Ear device zaps vagus nerve in bid to quiet long COVID fatigue and brain fog
NCT ID NCT06585254
First seen Jul 22, 2026 · Last updated Aug 04, 2026 · Updated 3 times
Summary
This trial tests whether a small device that stimulates the vagus nerve through the ear can improve quality of life for people with long COVID who also meet the criteria for ME/CFS (chronic fatigue syndrome). Participants will use the device daily for six weeks, and researchers will compare two different stimulation settings to see which one works better. The goal is to reduce fatigue, pain, post-exertional malaise, and brain fog.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- a device that gently stimulates the vagus nerve through the ear (transcutaneous vagus nerve stimulation)
- What this could lead to
- If it works, this could point toward a drug-free way to manage debilitating symptoms like fatigue, pain, and brain fog in long COVID and ME/CFS.
- What could go wrong
- This is a small, early-stage trial comparing two stimulation settings, not a proven treatment. The device may not help, and some people may find the stimulation uncomfortable.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2024
- Expected to finish
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Feb 2027
An estimate. End dates often move.
- Lead sponsor
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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
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21 to 70 years
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Must have had documented Covid infection and then fulfill 2015 case definition for ME/CFS * Chalder Fatigue Scale score of 4 or greater * SF-36 Physical Function scale score ≤70 * VAS values of 3 or higher from 0 \[none\] 3 \[substantial\] to 5 \[very severe burden\] on at least two of the following symptoms - fatigue; widespread pain, brain fog, post-exertional malaise Exclusion Criteria: * BMI ≥30 * Hospitalized for COVID-19 infection * BMI ≥30 * Pregnancy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Icahn School of Medicine at Mount Sinai
New York, New York, 10029, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can wearables decode the mystery of fatigue?
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- Digital fatigue detectives: can wearables unmask the hidden toll of MS and long COVID?