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Nerve block may cut opioid need in bile duct procedure, small study suggests

NCT ID NCT06618781

Knowledge-focused Sponsor: Ankara Etlik City 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This completed observational study in 52 adults compared standard sedation alone to sedation plus a lateral quadratus lumborum block (an injection of numbing medicine near the lower back muscles) during percutaneous transhepatic cholangiography, a procedure to diagnose or treat bile duct blockages. The main goal was to see if the block reduces the amount of opioid painkiller needed during the procedure. Researchers also tracked pain scores, recovery time, and side effects.

What this could mean

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

Active substance
bupivacaine and lidocaine (local anesthetics)
What this could lead to
If results are positive, this could support using quadratus lumborum blocks to reduce opioid needs and improve recovery in similar procedures.
What could go wrong
This is a small observational study (52 patients) with no randomization or blinding, so results may be influenced by bias and may not apply broadly.

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

52 people

The number who actually took part.

Started

Oct 2024

Finished

Feb 2025

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 80 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: * Those between the ages of 18-80 * Those with ASA score I-II-III * Those with body mass index (BMI) between 18-40 * Patients who underwent sedoanesthesia and sedoanesthesia and QLB for PTC procedure Exclusion Criteria: * Those under 18 and over 80 * Those with ASA score IV and above * Those with advanced co-morbidities * Those with a history of bleeding diathesis * Patients with an infection in the area where the block will be performed * Those with a BMI below 18 and above 40 * Patients who underwent surgery under emergency conditions * Those who are pregnant * Those with opioid and local anesthetic allergies- * Those with chronic pain syndrome

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As listed by the trial registrant

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

Demographic data Opioid consumption Rescue analgesic status and time Visual analog score

Contacts and locations

Locations

  • Ankara Etlik City Hospital

    Altındağ, Ankara, 06000, Turkey (Türkiye)

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