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Diabetes Mellitus, Type 2Phase 4NCT00118950

Effect of Metformin Versus Repaglinide Treatment in Non-Obese Type 2 Diabetic Patients Uncontrolled by Diet

A Phase 4 study testing Metformin, Repaglinide and Diet-only. in people with Diabetes Mellitus, Type 2, run by Steno Diabetes Center 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

Background: Metformin is the first drug of choice in obese patients with type-2 diabetes (T2DM) due to its antiglycaemic as well as its cardiovascular protective potentials. In non-obese T2DM patients insulin-secretagogues are empirically used as first choice. Read more about this study

Who is it for?
Ages 40 years and older
Conditions the study is for
Diabetes Mellitus, Type 2
What is being tested?
Metformin, Repaglinide and Diet-only.
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
100 participants
Where
1 siteDenmark
Study dates
Mar 2001to Mar 2003
Phase
Phase 4
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Type-2 diabetes, defined as:
  • Age at onset of diabetes ≥ 40 years
  • Fasting serum C-peptide ≥ 300 pmol/l or a non-fasting or glucagon-stimulated serum C-peptide ≥ 600 pmol/l
  • No history of ketonuria or ketoacidosis.
  • BMI ≤ 27 kg/m2.
  • Fasting plasma-glucose ≥ 6.5 mmol/l after at least one month of diet-only treatment.
  • HbA1c ≤ 9.5% at ongoing oral anti-hyperglycaemic agents. HbA1c ≥ 6.5% after minimum one month of diet-only treatment.
  • Weight-loss of no more than 5.0 kg during the last 6 months prior to enrolment.

Who cannot join

  • Type-1 diabetes
  • Insulin-treated type-2 diabetes
  • Secondary diabetes, heart-failure
  • Serum-creatinine above the upper limit
  • Serum-ASAT elevated more than 3 fold above the upper limit
  • Factor II-VII-X decreased below 0.7
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  • Ongoing coexisting illnesses with a life-shortening prognosis
  • Mental retardation or reduced intellectual behaviour
  • Pregnancy
  • History of drug-abuse or HbA1c>10.5% at two separate visits with at least one month interval during treatment-periods.

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Steno Diabetes Center

    Gentofte Municipality, 2820

Other trials in Denmark

About this study

Official title: Effect of Metformin Versus Repaglinide Treatment on Glycemic Control and Non-Glycaemic Cardiovascular Risk Factors in Non-Obese Type 2 Diabetic Patients Uncontrolled by Diet

Background: Metformin is the first drug of choice in obese patients with type-2 diabetes (T2DM) due to its antiglycaemic as well as its cardiovascular protective potentials. In non-obese T2DM patients insulin-secretagogues are empirically used as first choice. The aim of this study was to evaluate the effect of metformin versus an insulin-secretagogue, repaglinide on glycaemic regulation and non-glycaemic cardiovascular risk markers in non-obese patients with T2DM.

Methods: Single-center, randomised, double-masked, double-dummy, cross-over-study of 96 non-obese (BMI ≤ 27 kg/m2) Caucasian T2DM-patients. After a one month run-in on diet-only treatment, patients were randomised to either repaglinide 2mg three times a day (t.i.d). followed by metformin 1g twice a day (b.i.d.) or vice versa each for a period of four months with a one month wash-out between interventions.

Being tested
Metformin, Repaglinide, Placebo-Metformin., Placebo-Repaglinide., Diet-only.
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.

  • MetforminDrug

    Tablet Metformin 500 mg; Dosage: 1000 mg two times daily. Duration: Four months.

  • RepaglinideDrug

    Tablet Repaglinide 1 mg; Dosage: 2 mg three times daily. Duration: Four months.

  • Placebo-Metformin.Drug

    Tablet Placebo (corresponding to 500 mg Metformin). Dosage: 2 tablets two times daily. Duration: Four months.

  • Placebo-Repaglinide.Drug

    Tablet Placebo (corresponding to 1 mg Repaglinide). Dosage: 2 tablets three times daily. Duration: Four months.

  • Diet-only.Other

    Diet-only treatment. Duration: One month.

Study groups in NCT00118950
Study groupRoleWhat they receive
4Active comparatorMetformin plus placebo-Repgalinide. Double-masked, randomized. Duration: Four months.
Receives: Drug: Metformin; Drug: Placebo-Repaglinide.
2Active comparatorRepaglinide plus Placebo-Metformin. Double-masked, randomized. Duration: Four months.
Receives: Drug: Repaglinide; Drug: Placebo-Metformin.
1OtherRun-in period: Treatment: Diet-only. Duration: One month.
Receives: Other: Diet-only.
3OtherWash-out period: Treatment: Diet-only: Duration: One month.
Receives: Other: Diet-only.

What is being measured

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

  1. HaemoglobinA1c

Secondary outcomes (9)
  1. Home-monitored 7-point plasma-glucose profiles

  2. Body-weight

  3. Waist- and hip-circumference

  4. Fasting and postprandial (after a standard test-meal) measures of plasma-glucose, insulin, c-peptide, free fatty acids, lipoproteins, triglycerides and other markers related to lipid-metabolism (e.g. apo-lipoproteins, lipoprotein particle size etc.).

  5. Biomarkers related to inflammation, endothelial dysfunction and fibrinolysis (e.g. hs-CRP, TNF-alpha, IL-6, ICAM, VCAM, E-selectin, vWF, PAI-1 and t-PA, adiponectin, ADMA, AGE-peptides).

  6. Albuminuria and 24-hour blood-pressure measurements.

  7. Platelet aggregation, markers of platelet activity and fibrinolytic markers fasting as well as before and after physical activity.

  8. DNA for genotyping.

  9. Adverse events and safety variables (e.g. hypoglycaemia, haemoglobin, white blood cell count, cobalamine and folate).

Timeline

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

  1. First posted12 Jul 2005 (estimated)
  2. Study startMar 2001
  3. Study completionMar 2003

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
100 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00118950
Sponsor's protocol ID
ReMet
Status last verified
Dec 2008
First submitted
1 Jul 2005
Last updated
8 Dec 2008
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Metformin, Repaglinide and Diet-only. in people with Diabetes Mellitus, Type 2, run by Steno Diabetes Center 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 8 inclusion and 10 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 8 Dec 2008. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

HaemoglobinA1c. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 8 Dec 2008.

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