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New strategy aims to stop opioids from causing more pain after breast surgery

NCT ID NCT03812003

Symptom relief Sponsor: Tri-Service General 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 study looked at whether giving a tiny amount of the opioid remifentanil right after surgery could prevent a condition called opioid-induced hyperalgesia, where opioids actually make pain worse. It involved 41 women with breast cancer having breast surgery under total intravenous anesthesia. The goal was to reduce pain and the need for extra painkillers after the operation.

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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

41 people

The number who actually took part.

Started

Jan 2019

Finished

Feb 2020

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

20 to 80 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: * Subject's ASA (American Society of Anesthesiologists) Physical Status Classification: I (A normal healthy patient)\~III(A patient with severe systemic disease) * Subject has breast cancer and scheduled for breast surgery using total-intravenous anesthesia(TIVA) Exclusion Criteria: * Subject's ASA (American Society of Anesthesiologists) Physical Status Classification \>3 * Subject doesn't receive total-intravenous anesthesia(TIVA) during surgery * Subject has psychiatric disease * allergic to opioid or propofol * History of alcoholism * History of drug abuse

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Conditions

The condition(s) this trial relates to.

breast cancer opiate dependence

As listed by the trial registrant

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

Opioid-induced disorders

Contacts and locations

Locations

  • Tri-Service General Hospital

    Taipei, 114, Taiwan

More trials for these conditions

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