Early Identification of Patients Presenting a First Psychotic Episode, Non Answering to First Line Support Strategies (PEPsy)

December 12, 2025 updated by: Centre Hospitalier Universitaire de Saint Etienne

Early Identification of Patients Presenting a First Psychotic Episode, Non Answering to First Line Support Strategies: A Multicentric Study

Researchers propose in this project to evaluate predictive factors of non response. It is defined by the lack of symptomatic remission at month 3, for patients presenting a first episode of psychosis. It will be performed on objective markers taken from imagery techniques. The link between evolution of these markers and clinical measures will be studied.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Recently, radiological markers demonstrated a good capacity to discriminate first episode of psychosis patients, that will show a bad response to treatment. Furthermore, automatic learning methods were recently successfully applied to neurological data, but never for the first episode psychosis patients. These powerful methods are based on multivariate analyses allowing the prediction at an individual stage. The possibility to identify more precisely the population of non-answering patients would allow the adaptation of the support in first attention for these patients, and consequently to perform appropriate cares.

Researchers propose in this project to evaluate predictive factors of non response. It is defined by the lack of symptomatic remission at month 3, for patients presenting a first episode of psychosis. It will be performed on objective markers taken from imagery techniques. The link between evolution of these markers and clinical measures will be studied.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
80

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • France
      • Bron, France, 69500
        • Not yet recruiting
        • Chu Le Vinatier
        • Sub-Investigator:
          • Thierry DAMATO, MD
        • Sub-Investigator:
          • Frédéric HAESEBAERT, MD
        • Principal Investigator:
          • Romain REY, MD
      • Clermont-Ferrand, France, 63003
        • Not yet recruiting
        • CHU Clermont-Ferrand
        • Sub-Investigator:
          • Isabelle CHEREAU, MD
        • Principal Investigator:
          • Pierre-Michel LLORCA, MD
      • Grenoble, France, 38000
        • Not yet recruiting
        • CHU Grenoble
        • Principal Investigator:
          • Mircea POLOSAN, MD
        • Sub-Investigator:
          • Clément DONDE-COQUELET, MD
        • Sub-Investigator:
          • Arnaud POUCHON, MD
      • Lyon, France, 69003
        • Not yet recruiting
        • Hôpital Edouard Herriot
        • Principal Investigator:
          • Louis SIMON, MD
        • Sub-Investigator:
          • Emmanuel POULET, MD
      • Saint-Etienne, France, 42100
        • Recruiting
        • CHU Saint Etienne
        • Principal Investigator:
          • Maël PULCINI, MD
        • Sub-Investigator:
          • Christophe GAULD, MD
        • Principal Investigator:
          • Eric FAKRA, MD PhD
        • Sub-Investigator:
          • Maxence RIGON, MD
        • Sub-Investigator:
          • Colas MOREL-PRIEUR, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 35 years (Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Patients suffering of schizophrenia will be included in this study. They do not have ever taken anti-psychotic treatment.

Description

Inclusion Criteria:

  • men and women aged 18-35 years
  • member or beneficiary of a social security scheme,
  • for women, appropriate contraception will be mandatory, as well as a negative pregnancy test,
  • patients with a diagnosis of schizophrenia, schizoaffective disorder or schizophreniform disorder according to the DMS V
  • having never received anti-psychotic treatment,
  • followed in the hospital or outpatient,
  • having given their written informed consent,
  • that the physical examination revealed no significant clinical abnormalities

Exclusion Criteria:

  • Female patients of childbearing period without effective contraception (oral, intramuscular hormonal, intrauterine device, or surgical);
  • Patients pregnant or nursing;
  • Presenting a serious somatic or neurological disease, especially Parkinson's disease, epilepsy, debilitating tardive dyskinesia, cardiovascular disease, severe liver or kidney;
  • Featuring against-indication for an MRI; including: metallic foreign body eye or intracranial, pacemaker, heart valve, surgical clips, claustrophobia, large tattoo in the upper part of the body, not compatible with 3T MRI
  • Having a history of alcohol or drug abuse in the past year;
  • Participating in another clinical trial or being in an exclusion period of the previous protocol;
  • Patients likely to exhibit aggressive behavior self according to the judgment of the investigators.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
First episode of psychosis patients
Patients with schizophrenia will be studied in this clinical trial, and that have never received anti-psychotic treatment. They will perform an MRI.
Procedure: MRI
Magnetic Resonance Imagery will be performed on patients attempted by schizophrenia. The aim of this intervention is an early detection of the non-answering patients to the primary cares.
Other Names:
  • Magnetic Resonance Imagery

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Score of the predictive value of the imagery markers.
Time Frame: Month 3
Evaluate the predictive value for the imagery markers on the therapeutic non-answer at month 3 for patients presenting a first psychotic episode.
Month 3

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Centre Hospitalier Universitaire de Saint Etienne

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Ministry of Health, France

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Eric FAKRA, MD PhD, CHU Saint-Etienne

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 11, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 1, 2030

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2031

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 28, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 29, 2016

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 1, 2016

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 19, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 12, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 1508174
  • 2015-A01756-43 (Other Identifier: ANSM)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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