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New nerve block combo may prevent breathing problems during shoulder surgery

NCT ID NCT07474896

Symptom relief Sponsor: Poznan University of Medical Sciences 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study compares two types of numbing injections for shoulder surgery. The standard method can sometimes weaken the diaphragm, the main breathing muscle. The new approach uses two different injection sites to avoid that side effect. Researchers will enroll 70 older adults having elective shoulder surgery and measure how well each method controls pain and preserves diaphragm function.

What this could mean

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

Active substance
Ropivacaine 0.2%
What this could lead to
If successful, this could offer a safer anesthesia option for shoulder surgery that reduces the risk of diaphragm paralysis while still controlling pain effectively.
What could go wrong
This is a small, early-phase study (70 participants) focused on a specific older population. The alternative block may not provide equal pain relief, and results may not apply to all patients.

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 70 people

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

Started

Dec 2025

Expected to finish

Jan 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

65 to 100 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 ≥ 65 years * Elective shoulder surgery * ASA I-III * Planned use of regional anesthesia * Signed written informed consent Exclusion Criteria: * Allergy to local anesthetics * Planned continuous catheter technique * BMI \>40 kg/m² * Coagulopathy or anticoagulation * Pre-existing phrenic nerve palsy * Neurological disorder of the operative limb * Pregnancy or breastfeeding * Participation in another clinical trial within 30 days

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Conditions

The condition(s) this trial relates to.

osteoarthritis

As listed by the trial registrant

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

Osteoarthritis shoulder

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

  • Poznan University of Medical Sciences

    RECRUITING

    Poznan, 62-701, Poland

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