Targeting Fronto-Striatal Neural Circuitry Using Repetitive Transcranial Magnetic Stimulation to Reduce Irritability
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Aim 1: To establish frontostriatal (dACC, dlPFC, striatum) circuitry as the neural circuitry mediating frustration.
Aim 2: To modulate the neural circuitry of frustration and evaluate the neural, behavioral, and affective responses.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Connecticut
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Hartford, Connecticut, Forenede Stater, 06102
- Hartford Healthcare
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- able to give informed consent in English
- elevated levels of irritability, defined as scoring ≥5 on the Affective Reactivity Index (ARI)
- Absence of cognitive impairment. Must have an IQ equivalent of ≥ 70 on the WASI
- Absence of MRI or TMS contraindications
Exclusion Criteria:
- History of any neurological disorder that would increase seizure risk from rTMS such as stroke, brain lesions, previous neurosurgery, any history of seizure or fainting episode of unknown cause, or head trauma resulting in loss of consciousness, lasting over 30 minutes or with sequela lasting longer than one month.
- First-degree family history of any neurological disorder with a potentially hereditary basis, including epilepsy or multiple sclerosis.
- Cardiac pacemakers, neural stimulators, implantable defibrillator, implanted medication pumps or sensors, intracardiac lines, or acute, unstable cardiac disease, with intracranial implants (e.g. aneurysm clips, shunts, stimulators, cochlear implants, or electrodes) or any other metal object in the body that precludes rTMS or MRI administration.
- Current use of any investigational drug or of anti or pro-convulsive action.
- Use of benzodiazepines.
- Lifetime history of schizophrenia, bipolar disorder, mania, autism spectrum disorder, intellectual disability, hypomania, or post-traumatic stress disorder.
- History of myocardial infarction, angina, congestive heart failure, cardiomyopathy, stroke or transient ischemic attack.
- Participation in any TMS session less than 2 weeks prior to admission. (No TMS exposure for treatment purposes in the last 6 months.)
- History or current substance use disorder, excluding cannabis use disorder.
- Major medical illnesses.
- An acute risk of hurting themselves or others.
- Pregnant or lactating women.
- Participant-reported history of severe claustrophobia.
- Excessive weight beyond the MRI limit (> 450 lbs)
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Eksperimentel: rTMS participants
Participants will be asked to complete a 3-day within-participant active and sham rTMS crossover study and perform tasks pre and post sessions while fMRI data is collected.
Each will receive an active and sham rTMS.
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Transcranial magnetic stimulation (TMS) is a noninvasive form of brain stimulation in which a changing magnetic field is used to cause electric current at a specific area of the brain through electromagnetic induction.
To administer TMS, a stimulator equipped with a figure-8 coil will be used.
Two separate coils will be used that are similar in appearance and acoustic properties.
One active, unblinded, coil will be used to determine resting motor threshold (RMT) and deliver pulses for the recruitment curves; the other coil will be used to deliver rTMS.
rTMS stimulation will be targeted to l-dlPFC.
fMRI will be performed pre- and post rTMS
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Frontostriatal connectivity
Tidsramme: Day 1-3
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Frontostriatal connectivity easured using fMRI during a frustration task.
The unit of measure is degrees of functional connectivity.
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Day 1-3
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Grip force (an index of motor activity)
Tidsramme: Day 1-3
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Grip force measured using a dynamometer during a frustration task.
The unit of measure is pounds of force.
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Day 1-3
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Self-reported frustration and unhappiness
Tidsramme: Day 1-3
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Self-reported frustration and unhappiness measured using self-rated Likert scales from 1 to 9 during a frustration task.
Total score range 1-9 with higher scores indicating more frustration and unhappiness.
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Day 1-3
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Vaughn R Steele, PhD, Yale University
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- HHC-2024-0180
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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