Which pain block is best for gallbladder surgery?

NCT ID NCT07589491

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two types of nerve blocks—Intertransverse Process Block and M-TAPA—for pain after laparoscopic gallbladder removal. Sixty adults will be randomly assigned to receive one of the blocks. The main goal is to see which block provides better pain relief and reduces the need for opioids in the first 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.

What this could lead to
If one block works better, it could mean less pain and fewer opioids after gallbladder surgery.
What could go wrong
This is a small, early-stage trial with only 60 people, so results may not apply to everyone. Both blocks are already used, so no major breakthrough is expected.

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 60 people

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

Expected to start

Nov 2026

An estimate. Start dates often move.

Expected to finish

Oct 2027

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: * Patients aged 18-65 years * ASA physical status I-III * Scheduled for elective laparoscopic sleeve gastrectomy * Body mass index (BMI) 18-35 kg/m² * Ability to understand and use the patient-controlled analgesia (PCA) device * Ability to provide written informed consent Exclusion Criteria: * Refusal to participate * Allergy to local anesthetics * Infection at the injection site * Coagulopathy or ongoing anticoagulant therapy * Chronic opioid use or opioid dependence * Severe hepatic or renal insufficiency * Pregnancy or breastfeeding * Cognitive impairment or inability to communicate pain scores * Body mass index (BMI) \>35 kg/m²

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Conditions

The condition(s) this trial relates to.

atrioventricular block Pain, Postoperative

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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