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ER back pain study: could a simple nerve block offer fast relief?

NCT ID NCT06745453

Symptom relief Sponsor: Rush 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 a nerve block called an erector spinae plane block (ESPB) can reduce pain in adults with acute low back pain in the emergency department. 62 participants will receive either the ESPB or a sham injection. Researchers will measure pain scores for up to 2 hours and check pain, disability, and return to work after 7 days.

What this could mean

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

Active substance
Erector Spinae Plane Block (a nerve block injection)
What this could lead to
If it works, this could provide a new, fast-acting pain relief option for acute low back pain in the emergency department.
What could go wrong
This is a small, early-stage trial with only 62 participants. The sham injection may also provide some relief, and results may not apply to everyone with back pain.

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

About 62 people

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

Started

Feb 2025

Expected to finish

Dec 2026

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 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: * Adults (age ≥18 years) presenting to the emergency department with isolated low back pain present less than 6 total weeks. Exclusion Criteria: * Do not speak English or Spanish as a primary language * Are incarcerated * Have a known pregnancy * Are allergic to amide-type local anesthetics * Are unable to tolerate positioning for the procedure * Have a critical illness precluding the ability to perform the procedure.

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Conditions

The condition(s) this trial relates to.

Emergencies Low Back Pain

As listed by the trial registrant

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

Low back 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

  • Rush University Medical Center

    RECRUITING

    Chicago, Illinois, 60612, United States

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