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Sound waves to soothe anxiety? new trial tests ultrasound on the brain

NCT ID NCT04557891

Symptom relief Sponsor: University of California, Los Angeles Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests a new, non-invasive treatment for people with generalized anxiety disorder who haven't gotten better with standard medications. The treatment uses low-intensity focused ultrasound to gently stimulate a deep brain area linked to anxiety, called the amygdala. 48 adults will receive either the real treatment or a sham (fake) version to see if it safely reduces anxiety symptoms.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 48 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jul 2021

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Male or female 2. Age 18-65 3. Normal or corrected-to normal vision and hearing 4. Primary diagnosis of generalized anxiety disorder, moderate/severe per DSM-5. (HAM-A\>17) 4a) The duration of the illness must exceed one year. 5. Must be medically stable as determined by investigator 6. Patient must have attempted and failed treatment with at least 2 SSRI and 1 augmentation 7. History of rTMS is permitted, but not required. Exclusion Criteria: 1. Diagnosis of primary DSM-5 anxiety disorder other than GAD 1a) Affective disorders such as unipolar or bipolar depression are permitted as long as GAD is primary 2. Current use of any non-prescribed psychoactive medications or drugs (aside from medications for treatment of GAD) 3. Contraindication to enter the MRI environment 4. Pregnancy (or suspected/possible pregnancy or plan to become pregnant in the short-term) 5. Inability to adhere to treatment schedule 6. Initiation of new anxiolytic treatment at the time of study randomization

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Conditions

The condition(s) this trial relates to.

generalized anxiety disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Generalized anxiety disorder

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    3 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Massachusetts General Hospital

    RECRUITING

    Boston, Massachusetts, 02129, United States

  • Medical University of South Carolina

    RECRUITING

    Charleston, South Carolina, 29425, United States

  • University of California, Los Angeles

    RECRUITING

    Los Angeles, California, 90095, United States

More trials for these conditions

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