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New digital app aims to curb cocaine and meth use

NCT ID NCT07221396

Disease control Sponsor: Yale University 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
Registered, but not yet taking participants.
By invitation only This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 pilot study tests a web-based program called LDART for adults with stimulant use disorder (cocaine or methamphetamine). The program includes daily goal setting, motivational messages from people in recovery, and links to support groups. Researchers want to see if it's feasible and acceptable, and whether it helps reduce stimulant use. The study enrolls 80 adults in Connecticut who use stimulants frequently and want to cut down.

What this could mean

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

Active substance
LDART (web-based digital intervention with goal setting, motivational messages, and recovery group information)
What this could lead to
If it works, this could provide a low-cost, accessible digital tool to help people reduce or stop stimulant use.
What could go wrong
This is a small pilot study with only 80 participants in one state, so results may not apply broadly. The intervention is still being tested for feasibility and may not lead to lasting behavior change.

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 80 people

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

Started

Apr 2026

Expected to finish

Apr 2027

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

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: * 18 years of age or older * Currently reside in Connecticut, USA * Have a smartphone that can send and receive text messages and have internet access that can be access over the course of a month * Substance (Stimulant) Use Symptom Checklist ≥2, indicating past-year stimulant use disorder * Had high frequency of cocaine use (≥5 days) in the past 28 days * Have some self-reported desire to cut down or quit stimulants Exclusion criteria: * Unable to provide informed consent, as assessed by the consent quiz * Unable to speak, read, or write in English * Vulnerable population status * Unlikely to be able to complete study procedures in the next 2 months

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Conditions

The condition(s) this trial relates to.

cocaine dependence methamphetamine dependence

As listed by the trial registrant

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

Cocaine use disorder Methamphetamine use disorder Stimulant use disorder

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Yale University

    New Haven, Connecticut, 06520, United States

More trials for these conditions

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