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Could selenoproteins be the key to fighting a tough breast cancer?

NCT ID NCT05817227

Knowledge-focused Sponsor: National Cancer Institute, Naples 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is looking at proteins called selenoproteins in people with triple-negative breast cancer (TNBC), a hard-to-treat type. Researchers will measure these proteins in tumor samples and blood from 300 patients and 100 healthy women. The goal is to see if selenoproteins can help predict outcomes or serve as targets for future treatments.

What this could mean

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

What this could lead to
If successful, this could identify new ways to predict or treat triple-negative breast cancer by targeting selenoproteins.
What could go wrong
This is an early observational study, not a treatment trial. It may not lead to direct therapies, and results may not apply to all breast cancer types.

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 300 people

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

Started

May 2022

Expected to finish

Nov 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.

Who is studied

The patients included in the study are all women and have an age below 40 in 26/235 (11.1%) cases, between 40 and 60 in 108/235 (46.0%) cases and over 60 for 101/235 (43.0%) cases. Tumours have the following clinical and pathological characteristics: 204/235 (86.8%) are carcinomiducts and 31/235 (13.2%) are non ductal carcinomas; 202/235 (86%) grade 3, 31/235 (13.1%) grade 2 and 2/235 (0.9%) grade 1; tumour dimensions are less than 2 cm (T1) in 103/225 cases (45.8%), between 2 and 5 cm in 103/225 (45.8%) and greater than 5 cm in 19/225 (8.4%). Expression of Ki67 diproliferation factor was high (\>20%) in 186/227 (81.9%) patients and low (\<20%) in 41/227 (18.1%). At the date of surgery 97/232 (41.8%) patients had lymphonode metastases, while 44/111 (39.6%) had distant metastases.

Ages

18 years and older

Sex

Female participants only

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: * TNBC breast cancer patients, before any drug treatment * healthy women aged 25-60 Exclusion Criteria: * donors suffering from diabetes, hypertension, active infectious states, HIV infection, Hepatitis B or C, chronic inflammatory diseases, current or previous neoplasms, heart disease or drug treatment.

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm triple-negative breast carcinoma

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

    2 sites. 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

  • Istituto Nazionale Tumori - Fondazione "G.Pascale", IRCCS

    RECRUITING

    Naples, Napoli, 80131, Italy

  • Istituto Nazionale Tumori Regina Elena

    RECRUITING

    Roma, Roma, 00144, Italy

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