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Could a low-dose buprenorphine film be a safer painkiller than oxycodone?

NCT ID NCT05988710

Knowledge-focused Sponsor: Vanderbilt University Medical Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether low-dose buccal buprenorphine (a film placed in the cheek) can provide pain relief similar to a standard dose of oxycodone but with less potential for abuse. 120 healthy adults will receive different doses of buprenorphine, oxycodone, or placebo in separate sessions. Researchers will measure pain tolerance and drug liking to compare the two drugs.

What this could mean

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

Active substance
buprenorphine (buccal) and oxycodone (oral)
What this could lead to
If successful, this could show that low-dose buccal buprenorphine provides pain relief similar to oxycodone but with lower abuse potential, pointing toward a safer painkiller option.
What could go wrong
This is a small, early-phase study in healthy volunteers, not patients with pain. Results may not translate to real-world use, and abuse potential may still be significant.

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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 120 people

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

Started

Oct 2023

Expected to finish

Feb 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 65 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: * Intact cognitive status and ability to provide informed consent * Ability to read and write in English sufficiently to understand and complete study questionnaires * Age 18-65 * Opioid-naive status (defined as no use of full mu-opioid receptor (MOR) agonist, partial MOR agonist, or mixed agonist/antagonist medications for the prior 3 months by patient report Exclusion Criteria: * Liver/kidney disease * Chronic pain * Current/prior substance use disorder * Pregnancy (to avoid fetal drug exposure, with pregnancy tests conducted to confirm eligibility) * Seizure disorder * Certain psychiatric conditions (severe depression, bipolar disorder, psychotic disorders) * Recent use of medications that may interfere with study drug metabolism * Recent benzodiazepine or opioid use (confirmed via rapid urine screening prior to each lab session) * The presence of any medical conditions felt by the study physician to render participant unsafe * Prior allergic reaction or intolerance to oxycodone, buprenorphine, or their analogs (explicitly including moderate-to-severe nausea or vomiting with prior opioids) * Recent use of marijuana, delta-8 THC, CBD, and similar products * Recent use of kratom * Severe asthma * Long QT syndrome * Parkinson disease * Weight \<60 kg

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Conditions

The condition(s) this trial relates to.

agnosia opiate dependence opioid abuse Pain pain agnosia

As listed by the trial registrant

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

Abuse opioids Analgesia Pain

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

  • Vanderbilt University Medical Center

    RECRUITING

    Nashville, Tennessee, 37069, United States

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