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SERENE Low-Intensity Focused Ultrasound for Cognitive Control

2 novembre 2026 mis à jour par: University of Minnesota

Suicide-related Experience Reduction Via Enhancement of Neuroplasticity

SERENE is an experimental study evaluating low-intensity focused ultrasound neuromodulation of cognitive control circuitry in adults with a lifetime history of suicide attempt or suicidal ideation, but without current suicidality.

Participants will complete screening, cognitive control tasks, MRI/fMRI, ecological momentary assessments, and low-intensity focused ultrasound neuromodulation using the DIADEM system. The study will examine whether low-intensity focused ultrasound (LIFU) neuromodulation changes cognitive control performance measured by the Multi-Source Interference Task (MSIT) and EEG event-related spectral power in the alpha and theta frequency bands.

The study will also examine the time course of LIFU effects and explore whether changes in cognitive control circuitry relate to self-reported experiences, including mood, anxiety, psychosis symptoms, suicidal ideation, and emotion regulation.

Aperçu de l'étude

Statut

Pas encore de recrutement

Les conditions

Intervention / Traitement

Description détaillée

SERENE is an experimental study designed to test a personalized, non-invasive neuromodulation technique to investigate the neural basis of cognitive control.

The study will enroll adults with a lifetime history of suicide attempt or suicidal ideation, but without current suicidal ideation or behavior. Participants will be screened using the Columbia-Suicide Severity Rating Scale to confirm suicide history and exclude current suicidality. Participants will also complete MRI/fMRI-based cognitive control screening to identify cognitive control circuit function.

Participants will complete baseline cognitive and self-report assessments, including computerized cognitive tasks and clinical/self-report measures. Ecological momentary assessments will be completed before and after neuromodulation to assess symptoms and daily-life experiences related to cognitive control, including mood, anxiety, psychosis-related symptoms, suicidal ideation, and emotion regulation.

The study intervention is low-intensity focused ultrasound neuromodulation delivered using the DIADEM system. LIFU will be applied to deep brain regions involved in cognitive control, including subregions of the internal capsule and connected brain regions. During LIFU visits, participants will complete the Multi-Source Interference Task to assess cognitive control. EEG and fMRI may also be collected to evaluate neurocircuitry changes associated with LIFU.

The primary objective is to evaluate the effect of LIFU on cognitive control and associated circuitry. The study will also examine the time course of this effect, whether responses differ by baseline cognitive control circuit function, and whether changes in circuitry relate to self-reported experiences.

Type d'étude

Interventionnel

Inscription (Estimé)

100

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

  • Nom: Michael V Bronstein, PhD
  • Numéro de téléphone: 781-492-5644
  • E-mail: brons139@umn.edu

Lieux d'étude

    • Minnesota
      • Minneapolis, Minnesota, États-Unis, 55455
        • Masonic Institute for the Developing Brain
        • Contact:
          • Michael V Bronstein, PhD
          • Numéro de téléphone: 781-492-5644
          • E-mail: brons139@umn.edu

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

18 ans à 65 ans (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • Lifetime history of suicide attempt or suicidal ideation, as determined by the Columbia-Suicide Severity Rating Scale
  • Score in specified ranges on measures of cognitive control behavior and/or cognitive control circuit function
  • No current suicide ideation or behavior within the past 3 months, as determined by the Columbia-Suicide Severity Rating Scale
  • Age 18 to 65 years
  • Speaks and understands English
  • Primary user of a smartphone

Exclusion Criteria:

  • Under age 18
  • Neurological disorder that may affect fMRI scan results or cause reaction to LIFU to differ from healthy adults
  • Regular use of psychoactive medication, except PRN use if the participant is willing and able to abstain during the study period
  • Psychiatric hospitalization within the past 3 months
  • Contraindication to fMRI scanning, including claustrophobia, unremovable piercings, pregnancy, medical devices such as pacemakers, or a movement or sleep disorder
  • Pregnant or may have reason to believe they are pregnant
  • Diagnosis of certain psychiatric conditions, such as schizophrenia, bipolar disorder, or a developmental disorder other than ADHD
  • Any other neurological, autoimmune, or medical disorder that may inhibit participation
  • Children
  • Pregnant women/persons
  • Fetuses
  • Neonates
  • Prisoners
  • Adults lacking capacity to consent or adults with diminished or fluctuating capacity to consent
  • Non-English speakers
  • Individuals unable to read
  • Employees of the researcher
  • Students of the researcher
  • Individuals approached during a stressful situation, such as an emergency room setting or childbirth
  • Individuals with fear of negative consequences for not participating
  • Any other circumstance that could increase vulnerability to coercion or exploitation

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: Science basique
  • Répartition: N / A
  • Modèle interventionnel: Affectation à un seul groupe
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: DIADEM LIFU Neuromodulation

Participants will receive low-intensity focused ultrasound neuromodulation using the DIADEM device while completing cognitive control tasks. Stimulation may be applied to subregions of the internal capsule and connected brain regions to identify targets that modulate cognitive control performance or circuitry.

Low-intensity focused ultrasound neuromodulation will be delivered using the SPIRE DIADEM device. LIFU will be applied to subregions of deep brain circuitry involved in cognitive control, including regions within the dorsal or ventral internal capsule, surrounding striatal nuclei, and/or connected brain areas. Stimulation will be delivered by trained study staff according to device safety and screening procedures.

Autres noms:
  • SPIRE DIADEM System
  • LIFU Neuromodulation

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Mean Reaction Time During the Multi-Source Interference Task Following LIFU at Different Internal Capsule Sites
Délai: Baseline and during MSIT task blocks corresponding to each internal capsule LIFU sonication site

Cognitive control performance will be assessed using the Multi-Source Interference Task (MSIT), a computerized cognitive control task. Reaction time will be measured in milliseconds. The MSIT will be administered in blocks, with one block corresponding to each internal capsule sonication site. Mean reaction time will be calculated separately for each block and compared with baseline MSIT mean reaction time. Lower reaction times indicate faster task performance.

Baseline and during MSIT task blocks corresponding to each internal capsule LIFU sonication site
Event-Related EEG Alpha-Band Spectral Power Following LIFU
Délai: During post-LIFU MSIT assessment at each internal capsule sonication site

EEG alpha-band activity will be assessed using event-related spectral power during the Multi-Source Interference Task (MSIT) following LIFU. Spectral power will be baseline-normalized using a pre-stimulus reference interval from -500 to -100 milliseconds relative to the target event. Baseline normalization will be performed in the linear power domain, with results expressed in decibels (dB).

During post-LIFU MSIT assessment at each internal capsule sonication site
Event-Related EEG Theta-Band Spectral Power Following LIFU
Délai: During post-LIFU MSIT assessment at each internal capsule sonication site

EEG theta-band activity will be assessed using event-related spectral power during the Multi-Source Interference Task (MSIT) following LIFU. Spectral power will be baseline-normalized using a pre-stimulus reference interval from -500 to -100 milliseconds relative to the target event. Baseline normalization will be performed in the linear power domain, with results expressed in decibels (dB).

During post-LIFU MSIT assessment at each internal capsule sonication site
Time Course of Mean Reaction Time During the Multi-Source Interference Task Following LIFU
Délai: During repeated MSIT assessments across LIFU sonication sessions and through post-treatment follow-up within 2 weeks

The time course of LIFU effects on cognitive control will be evaluated using repeated mean reaction time measurements obtained during the Multi-Source Interference Task (MSIT). Reaction time will be measured in milliseconds and summarized for each assessment block. Mean reaction time will be compared across the repeated assessments to evaluate changes in cognitive control performance over time. Lower values indicate faster task performance.

During repeated MSIT assessments across LIFU sonication sessions and through post-treatment follow-up within 2 weeks

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Change in MSIT Mean Reaction Time From Baseline Following LIFU at Different Internal Capsule Sites
Délai: Baseline and during MSIT task blocks corresponding to each internal capsule LIFU sonication site

Differential response to LIFU across internal capsule stimulation sites will be assessed using mean reaction time during the Multi-Source Interference Task (MSIT), measured in milliseconds. Mean reaction time will be calculated separately for the MSIT block corresponding to each sonication site. Change will be calculated as the mean reaction time following sonication at each site minus the baseline mean reaction time. Negative change values indicate faster responses relative to baseline. Changes will be compared across sonication sites.

Baseline and during MSIT task blocks corresponding to each internal capsule LIFU sonication site
Change in Momentary Active Suicidal Ideation Rating Measured by Ecological Momentary Assessment
Délai: Twice daily for 3 days before and 3 days after LIFU

Momentary active suicidal ideation will be assessed using a study-adapted ecological momentary assessment (EMA) item delivered through participants' smartphones. Responses are rated on a 5-point Likert scale from 1 to 5.

Twice daily for 3 days before and 3 days after LIFU
Change in Momentary Passive Suicidal Ideation Rating Measured by Ecological Momentary Assessment
Délai: Twice daily for 3 days before and 3 days after LIFU

Momentary passive suicidal ideation will be assessed using a study-adapted ecological momentary assessment (EMA) item delivered through participants' smartphones. Responses are rated on a 5-point Likert scale from 1 to 5.

Twice daily for 3 days before and 3 days after LIFU
Change in Momentary Depression Rating Measured by Ecological Momentary Assessment
Délai: Twice daily for 3 days before and 3 days after LIFU

Momentary depressive symptoms will be assessed using a study-adapted ecological momentary assessment (EMA) item delivered through participants' smartphones. Responses are rated on a 5-point Likert scale from 1 to 5.

Twice daily for 3 days before and 3 days after LIFU
Change in Momentary Rumination Rating Measured by Ecological Momentary Assessment
Délai: Twice daily for 3 days before and 3 days after LIFU

Momentary rumination will be assessed using a study-adapted ecological momentary assessment (EMA) item delivered through participants' smartphones. Responses are rated on a 5-point Likert scale from 1 to 5.

Twice daily for 3 days before and 3 days after LIFU
Change in Momentary Physical Pain Rating Measured by Ecological Momentary Assessment
Délai: Twice daily for 3 days before and 3 days after LIFU

Momentary physical pain will be assessed using a study-adapted ecological momentary assessment (EMA) item delivered through participants' smartphones. Responses are rated on a 5-point Likert scale from 1 to 5.

Twice daily for 3 days before and 3 days after LIFU
Change in Momentary Co-dampening Rating Measured by Ecological Momentary Assessment
Délai: Twice daily for 3 days before and 3 days after LIFU

Momentary co-dampening will be assessed using a study-adapted ecological momentary assessment (EMA) item delivered through participants' smartphones. Responses are rated on a 5-point Likert scale from 1 to 5.

Twice daily for 3 days before and 3 days after LIFU
Change in Momentary Hallucination Rating Measured by Ecological Momentary Assessment
Délai: Twice daily for 3 days before and 3 days after LIFU

Momentary experiences of hallucinations will be assessed using a study-adapted ecological momentary assessment (EMA) item delivered through participants' smartphones. Responses are rated on a 5-point Likert scale from 1 to 5.

Twice daily for 3 days before and 3 days after LIFU
Change in Momentary Persecutory Experience Rating Measured by Ecological Momentary Assessment
Délai: Twice daily for 3 days before and 3 days after LIFU

Momentary persecutory experiences will be assessed using a study-adapted ecological momentary assessment (EMA) item delivered through participants' smartphones. Responses are rated on a 5-point Likert scale from 1 to 5.

Twice daily for 3 days before and 3 days after LIFU

Collaborateurs et enquêteurs

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

Parrainer

Les enquêteurs

  • Chercheur principal: Michael V Bronstein, PhD, University of Minnesota
  • Directeur d'études: Alik S Widge, MD,PhD, University of Minnesota

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 janvier 2027

Achèvement primaire (Estimé)

20 septembre 2028

Achèvement de l'étude (Estimé)

20 septembre 2028

Dates d'inscription aux études

Première soumission

13 octobre 2026

Première soumission répondant aux critères de contrôle qualité

2 novembre 2026

Première publication (Réel)

6 novembre 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

6 novembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

2 novembre 2026

Dernière vérification

1 novembre 2026

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • STUDY00028755

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

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Oui

produit fabriqué et exporté des États-Unis.

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .