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Recruiting NCT06426498

tFUS Induced Transient Scotoma for Individual Dosing

No phase Interventional Healthy

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Brainsonix Bx Pulsar machine tFUS.
Who it may be relevant to
Registry conditions: Healthy. Basic parameters: 18 years — 70 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
United States
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Developing a Method of Adjusting the Strength of Transcranial Focused Ultrasound (tFUS) to Personalize Treatment.

Overview

The purposes of this research study is to: 1. Develop a technique of transcranial Focused Ultrasound Stimulation (tFUS) where meaningful effects on the brain can be easily measured. 2. Use this technique to measure threshold for effective tFUS in individuals. 3. Determine whether disruption of conscious visual detection, versus non-conscious visually-guided behavior have different thresholds for disruption with tFUS.

Detailed description

Transcranial focused ultrasound (tFUS) is a new noninvasive way to stimulate the brain in an awake and alert person. Investigators do not yet have an easily observable way to know whether they are in the right brain location with the correct dose for that person. Investigators wonder if they can produce a transient change in someone's visual field, called a scotoma, and whether they can use that to determine the minimum tFUS dose for that person.

Interventions

  • Device Brainsonix Bx Pulsar machine tFUS
    This is a tFUS device, delivering ultrasound at a dose within the FDA safety guidelines.

Primary outcome measures

  • Temporary Scotoma [Time frame: During and immediately after (10 minutes) the tFUS]

Eligibility criteria

Inclusion criteria

  • Male or female
  • Age 18-70
  • Normal or corrected-to normal vision and hearing
  • No neurological or psychological illness

Exclusion criteria

  • Diagnosis of any depressive or anxiety disorder
  • Diagnosis of schizophrenia or bipolar disorder
  • Current use of any non-prescribed psychoactive medications or drugs
  • Contraindication to enter the MRI environment.
  • Pregnancy (or suspected/possible pregnancy or plan to become pregnant in the short term).
  • Urine Pregnancy Test: If the subject is a woman of childbearing potential and /or a man capable of fathering a child before, during, and/or after participation precaution should be taken. Examples of acceptable methods of birth control for participants involved in the study include: birth control pills, patch, IUD, condom, sponge, diaphragm with spermicide, or avoiding sexual activity that could cause the subject to become pregnant.
  • Inability to adhere to treatment schedule.
  • Initiation of new antidepressant treatment at the time of study randomization.

NOTE: There will be no exclusion based upon gender or minority status. We anticipate that at least 50% of the participants will be women. The percentage of minority participants is expected to be at least 5%. We will make vigorous attempts to increase this number by posting advertisement flyers in minority communities.

Children, prisoners, and institutionalized individuals will not be recruited, because they are beyond the scope of the objectives. Moreover, we will emphasize that participation in this study is completely voluntary. Recruitment of women and minorities has been addressed above. Non-English speaking subjects will not be recruited because they may not be able to understand instructions, which could undermine the validity of the results.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Allocation
N/A
Model
Single group
Masking
Open label
Primary purpose
Basic science

Study locations

United States · 1 center
  • Medical University of South Carolina Brain Stimulation Division — Charleston

Identifiers

NCT: NCT06426498 · Pro00132894

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗