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Can a smaller nerve block ease thyroid surgery pain without hurting breathing?

NCT ID NCT07789548

Symptom relief Sponsor: Assiut University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 27, 2026 · Last updated Sep 02, 2026 · Updated 3 times

Summary

This trial compares two ways of numbing the neck for thyroid surgery: a low-volume block versus a standard-volume block, both using the anesthetic bupivacaine. The goal is to see if the smaller dose controls pain just as well while better protecting the diaphragm, the muscle that helps you breathe. Researchers will measure diaphragm movement and pain scores in 60 adults having thyroidectomy under general anesthesia.

What this could mean

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

Active substance
bupivacaine
What this could lead to
If it works, a smaller dose of anesthetic could provide the same pain relief after thyroid surgery with less risk of weakening the diaphragm, helping patients breathe and recover more easily.
What could go wrong
This is a small, early-stage trial with only 60 patients, so results may not apply to everyone. The low-volume block might not control pain as well as the standard approach, and any nerve block carries risks like bleeding, infection, or allergic reaction.

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

About 60 people

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

Started

Sep 2026

Expected to finish

Oct 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 65 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: * Adult patients aged between 18 and 65 years. * Patients scheduled for elective thyroidectomy under general anesthesia. * American Society of Anesthesiologists (ASA) physical status I-II. * Both sexes will be included. * Patients able to understand the study protocol and provide written informed consent. Exclusion Criteria: * Patient refusal. * Other endocrine diseases (as uncontrolled diabetes mellitus, adrenal disorders, pituitary disorders) * Known allergy or hypersensitivity to local anesthetics. * Coagulopathy or ongoing anticoagulant therapy contraindicating regional anesthesia. * Local infection at the site of needle insertion. * Preexisting diaphragmatic dysfunction or phrenic nerve palsy. * Significant chronic respiratory disease affecting pulmonary function (e.g., severe COPD, restrictive lung disease, uncontrolled asthma). * Morbid obesity (BMI ≥ 35 kg/m²). * Psychiatric or neurological diseases affecting respiratory muscles. * Previous neck surgery or anatomical deformity interfering with cervical plexus --block performance or diaphragmatic ultrasound assessment. * Pregnancy..

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As listed by the trial registrant

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

Post operative pain relief after thyroidectomy

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

  • Assiut main university hospital

    RECRUITING

    Asyut, Egypt