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Brain scans reveal Sleep's hidden toll on breast cancer survivors

NCT ID NCT05414357

Knowledge-focused Sponsor: Centre Francois Baclesse 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 study looks at how sleep disturbances impact thinking skills and quality of life in 75 women treated for breast cancer. Participants will undergo brain scans, sleep tracking, and cognitive tests over six months. The goal is to understand the links between sleep, brain function, and daily well-being, without testing any new treatment.

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 75 people

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

Started

Mar 2023

Expected to finish

Sep 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

45 to 65 years

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: * Patients aged 39 to 69 years * Patient with operated localized breast cancer who may or may not be starting adjuvant chemotherapy * Patient with education level 3 "end of primary education" * Patient with a good command of the French language * Patient with access to the Internet from a computer at home * Patient having signed the consent to participate in the study * Patient with no pre-existing cognitive impairment at the time of cancer diagnosis * Patient with a sleep complaint (ISI \> 7) Exclusion Criteria: * Patient with metastatic cancer * Patient with a primary cancer other than breast cancer * Patient with a history of neurological damage * Patient with treated sleep apnea * Patient with drug use or alcohol abuse (≥3 drinks/day on average and/or \>10 drinks/week) * Patient with a treatment that has not been stabilized for at least 3 months (hypnotics, antidepressants, anxiolytics) * Patient with a personality disorder and/or an evolving psychiatric pathology * Patient with a contraindication to MRI (claustrophobia, metallic objects in the body) * Patient with an uncorrected vision problem

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm sleep disorder

As listed by the trial registrant

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

Breast cancer Quality of life Sleep

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

  • Centre François Baclesse

    RECRUITING

    Caen, 14000, France

  • Inserm-Ephe-Unicaen U1077

    NOT_YET_RECRUITING

    Caen, 14000, France

More trials for these conditions

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