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Could a tiny zap replace painkillers for back pain in the ER?

NCT ID NCT07183176

Symptom relief Sponsor: Cliniques universitaires Saint-Luc- Université Catholique de Louvain 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study tests whether a mild electrical device called TENS can safely relieve sudden low back pain in the emergency room. About 250 adults with acute back pain will receive either real TENS or a fake device for 30 minutes. The goal is to see if TENS reduces pain enough to avoid stronger drugs like morphine.

What this could mean

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

Active substance
transcutaneous electrical nerve stimulation (TENS) device
What this could lead to
If it works, this could offer a drug-free pain relief option for acute low back pain in the emergency department.
What could go wrong
This is a relatively small, early-stage trial. Previous studies on TENS for pain have had mixed results, and the placebo effect can be strong with devices.

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 250 people

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

Expected to start

Sep 2025

An estimate. Start dates often move.

Expected to finish

Sep 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: * All patients admitted to the emergency department and aged over 18 years with pain (EN \> 3) related to acute low back pain. The lumbar region is defined as the anatomical area between the costal margin and the gluteal fold. Acute low back pain is defined by the World Health Organisation, and by part of the literature, as a low back pain that appeared less than 6 weeks ago. Exclusion Criteria: Refusal to participate in study, refusal to sign informed consent * Consent is impossible to obtain (cognitive impairment, language barrier, etc.) * Patients with low back pain lasting more than \> 6 weeks * Pregnant women * Patient requiring immediate medical attention (vital distress). * Patient already treated with a TENS * Patient with a body temperature \> 38°C * Patient known to have a spinal infection * Lumbar pain linked to trauma * Patient with known systemic or spinal rheumatological disease * Patient with a known systemic inflammatory disease * A patient with a known chronic pain condition such as fibromyalgia * Patient with pain radiating into the lower limb along the course of one of the following nerves (L3-L4-L5- S1)

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As listed by the trial registrant

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

Acute back pain Emergency department patient

How to take part

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  1. 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 ↗

  2. A doctor treating you

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