Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Predicting Treatment Response in Psychiatric Disorders Using Biological Markers

Official title: Treatment Resistance in Psychiatric Disorders: the Search for Biological Markers Predictive of Response to Treatment

Run by Centre Hospitalier St Anne · NCT07741981 · Data updated 2026-11-12

This study tests whether biological markers can predict which patients with psychiatric conditions will respond to treatment.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment700 (estimated)
SponsorCentre Hospitalier St Anne
Academic / other
Locations1 site (Paris)
StatusRecruiting
StartedAugust 20, 2026
Main results expectedNovember 1, 2036
Study endsSeptember 1, 2038
Registry record updatedSeptember 21, 2026
Trial IDNCT07741981 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (18+) with a DSM-5 psychiatric disorder who are starting a new treatment and have drug-resistant disease as defined by the protocol.

Probably not a fit

Patients who do not show the targeted biomarker profile or who do not exhibit a measurable response to treatment may not experience a benefit.

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

What this trial studies

This interventional study explores links between inflammation and treatment resistance across psychiatric disorders such as schizophrenia, TRD, bipolar disorder, catatonia, and OCD. It uses biological samples (blood, CSF via lumbar puncture, stool, and skin microbiopsy) alongside psychometric scales to identify markers that may predict treatment response. The goal is to understand how immune and inflammatory processes relate to how patients respond to therapies. The trial is conducted at centers in Paris, led by Centre Hospitalier St Anne with Collaboration from GHU Paris Psychiatry & Neurosciences. Participants include adults starting a new treatment and meeting DSM-5 criteria for a psychiatric disorder, with appropriate safety and consent procedures in place.

Why it matters

Potential benefit: If successful, the study could help tailor treatments based on a patient’s biomarker profile to improve response rates.

How similar studies have gone: Previous research has shown associations between inflammatory markers and treatment response in depression and other psychiatric conditions, supporting the rationale for biomarker-based prediction.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient aged ≥ 18 years old;
* Patient suffering from a psychiatric disorder according to DSM-5 criteria;
* Patient with drug-resistant disease according to the definition of the protocol
* Patient starting a new treatment for his pathology;
* Patient informed and having signed an informed consent;
* Patient covered by the social security system.

Exclusion Criteria:

* Patient with major neurocognitive disorder diagnosed (dementia syndrome)
* Pregnant, laboring, or breastfeeding female patients
* Patient deprived of liberty by judicial or administrative decision. Patient in psychiatric care under constraints may be included.
* For patients accepting the lumbar punction: patients who are unable to control themselves and are likely to engage in physical or violent behavior.

Where it's running

  • GHU Paris - Psychiatrie et Neurosciences
    Paris, 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.
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.