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Could ionized gas help fight breast cancer after surgery?

NCT ID NCT06222788

Disease control Sponsor: Centre hospitalier de l'Université de Montréal (CHUM) 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 14, 2026 · Last updated Aug 14, 2026

Summary

This trial tests whether a form of ionized gas, called non-thermal plasma, can be safely applied to the area where a breast tumor was removed during surgery. The goal is to find the highest safe dose and see how well patients tolerate it, while also checking cosmetic effects. Adults with breast cancer scheduled for a lumpectomy may participate, and they will receive a single plasma treatment during their operation.

What this could mean

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

Active substance
Non-thermal plasma (ionized gas) applied to the tumor bed during surgery
What this could lead to
If safe, this approach could offer a new way to treat the area around a removed breast tumor, potentially reducing the chance of cancer returning.
What could go wrong
This is an early safety trial with only 30 participants, so it may not prove effective. Risks include potential side effects like infection, skin ulcers, or chest wall 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 30 people

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

Started

Apr 2025

Expected to finish

Dec 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 years and older

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: 1. Age ≥18 years at the time of signing study consent. 2. ECOG ≤2. 3. Patient with T1-4 breast cancer for groups A and B; patient with T1/T2 breast cancer for group C (based on physical exam, not radiological measurements). 4. Patient is scheduled to undergo a lumpectomy. Exclusion Criteria: 1. Prior treatment for the tumor of interest (including chemotherapy, immunotherapy, radiotherapy). 2. Patient planning to or undergoing intraoperative radiotherapy. 3. Diabetes (types I and II). 4. Hypercortisolism. 5. Collagen vascular disease. 6. Patient requiring systemic corticosteroids at physiologic doses exceeding 10 mg/day of prednisone or its equivalent. 7. Patient receiving daily chemotherapy for rheumatological conditions. 8. Pregnancy (a urine pregnancy test must be obtained for non-sterile women of childbearing potential prior to surgery).

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm

As listed by the trial registrant

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

Breast cancer

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

  • Centre Hospitalier de l'Université de Montréal - CHUM

    RECRUITING

    Montreal, Quebec, h2X0A9, Canada

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