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One injection vs. two: a new approach to shoulder surgery pain?

NCT ID NCT07762417

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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 13, 2026 · Last updated Aug 14, 2026 · Updated 1 time

Summary

This trial tests whether a single nerve block (SPENG) can match the pain relief of a combined two-nerve block approach after shoulder arthroscopy. Adults aged 18-70 undergoing elective shoulder surgery will be randomly assigned to receive either the SPENG block or the combined suprascapular and axillary nerve blocks. The main goal is to compare the highest pain scores in the first 24 hours after surgery, while also looking at factors like how long the block takes, opioid use, and recovery quality.

What this could mean

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

Active substance
Shoulder Posterior Pericapsular Nerve Group (SPENG) block, a single-injection ultrasound-guided nerve block procedure
What this could lead to
If the SPENG block works as well as the combined nerve blocks, it could offer a simpler, faster, and potentially safer way to manage pain after shoulder surgery.
What could go wrong
This is a small, single-center trial, and the SPENG block may not provide adequate pain relief compared to the established technique. There are also risks of nerve block complications, though rare.

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

Jun 2027

An estimate. End dates often move.

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 70 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: * Age 18 to 70 years * American Society of Anesthesiologists (ASA) physical status I-III * Scheduled to undergo elective shoulder arthroscopy under general anesthesia * Able to understand the Numeric Rating Scale for pain assessment * Able and willing to provide written informed consent Exclusion Criteria: * Known allergy or hypersensitivity to local anesthetics used in the study * Infection at the planned block injection site * Coagulopathy or ongoing anticoagulant therapy that cannot be appropriately interrupted for peripheral nerve block * Pre-existing neurological deficit affecting the operative upper extremity * Moderate or severe pulmonary disease * Known diaphragmatic dysfunction * Chronic opioid use * Chronic pain syndrome * Body mass index greater than 35 kg/m² * Pregnancy or breastfeeding * Inability to understand or reliably report Numeric Rating Scale pain scores * Inadequate sonographic window preventing safe performance of the allocated block technique before randomization

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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.

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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