A Study of Immunological Biomarkers as Predictors of Cardiovascular Events (BIOKID)

September 5, 2016 updated by: Centre Hospitalier Universitaire, Amiens
Cardiovascular disease linked to atherosclerosis (e.g. infarcts, cerebro-vascular accidents) are one of the main causes of mortality in the general population. The recruitment of macrophages from the walls of the arterial lumen followed by unregulated capture of oxidated LDL (LDLox) leads to the accumulation of cholesterol esters and the formation of foamy cells characteristic of fatty streaks, the first phase of atherogenesis. These fatty streaks are rarely followed by clinical events, but can progress to complicated atheromatoses (calcification, rupture) resulting in the occurrence of various clinical events such as myocardial infarction and cerebro-vascular accidents (CVA). Once oxidated, LDL becomes immunogenic and induces anti-LDLox antibody production that could be markers of progression of atherosclerosis. During LDL oxidation, a multitude of specific oxidative epitopes (SOE) such as oxidated phospholipids (PLox) and malondialdehyde-lysine epitopes (MDA) are generated. In order to measure the level of markers in the blood, researchers developed a series of immunologic levels in vitro, using specific antibodies directed against well-defined epitopes. Recently, it was shown that Lp(a ) would be the preferred transporter of these PLox. In fact, several clinical studies show a strong correlation between PLox/apoB concentrations and Lp(a). This marker (PLox/apoB) predicts future morbidity and mortality due to cardiovascular diseases, including CVA, up to 15 years in advance, independent of all other known risk factors. CD36 is a scavenger receptor that recognizes LDLox, but more specifically PLox present in these lipoproteins .One soluble form of inflammatory CD36 (sCD36) was recently identified. In this study, only healthy volunteers were recruited in order to be able to establish normal serum ranges of different immunologic biomarkers.

Study Overview

Status

Completed

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

84

Phase

  • 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

      • Amiens, France, 80054
        • CHU Amiens

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

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy adults
  • Persons providing signed informed consent
  • Persons with healthcare coverage

Exclusion Criteria:

  • Renal disease
  • Cardiovascular disease
  • Auto immune disease
  • Pregnancy in progress
  • Infection
  • Dementia
  • Persons under legal protection
  • Malnutrition

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: BASIC_SCIENCE
  • Allocation: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: blood
blood tests

Blood tests done by the nurse in the CRC (clinical research center). The quantity of blood taken wil be (3 5-mL tubes):

2 plain tubes and 1EDTA tube Arterial blood pressure will be measured at the CRC. Then, an X-ray of the profile of the abdomen will be taken without preparation to evaluate aortic calcification (in the radiology department of the Amiens hospital)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Blood level of immunologic biomarker PLox/apoB
Time Frame: Day 0
Day 0

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Michel ANDREJAK, MD, PhD, CHU Amiens

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

June 1, 2014

Primary Completion (Actual)

June 1, 2016

Study Completion (Actual)

June 1, 2016

Study Registration Dates

First Submitted

September 5, 2016

First Submitted That Met QC Criteria

September 5, 2016

First Posted (Estimate)

September 9, 2016

Study Record Updates

Last Update Posted (Estimate)

September 9, 2016

Last Update Submitted That Met QC Criteria

September 5, 2016

Last Verified

September 1, 2016

More Information

Terms related to this study

Other Study ID Numbers

  • PI2013_843_0019

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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