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Brain boost: exercise and zaps may sharpen mind in tough schizophrenia cases

NCT ID NCT07404319

Symptom relief Sponsor: Kit Wa Chan 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 whether aerobic exercise, alone or with a gentle brain stimulation technique called tDCS, can improve thinking and memory in people with treatment-resistant schizophrenia. About 160 participants will be assigned to exercise, tDCS plus exercise, or a control group for 6 weeks. The goal is to see if these approaches can ease cognitive symptoms that often limit daily life.

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 160 people

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

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Jan 2028

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 to 60 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: * DSM 5 schizophrenia-spectrum disorders * Treatment resistant schizophrenia: inadequate response to ≥2 antipsychotics of adequate dose/duration * Clinically stable ≥4 weeks * Able to provide informed consent Exclusion Criteria: * Neurological disorder (e.g., epilepsy, stroke) or significant head injury * Implanted electronic devices / contraindications to tDCS; scalp lesions at electrode sites * Medical contraindications to moderate aerobic exercise * Substance dependence within 3 months (except nicotine) * Pregnancy

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Conditions

The condition(s) this trial relates to.

Cognitive Dysfunction schizophrenia Schizophrenia, Treatment-Resistant treatment-refractory schizophrenia

As listed by the trial registrant

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

Cognitive impairment Schizophrenia Treatment resistant schizophrenia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • The University of Hong Kong

    Hong Kong, Hong Kong

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