NCT06820138

Brief Summary

The goal of this study is to develop a new, non-invasive brain stimulation modality called low intensity focused ultrasound (FUS) as a psychiatric rehabilitation treatment for posttraumatic stress disorder (PTSD). FUS delivers energy comparable to that involved in diagnostic ultrasound but in a millimeter-sized envelope. Unlike currently available methods, the maximal FUS energy is delivered at a distance from a transducer on the scalp. Therefore, its promise is that it can deliver focal and reversible modulation to deeper brain regions involved in PTSD. The investigator team has previously conducted first-in-human research in FUS, and this study builds upon that work to conduct a phase II, dose-finding study. This study will pursue two Aims; the first is whether FUS to the amygdala can improve symptoms, and the second will evaluate whether FUS improves function by reduced disability, over a 1-month period. Short and longer-term effects of FUS will be measured and all FUS parameters are within FDA-defined safety thresholds for diagnostic ultrasound.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P50-P75 for phase_2

Timeline
44mo left

Started Aug 2026

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 27, 2025

Completed
15 days until next milestone

First Posted

Study publicly available on registry

February 11, 2025

Completed
1.5 years until next milestone

Study Start

First participant enrolled

August 3, 2026

Expected
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2029

3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 29, 2030

Last Updated

February 2, 2026

Status Verified

January 1, 2026

Enrollment Period

3.4 years

First QC Date

January 27, 2025

Last Update Submit

January 29, 2026

Conditions

Keywords

Low intensity focused ultrasound

Outcome Measures

Primary Outcomes (1)

  • PTSD Checklist for DSM5

    The PTSD Checklist for Diagnostic and Statistical Manual-5 (PCL-5) is a gold standard self reported scale of PTSD symptoms. Scores range from 0-80, where higher scores indicate greater symptom severity. The Week 5 visit value is the primary outcome measure of the study.

    Up to 3 months

Secondary Outcomes (5)

  • Sheehan Disability Scale

    Up to 3 months

  • Social and Occupational Function Scale

    Up to 3 months

  • Inventory of Depressive Symptoms Self Report

    Up to 3 months

  • Clinician Administered PTSD Scale

    Up to 3 months

  • Clinician Global Impression

    Up to 3 months

Other Outcomes (2)

  • Visual Analog Scale

    Three times per week for up to five weeks

  • Arterial Spin Labeling/fMRI

    Five weeks

Study Arms (2)

Verum low intensity focused ultrasound

ACTIVE COMPARATOR

Verum (active) low intensity focused ultrasound, applied up to three times per week.

Device: Brainsonix Ultrasound Device

Sham low intensity focused ultrasound

SHAM COMPARATOR

Sham (inactive) low intensity focused ultrasound, applied up to three times per week.

Device: Brainsonix Ultrasound Device

Interventions

This device delivers low intensity focused ultrasound and delivers either active or sham sonication depending upon the transducer pad used.

Also known as: Brainsonix Pulsar
Sham low intensity focused ultrasoundVerum low intensity focused ultrasound

Eligibility Criteria

Age22 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Veterans ages 22-70 (inclusive) who meet DSM-5 criteria for chronic PTSD using the Clinician Administered PTSD Scale for DSM-5 (CAPS-5) and currently symptomatic. If applicable, Veterans will be required to be on stable psychiatric treatment(s) prior to baseline assessments

You may not qualify if:

  • contraindications to focused ultrasound and/or neuroimaging:
  • i) history of seizure disorder or serious neurologic illness including dementia or serious cognitive impairment,
  • ii) structural or neurologic abnormalities present or in close proximity to sonication site ,
  • iii) prior brain surgery,
  • iv) pacemaker or implanted central nervous system device,
  • v) greater than mild traumatic brain injury, or any head injury within sixty days of ultrasound,
  • vi) greater than moderate alcohol or substance use disorders or active use or withdrawal from alcohol or substances,
  • vii) metal in the head,
  • viii) physical impediment likely to interfere with assessments, or
  • ix) unable to follow protocols.
  • x) Veterans with significant white matter findings or those with findings in the beam of the ultrasound may also be excluded at discretion of study staff.
  • Veterans with acute suicidality are also excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Providence VA Medical Center, Providence, RI

Providence, Rhode Island, 02908-4734, United States

Location

MeSH Terms

Conditions

Stress Disorders, Post-Traumatic

Condition Hierarchy (Ancestors)

Stress Disorders, TraumaticTrauma and Stressor Related DisordersMental Disorders

Study Officials

  • Noah S. Philip, MD

    Providence VA Medical Center, Providence, RI

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Noah S Philip, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Identical active and sham transducer pads are used; these are pads used to couple the ultrasound device to the participant. Sham pads have material that does not permit ultrasound energy to pass through
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Double-blind delivery of low intensity focused ultrasound (i.e., active low intensity focused ultrasound versus a sham (placebo) administration of low intensity focused ultrasound). Sessions are approximately three times a week for four weeks.
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 27, 2025

First Posted

February 11, 2025

Study Start (Estimated)

August 3, 2026

Primary Completion (Estimated)

December 31, 2029

Study Completion (Estimated)

March 29, 2030

Last Updated

February 2, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations