose iv. infusion reaching plasma glucose value of 15 mM starting at fasting plasma glucose (30 min per step)

  • NaClDrug

    Continuous iv. saline infusion (NaCl Isotonic) for 210 minutes. Combined with a step wise glucose clamp using 20% w/w glucose iv. infusion reaching plasma glucose value of 15 mM starting at fasting plasma glucose (30 min per step)

  • Native human Glucagon-like Peptide-1 ( GLP-1(7-36))Drug

    Continuous iv. infusion of the native gut hormone GLP-1 (0.4 pmol/kg/min) for 210 minutes.

    Combined with a step wise glucose clamp using 20% w/w glucose iv. infusion reaching plasma glucose value of 15 mM starting at fasting plasma glucose (30 min per step)

  • Native human Glucagon-like Peptide-1 ( GLP-1(7-36))Drug

    Continuous iv. infusion of the native gut hormone GLP-1 (0.8 pmol/kg/min) for 210 minutes.

    Combined with a step wise glucose clamp using 20% w/w glucose iv. infusion reaching plasma glucose value of 15 mM starting at fasting plasma glucose (30 min per step)

Study groups in NCT01507597
Study groupRoleWhat they receive
Healthy SubjectsOtherNot described
Receives: Drug: Native human Glucagon-like Peptide-1 ( GLP-1(7-36)); Drug: NaCl
T2DMOtherNot described
Receives: Drug: Native human Glucagon-like Peptide-1 ( GLP-1(7-36)); Drug: NaCl
T1DMOtherNot described
Receives: Drug: Native human Glucagon-like Peptide-1 ( GLP-1(7-36)); Drug: NaCl

What is being measured

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

  1. Plasma Glucagon response to the GLP-1 infusion / glucose clamp

    The collection of blood samples will be done during the 210 min GLP-1 infusion / glucose clamp-session

    Measured: At 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210 min

  2. Plasma GLP-1 response to the GLP-1 infusion / glucose clamp

    The collection of blood samples will be done during the 210 min GLP-1 infusion / glucose clamp-session

    Measured: At 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210 min

  3. Plasma Glucose response to the GLP-1 infusion / glucose clamp

    The collection of blood samples will be done during the 210 min GLP-1 infusion / glucose clamp-session

    Measured: At 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210 min

Secondary outcomes (5)
  1. Resting Metabolic Rate response to the GLP-1 infusion / glucose clamp

    Assessed by indirect calorimetry during the GLP-1 infusion / glucose clamp-session

    Measured: at 0, 120, and 180 min

  2. Hunger scores response to the GLP-1 infusion / glucose clamp

    Assessed by VAS during the 210 min GLP-1 infusion / glucose clamp-session

    Measured: At 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210 min

  3. plasma Insulin response to the GLP-1 infusion / glucose clamp

    The collection of blood samples will be done during the 210 min GLP-1 infusion / glucose clamp-session

    Measured: At 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210 min

  4. plasma GIP response to the GLP-1 infusion / glucose clamp

    The collection of blood samples will be done during the 210 min GLP-1 infusion / glucose clamp-session

    Measured: At 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210 min

  5. Food Intake

    Assessed by ad'libitum meal after the 210 min GLP-1 infusion / glucose clamp.

    Measured: at 210 min

Timeline

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

  1. First posted11 Jan 2012 (estimated)
  2. Study startDec 2011
  3. Primary completionAug 2013
  4. Study completionAug 2013

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
Single blind
Who is masked
Participant
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01507597
Sponsor's protocol ID
GlukaStase
Other IDs
H-3-2011-088
Status last verified
Dec 2013
First submitted
13 Dec 2011
Last updated
10 Dec 2013
Results posted
No
Data monitoring committee
No

Publications

  • Bagger JI, Grondahl MFG, Lund A, Holst JJ, Vilsboll T, Knop FK. Glucagonostatic Potency of GLP-1 in Patients With Type 2 Diabetes, Patients With Type 1 Diabetes, and Healthy Control Subjects. Diabetes. 2021 Jun;70(6):1347-1356. doi: 10.2337/db20-0998. Epub 2021 Mar 15.

    PubMed 33722838

Questions about this trial

What is this clinical trial studying?

A study testing Native human Glucagon-like Peptide-1 ( GLP-1(7-36)) and NaCl in people with Type 2 Diabetes and Type 1 Diabetes, run by University Hospital, Gentofte, Copenhagen 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 13 inclusion and 26 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 10 Dec 2013. 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?

Plasma Glucagon response to the GLP-1 infusion / glucose clamp (time frame: At 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210 min). The study lists 3 primary outcomes in all. 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 NCT01507597, which also lists 1 linked publication.

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 10 Dec 2013.

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