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Decoding depression: sleep rhythms as biomarkers?

NCT ID NCT05866991

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 12, 2026 · Last updated Aug 13, 2026 · Updated 1 time

Summary

This study builds a large French cohort of 1,000 people experiencing a major depressive episode to examine their sleep and circadian rhythms. Researchers will use sleep recordings (polysomnography) and psychiatric evaluations to identify distinct patient subgroups and potential biomarkers. The goal is to better understand the biology of depression and pave the way for more personalized care.

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
This could help identify biological markers of depression, leading to more personalized diagnosis and treatment approaches.
What could go wrong
As an observational study, it cannot prove cause and effect. The findings may not translate into immediate clinical tools or benefit all patients.

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 1,000 people

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

Started

Feb 2023

Expected to finish

May 2033

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 entry point for the cohort is any patient with a major depressive episode, in order to integrate the maximum variance in terms of manifestations, and thus to be able to contrast the different clinical pictures according to the biomarkers of sleep and biological rhythms. The aim of this cohort is to pool the efforts of this network and to homogenise the assessments, in order to characterise more precisely and in a standardised manner the alterations in sleep and rhythms in depressive disorders, according to the different subtypes of disorder.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

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: * Individuals with depressive episode characterized according to the DSM-5 criteria regardless of the associated characteristics and comorbidities. * Adult and child * Affiliated to a social security Exclusion Criteria: * don't understand or read french * Medical condition incompatible with administration of questionnaire * impossibility to give informed decision (subject in an emergency condition, etc.)

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Conditions

The condition(s) this trial relates to.

Depression disease major depressive disorder seasonal affective disorder

As listed by the trial registrant

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

Major depressive episode

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

  • Hôpital Bichat Claude Bernard

    RECRUITING

    Paris, Paris, 75018, France

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