Clinical Significance of Antiphospholipid Antibodies in Healthy Subjects (SAPL)

June 14, 2016 updated by: Centre Hospitalier Universitaire, Amiens

Clinical Significance of Antiphospholipid Antibodies in Healthy Subjects: Study of Their Association With Cardiovascular Risk Factors, Markers of Arterial Inflammation and Markers of Oxidative Stress

Antiphospholipid (APL) antibodies are a heterogeneous family of auto-antibodies, predominantly represented by anticardiolipin (ACL) antibodies and lupus anticoagulant (LA). Antiphospholipid syndrome (APS) is defined as the presence of APL associated with venous and/or arterial thrombosis or repeated foetal loss. APS may be either primary or secondary to an autoimmune disease, mainly systemic lupus erythematosus (SLE). However, other than in the context of APS, APL can also be observed in various clinical situations and in healthy subjects. Published studies have reported a variable prevalence of APL in healthy subjects, essentially ACL and/or LA, and their clinical significance currently remains unclear.

Several studies have highlighted the link between APL and atherosclerosis. It therefore appears interesting to more specifically study the association between the presence of APL and the presence of cardiovascular risk factors in a population of healthy subjects. Atherosclerosis is currently considered to be a chronic inflammatory disease arising from a complex interaction between atherogenic plasma factors and cells of the arterial wall. Several inflammatory markers are now known to be associated with cardiovascular risk. Lipid peroxidation also plays a major role during the atherogenesis process. It will therefore also be important to correlate APL with markers of vascular inflammation and markers of oxidative stress.

A prospective case-control study will therefore be conducted on 1,500 healthy blood donors. Subjects screened APL-positive will be compared to APL-negative subjects in terms of cardiovascular risk factors (cardiovascular risk per se, the presence of cardiovascular disease will not be studied). In the context of a blood donation, all subjects wishing to participate in this study will attend a medical interview and a clinical examination during which various data will be collected, mainly the presence of cardiovascular risk factors. A blood sample will also be taken to assay the various laboratory markers studied.

This study should provide a better understanding of the role of APL in healthy subjects and more clearly specify their possible link with atherosclerosis in this population.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

1282

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

  • France
      • 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

16 years to 64 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • healthy blood donors

Exclusion Criteria:

  • contraindication to blood donation

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: healthy
blood sample
Biological: blood sample

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
antiphospholipid (APL) antibodies
Time Frame: Day 0
Day 0

Collaborators and Investigators

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

Sponsor

Centre Hospitalier Universitaire, Amiens

Investigators

  • Principal Investigator: Valéry SALLE, 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

July 1, 2007

Primary Completion (Actual)

March 1, 2016

Study Completion (Actual)

March 1, 2016

Study Registration Dates

First Submitted

June 9, 2016

First Submitted That Met QC Criteria

June 14, 2016

First Posted (Estimate)

June 17, 2016

Study Record Updates

Last Update Posted (Estimate)

June 17, 2016

Last Update Submitted That Met QC Criteria

June 14, 2016

Last Verified

June 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PHRCIR05-DR-SALLE

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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