- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT07752745
Mechanistic Validation of Human Multipolar TES-TI: Amplitude Modulation, Frequency, and Benchmarking (MINT)
Přehled studie
Postavení
Podmínky
Intervence / Léčba
Detailní popis
This is an experimental study using a within-subject, single-blind, randomized, counterbalanced crossover design in which each participant serves as their own control. Healthy adults will complete (or provide an existing) structural MRI scan (T1/T2) to support individualized electric-field modeling and personalized montage optimization for thalamic targeting, followed by three afternoon stimulation sessions with simultaneous high-density EEG during eyes-closed wakefulness; sessions will be scheduled on separate days at least one week apart. Each session includes four stimulation conditions administered in randomized/counterbalanced order, with each condition consisting of a fixed 3-minute pre-stimulation baseline, 3-minute stimulation period, and 3-minute post-stimulation recording to enable STIM-PRE and POST-PRE comparisons.
- Session A tests amplitude-modulation specificity (in-phase mTI, a mixed unipolar+HF condition with the same montage/current, a carrier-only HF control, and sham)
- Session B benchmarks in-phase mTI against unipolar TES-TI at 5 mA and 8 mA (plus sham); and
- Session C characterizes frequency dependence of in-phase mTI (10, 50, 130 Hz; plus sham).
Primary Objectives:
- Determine whether active multipolar TES-TI (mTI) produces envelope-driven EEG effects (primary contrast: STIM-PRE) by comparing in-phase mTI to SHAM, to a carrier-only no-envelope high-frequency (HF) control, and to a mixed unipolar+HF condition (same montage/current; one pair as unipolar TES-TI producing an AM envelope, the other pair as a non-interacting HF carrier with no envelope contribution).
- Benchmark mTI against unipolar TES-TI across stimulation intensity by comparing in-phase mTI to unipolar TES-TI at 5 mA and 8 mA, each evaluated relative to SHAM (primary contrast: STIM-PRE), and estimating effect sizes to inform future study design.
Characterize envelope-frequency dependence of in-phase mTI effects by comparing EEG spectral power changes across 10, 50, and 130 Hz conditions (each relative to SHAM; primary contrast: STIM-PRE).
Secondary Objectives:
- Assess persistence of stimulation-related EEG changes by quantifying post-stimulation effects (POST-PRE) across conditions (in-phase, mixed unipolar+HF, HF, unipolar) and sessions
Typ studie
Zápis (Odhadovaný)
Fáze
- Nelze použít
Kontakty a umístění
Studijní kontakt
- Jméno: MINT Study Team
- Telefonní číslo: 608-263-4313
- E-mail: mint@psychiatry.wisc.edu
Studijní místa
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Wisconsin
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Madison, Wisconsin, Spojené státy, 53706
- University of Wisconsin - Madison
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Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dospělý
Přijímá zdravé dobrovolníky
Popis
Inclusion Criteria:
- Medically healthy (based on self-report and study team review)
- U.S. citizen or holding permanent resident status
- English-speaking (able to provide consent and complete questionnaires)
Exclusion Criteria:
- Current or past history of clinically significant neurological disorder or acquired neurological disease (e.g., stroke, traumatic brain injury), including intracranial lesions (including clinically significant findings identified on the structural MRI)
- History of inpatient psychiatric hospitalization
- History of head trauma resulting in prolonged loss of consciousness; or a history of >3 grade I concussions
- Current poorly controlled headaches, including intractable or frequent migraines
- Any systemic illness or unstable medical condition that may cause a medical emergency in case of a provoked seizure (cardiac malformation, cardiac dysrhythmia, asthma, etc.)
- History of seizures, diagnosis of epilepsy, history of abnormal (epileptiform) EEG, or family history of treatment resistant epilepsy except for a single seizure of benign etiology (e.g. febrile seizures) in the judgment of a board-certified neurologist
- Possible pregnancy or plan to become pregnant in the next 6 months (self reported)
- Any metal in the head or body
- Any medical devices or implants (i.e. cardiac pacemaker, medication infusion pump, cochlear implant, vagal nerve stimulator)
- Dental implants
- Permanent retainers
- Any hair braid, dreadlocks, hair pieces, or extensions which cannot be taken out before the study sessions
- Any head coverings or headdress that participant feels uncomfortable removing for the purposes of study sessions
- Current use of medications known to substantially lower seizure threshold, specifically chlorpromazine, clozapine, bupropion, clomipramine, or maprotiline; or other medications at doses known to substantially lower seizure threshold in the judgment of the PI
- Active scalp lesions, broken skin, or skin conditions at planned electrode sites that would preclude safe electrode application
- Claustrophobia (a fear of small or closed places)
- Back problems that would prevent lying flat for up to two hours
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Základní věda
- Přidělení: Randomizované
- Intervenční model: Crossover Assignment
- Maskování: Singl
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
|---|---|
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Experimentální: Session A: Amplitude Modulation Specificity
hdEEG setup; eyes-closed wakefulness 4 conditions in randomized order:
Adverse events assessment |
4 conditions per session.
Each condition will follow a standardized block structure consisting of 3 minutes pre-stimulation baseline, 3 minutes stimulation, and 3 minutes post-stimulation recording (PRE, STIM, POST)
Ostatní jména:
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Experimentální: Session B: Benchmarking
hdEEG setup; eyes-closed wakefulness 4 conditions in randomized order:
Adverse events assessment |
4 conditions per session.
Each condition will follow a standardized block structure consisting of 3 minutes pre-stimulation baseline, 3 minutes stimulation, and 3 minutes post-stimulation recording (PRE, STIM, POST)
Ostatní jména:
|
|
Experimentální: Session C: Frequency Dependence
hdEEG setup; eyes-closed wakefulness 4 conditions in randomized order:
Adverse events assessment |
4 conditions per session.
Each condition will follow a standardized block structure consisting of 3 minutes pre-stimulation baseline, 3 minutes stimulation, and 3 minutes post-stimulation recording (PRE, STIM, POST)
Ostatní jména:
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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
Change in band-limited, topography-resolved EEG spectral power during stimulation for conditions in Session A
Časové okno: data collected for 3 minutes prior to stimulation and 3 minutes during stimulation for each of 4 conditions during Session A (approximately 3 hours long)
|
Change in band-limited, topography-resolved EEG spectral power during stimulation (STIM-PRE) for in-phase mTI compared to SHAM, HF control, and the mixed unipolar+HF condition.
|
data collected for 3 minutes prior to stimulation and 3 minutes during stimulation for each of 4 conditions during Session A (approximately 3 hours long)
|
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Change in band-limited, topography-resolved EEG spectral power during stimulation for conditions in Session B
Časové okno: data collected for 3 minutes prior to stimulation and 3 minutes during stimulation for each of 4 conditions during Session B (approximately 3 hours long)
|
Change in band-limited, topography-resolved EEG spectral power during stimulation (STIM-PRE) for in-phase mTI compared to unipolar TES-TI at 5 mA, and 8 mA, relative to SHAM.
|
data collected for 3 minutes prior to stimulation and 3 minutes during stimulation for each of 4 conditions during Session B (approximately 3 hours long)
|
|
Change in band-limited, topography-resolved EEG spectral power during stimulation for conditions in Session C
Časové okno: data collected for 3 minutes prior to stimulation and 3 minutes during stimulation for each of 4 conditions during Session C (approximately 3 hours long)
|
Change in band-limited, topography-resolved EEG spectral power during stimulation (STIM-PRE) for in-phase mTI at 10 Hz, 50 Hz, and 130 Hz, relative to SHAM.
|
data collected for 3 minutes prior to stimulation and 3 minutes during stimulation for each of 4 conditions during Session C (approximately 3 hours long)
|
Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
Change in band-limited, topography-resolved EEG spectral power in the post-stimulation interval (POST-PRE) across all tested conditions
Časové okno: data collected for 3 minutes prior to stimulation and 3 minutes post stimulation for each of 4 conditions during each of 3 sessions (each session is approximately 3 hours long, with at least one week between sessions)
|
Change in band-limited, topography-resolved EEG spectral power in the post-stimulation interval (POST-PRE) across all tested conditions (in-phase mTI, mixed unipolar+HF, HF control, unipolar 5 mA, unipolar 8 mA; and 10/50/130 Hz where applicable), each evaluated relative to SHAM.
|
data collected for 3 minutes prior to stimulation and 3 minutes post stimulation for each of 4 conditions during each of 3 sessions (each session is approximately 3 hours long, with at least one week between sessions)
|
Spolupracovníci a vyšetřovatelé
Sponzor
Vyšetřovatelé
- Vrchní vyšetřovatel: Larissa Albantakis, PhD, UW School of Medicine and Public Health
Publikace a užitečné odkazy
Užitečné odkazy
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Odhadovaný)
Primární dokončení (Odhadovaný)
Dokončení studie (Odhadovaný)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Další relevantní podmínky MeSH
Další identifikační čísla studie
- 2026-1006
- Protocol Version (Jiný identifikátor: UW Madison)
- SMPH | Psychiatry (Jiný identifikátor: UW Madison)
- R&D funding (Jiné číslo grantu/financování: UW Madison Dept. of Psychiatry)
Plán pro data jednotlivých účastníků (IPD)
Plánujete sdílet data jednotlivých účastníků (IPD)?
Popis plánu IPD
Časový rámec sdílení IPD
Typ podpůrných informací pro sdílení IPD
- PROTOKOL STUDY
- MÍZA
Informace o lécích a zařízeních, studijní dokumenty
Studuje lékový produkt regulovaný americkým FDA
Studuje produkt zařízení regulovaný americkým úřadem FDA
produkt vyrobený a vyvážený z USA
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