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Can a simple nerve block cut opioid use after achilles surgery?

NCT ID NCT06886815

Symptom relief Sponsor: Women's College Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 a popliteal nerve block (a numbing injection behind the knee) can better control pain and reduce the need for strong painkillers after surgery to repair a torn Achilles tendon. About 80 adults having this surgery will be randomly assigned to get either the nerve block or a placebo, along with standard pain medicine. Researchers will track pain levels, opioid use, and any nerve-related symptoms during recovery.

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 80 people

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

Started

Mar 2026

Expected to finish

Mar 2028

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

18 to 65 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 - 65 * ASA classification: I - III * BMI \< 35 kg/m2 * Undergoing acute Achilles tendon rupture repair surgery as a day surgery procedure Exclusion Criteria: * Pre-existing neurological deficits or peripheral neuropathy in the distribution of the tibial or common peroneal nerves * Local infection * Contraindication to regional anesthesia (e.g., bleeding diathesis, coagulopathy) * History of use of over 30 mg oxycodone or equivalent per day * Contraindication to any component of a standard multi-modal analgesia * Allergy to local anesthetics * History of significant psychiatric conditions that may affect patient assessment * Pregnancy * Inability to provide informed consent * Patient refusal of popliteal nerve blockade * Prior Achilles tendon surgeries on the operative leg * Unable to speak or read English

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As listed by the trial registrant

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

Acute achilles tendon rupture

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

  • Women's College Hospital

    RECRUITING

    Toronto, Ontario, M5S 1B2, Canada

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