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Depression genes under the microscope: new study aims to uncover clues

NCT ID NCT00998231

Knowledge-focused Sponsor: Assistance Publique Hopitaux De Marseille 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at how certain genes behave in people with major depression compared to healthy individuals. Researchers collected blood samples from 30 participants to measure the activity of 21 specific genes. The goal is to better understand how depression changes over time at the molecular level, which could one day lead to improved diagnosis or treatment.

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 help identify biological markers for depression, potentially leading to better diagnosis or treatment targets in the future.
What could go wrong
This is a small, early-stage observational study with only 30 participants. It does not test a treatment, so it may not directly lead to new therapies.

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

30 people

The number who actually took part.

Start date

Jul 2009

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

Anyone

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: * Arm MDE: * Hamilton score on depression scale (HAMD-17) \> 20; * No schizophrenia or bipolar disorder or disturbs delirious or evolutionary severe somatic pathology; * Taken care by a psychiatric department. * Arm control: * No history of psychiatric pathology or evolutionary severe somatic pathology Exclusion Criteria: * Arm MDE: * Hamilton score on depression scale (HAMD-17) \< or = 20; * With signs of schizophrenia or bipolar disorder or disturbs delirious; * With evolutionary severe somatic pathology. * Arm control: * With signs of psychiatric pathology or evolutionary severe somatic pathology.

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Conditions

The condition(s) this trial relates to.

major depressive disorder

As listed by the trial registrant

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

Major depressive episode

Contacts and locations

Locations

  • Assistance Publique-Hôpitaux de Marseille

    Marseille, France

More trials for these conditions

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