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Which anesthetic keeps pain tracking more accurate? new study aims to find out

NCT ID NCT07511634

Knowledge-focused Sponsor: Pusan National University Yangsan Hospital Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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)

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This status has not been confirmed recently, so it may be out of date.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 will compare two common anesthetics, sevoflurane and desflurane, to see how they affect a pain monitoring tool called the Analgesia Nociception Index (ANI) during surgery. About 80 adults undergoing general anesthesia will be randomly assigned to receive one of the two drugs. The goal is to understand which anesthetic allows for better pain assessment, which could help doctors tailor anesthesia more precisely.

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 80 people

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

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Dec 2026

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

19 to 79 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: * Adults aged 19 to 79 years * Patients undergoing general anesthesia * American Society of Anesthesiologists (ASA) physical status I or II Exclusion Criteria: * History of taking medications that may affect the central nervous system or autonomic nervous system (e.g., anticholinergics, beta-blockers, antidepressants, anxiolytics, hypnotics, or analgesics) * Known hypersensitivity to sevoflurane, desflurane, or other halogenated anesthetics, or a personal or family history of malignant hyperthermia * Neurologic or psychiatric disorders (e.g., depression, dementia, or cerebral infarction) * Arrhythmia * Diabetes mellitus * Drug abuse or alcohol abuse * Vulnerable subjects * Patients aged 80 years or older * Patients with impaired consciousness or those judged to lack the capacity to provide informed consent

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As listed by the trial registrant

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

General anesthesia

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Pusan National University Yangsan Hospital

    Yangsan, Gyeongsangnam-do, 50612, South Korea

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