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Ketamine gargle: a simple trick to ease Kids' pain after tonsillectomy?

NCT ID NCT07558044

Symptom relief Sponsor: Hospital Universitario de Caracas 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether having children gargle with a ketamine solution just before tonsillectomy surgery could reduce their pain afterward. 420 children aged 4 to 12 years participated, with half receiving the ketamine gargle and half a placebo (salt water). The researchers measured pain levels and any complications in the first 24 hours after surgery to see if this simple, low-cost approach works.

What this could mean

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

Active substance
Ketamine gargle
What this could lead to
If it works, this could offer a simple, low-cost way to reduce pain after tonsillectomy in children, potentially reducing the need for stronger painkillers.
What could go wrong
This is a single completed study. The results may not apply to all children or settings, and ketamine can cause side effects like dizziness or nausea.

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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

420 people

The number who actually took part.

Started

Jan 2024

Finished

Jan 2025

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

4 to 12 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: * Children aged 4-12 years * ASA physical status I-II * Scheduled for elective adenotonsillectomy * Ability to gargle and spit the study solution Exclusion Criteria: * Known hypersensitivity to ketamine * Coagulation disorders * History of neuropsychiatric disease * Active upper respiratory tract infection Exclusion Criteria: \-

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Conditions

The condition(s) this trial relates to.

Pain, Postoperative

As listed by the trial registrant

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

Adenotonsillectomy Postoperative pain Tonsillectomy

Contacts and locations

Locations

  • VERAZA

    Caracas, Miranda, 1040, Venezuela

More trials for these conditions

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