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Non-Insulin-Dependent Diabetes MellitusPhase 4NCT00318656

24-Hour Glycemia: Rosiglitazone Versus Glimepiride In Type 2 Diabetes

A Phase 4 study testing rosiglitazone-metformin fixed dose combination and metformin + glimepiride in people with Non-Insulin-Dependent Diabetes Mellitus, run by GlaxoSmithKline.

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

A better glycemic control is associated with less complications (cardiac diseases, blindness, etcetera) for type 2 diabetic patients. The objective is to study if rosiglitazone may lead to a more regular glycemic pattern with less hyperglycemia and hypoglycemia episodes than with a sulphonylurea (glimepiride). Read more about this study

Who is it for?
Ages 40 to 80 years
Conditions the study is for
Non-Insulin-Dependent Diabetes Mellitus
What is being tested?
rosiglitazone-metformin fixed dose combination and metformin + glimepiride
How many people
23 participants
Where
No sites listed yet
Study dates
Nov 2005to Oct 2007
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Males and females aged 40 to 80 years
  • Diagnosis of type 2 diabetes mellitus for at least 6 months
  • Body mass index (BMI) ≥25kg/m2
  • 7%≥HbA1c ≤ 9% at visit 2
  • Treatment with metformin between 1.7g/day and 3g/day for at least 12 weeks prior to visit 1
  • Female subjects must be non-pregnant, post-menopausal, surgically sterile or using effective contraceptive measures
  • Written informed consent

Who cannot join

  • Use of any oral antidiabetic drug other than metformin within 12 weeks prior to screening
  • Significant hypersensitivity to thiazolidinediones and sulfonylureas or compounds with similar chemical structure
  • Subjects who have required the use of insulin for glycaemic control at any time in the past or subject with a history of metabolic acidosis including diabetic ketoacidosis
  • Subjects with clinically significant ongoing oedema or with a history of oedema in the 12 months prior to visit 1
  • Subjects with a history of severe hypoglycaemia
  • Anemia defined by haemoglobin concentration <11.0g/dL for males or <10.0g/dL for females
Show all 15Show fewer
  • Renal disease or renal dysfunction, e.g. as suggested by serum creatinine levels ≥135µmol/L in males and ≥110µmol/L in females
  • Presence of clinically significant hepatic disease (i.e. ALT, AST, total bilirubin or alkaline phosphatase >2.5 times the upper limit of the normal reference range)
  • Congestive heart failure (NYHA class I to IV), unstable or severe angina, recent myocardial infarction
  • Subjects with chronic diseases requiring periodic or intermittent treatment with oral or intravenous corticosteroids
  • Female who are lactating, pregnant, or planning to become pregnant
  • Any clinically significant abnormality identified at screening which in the judgement of the investigator makes the subject unsuitable for inclusion in the study (e.g. physical examination, laboratory test, ECG, ...)
  • Use of any investigational agent within 30 days or 5 half-lives (whichever is longer) prior to enrolment in this study
  • Active alcohol, drug or medication abuse within the last 6 months or any condition that would indicate the likelihood of poor subject compliance
  • Subjects not willing to comply with the procedures described in this protocol.

About this study

Official title: Comparison of the Effects of Rosiglitazone and Glimepiride, Both Given in Combination With Metformin, on 24-Hour Glycemia in Type 2 Diabetes Patients Not Controlled With Metformin Alone. A 3-Month Multicentre, Randomized, Parallel-Group, Open-Label Study.

A better glycemic control is associated with less complications (cardiac diseases, blindness, etcetera) for type 2 diabetic patients. The objective is to study if rosiglitazone may lead to a more regular glycemic pattern with less hyperglycemia and hypoglycemia episodes than with a sulphonylurea (glimepiride).

Being tested
rosiglitazone-metformin fixed dose combination, metformin + glimepiride
Keywords
type 2 diabetes, rosiglitazone, metformin, glimepiride, glycemia
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.

  • rosiglitazone-metformin fixed dose combinationDrug

  • metformin + glimepirideDrug

    Also called rosiglitazone-metformin fixed dose combination

What is being measured

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

  1. Duration of Hyperglycaemia (>126 mg/dL) in Hours at Baseline Compared to After 12 Weeks on Treatment

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.

    Measured: Baseline and 12 weeks

  2. Episodes of Hyperglycaemia (>126 mg/dL) at Baseline Compared to After 12 Weeks on Treatment

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.

    Measured: Baseline and 12 weeks

Secondary outcomes (15)
  1. Duration of Severe Hyperglycaemia (>150 mg/dL) in Hours at Baseline Compared to After 12 Weeks on Treatment

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.

    Measured: Baseline and 12 weeks

  2. Episodes of Severe Hyperglycaemia (>150 mg/dL) at Baseline Compared to After 12 Weeks on Treatment

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.

    Measured: Baseline and 12 weeks

  3. Duration of Hypoglycaemia (<80 mg/dL) in Hours at Baseline Compared to After 12 Weeks on Treatment

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.

    Measured: Baseline and 12 weeks

  4. Episodes of Hypoglycaemia (<80 mg/dL) at Baseline Compared to After 12 Weeks on Treatment

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.

    Measured: Baseline and 12 weeks

  5. Duration of Hypoglycaemia (<60 mg/dL) in Hours at Baseline Compared to After 12 Weeks on Treatment

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.

    Measured: Baseline and 12 weeks

  6. Episodes of Hypoglycaemia (<60 mg/dL) at Baseline Compared to After 12 Weeks on Treatment

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.

    Measured: Baseline and 12 weeks

  7. HbA1c (Glycosylated Hemoglobin)

    Uncontrolled HbA1c>8.5%. HbA1c and fasting blood glucose taken at hospital

    Measured: Baseline and 12 weeks

  8. 8-Iso Prostaglandin F2α (8-iso PGF2α) Excretion Rate

    8-Iso Prostaglandin F2α (8-iso PGF2α) excretion rate measured during the 24 hours preceding the CGM system removal. The nocturnal glycemia measured by CGM system will be defined as the average of glycemic values collected between midnight and breakfast time.

    Measured: Baseline and 12 weeks

  9. Glycaemia According to CGMS (Nocturnal), mg/dL

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.The nocturnal glycemia measured by CGM system will be defined as the average of glycemic values collected between midnight and breakfast time.

    Measured: Baseline and 12 weeks

  10. Glycaemia According to CGMS (Diurnal), mg/dL

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.The diurnal glycemia measured by CGM system will be the average of glycemic values recorded between breakfast time and midnight.

    Measured: Baseline and 12 weeks

  11. Glycaemia According to CGMS (Dawn), mg/dL

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations.The glycemia "at dawn" measured by CGM system will be defined as the average of glycemic values recorded between 4 AM and breakfast time.

    Measured: Baseline and 12 weeks

  12. Glycaemia According to CGMS (Total Area Under the Curve (AUC) for Values Above 1 mg/dL), mg/dL

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations. The concentrations of glucose will be assessed from the AUC calculations on glycaemic values measured by CGM system.

    Measured: Baseline and 12 weeks

  13. Glycaemia According to CGMS (Postprandial Incremental AUC or Values Above 1 mg/dL), mg/dL

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations. The concentrations of glucose will be assessed from the AUC calculations on glycaemic values measured by CGM system.

    Measured: Baseline and 12 weeks

  14. Glycaemia According to CGMS (Basal Incremental AUC or Values Above 1 mg/dL), mg/dL

    Continuous Glycemic Monitoring System, Medtronic (CGMS®) System Gold downloads data to a computer for evaluation of glucose variations. The concentrations of glucose will be assessed from the AUC calculations on glycaemic values measured by CGM system.

    Measured: Baseline and 12 weeks

  15. Glycaemia According to CGMS (MAGE), mg/dL

    Calculation of the Mean amplitude of glycemic excursion (MAGE) was obtained by measuring the arithmetic mean of the major glucose concentration increases or decreases on days 2 and 3 of glycaemic profile and then averaging results on the two days.

    Measured: Baseline and 12 weeks

Timeline

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

  1. First posted27 Apr 2006 (estimated)
  2. Study startNov 2005
  3. Primary completionOct 2007
  4. Study completionOct 2007

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
Parallel groups
Masking
None (open label)
Enrolment
23 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00318656
Sponsor's protocol ID
104988
Other IDs
AVAF4003
Status last verified
Apr 2009
First submitted
25 Apr 2006
Last updated
7 May 2009

Publications

  • Monnier L, Colette C, Comenducci A, Vallee D, Dejager S. Add-on therapies to metformin in type 2 diabetes: what modulates the respective decrements in postprandial and basal glucose? Diabetes Technol Ther. 2012 Oct;14(10):943-50. doi: 10.1089/dia.2012.0045. Epub 2012 Jul 9.

    PubMed 22775317

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing rosiglitazone-metformin fixed dose combination and metformin + glimepiride in people with Non-Insulin-Dependent Diabetes Mellitus, run by GlaxoSmithKline.

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 7 inclusion and 15 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 7 May 2009. Status can change between updates, so confirm with the study contact before making plans.

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?

Yes. Results are posted in the registry (first posted 18 Mar 2009). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Duration of Hyperglycaemia (>126 mg/dL) in Hours at Baseline Compared to After 12 Weeks on Treatment (time frame: Baseline and 12 weeks). The study lists 2 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 NCT00318656, 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 7 May 2009.

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