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Pain-Craving link explored in opioid disorder study

NCT ID NCT04190563

Knowledge-focused Sponsor: Mclean Hospital 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 14, 2026 · Updated 2 times

Summary

This study looked at how pain influences opioid cravings in 89 adults with opioid use disorder and chronic pain. Participants attended a brief education session and then had their pain response and cravings measured. The goal was to better understand the connection between pain and the urge to use opioids.

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

83 people

The number who actually took part.

Started

May 2021

Finished

Jul 2025

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: * age 18 years or older; * diagnosis of opioid use disorder * chronic pain * ability to read and provide informed consent Exclusion Criteria: * major psychiatric or medical condition that would interfere with participation * current opioid withdrawal * currently receiving opioid analgesic medication for pain * recent history of myocardial infarction or other serious cardiovascular condition * current peripheral neuropathy, active vasculitis or severe peripheral vascular disease * systematic inflammatory or autoimmune disorder * admitted to current treatment episode on an involuntary status

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Conditions

The condition(s) this trial relates to.

chronic pain syndrome opiate dependence

As listed by the trial registrant

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

Opioid-use disorder

Contacts and locations

Locations

  • McLean Hospital

    Belmont, Massachusetts, 02478, United States

More trials for these conditions

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