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Zapping the brain to clear long COVID fog: a new hope?

NCT ID NCT07709234

Not yet recruiting Symptom relief Sponsor: University of Las Palmas de Gran Canaria Source: ClinicalTrials.gov ↗

First seen Jul 16, 2026 · Last updated Jul 23, 2026 · Updated 3 times

Summary

This study tests whether a gentle, non-invasive brain stimulation technique called transcranial direct current stimulation (tDCS) can improve quality of life, reduce fatigue, and clear brain fog in people with long COVID. Twenty adults with persistent fatigue or cognitive problems will receive 30 sessions of tDCS over the left prefrontal cortex. Researchers will measure changes in thinking, energy, mood, sleep, and brain activity before and after treatment.

What this could mean

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

Active substance
transcranial direct current stimulation (tDCS), a non-invasive brain stimulation device that delivers a mild electrical current to the scalp
What this could lead to
If it works, this could point toward a drug-free, at-home treatment for long COVID brain fog and fatigue.
What could go wrong
This is a very small, early feasibility study with only 20 participants and no placebo group, so results may not be conclusive or generalizable.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

cognitive disorder Cognitive Dysfunction Fatigue long COVID-19 Mental Fatigue post-COVID-19 disorder

As listed by the trial registrant

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

COGNITIVE DYSFUNCTION FATIGUE LONG COVID POST-COVID CONDITIONS

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

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