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Acupuncture may cut painkiller use after knee surgery

NCT ID NCT04134702

Symptom relief Sponsor: University Medicine Greifswald 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether adding acupuncture to standard pain treatment can lower pain and the need for painkillers after arthroscopic knee surgery. About 60 adults having knee surgery will take part. Half will get standard pain care plus acupuncture with small needles left in place, and the other half will get standard care only. The goal is to see if acupuncture helps with pain, movement, and side effects.

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.

Started

Feb 2019

Expected to finish

Dec 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

19 to 55 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: 1. Patients with an American Society of Anesthesiologists physical status of I to II scheduled for elective ambulatory arthroscopic knee surgery under standardized general anesthesia 2. Surgery time does not exceed 80 minutes 3. Patients without previous opioid and psychotropic medication 4. Patients aged between 19 and 55 years, able to fill in the study questionnaire (Appendix F) 5. Patients who have given written informed consent Exclusion Criteria: 1. Current psychiatric disease 2. Local skin infection at the sites of acupuncture 3. Aged \< 19 or \> 55 years 4. Failure to follow the standardized schema of general anaesthesia 5. Surgery time more than 80 minutes 6. Intraoperative complications (bleeding, required blood transfusion more than 6 units of packed cells, cardiovascular instability, required catecholamines) 7. Patients who consumed opioid medication at least 6 months before surgery 8. Patients who are unable to understand the consent form or to fill in the study questionnaire.

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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.

Postoperative pain; knee arthroscopy; acupuncture

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

  • University Medicine of Greifswald

    RECRUITING

    Greifswald, Vorpommern, 17475, Germany