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Shock therapy for tennis elbow? tiny needles zap pain away

NCT ID NCT04442321

Symptom relief Sponsor: Universidad Complutense de Madrid 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested a treatment for tennis elbow (lateral epicondylalgia) using ultrasound-guided percutaneous electrical stimulation (PENS) on the radial nerve, combined with exercise. Sixty adults with confirmed tennis elbow were split into two groups: one received real PENS plus exercise, the other a sham (fake) PENS plus exercise. The goal was to see if the real treatment reduced pain and disability better than the sham.

What this could mean

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

Active substance
percutaneous electrical nerve stimulation (PENS) plus exercise
What this could lead to
If it works, this could offer a new, non-surgical way to ease pain and improve function in people with tennis elbow.
What could go wrong
This is a small, completed trial with 60 people, so results may not apply to everyone. The treatment is still experimental and not widely available.

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

60 people

The number who actually took part.

Started

Sep 2020

Finished

Dec 2024

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

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: * Lateral epicondylalgia symptoms confirmed with at least 2 of the 4 following test: 1. pain during palpation of lateral epicondyle 2. pain on resisted wrist extension 3. pain on resisted middle finger extension 4. pain during hand-grip. Exclusion Criteria: * History of fractures, luxations, surgery and/or musculoskeletal disorders in upper limb. * Neurological disorders, inflammatory and/or degenerative diseases. * Having received as treatment techniques that involve needles on the previous 6 months to study enrollment, or having received percutaneous electrical stimulation as a treatment before. * Cervical pathology, fibromyalgia, unstable cardiovascular diseases, pregnant women or under suspect of pregnancy. * Contraindications of needle's insertions: anticoagulant therapy, needle phobia, diabetes, hypothyroidism, lymphoedema, muscular diseases). * Contraindications of electrical current application.

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Conditions

The condition(s) this trial relates to.

epicondylitis

As listed by the trial registrant

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

Tennis elbow

Contacts and locations

Locations

  • Universidad Complutense de Madrid

    Madrid, Madrid, 28040, Spain

More trials for these conditions

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