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Brain zapping study aims to unlock tDCS secrets

NCT ID NCT03056170

Knowledge-focused Sponsor: Hospices Civils de Lyon 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study used a technique called transcranial direct current stimulation (tDCS) to apply a mild electrical current to the brain in 37 healthy adults. Researchers used advanced brain scans to measure changes in brain activity, connections, and dopamine levels during and after a single 30-minute session. The goal was to understand how tDCS works at a biological level, which could help improve its use as a therapy for conditions like schizophrenia.

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) device
What this could lead to
If successful, this study could reveal how tDCS changes brain activity and dopamine levels, helping to refine its use for conditions like schizophrenia.
What could go wrong
This is a small, early study in healthy volunteers, not patients. It only tests a single session, so results may not predict long-term effects or benefits for any disease.

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

37 people

The number who actually took part.

Started

Nov 2015

Finished

Jun 2017

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 45 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * non smoker * right handed * non psychotropic consumption * no medical treatment except oral contraception * no psychiatric or somatic (neurological, endocrine, cardiac, renal) disorders * affiliated to the French social security Exclusion Criteria: * No Consent formed signed * For female participants : pregnancy * contraindications to stimulation by tDCS or to an MRI exam * being in an exclusion period or over the annual compensation threshold * participation in another study using ionizing radiation in less than a year

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As listed by the trial registrant

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

Healthy

Contacts and locations

Locations

  • Le Vinatier

    Bron, 69500, France

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