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Can a phone app train young brains to resist alcohol and cocaine?

NCT ID NCT07071779

Disease control Sponsor: University of Bern 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests a smartphone app designed to strengthen self-control in teens and young adults (ages 14-35) being treated for alcohol or cocaine use disorder. Participants will complete 12 short training sessions over about a month, plus booster sessions. The goal is to see if the app is practical and acceptable, and whether it helps reduce substance use.

What this could mean

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

Active substance
substance-specific inhibition training via smartphone app
What this could lead to
If successful, this app could provide an easy-to-access, low-cost tool to help young people reduce substance use when added to standard treatment.
What could go wrong
This is a small pilot study focused on feasibility, not effectiveness. The training may not change behavior, and results may not apply to all users.

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 210 people

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

Started

Jul 2025

Expected to finish

Aug 2026

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

14 to 35 years

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: * Age 14 - 35 years * Alcohol use disorder identification test (AUDIT) ≥ 7 or Drug Use Identification Test (DUDIT) ≥ 8 * Currently undergoing outpatient treatment or online counselling in one of 7 specialized treatment settings * Sufficient German language skills * Informed Consent as documented by signature * Owner of a smartphone with internet access Exclusion Criteria: * Other severe substance use (except nicotine and cannabis) determined by the cut-off value ≥ 25 in the drug use disorder identification test (DUDIT) * Current medical conditions excluding participation * Inability to read and understand the participant's information * Enrolment of the investigator, his/her family members, employees, and other dependent persons Additional exclusion criteria for Electroencephalography (EEG)-substudy: * Current medication affecting EEG (e.g., benzodiazepines) * Other severe substance use determined by the cut-off value ≥ 25 in the DUDIT (except nicotine) * History of epilepsy * Cochlea implant

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Conditions

The condition(s) this trial relates to.

alcohol abuse cocaine dependence substance-related disorder

As listed by the trial registrant

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

Alcohol use disorder (AUD) Cocaine use disorder (CUD) Substance use disorder (SUD)

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

  • University of Bern

    RECRUITING

    Bern, Switzerland

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