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The Copenhagen Insulin and Metformin Therapy Trial

The Effect of Metformin Versus Placebo, Including Three Insulin-Analogue Regimens With Variating Postprandial Glucose Regulation, on CIMT in T2DM Patients - A Randomized, Multicenter Trial

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00657943
Acronym
CIMT
Enrollment
415
Registered
2008-04-14
Start date
2008-04-30
Completion date
2012-12-31
Last updated
2014-02-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Arteriosclerosis, Atherosclerosis, Type 2 Diabetes

Keywords

carotid, intima, media, thickness, insulin, metformin

Brief summary

Type 2 Diabetes Mellitus patients (T2DM) have an increased mortality rate due to macrovascular disease. The primary objective of the study is to evaluate the effect of an 18-month treatment with metformin versus placebo in combination with one of three insulin analogue regimens following a treat-to-target principle. The primary outcome measure is change in wall thickness of the carotic arteries(CIMT)measured by ultrasound. A total of 900 patients with T2DM and HbA1c above 7.5% will be included.

Interventions

DRUGmetformin

metformin tablets 2 g x 2

DRUGinsulin detemir

insulin as requested

DRUGinsulin aspart + insulin aspart protamin

insulin as requested

DRUGInsulin aspart

insulin as requested

Sponsors

Hvidovre University Hospital
CollaboratorOTHER
Hillerod Hospital, Denmark
CollaboratorOTHER
Frederiksberg University Hospital
CollaboratorOTHER
University Hospital, Gentofte, Copenhagen
CollaboratorOTHER
Rigshospitalet, Denmark
CollaboratorOTHER
Bispebjerg Hospital
CollaboratorOTHER
Herlev Hospital
CollaboratorOTHER
Zealand University Hospital
CollaboratorOTHER
Copenhagen Trial Unit, Center for Clinical Intervention Research
CollaboratorOTHER
Novo Nordisk A/S
CollaboratorINDUSTRY
Steno Diabetes Center Copenhagen
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
30 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Males and females over 30 years of age * Type 2 diabetes * Body mass index (BMI): 25.0-39.9 kg/m2 * HbA1c above 7.5 % * Antidiabetic tablet-treatment during 1 year minimum AND / OR * Insulin treatment during a minimum of 3 months * Negative pregnancy test * Signed, informed consent

Exclusion criteria

* MI, coronary revascularization, TCI,or apoplexy within the last 3 months * TCI with verified stenosis of above 70% * Heart failure (NYHA class III or IV) * Former cancer patient, unless disease-free period of more than 5 years * estimated creatinine clearance \< 60 ml/min Liver disease * Alcohol abuse * Drug abuse * Retinopathy with on-going laser treatment at start of study * Other acute or chronic serious disease leading to hypoxia * Pregnant or breastfeeding women * Women of child-bearing potential, not using contraceptives * Allergy to medication used in the study * Incapable of understanding the nature of the informed consent

Design outcomes

Primary

MeasureTime frame
Carotid intima media thickness18 months

Secondary

MeasureTime frame
adverse events18 months

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 6, 2026