INSUlin Regimens and VASCular Functions (INSUVASC)

February 20, 2013 updated by: Assistance Publique - Hôpitaux de Paris

Effects of Different Insulin Regimens on Artery Compliance, Endothelium Function and Autonomic Cardiac Function in Patients With Poorly Controlled Type 2 Diabetes: a Pilot Study

Vago-sympathetic activity, arterial stiffness and endothelial function are integrators of cardiovascular risk. The aim of this pilot study is, in type 2 diabetic patients now requiring insulin, to compare the effects of improving glycemic control on these parameters with 3 different insulin regimens which will act especially at fasting or in post-prandial periods or both. Non invasive explorations will be performed before randomization and after 4 to 5 weeks of insulin therapy, at fasting and each hour after a standardized breakfast.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Vago-sympathetic activity, arterial stiffness and endothelial function are integrators of cardiovascular risk. The effect of controlling fasting or post-prandial blood glucose or both on these parameters has not been studied in type 2 diabetic patients.

The aim of this pilot study is to compare the effects of improving fasting or post-prandial blood glucose glycemic control or both with 3 different insulin regimens for 4 to 5 weeks, on vago-sympathetic activity, arterial stiffness and endothelial function.

Patients will be recruited in the department of Endocrinology-Diabetology-Nutrition of Jean VERDIER hospital, AP-HP, and the department of Endocrinology and Metabolism of AVICENNE hospital, BOBIGNY, AP-HP, France. After an half day of cardiovascular explorations, 42 patients will be randomized in 3 groups determining their treatment for the following 4-5 weeks : insulin therapy with detemir at dinner or bed time, or with aspart at each meal, or with both of them.

Investigations will be performed in the morning 1) at the time of randomisation and 2) 4-5 weeks after the beginning of insulin therapy. We will evaluate at fasting and each hour after a standardized breakfast biological and metabolic parameters, arterial stiffness, endothelial function and nervous autonomic system with non-invasive devices: Sphygmocor®, Finapres®, laser-doppler et Endopat2000®. Body composition will be evaluated with impedance maestri and BodPod®.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
42

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Bondy, France, 93140
        • Jean Verdier hospital, Department of Endocrinology-Diabetology-Nutrition

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

30 years to 72 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Consent patient
  • Adults from 30 to 72 years old
  • type 2 diabetic patients for at least 1 year
  • able to self measure capillary blood glucose
  • body mass index 20-37 kg/m²,
  • HbA1c 7.1-12% under Metformin and SULFUNYREAS therapy for at least 2 months
  • anti-hypertensive treatment or dyslipidemic treatment unchanged for 3 months

Exclusion criteria:

  • pregnancy
  • other antidiabetic medication in the previous 2 months,
  • anti-hypertensive or lipid-lowering therapies having been changed in the previous 2 months,
  • insulin allergy,
  • uncontrolled preproliferative or proliferative diabetic retinopathy
  • uncontrolled hypertension
  • renal failure(creatinin clearance <40 ml/min)
  • hepatocellular deficiency (prothrombin time <70%)
  • anemia
  • peripheral occlusive arterial disease
  • cardiac arrhythmia

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: detemir
Insulin detemir at dinner or bedtime
Drug: Insulin
For diabetes treatment: metformin continued with insulin (according to arms)
Other Names:
  • LEVEMIR
  • NOVORAPID
Active Comparator: aspart
Insulin aspart before each meal
Drug: Insulin
For diabetes treatment: metformin continued with insulin (according to arms)
Other Names:
  • LEVEMIR
  • NOVORAPID
Active Comparator: detemir and aspart
Drug: Insulin
For diabetes treatment: metformin continued with insulin (according to arms)
Other Names:
  • LEVEMIR
  • NOVORAPID

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Vago-sympathetic activity, arterial stiffness, endothelial function
Time Frame: 4-5 Weeks
4-5 Weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Assistance Publique - Hôpitaux de Paris

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Paul Valensi, Pr, CHU Jean VERDIER
  • Study Chair: Emmanuel Cosson, MD, PhD, CHU-Jean Verdier

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2011

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 30, 2009

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 30, 2009

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 1, 2009

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 21, 2013

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 20, 2013

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • P090303

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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