Investigation of Low-intensity Focused Ultrasound Parameters

NCT ID: NCT05134233

Last Updated: 2025-01-23

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

23 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-01-14

Study Completion Date

2024-03-11

Brief Summary

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This project examines the effects of different brain stimulation settings on muscle contractions. The investigators believe this study will help to better understand noninvasive brain stimulation techniques that may have the potential to aid in addiction, pain, and mental health issues. Participants undergo structural imaging, an fMRI and CT. These images are used to align the low-intensity focused ultrasound (LIFU) and transcranial magnetic stimulation (TMS) devices to temporarily change brain activity. Electromyography (EMG) will be used to record muscle contractions on the hand.

Detailed Description

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Conditions

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Development of LIFU for Clinical Purposes

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Multi-visit study, testing various LIFU parameters per session
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Parameter Trials

Approximately 36 parameter combinations will be tested per study session, expected 6 sessions of trials. Response recorded using TMS and EMG.

Group Type EXPERIMENTAL

Low-intensity Focused Ultrasound

Intervention Type DEVICE

LIFU application using various parameters, responses of neuromodulation recorded using TMS and EMG.

Interventions

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Low-intensity Focused Ultrasound

LIFU application using various parameters, responses of neuromodulation recorded using TMS and EMG.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Above criteria and must understand and speak English.

Exclusion Criteria

* Contraindications to MRI, CT, or TMS

1. Claustrophobia
2. Pacemaker, aneurysm clips, neurostimulators, cochlear implants, metal in eyes, steel worker, or other implants.
3. Pregnancy
4. Active medical disorder or treatment with potential CNS effects
5. History of neurologic disorder
6. History of head injury resulting in loss of consciousness for \>10 minutes
7. History of alcohol or drug dependence
8. Failure to provide a social security number or tax ID number. This is required for tax purposes or payment cannot be processed.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Virginia Polytechnic Institute and State University

OTHER

Sponsor Role lead

Responsible Party

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Wynn Legon

Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Fralin Biomedical Research Institute

Roanoke, Virginia, United States

Site Status

Countries

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United States

References

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Legon W, Bansal P, Tyshynsky R, Ai L, Mueller JK. Transcranial focused ultrasound neuromodulation of the human primary motor cortex. Sci Rep. 2018 Jul 3;8(1):10007. doi: 10.1038/s41598-018-28320-1.

Reference Type BACKGROUND
PMID: 29968768 (View on PubMed)

Fomenko A, Chen KS, Nankoo JF, Saravanamuttu J, Wang Y, El-Baba M, Xia X, Seerala SS, Hynynen K, Lozano AM, Chen R. Systematic examination of low-intensity ultrasound parameters on human motor cortex excitability and behavior. Elife. 2020 Nov 25;9:e54497. doi: 10.7554/eLife.54497.

Reference Type BACKGROUND
PMID: 33236981 (View on PubMed)

Xia X, Fomenko A, Nankoo JF, Zeng K, Wang Y, Zhang J, Lozano AM, Chen R. Time course of the effects of low-intensity transcranial ultrasound on the excitability of ipsilateral and contralateral human primary motor cortex. Neuroimage. 2021 Nov;243:118557. doi: 10.1016/j.neuroimage.2021.118557. Epub 2021 Sep 4.

Reference Type BACKGROUND
PMID: 34487826 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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21-882

Identifier Type: -

Identifier Source: org_study_id

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