Exposome, Pollutants, Biology in the Older Subject: EXPOSAGE (EXPOSAGE)

June 24, 2026 updated by: Centre Hospitalier Universitaire de Nice
Numerous factors, both individual and environmental, can influence aging, an individual's health, and their functional status. However, the understanding of the combined impact of lifestyle-related exposures (e.g., physical activity, diet, sleep) (personal external exposome), exposures to pollutants (environmental external exposome), and their biological responses (internal exposome)-in other words, the impact of the "exposome" on healthy aging-remains limited, particularly in characterizing the molecular mechanisms associated with these interactions. Exposome approaches identifying key exposures and molecular mechanisms could lead to a better understanding of how the environment, interacting with health behaviors, can affect functional status. Thus, the objective of this study is i) to evaluate the links between the external exposome, the internal exposome and the health of older and aging individuals, and ii) to identify biological markers associated with a vulnerable health status in older and aging individuals.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

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.

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 (Estimated)

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.
400

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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • France
      • Nice, France
        • CHU de Nice - Hopital de Cimiez
        • Principal Investigator:
          • Olivier GUERIN, Pr
        • Contact:

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Aged 55 or over
  • Affiliated with or beneficiaries of a social security scheme
  • Signed the informed consent form •-Persons residing in one of the following municipalities : Antibes, Le Bar-sur-Loup, Berre-les-Alpes, Beuil, Blausasc, Breil-sur-Roya, Cabris, Cannes, Carros, Clans, Contes, Drap, L'Escarène, Escragnolles, Fontan, La Gaude, Gilette, Grasse, Lantosque, Levens, Nice, Peillon, Peymeinade, Saint-André-de-la-Roche, Saint-Etienne-de-Tinée, Sospel, Tourrettes-sur-Loup, Vence, Tende

Exclusion Criteria:

  • patients currently undergoing intensive drug treatment, including chemotherapy

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: Other
  • 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.
Other: Exposome assessment
Other: Exposome assessment
Visit 1: blood sample, questionnaires on the personal exposome (lifestyle habits (e.g., physical activity, diet, stress) and social characteristics and health status) | ii) Outpatient assessment: wearing a silicone bracelet for 7 days to measure external environmental exposure to pollutants and quantify physical activity | iii) Visit 2: 1-year follow-up of health status

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
Measure Description
Time Frame
Frailty (health measure)
Time Frame: at baseline and 12 months later
Frailty is assessed using the Groningen Frailty Indicator. The scale comprises 15 items. The total score ranges from 0 to 25, with a higher score being worse.
at baseline and 12 months later

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
Measure Description
Time Frame
Functional and health status
Time Frame: at baseline and 1 year
Disease presence : : Presence (yes/no) of chronic disease
at baseline and 1 year
Physical functional capacities (health measure)
Time Frame: at baseline and at 12 months
Physical functional capacities are assessed using the Short Physical Performance Battery which assess balance, walking capacities and strength via a sit to stand test
at baseline and at 12 months
Quality of life (health measure)
Time Frame: at baseline and 12 months
Quality of life is assessed using the SF-12 questionnaire. The scale comprises 12 items.
at baseline and 12 months
Autonomy (health measure)
Time Frame: at baseline and 12 months
Autonomy is assessed using the WHOQOL-OLD-AUT questionnaire. The scale comprises 4 items. The total score ranges from 4 to 20, with a higher score being better.
at baseline and 12 months
Comorbidity (health measure)
Time Frame: at baseline and 12 months
Comorbidity is assessed using the Charlson Index which counts the number of comorbidities. Higher score means greater number of comorbidities and therefore a poorer health.
at baseline and 12 months
Pollutant metabolites (internal exposome/biological measure)
Time Frame: at baseline.
Presence in the blood metabolome of molecules directly associated with pollutants (initial or biotransformed compounds). This outcome will be obtained through a metabolomic analysis by very high-resolution mass spectrometry (consisting of the analysis of all small organic molecules (or metabolites)) performed on blood samples taken by a blood sampling.
at baseline.
DNA and telomere damage (internal exposome/biological measure)
Time Frame: at baseline.
DNA damage will be obtained through epigenetic analysis by studying miRNAs.
at baseline.
exposure to air pollutants (external environmental exposome measure)
Time Frame: at baseline
characteristics in terms of air pollution of the living space (quantity of fine particulate matter (PM), ozone (O3), nitrogen dioxide (NO2), or sulfur dioxide (SO2))
at baseline
exposure to pesticides, hydrocarbons, plastics, flame retardant pollutants (external environmental exposome measure)
Time Frame: at baseline
the exposure will be obtained through a silicone bracelet worn for 7 days by the participant, which will allow the measure of all exposures in the person's daily life.
at baseline
Smoking habits (external personal exposome measure)
Time Frame: at baseline.
smoking/non-smoking status identified via questionnaire.
at baseline.
Alcohol habits (external personal exposome measure)
Time Frame: at baseline
consumption volume identified via questionnaire.
at baseline
Self-reported physical activity habits (external personal exposome measure)
Time Frame: at baseline
volume of physical activity practice over a week identified via questionnaire.
at baseline
Objective-measured physical activity habits (external personal exposome measure)
Time Frame: at baseline
volume of physical activity practice over a week identified via actigraphy.
at baseline
Socioeconomic characteristic (external personal exposome measure)
Time Frame: at baseline
level of study identified via questionnaire.
at baseline
Socioeconomic characteristic (external personal exposome measure)
Time Frame: at baseline
socio-professional category identified via questionnaire.
at baseline
Psychological health (external personal exposome measure)
Time Frame: at baseline
anxiety assessed using the Hospital Anxiety and Depression Scale (HAD). The scale comprises 14 items. The total score ranges from 0 to 21, with a higher score being worse.
at baseline

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.
Centre Hospitalier Universitaire de Nice

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 (Estimated)

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.
September 1, 2030

Primary Completion (Estimated)

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.
September 1, 2031

Study Completion (Estimated)

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.
September 1, 2031

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).
June 11, 2026

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.
June 24, 2026

First Posted (Actual)

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.
July 1, 2026

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.
July 1, 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.
June 24, 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.
June 1, 2026

More Information

Terms related to this study

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.
  • 25-PP-25

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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