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Saliva swab could spot hidden mouth germs in vulnerable groups

NCT ID NCT07521644

Knowledge-focused Sponsor: Assistance Publique Hopitaux De Marseille Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aims to better understand changes in the mouth's tiny organisms (dysbiosis) in people over 60 or with weakened immune systems. Researchers will collect dental plaque and saliva samples from 250 participants to see how common these changes are and whether a simple saliva swab can reliably detect them. The goal is to improve detection of oral health problems without needing a dentist.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could lead to simpler, non-invasive saliva tests for detecting oral health problems in vulnerable populations.
What could go wrong
This is an early observational study, not a treatment trial. It may not lead to any clinical changes, and results may not apply to broader populations.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 250 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Dec 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Case selection criteria: Cases are defined as subjects with oral health vulnerability * Men or women aged 60 years or older * and/or immunocompromised individuals without periodontal disease (gingivitis, periodontitis, and peri-implantitis) clinically diagnosed by the dentist during the consultation. * Patients who have received information about the study and have not expressed objection * Patients who are beneficiaries or eligible for a social security program Control group selection criteria Controls are defined as subjects without oral health vulnerability • Men and women under 60 years of age without periodontal disease (gingivitis, periodontitis, and peri-implantitis) clinically diagnosed by the dentist during the consultation. The clinical examination allows for the diagnosis of the absence or presence of periodontal disease, with particular attention to: bleeding on probing, the depth of periodontal pocket(s), tooth mobility, bone destruction in furcation areas, and the assessment of radiographic bone level taking age into account. Exclusion Criteria: * Patients who are currently excluded from another research protocol at the time the informed consent form is collected. * Subjects covered by Articles L1121-5 through L1121-8 of the Public Health Code (minors, adults under guardianship or conservatorship, patients deprived of their liberty, pregnant or breastfeeding women), * Men and women with periodontal disease (gingivitis, periodontitis, and peri-implantitis) * Men and women with any systemic disease * Men and women currently undergoing drug treatment

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Oral health

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • Assistance Publique Hopitaux de Marseille

    Marseille, France

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