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New surgery showdown: which technique best stops phantom limb pain?

NCT ID NCT06840262

Symptom relief Sponsor: M.D. Anderson Cancer Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This pilot study tests two surgical methods—targeted muscle reinnervation (TMR) and regenerative peripheral nerve interfaces (RPNI)—alone and together to reduce chronic and phantom limb pain in cancer patients who have had an amputation. About 45 adults will be randomly assigned to one of three groups. The goal is to see which approach is safest and most effective at easing pain.

What this could mean

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

Active substance
surgical procedures (targeted muscle reinnervation and regenerative peripheral nerve interfaces)
What this could lead to
If successful, this study could identify which surgical technique best reduces chronic and phantom limb pain after amputation in cancer patients, improving quality of life.
What could go wrong
This is a small pilot study with only 45 participants, so results may not apply to everyone. The techniques are surgical and carry risks like infection or nerve damage.

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 45 people

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

Started

Aug 2020

Expected to finish

Feb 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

18 years and older

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: * Patients greater than or equal to 18 years of age who are receiving an amputation for oncologic reasons * Patients with available mixed major nerves and donor motor nerves in the amputation stump or reconstructive tissue * Patients able to complete informed consent Exclusion Criteria: * Patients under 18 years of age * Patients unable to give consent * Patients receiving an amputation for non-oncologic purposes * Patients with amputations performed for immediate palliation (life expectancy less than 3 months), as this technique takes a minimum of 3-6 months for effect * Patients with multiple limb amputations * Patients receiving nerve management in a delayed fashion (patients who have previously received an amputation and present with neuroma)

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Conditions

The condition(s) this trial relates to.

cancer

As listed by the trial registrant

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

Amputation

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

  • M D Anderson Cancer Center

    RECRUITING

    Houston, Texas, 77030, United States

More trials for these conditions

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