Clinical trial Recruiting at 2 sites Observational Ages 15 to 30

Analyzing speech to predict psychosis in at-risk patients

Official title: Semantic and Syntactic Computerized Analysis of Free Speech

Run by University Hospital, Brest · NCT03525054 · Data updated 2026-11-12

This study is trying to see if analyzing the way people at high risk for schizophrenia speak can help predict if they will develop psychosis.

Quick facts

Study typeObservational
Ages15 Years to 30 Years
SexAll
Enrollment215 (estimated)
SponsorUniversity Hospital, Brest
Academic / other
Locations3 sites (Brest and 2 other locations)
StatusRecruiting
StartedMay 18, 2018
Main results expectedMay 2, 2030
Study endsMay 2, 2030
Registry record updatedJune 2, 2026
Trial IDNCT03525054 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals aged 15 to 30 who have exhibited suicidal thoughts or behaviors and are at ultra-high risk for psychosis.

Probably not a fit

Patients with a history of psychosis or those who cannot safely participate in outpatient treatment 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 observational study aims to identify linguistic markers that may predict the transition to schizophrenia in patients at ultra-high risk. By utilizing computerized speech analysis techniques, including Latent Semantic Analysis, the study will analyze speech patterns from audio recordings of initial medical interviews. The goal is to validate a predictive model in the French language that can accurately forecast psychotic transitions based on subtle speech disorganization. The study will involve a longitudinal multicenter cohort approach to gather comprehensive data over time.

Why it matters

Potential benefit: If successful, this study could lead to early identification and intervention for individuals at risk of developing schizophrenia.

How similar studies have gone: Previous studies using computerized speech analysis have shown promise in identifying markers for schizophrenia, suggesting this approach may be effective.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Major and/or minor from 15 to 30 years old
* Who alleged a suicidal gesture or idea or behavior that has repercussions in their emotional, social or professional life
* If patients receive neuroleptic treatment that impairs cognitive abilities, a one-week wash-out period will be scheduled prior to assessment.
* Affiliated with or beneficiary of a health insurance/social security system
* Able and willing to provide written informed consent

Exclusion Criteria:

* History of psychosis
* Risk of self-harm or violence not compatible with outpatient treatment
* QI\<70 (WAIS)
* Neurological disorder or major health problem
* Impossibility to interrupt neuroleptic treatment for one week
* Refusal to participate

Where it's running

  • CHRU de Brest
    Brest, France
    Recruiting
  • CH de SAINT ANNE
    Paris, France
    Recruiting
  • Meunier Sophie
    Caen, France
    Not yet 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.
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.