Clinical trial Recruiting at 1 site Interventional Ages 18 to 65

Exploring cognitive functions in bipolar and major depressive disorders

Official title: Social Cognition, Memory, and Executive Functions in Bipolar Disorder and Major Depressive Disorder

Run by CHU de Reims · NCT06740331 · Data updated 2026-11-12

This study is trying to see how thinking skills are affected in people with bipolar disorder and major depression, and how these issues impact their daily lives and relationships.

Quick facts

Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment180 (estimated)
SponsorCHU de Reims
Academic / other
Locations1 site (Reims)
StatusRecruiting
StartedJanuary 7, 2025
Main results expectedJanuary 7, 2028
Study endsFebruary 7, 2028
Registry record updatedMarch 13, 2026
Trial IDNCT06740331 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals aged 18 to 65 with a diagnosis of bipolar disorder or major depressive disorder who are native French speakers.

Probably not a fit

Patients with significant substance use disorders, major medical illnesses, or uncorrected sensory impairments may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the cognitive impairments associated with bipolar disorder (BD) and major depressive disorder (MDD), focusing on social cognition, memory, and executive functions. It aims to understand how these cognitive deficits affect functional outcomes and quality of life in individuals with these disorders. By analyzing the relationship between social cognition and executive functions, the study seeks to identify distinctive markers that could improve diagnosis and treatment strategies. Participants will include individuals diagnosed with BD or MDD, as well as their first-degree relatives.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic accuracy and treatment strategies for patients with bipolar disorder and major depressive disorder.

How similar studies have gone: While cognitive impairments in these disorders have been studied, this specific approach to linking social cognition and executive functions is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

* Patients between 18 and 65 years old, men or women
* Having a diagnosis of bipolar disorder or depressive disorder
* No substantial change in treatment for 2 weeks preceding study enrollment
* Being a native French speaker
* Patients enrolled in the national healthcare insurance program
* Consenting to participate to the study

Exclusion criteria:

* The presence of any alcohol use disorder or any other substance use disorder in the last six months, except for tobacco dependence
* A significant general medical illness, including neurological disorders or head trauma
* A sensorial impairment uncorrected (visual and/or hearing)

Group 3: First-degree relatives of bipolar patients

Inclusion criteria:

* Participants between 18 and 65 years old, men or women
* Participants having at least one first-degree relative presenting an bipolar disorder (parents, children, siblings)
* Being a native French speaker
* Patients enrolled in the national healthcare insurance program
* Consenting to participate to the study

Exclusion criteria:

* A diagnosis of schizophrenia or of bipolar disorder or of depressive disorder according to DSM-5 criteria
* The presence of any alcohol use disorder or any other substance use disorder in the last six months, except for tobacco dependence
* A significant general medical illness, including neurological disorders or head trauma
* A sensorial impairment uncorrected (visual and/or hearing)

Group 4, 5, 6: Healthy control participants

Inclusion criteria:

* Participants between 18 and 65 years old, men or women
* Being a native French speaker
* Patients enrolled in the national healthcare insurance program
* Consenting to participate to the study

Exclusion criteria:

* A diagnosis of schizophrenia or of bipolar disorder or of major depressive disorder according to DSM-5 criteria
* The presence of any alcohol use disorder or any other substance use disorder in the last six months, except for tobacco dependence
* Participants having one first-degree relative presenting an bipolar disorder or depressive disorder or schizophrenia according to DSM-5 criteria
* A significant general medical illness, including neurological disorders or head trauma
* A sensorial impairment uncorrected (visual and/or hearing)

Where it's running

  • Chu Reims
    Reims, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.