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Smaller tube, less pain? new study tests sore throat remedy

NCT ID NCT07511998

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study tests whether using a smaller breathing tube (endotracheal tube) during surgery reduces sore throat afterward. 246 women having elective surgery will be randomly assigned to a standard-size or smaller tube. The main goal is to see if the smaller tube lowers the chance of sore throat within 24 hours after surgery.

What this could mean

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

Active substance
TaperGuard™ endotracheal tube (a breathing tube with a tapered cuff)
What this could lead to
If it works, this could lead to a simple way to reduce sore throat and hoarseness after surgery, improving patient comfort.
What could go wrong
This is a small, early-stage study in women only. The smaller tube might not reduce sore throat as hoped, or could cause other issues like breathing difficulties.

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 246 people

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

Started

Feb 2025

Expected to finish

May 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

20 to 70 years

Sex

Female participants only

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: * Female patients. * Aged between 19 and 70 years. * American Society of Anesthesiologists (ASA) physical status I, II, or III. * Patients scheduled to undergo elective surgery under general anesthesia requiring endotracheal intubation. * Patients undergoing surgery in the supine or lithotomy position. * Patients who voluntarily provide written informed consent after receiving a full explanation of the study's purpose and procedures Exclusion Criteria: * Predicted difficult intubation. * Confirmed diseases or anatomical abnormalities of the head and neck, including the pharynx and larynx. * Presence of preoperative sore throat. * Risk of pulmonary aspiration. * Requirement for the prone position or other surgical positions where airway management with a TaperGuard™ ETT is difficult. * Scheduled for head and neck surgery or other procedures where the use of a TaperGuard™ ETT is challenging. * Potential pregnancy. * Inability to provide informed consent or make a decision to participate after receiving the study explanation

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Conditions

The condition(s) this trial relates to.

Hoarseness

As listed by the trial registrant

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

Hoarseness Postoperative sore throat

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

  • Kyungpook National University Chilgok Hospital

    Daegu, Daegu, 41404, South Korea

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