Predictive Values of Plasma Soluble RAGE Levels and RAGE Polymorphisms for the Onset of Acute Respiratory Distress Syndrome in Critically Ill Patients (PrediRAGE)

Current clinical prediction scores for acute respiratory distress syndrome (ARDS) have limited positive predictive value. No studies have evaluated predictive kinetics of plasma biomarkers and receptor for advanced glycation end products (RAGE) polymorphisms in a broad population of critically ill patients or as an adjunct to clinical prediction scores.

The main objective of the investigators study is to evaluate the predictive values of plasma soluble RAGE levels for the onset of ARDS in a high risk population of patients admitted to the intensive care unit (ICU).

One of the investigators goals is to improve early identification of patients at risk for ARDS in order to better implement preventive stategies prior to ARDS development.

The primary outcome is the occurrence of ARDS during the first week after admission to the ICU.

Study Overview

Status

Completed

Intervention / Treatment

Detailed Description

BACKGROUND :

ARDS is a major cause of morbidity and mortality in critically ill patients. Only few pharmacological treatments are available, with limited evidence of efficacy.

The development of efficient preventive stategies is limited by the investigators inability to predict which patients are likely to develop ARDS. The Lung Injury predicition Score (LIPS) has been developed to identify patients at high risk for ARDS, but its predictive value remains limited.

The receptor for advanced glycation end product (RAGE) is now identified as a marker of alveolar type I cell injury. RAGE is a member of the immunoglobulin superfamily that acts as a multiligand receptor which is involved in propagating inflammatory responses. Plasma levels of sRAGE are correlated with clinical and radiologic severity in ARDS patients.

The investigators main objective is to assess the predictive values of plasma sRAGE and esRAGE levels, as well as their evolution over the first 24 hours after admission, for the onset of ARDS in high risk patients.

The secondary objectives are to :

  • to evaluate the predictive value of RAGE polymorphisms (_429 T/C, _374 T/A, 2184 A/G, Gly82Ser) for the onset of ARDS
  • to evaluate the predictive value of maximal plasma levels of RAGE soluble forms for the onset of ARDS
  • to test the relationship between RAGE polymorphisms and plasma sRAGE and esRAGE levels
  • to test whether serial sRAGE measurements would improve the discrimination of the LIP Score or not
  • to evaluate the prognostic value of plasma levels of RAGE soluble forms for : duration of mechanical ventilation, length of stay in the ICU and 30-day mortality.

DESIGN NARRATIVE :

The purpose of this prospective observational study is to test the values of RAGE polymorphism and soluble forms plasma levels for ARDS prediction in high risk ICU patients

Study Type

Observational

Enrollment (Actual)

500

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

      • Clermont-Ferrand, France, 63003
        • CHU de Clermont-Ferrand

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

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Population at high risk for ARDS development

Description

Inclusion Criteria:

  • Patients admitted to the ICU
  • Patients presenting with risk factors for ARDS : high risk surgery, sepsis, shock, panceatitis, pneumonia, aspiration, drowning, massive transfusion, pulmonary contusion, serious burn, severe trauma.
  • Informed consent

Exclusion Criteria:

  • Pregnancy
  • Age < 18 years
  • Criteria for ARDS at admission to the ICU
  • Expected survival under 48 hours

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
ARDS (Acute Respiratory Distress Syndrome)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
development of ARDS
Time Frame: during the first week after admission to the ICU
The development of ARDS, based on Berlin definition criteria, during the first week after admission to the ICU
during the first week after admission to the ICU

Secondary Outcome Measures

Outcome Measure
Time Frame
Plasma sRAGE and esRAGE levels
Time Frame: at ICU admission (Day 0)
at ICU admission (Day 0)
Plasma sRAGE and esRAGE levels
Time Frame: (Day 1)
(Day 1)
Evolution of plasma sRAGE levels
Time Frame: between day 0 and day 1
between day 0 and day 1
Maximal plasma levels of sRAGE and esRAGE
Time Frame: during the first 24 hours after ICU admission
during the first 24 hours after ICU admission
Development of ARDS
Time Frame: during at day 14 and day 30 after ICU admission
during at day 14 and day 30 after ICU admission
Total duration of mechanical ventilation
Time Frame: at day 1
at day 1
Length of stay in ICU
Time Frame: at day 1
at day 1

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Matthieu JABAUDON, University Hospital, Clermont-Ferrand

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.

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 (Actual)

February 1, 2014

Primary Completion (Actual)

March 1, 2016

Study Completion (Actual)

December 1, 2016

Study Registration Dates

First Submitted

February 21, 2014

First Submitted That Met QC Criteria

February 24, 2014

First Posted (Estimate)

February 25, 2014

Study Record Updates

Last Update Posted (Actual)

May 12, 2020

Last Update Submitted That Met QC Criteria

May 9, 2020

Last Verified

February 1, 2014

More Information

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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