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MicroRNAs as Biomarkers in First Episode Schizophrenia (MIRFEST)

10 juillet 2026 mis à jour par: Juan Gallego Angel, Northwell Health

MicroRNAs in Neural-Derived Extracellular Vesicles as Biomarkers in First Episode Schizophrenia

This study investigates whether tiny molecules called microRNAs (miRNAs), found in special brain-derived "packages" (neural-derived extracellular vesicles, or NDEs) that travel from the brain into the blood, can serve as helpful indicators (biomarkers) for schizophrenia. Currently, doctors diagnose schizophrenia and monitor treatment primarily through clinical interviews, which can be slow and imprecise. This study will work with 80 individuals recently diagnosed with first-episode schizophrenia who are beginning treatment with either aripiprazole or risperidone, along with 80 healthy volunteers. Blood samples will be collected from all participants. For individuals with schizophrenia, blood will be drawn at the beginning of treatment and again after 12 weeks. By comparing patterns of brain-derived miRNAs in the blood of patients versus healthy volunteers, and by observing changes in these miRNAs during treatment, the researchers hope to discover whether these molecules can help diagnose schizophrenia more quickly and predict how well a treatment will work. If successful, this study will provide initial evidence that these miRNAs could become valuable new tools leading to earlier, more accurate diagnoses and more personalized treatment selection.

Aperçu de l'étude

Description détaillée

Schizophrenia is a significant psychiatric illness characterized by psychosis, social withdrawal, and cognitive difficulties leading to impaired daily functioning. Diagnosis and treatment assessment remain heavily reliant on clinical interviews, which are subjective and lack objective biological indicators. Previous research has established evidence of miRNA dysregulation in schizophrenia through genome-wide association studies, post-mortem brain tissue analysis, and biological fluid studies. A more recent and promising approach involves measuring miRNAs specifically contained within neural-derived extracellular vesicles (NDEs) isolated from plasma. These NDEs carry brain-specific miRNA cargo and can be identified in peripheral blood, offering a less invasive approach compared to cerebrospinal fluid or brain tissue.

This study addresses the identified knowledge gap by investigating plasma NDE miRNAs as novel diagnostic and treatment response biomarkers specifically in first-episode schizophrenia (FES). The focus on FES participants minimizes confounding effects associated with long-term medication use and extended illness duration. The study employs a 12-week mechanistic clinical trial design with clinical assessments, neurocognitive testing (MATRICS), and blood collection for NDE miRNA sequencing at baseline and 12 weeks. MiRNA sequencing will be performed using Illumina NovaSeq6000 following NDE isolation via L1/NCAM antibody immunoprecipitation. Statistical analysis includes differential expression analysis using DESeq, Binary Elastic Net Regression for feature selection, and machine learning models (random forests, gradient boosting, SVM) for predictive performance assessment.

Type d'étude

Interventionnel

Inscription (Estimé)

160

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Sauvegarde des contacts de l'étude

Lieux d'étude

    • New York
      • Glen Oaks, New York, États-Unis, 11004
        • Recrutement
        • Zucker Hillside Hospital
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Enfant
  • Adulte

Accepte les volontaires sains

Oui

La description

Inclusion Criteria:

  1. Acute first episode of psychosis with DSM-5 diagnosis of schizophrenia, schizoaffective disorder, schizophreniform disorder, or psychosis Not Otherwise Specified (NOS)
  2. Current positive symptoms rated ≥4 (moderate) on one or more of these BPRS items: hallucinatory behavior, unusual thought content, grandiosity, conceptual disorganization
  3. Early phase of illness as defined by having taken antipsychotic drugs for a cumulative lifetime period ≤2 weeks
  4. Age 15 to 40
  5. Receiving or about to start naturalistic treatment with either aripiprazole or risperidone
  6. Full capacity to consent

Exclusion Criteria:

  • Participant voluntarily withdraws consent at any given time during the study
  • Loss of capacity to consent during the study
  • Treating psychiatrist determines that the participant requires an antipsychotic medication other than aripiprazole or risperidone due to adverse effects, poor tolerability, poor response, or any other reason
  • The investigator, sponsor, independent safety monitor, or DSMB determines discontinuation is necessary to protect the participant
  • Pregnancy is discovered during the study

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Diagnostique
  • Répartition: Non randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: First-Episode Schizophrenia - Aripiprazole/Risperidone
FES participants receiving naturalistic treatment with aripiprazole or risperidone as prescribed by their treating psychiatrist. Blood samples collected at baseline and week 12 for NDE miRNA analysis.
Blood samples collected at baseline and week 12 for isolation of neural-derived extracellular vesicles (NDEs) from plasma using L1/NCAM antibody immunoprecipitation, followed by small RNA sequencing on Illumina NovaSeq6000 to identify differentially expressed miRNAs.
Single baseline blood sample collected for DNA extraction and whole genome sequencing to analyze genetic variation associated with psychosis and treatment response.
Comparateur actif: Healthy volunteers
Healthy volunteers providing a single baseline blood sample for NDE miRNA analysis comparison.
Blood samples collected at baseline and week 12 for isolation of neural-derived extracellular vesicles (NDEs) from plasma using L1/NCAM antibody immunoprecipitation, followed by small RNA sequencing on Illumina NovaSeq6000 to identify differentially expressed miRNAs.
Single baseline blood sample collected for DNA extraction and whole genome sequencing to analyze genetic variation associated with psychosis and treatment response.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Diagnostic performance of plasma NDE miRNA panel
Délai: Baseline (Week 0)
Sensitivity, specificity, and Area Under the Curve (AUC) of a panel of plasma NDE miRNAs in differentiating acutely psychotic First-Episode Schizophrenia (FES) participants from Healthy Volunteers (HV), assessed using Binary Elastic Net Regression and machine learning models.
Baseline (Week 0)
Predictive performance of baseline plasma NDE miRNA levels for treatment response
Délai: Baseline NDE miRNAs predicting response at Week 12
Predictive performance (AUC, accuracy, sensitivity, specificity) of baseline plasma NDE miRNA levels for clinical response to antipsychotic treatment (aripiprazole or risperidone). Treatment response defined as all 4 BPRS Thought Disturbance factor items below psychotic level (<4) for 2 consecutive ratings with concomitant CGI ratings of much/very much improved.
Baseline NDE miRNAs predicting response at Week 12

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Les enquêteurs

  • Chercheur principal: Juan Gallego, MD, Northwell Health

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

1 juillet 2026

Achèvement primaire (Estimé)

1 mai 2031

Achèvement de l'étude (Estimé)

1 mai 2031

Dates d'inscription aux études

Première soumission

4 juin 2026

Première soumission répondant aux critères de contrôle qualité

10 juillet 2026

Première publication (Réel)

14 juillet 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

14 juillet 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

10 juillet 2026

Dernière vérification

1 juillet 2026

Plus d'information

Termes liés à cette étude

Plan pour les données individuelles des participants (IPD)

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Informations sur les médicaments et les dispositifs, documents d'étude

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Étudie un produit d'appareil réglementé par la FDA américaine

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