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New tool aims to improve how we track street opioid use

NCT ID NCT06995885

Knowledge-focused Sponsor: National Institute on Drug Abuse (NIDA) 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 18, 2026 · Updated 58 times

Summary

This study tests a new interview tool called the Opioid Timeline Follow-Back (OpiTLFB) to better track nonmedical opioid use, including fentanyl. Thirty adults who use opioids at least once a week will fill out a calendar and answer questions about their drug use over the past 30 days. The goal is to create a more accurate way for researchers to measure opioid use patterns.

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 lead to a more accurate way for researchers to track opioid use, helping to better understand and address the opioid crisis.
What could go wrong
This is a very small, early-stage study with only 30 participants. The new tool may not work well for everyone or may need major changes before it can be widely used.

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 30 people

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

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

May 2027

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

We may enroll participants in this protocol from the pool that screens for other protocols at the NIDA IRP. We may also advertise for this protocol directly. If we decide to launch an ad campaign for this specific protocol, we will primarily recruit in the Baltimore metro area. We may also recontact previous participants from NIDA IRP studies who have expressed interest in participating in future NIDA studies and agreed to such recontact. Additionally, study team members attend events hosted by the Office of the Clinical Director to engage with local community partners. This includes clinics, treatment facilities, medical facilities, advocacy groups, and local businesses. We conduct outreach at community events/locations such as health expos, festivals, and other local venues. During these events, we display and offer approved recruitment materials.

Ages

18 to 99 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: To be eligible to participate in this study, an individual must meet the following criteria: 1. Age 18 years or older 2. Self-report of current use of opioids obtained in a nonmedical context (i.e., not from a pharmacy or in a healthcare setting), at least once a week. 3. Able to understand and communicate in written and spoken English. Justification: Initial development of the OpiTLFB requires strong, unmediated communication between the study team and the participants. Further development and modification for non-English-speaking interviewees is best undertaken as a separate project when the OpiTLFB is ready for use. 4. Ability of subject to understand and the willingness to sign a written informed consent document. EXCLUSION CRITERIA: 1\. Any medical, psychiatric, or social conditions that the investigators believe would make participation in this protocol not in the best interest of the participant.

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Conditions

The condition(s) this trial relates to.

opiate dependence substance-related disorder

As listed by the trial registrant

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

Substance use disorders (SUDS)

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

  • National Institute on Drug Abuse

    Baltimore, Maryland, 21224, United States

More trials for these conditions

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