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Does anesthesia change your brain? new study investigates

NCT ID NCT07388160

What the study statuses mean

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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 Results may not be published yet.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)

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Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
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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

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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This status has not been confirmed recently, so it may be out of date.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 looks at how general anesthesia affects certain brain chemicals and thinking skills. Researchers will compare 160 adults having gallbladder surgery: those who have never had anesthesia before and those who have had it multiple times. The goal is to understand if repeated anesthesia exposure is linked to changes in brain health.

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.

Participants

About 160 people

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

Expected to start

Jan 2026

An estimate. Start dates often move.

Expected to finish

Sep 2026

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

This study will enroll adult patients aged 18-65 years scheduled for elective cholecystectomy surgery at Malatya Turgut Özal University Training and Research Hospital. Participants will be divided into two groups based on their previous general anesthesia exposure history: (1) patients with no prior general anesthesia exposure (control group, n=80), and (2) patients with at least one or more previous general anesthesia exposures (study group, n=80). Healthy volunteers with no previous surgical or anesthesia history will comprise the control group, while patients with previous surgical procedures requiring general anesthesia will comprise the study group. Both groups will be matched for age and body mass index. Participants with chronic neurological diseases, psychiatric disorders, metabolic syndrome, chronic inflammatory conditions, or recent immunosuppressive therapy will be excluded.

Ages

18 to 65 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: * Age 18-65 years * Scheduled for elective cholecystectomy surgery * Either no previous general anesthesia exposure OR at least one or more previous general anesthesia exposures * Ability to provide informed consent * American Society of Anesthesiologists (ASA) physical status I-II Exclusion Criteria: * Chronic neurological diseases (Alzheimer's disease, Parkinson's disease, multiple sclerosis, etc.) * Psychiatric illness requiring medication * Metabolic syndrome (diabetes mellitus, hypertension, cardiac disease) * Chronic inflammatory diseases (rheumatoid arthritis, systemic lupus erythematosus, etc.) * Corticosteroid or immunosuppressive therapy within the last 6 months * Patients requiring intensive care admission * Pregnancy or breastfeeding * Known allergy to anesthetic agents * Inability to provide informed consent

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Conditions

The condition(s) this trial relates to.

cognitive disorder Cognitive Dysfunction Neuroinflammatory Diseases neuronitis

As listed by the trial registrant

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

How to take part

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  1. The official record

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

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  2. A doctor treating you

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More trials for these conditions

Other studies related to the condition(s) this trial covers.