Targeting Fronto-Striatal Neural Circuitry Using Repetitive Transcranial Magnetic Stimulation to Reduce Irritability
Studieoversikt
Status
Status
Forhold
Forhold
Intervensjon / Behandling
Intervensjon / Behandling
Detaljert 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.
Studietype
Studietype
Registrering (Faktiske)
Registrering
Fase
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
-
-
Connecticut
-
Hartford, Connecticut, Forente stater, 06102
- Hartford Healthcare
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
Tar imot friske 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 studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: N/A
- Intervensjonsmodell: Enkeltgruppeoppdrag
- Masking: Ingen (Open Label)
Antall våpen
Våpen og intervensjoner
Deltakergruppe / ArmDeltakergruppe / Arm |
Intervensjon / BehandlingIntervensjon / Behandling |
|---|---|
|
Eksperimentell: 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.
|
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
|
Hva måler studien?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Frontostriatal connectivity
Tidsramme: Day 1-3
|
Frontostriatal connectivity easured using fMRI during a frustration task.
The unit of measure is degrees of functional connectivity.
|
Day 1-3
|
|
Grip force (an index of motor activity)
Tidsramme: Day 1-3
|
Grip force measured using a dynamometer during a frustration task.
The unit of measure is pounds of force.
|
Day 1-3
|
|
Self-reported frustration and unhappiness
Tidsramme: Day 1-3
|
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.
|
Day 1-3
|
Samarbeidspartnere og etterforskere
Sponsor
Sponsor
Samarbeidspartnere
Samarbeidspartnere
Etterforskere
Etterforskere
- Hovedetterforsker: Vaughn R Steele, PhD, Yale University
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Studiestart
Primær fullføring (Antatt)
Primær fullføring
Studiet fullført (Antatt)
Studiet fullført
Datoer for studieregistrering
Først innsendt
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Først lagt ut
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Sist oppdatering lagt ut
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
Andre studie-ID-numre
- HHC-2024-0180
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Studerer et amerikansk FDA-regulert enhetsprodukt
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .