Cohort Study on the Age-related Macular Degeneration: Incidence and Research for Predisposing Factors (ECLAIR)

May 11, 2026 updated by: University Hospital, Bordeaux
Age-related Macular Degeneration (AMD) is the most cause of blindness in the industrialised countries. There are few epidemiological studies on the incidence of this disease. Studying the incidence of AMD in an elderly French population and identifying the predisposing factors is very important to allow a major advance in the epidemiological knowledge of AMD. This study will contribute to the identification of the clinical, genetic and modifiable parameters associated at the risk of developing AMD. This could result in means prevention as well as in the identification of subjects as high risk of AMD

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

Age-related Macular Degeneration is the most cause of blindness in the industrialised countries. There are few French epidemiological data on this disease. Worldwide, studies have included a small number of very old subjects. Thus, it is important to estimate the AMD incidence in an elderly French population, in order to evaluate more precisely the number of cases in the French population. Besides, some clinical, genetic and modifiable parameters predisposing to the AMD are under study. The aim of the ECLAIR project is to study the 8-year incidence of AMD in an elderly French population and to identify the predisposing factors. It is based on an existing cohort study (ALIENOR) in which some clinical, genetic and modifiable data were collected at baseline, 2 and 4 years. It is the only cohort study performed in France in this field since fifteen years in parallel with another one performed in Dijon according to the same methodology. It is important to extend the study to 8 years in order to have a sufficient statistical power for the identification of predisposing factors. In the ECLAIR study, there is no treatment. The subjects will be followed during 2 years (6 and 8 years after baseline of the Alienor study). The visit 1 (A0) will be the inclusion visit where the subjects will sign the inform consent and will perform ophthalmological examinations. The subjects will come back 2 years later for the visit 2 (A2). In this second visit, the ophthalmological examinations will be the same that is: measure of clinical parameters, measurement of visual acuity exams, retinophotography,spectral domain optical coherence tomography (SD-OCT), intraocular pressure, retinal imaging (OPTOMAP), axial length (IOL master)

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.
516

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
      • Bordeaux, France, 33000
        • Unité Médicale Rétine Neuro-Ophtalmologie - Service d'Ophtalmologie - Hopital Pellegrin

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Subject participating in the study ALIENOR
  • Affiliated to a social security
  • Consent signed by the patient and the investigator

Exclusion Criteria:

- Health incompatible with one hour and a half ophthalmic examination

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: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group 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.
Experimental: Subject in the study ALIENOR
Other: clinical parameters
Other: visual acuity exams
Other: retinophotography
Other: SD-OCT
Other: Intra ocular Pressure (IOP)
Other: retinal imaging (OPTOMAP)
Other: axial length (IOL master)

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
8-year incidence of late AMD (neovascular and/or atrophic)
Time Frame: at day 0 (inclusion in ECLAIR study and 6 years after inclusion in ALIENOR cohort) and year 2 after inclusion (end of ECLAIR study and 8 years after inclusion in ALIENOR cohort)
at day 0 (inclusion in ECLAIR study and 6 years after inclusion in ALIENOR cohort) and year 2 after inclusion (end of ECLAIR study and 8 years after inclusion in ALIENOR cohort)

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
best-corrected visual acuity (ETDRS methodology) measured in visit 1 and 2 years later with ETDRS methodology
Time Frame: at day 0 (inclusion) and year 2 after inclusion (end of study)
at day 0 (inclusion) and year 2 after inclusion (end of study)

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 Hospital, Bordeaux

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: Korobelnik Jean-François, University Hospital Bordeaux, France

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 (Actual)

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.
July 9, 2015

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.
February 23, 2017

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.
February 23, 2017

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).
July 8, 2013

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.
August 5, 2013

First Posted (Estimated)

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.
August 7, 2013

Study Record Updates

Last Update Posted (Actual)

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.
May 14, 2026

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.
May 11, 2026

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.
April 1, 2020

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.
  • CHUBX 2012/31
  • 2013-A00366-39 (Other Identifier: ANSM)

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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