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10,000 volunteers needed to help scientists understand addiction

NCT ID NCT06552741

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 25, 2026 · Updated 4 times

Summary

This study screens up to 10,000 adults aged 18-99 who have current, past, or no substance or alcohol use disorders. Participants undergo one visit with tests like physical exams, blood work, memory tests, and mental health evaluations. The goal is to find eligible volunteers for future research on why people use drugs, stop, or never start, and to develop treatments.

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 10,000 people

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

Started

Sep 2024

Expected to finish

Jan 2047

An estimate. End dates often move.

Lead sponsor

A government research agency

The lead sponsor is the US National Institutes of Health.

Who can take part

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

Who is studied

10,000 people with and without substance use disorders (SUDs), aged 18-99

Ages

18 to 99 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: This protocol is seeking individuals with current or past SUDs and/or AUD, as well as those who have never had an SUD or AUD. These individuals also may or may not be in treatment for their AUD/SUDs. To be eligible to participate in this study, an individual must meet the following criteria: * Age 18-99 years old. * Proficient ability to read, write, and understand English. * Stated willingness to comply with all screening procedures and availability for the duration of the screening period * Ability of subject to understand and the willingness to sign a written informed consent document. EXCLUSION CRITERIA: Individuals who lack capacity to consent to research participation to this protocol as determined by the Evaluation to Sign Consent (ESC).

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

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

  • National Institute on Drug Abuse

    RECRUITING

    Baltimore, Maryland, 21224, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.