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Scientists seek to uncover why some young adults are more prone to substance use

NCT ID NCT07094061

Knowledge-focused Sponsor: University of Michigan 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how differences in personality, brain activity, and behavior may make some young adults more likely to use substances like cannabis. Researchers will track eye movements and brain scans in 294 people aged 18-22. No treatment or medication is involved—the goal is simply to learn more about these patterns.

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 294 people

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

Started

Oct 2025

Expected to finish

Aug 2028

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 to 22 years

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: * 18-22 years old at baseline * Right-handed * Medically/physically able to give informed consent * English-speaking * Substance use is free to vary, but for participants with a history of substance use, ≥ 1 use of cannabis (including less than a full dose) Exclusion Criteria: * Acute or chronic medical or neurological illness (e.g., diabetes, epilepsy, migraine) * History of psychosis in self or first-degree relative * Current treatment for substance use disorder * Current or past 6-month treatment with centrally acting medications (not including attention deficit hyperactivity disorder (ADHD) medication) * Intelligence quotient (IQ) \< 70 * Lifetime history of head trauma with loss of consciousness \> 5 minutes * Reliance on glasses to be able to read small text at a distance of approximately 30 inches * Colorblindness * MRI contraindication (e.g., pregnancy, metal implants, claustrophobia) per protocol

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Conditions

The condition(s) this trial relates to.

substance abuse substance-related disorder

As listed by the trial registrant

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

Healthy Substance use

How to take part

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

  1. The places running it

    2 sites. 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

  • Rachel Upjohn Building

    RECRUITING

    Ann Arbor, Michigan, 48109, United States

  • University of Michigan

    NOT_YET_RECRUITING

    Ann Arbor, Michigan, 48109, United States

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