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MRI clues may predict who gets pain relief from neck injection

NCT ID NCT07476235

Knowledge-focused Sponsor: Asan Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looked back at the medical records of 90 adults with neck and arm pain caused by a pinched nerve. Researchers wanted to see if MRI scans could predict who would get good pain relief from a procedure called a stellate ganglion block, where numbing medicine is injected near nerves in the neck. They found that certain changes in the neck muscles and the type of nerve compression might help predict whether the injection will work.

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

90 people

The number who actually took part.

Started

Oct 2024

Finished

Sep 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.

Who is studied

Patients aged 19 years or older with unilateral cervical radicular pain who underwent ultrasound-guided stellate ganglion block at the pain clinic of Asan Medical Center, Seoul, Korea, between October 2018 and April 2023. All patients had MRI-confirmed cervical foraminal stenosis consistent with their symptoms and had failed at least 1 month of conservative treatment including medication and physical therapy. Patients were excluded if they had a history of cervical spine surgery, bilateral or multi-segment involvement, neck pain exceeding arm pain, other contributing pain conditions, or insufficient medical records.

Ages

19 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: * Unilateral cervical radicular pain * Evidence of cervical foraminal stenosis on magnetic resonance imaging (MRI) consistent with radicular pain * Age ≥ 19 years * Symptoms unresponsive to at least 1 month of conservative treatment, including medication and physical therapy Exclusion Criteria: * History of cervical spine surgery * Bilateral symptoms or involvement of three or more segments * Neck pain intensity greater than arm-pain intensity * Other conditions, such as facet joint syndrome or myofascial pain syndrome, contributing to the symptoms * Insufficient documentation in the electronic medical records

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Conditions

The condition(s) this trial relates to.

radiculopathy

As listed by the trial registrant

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

Radiculopathy, cervical region

Contacts and locations

Locations

  • Asan Medical Center

    Seoul, 05505, South Korea

More trials for these conditions

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