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Can a nerve zap in the ear ease chikungunya joint pain?

NCT ID NCT07523126

Symptom relief Sponsor: Universidade Federal de Pernambuco 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 a gentle electrical stimulation of the vagus nerve in the ear (taVNS) to reduce chronic joint pain in the legs caused by Chikungunya fever. 51 adults with pain lasting at least 3 months will be randomly assigned to taVNS, standard TENS, or a sham device. The goal is to see if taVNS can lower pain and improve function and quality of life.

What this could mean

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

Active substance
transcutaneous vagus nerve electrical stimulation (taVNS)
What this could lead to
If it works, this could offer a drug-free way to manage long-term joint pain after Chikungunya fever, improving quality of life.
What could go wrong
This is a small, early-stage trial with only 51 participants. The effect may be small or no better than placebo, and results may not apply to everyone.

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 51 people

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

Started

Feb 2025

Expected to finish

Jun 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: * People of either sex who are over 18 years of age, Clinical diagnosis of Chikungunya confirmed by laboratory test and/or medical report; Chronic joint pain in one or more lower limb joints lasting at least 3 months after infection; Ability to ambulate independently or with assistive devices; Intact skin integrity in the auricular region and areas of electrode placement; Residing in the state of Pernambuco. Exclusion Criteria: * Neurological disorders; Decompensated cardiorespiratory diseases; Pre-existing systemic rheumatic diseases prior to Chikungunya infection; History of seizures or epilepsy; Presence of implanted electronic devices (e.g., pacemakers); Pregnancy; Orofacial or ear pain; Skin lesions, infections, or impaired sensation at stimulation sites; Thrombophlebitis, ischemic or ulcerated areas; Neoplasms; Use of medications or substances that increase seizure risk; Current participation in other physiotherapy treatments during the study period; Conditions that prevent attendance at the study site.

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Conditions

The condition(s) this trial relates to.

chikungunya Chronic Pain

As listed by the trial registrant

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

Chronic pain and comorbid emotional problems Chronic pain management

Contacts and locations

Locations

  • Federal University of Pernambuco - Department of Physiotherapy, Electrophototherapy Laboratory

    Recife, Pernambuco, 50670-420, Brazil

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