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

NCT ID: NCT00118950

Last Updated: 2008-12-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2001-03-31

Study Completion Date

2003-03-31

Brief Summary

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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.

Detailed Description

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Conditions

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Diabetes Mellitus, Type 2

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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4

Metformin plus placebo-Repgalinide. Double-masked, randomized. Duration: Four months.

Group Type ACTIVE_COMPARATOR

Metformin

Intervention Type DRUG

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

Placebo-Repaglinide.

Intervention Type DRUG

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

2

Repaglinide plus Placebo-Metformin. Double-masked, randomized. Duration: Four months.

Group Type ACTIVE_COMPARATOR

Repaglinide

Intervention Type DRUG

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

Placebo-Metformin.

Intervention Type DRUG

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

1

Run-in period: Treatment: Diet-only. Duration: One month.

Group Type OTHER

Diet-only.

Intervention Type OTHER

Diet-only treatment. Duration: One month.

3

Wash-out period: Treatment: Diet-only: Duration: One month.

Group Type OTHER

Diet-only.

Intervention Type OTHER

Diet-only treatment. Duration: One month.

Interventions

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Metformin

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

Intervention Type DRUG

Repaglinide

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

Intervention Type DRUG

Placebo-Metformin.

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

Intervention Type DRUG

Placebo-Repaglinide.

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

Intervention Type DRUG

Diet-only.

Diet-only treatment. Duration: One month.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

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.

Exclusion Criteria

* 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
* 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.
Minimum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Steno Diabetes Center Copenhagen

OTHER

Sponsor Role lead

Principal Investigators

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Allan A Vaag, M. D., Chief Physician

Role: STUDY_CHAIR

Steno Diabetes Center Copenhagen

Soeren S Lund, M. D.

Role: PRINCIPAL_INVESTIGATOR

Steno Diabetes Center Copenhagen

Locations

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Steno Diabetes Center

Gentofte Municipality, , Denmark

Site Status

Countries

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Denmark

Other Identifiers

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ReMet

Identifier Type: -

Identifier Source: org_study_id