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Nerve block showdown: which eases Post-Surgery pain best?

NCT ID NCT07001657

Symptom relief Sponsor: Antalya Training and Research 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested two different nerve blocks—PECS II and SPSIP—to see which provides better pain relief after breast cancer surgery. 118 women received one of the blocks before surgery, and researchers measured how much opioid painkiller they needed in the first 24 hours. The goal is to find a more effective way to manage pain and reduce opioid use.

What this could mean

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

Active substance
bupivacaine hydrochloride
What this could lead to
If one block works better, it could mean less pain and fewer opioids after breast cancer surgery.
What could go wrong
This is a small, completed trial comparing two established techniques, so no major breakthrough is expected. 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

118 people

The number who actually took part.

Started

May 2025

Finished

Jan 2026

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 65 years

Sex

Female participants only

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: * Female patients aged 18-65 years * American Society of Anesthesiologists (ASA) physical status I-III * Body Mass Index (BMI) less than 35 kg/m² * Unilateral breast cancer surgery Exclusion Criteria: * Patient refusal to participate * BMI greater than or equal to 35 kg/m² * ASA physical status IV-V * Known allergy to any study medications * Pregnancy or breastfeeding * Presence of neuromuscular diseases * Chronic opioid use * Chronic pain syndromes * Significant organ failure (e.g., cardiac, hepatic, renal) * Contraindications to regional nerve blocks * Bilateral breast surgery

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Conditions

The condition(s) this trial relates to.

breast cancer Pain, Postoperative

As listed by the trial registrant

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

Nerve block

Contacts and locations

Locations

  • Antalya Training and Research Hospital

    Antalya, 07010, Turkey (Türkiye)

More trials for these conditions

Other studies related to the condition(s) this trial covers.