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Craving as a compass: could symptom networks map the path of addiction?

NCT ID NCT07734363

Knowledge-focused Sponsor: University of Bordeaux Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time

Summary

This study follows 700 people with substance use disorders over two years to see how addiction symptoms, especially craving, are connected and whether those connections change as addiction severity shifts. Participants complete annual diagnostic assessments and two-week periods of daily surveys about their substance use, mood, and cravings. The goal is to identify markers that could signal when someone is moving toward a more severe stage of addiction.

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 help identify early warning signs of worsening addiction, allowing for earlier and more targeted interventions.
What could go wrong
This is an observational study, not a treatment trial. It may find patterns that are not strong enough to reliably predict individual changes in addiction severity.

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.

Participants

About 700 people

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

Started

May 2026

Expected to finish

Jun 2031

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.

Who is studied

Patients who have initiated treatment for addiction in a Centre de Soin et d'Accompagnement et de Prévention en Addictologie in France; People with addiction recruited from the general population via recruitment campaigns (posters, partner institutions websites, newspaper, social media); Users of Kanopée, a smartphone application developed by SANPSY Lab, who reported problematic tobacco, alcohol or cannabis use.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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 * Be over 18 years of age * Identify a primary substance as a main problematic substance use. * Be a regular user (at least twice a week in the last 30 days) of a primary substance (defined as their main problematic substance use). * Present a current diagnosis of SUD for this primary substance according to DSM-5 criteria. Exclusion Criteria * Medical, psychiatric or addiction condition that warrants immediate inpatient treatment intervention. * Somatic, cognitive or other disorders preventing the use of the smartphone device (deafness, impaired vision, illiteracy….). * Not being familiar with the use of smartphone * Having a smartphone not compatible with the application and being unable to visit the laboratory to receive a loaner phone for the study. * Difficulty in understanding and/or writing and/or reading French. * Individuals participating in another study that includes an ongoing exclusion period. * Be deprived of liberty due to an ongoing legal procedure. * Be under legal protection. * Be under guardianship or conservatorship.

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Conditions

The condition(s) this trial relates to.

Behavior, Addictive substance-related disorder

As listed by the trial registrant

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

Addiction

How to take part

Only the study team decides who joins. These are the ways to reach them.

  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

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Université de Bordeaux CNRS UMR 6033 SANPSY

    RECRUITING

    Bordeaux, 33000, France

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