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No armpit surgery for breast cancer? new registry tracks Real-World results

NCT ID NCT07370571

Knowledge-focused Sponsor: Clinica Universidad de Navarra, Universidad de Navarra 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 will track 827 people with early breast cancer who had breast surgery but no armpit (axillary) surgery. The goal is to see if skipping armpit surgery is safe and how it affects quality of life. Researchers will monitor for cancer coming back in the armpit over three years.

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.

Participants

About 827 people

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

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

Mar 2032

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.

Who is studied

Early stage breast cancer patients with omission of SLN

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: Older than 18 years old cT1-2 cN0 Negative preoperative assessment of the axilla Breast surgery as first treatment No axillary surgery Multifocal/ multicentric breast cancer Candidates to receive breast conserving surgery Written informed consent must be signed and dated by the patient and the investigator prior to inclusion. Patients must be accessible for follow-up. Exclusion Criteria Synchronous distant metastases Any axillary surgery Neoadjuvant treatment Previous malignancy Bilateral breast cancer Previous primary systemic therapy Pregnancy or breastfeeding Pre-operative diagnosis (cytology or histology) of axillary lymph node metastases Pre-operative radiological evidence of multiple involved or suspicious nodes Patients with psychiatric, addictive, or any disorder, which compromises their ability to give informed consent for participation in this study.

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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 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 ↗

  2. 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.

More trials for these conditions

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