Collection of blood samples to study inflammation in psychiatric disorders

Biocollection on Peripheral Inflammation in Psychiatric Pathologies

Observational Nantes University Hospital · NCT05934474

This study is trying to see if blood samples from people with psychiatric disorders like schizoaffective disorder and bipolar disorder can help us understand inflammation and improve diagnosis and treatment.

Quick facts

Study typeObservational
Enrollment300 (estimated)
Ages18 Years and up
SexAll
SponsorNantes University Hospital Academic / other
Locations1 site (Nantes)
Trial IDNCT05934474 on ClinicalTrials.gov

What this trial studies

This observational study aims to collect biological samples and associated phenotypic data from patients diagnosed with various psychiatric disorders, including schizoaffective disorder and bipolar disorder. The hypothesis is that peripheral inflammatory biomarkers may be common across these conditions, potentially leading to better diagnostic and prognostic tools. Participants will undergo standard blood sampling procedures and interviews with psychiatrists to assess their symptoms using standardized scales. The study builds on previous research and aims to contribute to a larger European research initiative.

Who should consider this trial

Good fit: Ideal candidates include adults diagnosed with schizoaffective disorder, bipolar disorder I or II, or related psychotic disorders who are under psychiatric care at Nantes University Hospital.

Not a fit: Patients who are pregnant, have a recent history of cancer, or have certain medical conditions such as autoimmune diseases will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to the identification of biomarkers that improve diagnosis and treatment for patients with psychiatric disorders.

How similar studies have performed: While the approach of using inflammatory biomarkers in psychiatric disorders is being explored, this specific study's methodology is novel and has not been extensively tested in this context.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Major patient
* Patient with one of the following diagnoses confirmed by a psychiatrist:

  * Characterized depressive episode with psychotic features,
  * Bipolar disorder type I
  * Bipolar disorder type II
  * Schizoaffective disorder
  * Schizophrenia
  * Schizophreniform disorder
* Patient under psychiatric care at Nantes University Hospital
* Patients weighing at least 45kg
* Patient affiliated to a social security scheme or beneficiary of such a scheme
* Patient who has given informed consent to participate in the study

Exclusion Criteria:

* Pregnant,
* History of cancer in the last 5 years,
* Vaccination within the last 4 weeks,
* Acute or chronic infection,
* Medical history of organ transplant,
* Medical history of autoimmune disease,
* Hearing impairment making it impossible to complete study questionnaires,
* Patient under court protection

Where this trial is running

Nantes

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Schizoaffective Disorder, Depressive TypeBipolar Disorder IBipolar Disorder II
Last reviewed 2026-06-13 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.