Tight Glycemic Control During Angioplasty Revascularization Reduces Coronary Stent Restenosis

December 20, 2011 updated by: Raffaele Marfella, University of Campania "Luigi Vanvitelli"

Tight Glycemic Control During Angioplasty Revascularization for Acute Coronary Syndrome Reduces Circulating Inflammatory Cytokines and Coronary Stent Restenosis

A multicentric study will evaluate whether peri-procedural tight glycemic control during angioplasty revascularization for acute coronary syndrome (ACS) reduces circulating inflammatory cytokines and thrombus formation in hyperglycaemic patients. Moreover, the investigators will assess whether the tight glycemic control during the first month from coronary event reduces the incidence of coronary stent restenosis at 6-months from PCI.

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

The study design will be structured on the basis of protocol Yale. Upon emergency wards admission, all patients will be assigned to undergo prompt coronary revascularization. After PCI procedures, hyperglycemic patients will be randomly assigned to intensive glucose control (IGC group) and those treated with conventional glucose control (CGC group). In the patients with In the CGC group, continuous insulin infusion of 50 IU Actrapid HM (Novo Nordisk) in 50 ml NaCl (0.9% using a Perfusor-FM pump) will be started only when blood glucose levels exceeded 200 mg/dl and adjusted to keep blood glucose between 180 and 200 mg/dl. When blood glucose fell <180 mg/dl, insulin infusion will be tapered and eventually stopped. In the IGC group, insulin infusion will be started when blood glucose levels exceeded 140 mg/dl and adjusted to maintain glycemia at 80-140 mg/dl. During insulin infusion, oral feeding will be stopped and parenteral nutrition (13±5 Kcal/kg-1/day-1) will be started. After the start of insulin infusion protocol a glycemic control will be provided every hour in order to obtain three consecutive values that were within the goal range. The infusion will be lasted until stable glycemic goal (ICG group: 80-140 mg/dl; CGC group: 180-200 mg/dl) at least for 24 h. After glycemic goal will be maintained for 24 h, a parenteral nutrition was stopped and feeding will be started according to European guidelines. Subcutaneous insulin will be initiated at the cessation of the infusion. After discharge from the hospital, insulin will be given as short-acting insulin before meals and long-acting insulin in the evening for 30 days from PCI in both group. In IGC group, the treatment goal will be a fasting blood glucose level of 90-140 mg/dl and a non-fasting level of <180 mg/dl. In CGC group, the treatment goal will be fasting blood glucose and postprandial levels of <200 mg/dl. With regard to the full medical therapy, the protocol stated that the use of concomitant treatment should be as uniform as possible and according to evidence-based international guidelines for ACS. After 30 days from PCI, all patients with established diabetes and newly diagnosed diabetes will be managed and followed for 6 month after PCI, as outpatients, to maintain HbA1c <7% and blood glucose level of 90-140 mg/dl and a non-fasting level of <180 mg/dl.

Coronary Angiography Coronary angiograms at baseline, immediately after PCI, and at 6 months will be performed in at least 2 orthogonal views after intracoronary nitroglycerin. Minimum lumen diameter (MLD) and mean reference diameter (RD), obtained by averaging 5-mm segments proximal and distal to the target lesion location, will be used to calculate diameter stenosis as follows: (1-MLD/RD)X100. Late loss will the change in MLD from final PCI to follow-up. In-stent analysis will be confined to the stent itself, and in-segment analysis will be included the stent plus 5-mm segments proximal and distal to the stent. Binary restenosis will be defined as a <50% diameter stenosis. Qualitative analysis will be done with standard published methods.

IVUS Imaging and Analysis IVUS at baseline, immediately after PCI, and at 6 months will be performed with iLab, Galaxy, and ClearView or In Vision Gold with 20-MHz EagleEye catheters. IVUS imaging will be performed with motorized pullback at 0.5 mm/s to include the stent and >5 mm segments proximal and distal to the stent. IVUS studies will be archived onto super-VHS tape, CD-ROM, or DVD and will be sent to an independent, treatment-allocation- blinded, IVUS core laboratory for quantitative and qualitative analyses with validated planimetry software. Quantitative analysis will include measurement every 1 mm of the external elastic membrane (EEM), stent, and lumen cross-sectional areas (CSAs). Plaque plus media CSA will be calculated as EEM minus lumen. Neointimal hyperplasia (NIH) will be calculated as stent minus lumen. Once a complete set of CSA measurements will be obtained, intrastent and stent-edge volumes (EEM, plaque plus media, stent,lumen, and NIH) will be calculated with Simpson's rule and normalized for stent and reference segment length. Percent net volume obstruction will be calculated as NIH divided by stent volume.

Qualitative analysis will include stent malapposition (blood speckle behind stent struts), categorized as persistent (visible both at baseline and follow-up), resolved (visible only at baseline), and late acquired (only visible at follow-up); intrastent plaque and/or thrombus protrusion (IVUS cannot reliably differentiate between plaque and thrombus protruding through stent struts); stent fracture (absence of struts over more than one third of the stent circumference); aneurysm(lumen >50% larger than the proximal reference); and edge dissection.

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.
200

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

  • Italy
      • Naples, Italy, 80138
        • Dept Geriatric and Metabolic diseases SUN

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

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • chest discomfort lasting at least 15 min within the last 24 h,
  • new >l mm ST-wave or dynamic T-wave changes in at least two contiguous ECG leads,
  • troponin I levels above the 99th percentile 6-12 h after the onset of chest pain
  • patients referred to the cardiac catheterization laboratory within 24 h of symptoms.

Exclusion Criteria:

  • left ventricular ejection fraction less than 25%,
  • hemorrhagic diatheses,
  • contraindications or allergy to aspirin, thienopyridines, and history of anaphylaxis in response to iodinated contrast medium,
  • serum creatinine level of more than 2.0 mg/dl (177 μmol/l),
  • leukocyte count of less than 3500/mm3, platelet count of less than 100,000/mm3
  • coexisting conditions that limited life expectancy to less than 24 months or that could affect a patient's compliance with the protocol.

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.
No Intervention: control
No hyperglycemia patient group
Active Comparator: Insulin 1
Conventional insulin treatment
Drug: Insulin
Insulin infusion will be started when blood glucose levels exceeded 140 mg/dl and adjusted to maintain glycemia at 80-140 mg/dl. During insulin infusion, oral feeding will be stopped and parenteral nutrition (13±5 Kcal/kg-1/day-1) will be started. After the start of insulin infusion protocol a glycemic control will be provided every hour in order to obtain three consecutive values that were within the goal range. The infusion will be lasted until stable glycemic goal (80-140 mg/dl) at least for 24 h. After glycemic goal will be maintained for 24 h, a parenteral nutrition was stopped and feeding will be started according to European guidelines. Subcutaneous insulin will be initiated at the cessation of the infusion. After discharge from the hospital, insulin will be given as short-acting insulin before meals and long-acting insulin in the evening for 30 days from PCI. The treatment goal will be a fasting blood glucose level of 90-140 mg/dl and a non-fasting level of <180 mg/dl.
Drug: Insulin
Continuous insulin infusion of 50 IU Actrapid HM (Novo Nordisk) in 50 ml NaCl (0.9% using a Perfusor-FM pump) will be started only when blood glucose levels exceeded 200 mg/dl and adjusted to keep blood glucose between 180 and 200 mg/dl. When blood glucose fell <180 mg/dl, insulin infusion will be tapered and eventually stopped.The infusion will be lasted until stable glycemic goal (180-200 mg/dl) at least for 24 h. After glycemic goal will be maintained for 24 h, a parenteral nutrition was stopped and feeding will be started according to European guidelines. Subcutaneous insulin will be initiated at the cessation of the infusion. After discharge from the hospital, insulin will be given as short-acting insulin before meals and long-acting insulin in the evening for 30 days from PCI in both group. The treatment goal will be fasting blood glucose and postprandial levels of <200 mg/dl.
Experimental: Insulin
Intensive insulin treatment
Drug: Insulin
Insulin infusion will be started when blood glucose levels exceeded 140 mg/dl and adjusted to maintain glycemia at 80-140 mg/dl. During insulin infusion, oral feeding will be stopped and parenteral nutrition (13±5 Kcal/kg-1/day-1) will be started. After the start of insulin infusion protocol a glycemic control will be provided every hour in order to obtain three consecutive values that were within the goal range. The infusion will be lasted until stable glycemic goal (80-140 mg/dl) at least for 24 h. After glycemic goal will be maintained for 24 h, a parenteral nutrition was stopped and feeding will be started according to European guidelines. Subcutaneous insulin will be initiated at the cessation of the infusion. After discharge from the hospital, insulin will be given as short-acting insulin before meals and long-acting insulin in the evening for 30 days from PCI. The treatment goal will be a fasting blood glucose level of 90-140 mg/dl and a non-fasting level of <180 mg/dl.
Drug: Insulin
Continuous insulin infusion of 50 IU Actrapid HM (Novo Nordisk) in 50 ml NaCl (0.9% using a Perfusor-FM pump) will be started only when blood glucose levels exceeded 200 mg/dl and adjusted to keep blood glucose between 180 and 200 mg/dl. When blood glucose fell <180 mg/dl, insulin infusion will be tapered and eventually stopped.The infusion will be lasted until stable glycemic goal (180-200 mg/dl) at least for 24 h. After glycemic goal will be maintained for 24 h, a parenteral nutrition was stopped and feeding will be started according to European guidelines. Subcutaneous insulin will be initiated at the cessation of the infusion. After discharge from the hospital, insulin will be given as short-acting insulin before meals and long-acting insulin in the evening for 30 days from PCI in both group. The treatment goal will be fasting blood glucose and postprandial levels of <200 mg/dl.

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
Coronary angiograms
Time Frame: at baseline, immediately after PCI, and at 6 months
at baseline, immediately after PCI, and at 6 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
IVUS Imaging
Time Frame: at baseline, immediately after PCI, and at 6 months
at baseline, immediately after PCI, and at 6 months

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.
University of Campania "Luigi Vanvitelli"

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: Raffaele Marfella, MD, PhD, University of Campania "Luigi Vanvitelli"

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.
December 1, 2009

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.
June 1, 2010

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.
December 1, 2010

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 18, 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 18, 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.
November 19, 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.
December 21, 2011

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.
December 20, 2011

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.
December 1, 2011

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.
  • IT 246813

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.

Clinical Trials on Restenosis

Clinical Trials on Insulin

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings