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Scientists hunt for blood markers that could flag opioid addiction risk before it starts

NCT ID NCT07693270

Knowledge-focused Sponsor: University of California, San Diego 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 09, 2026 · Last updated Jul 17, 2026 · Updated 2 times

Summary

This study aims to find biological markers in the blood that could predict a person's risk of developing opioid use disorder after being prescribed painkillers for a traumatic injury or surgery. Researchers will collect blood samples and health data from 100 adults admitted for trauma or certain surgeries. The goal is to develop a screening test that identifies those most vulnerable to opioid misuse, potentially allowing for safer, personalized pain management.

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 blood test that identifies people at high risk for opioid addiction before they start taking pain medication.
What could go wrong
This is an early-stage observational study, not a treatment trial. The biomarkers identified may not prove accurate enough for widespread use.

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 100 people

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

Started

Jul 2026

Expected to finish

Jun 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.

Who is studied

We will recruit up to 100 participants prospectively from UC Health sites, including Jacobs Medical Center, Hillcrest Hospital, McGrath Outpatient Pavilion, and Koman Outpatient Pavilion. Eligible participants will be identified by reviewing newly admitted patients in the trauma service and/or surgical suite (same day as surgery preoperatively).

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: * Patients 18 years of age or older * Patients admitted for traumatic injury at Hillcrest or Jacobs Medical Center or patients who will undergo the orthopedic (e.g., joint, spine), abdominal, breast, vascular (e.g., amputation), or thoracic surgery. Exclusion Criteria: * Patients with a prior history of opioid use disorder or dependence * Pregnant women * Prisoners * Patients with an inability to independently provide informed consent to participate in the study due to lack of capacity. This lack of capacity can be from either a chronic/continuous condition (i.e. dementia), or can be temporary (i.e. clear signs of intoxication at the time of the visit (not alert or oriented, slurring words \[and confirmed not to be baseline\], unsteady gait \[and confirmed not to be baseline\], or appears impaired based on clinical judgement by PI/Co-I)).

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Conditions

The condition(s) this trial relates to.

opiate dependence Pain, Postoperative

As listed by the trial registrant

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

Opioid consumption Opioid-use disorder Persistent opioid use Persistent postsurgical 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

  • University of California, San Diego

    RECRUITING

    La Jolla, California, 92037, United States

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