NCT02685488

Brief Summary

Depression is the leading cause of disability worldwide. Because a significant number of people with depression do not respond to medication or therapy, alternative treatment options are greatly needed. Recent research has focused on brain stimulation methods due to their therapeutic utility for treating depression. Yet, current brain stimulation methods have drawbacks, including invasive surgery and limited precision in targeting specific areas. A novel brain stimulation method, transcranial ultrasound (TUS), is noninvasive, has greater spatial precision than most existing methods, and is proven safe for humans. TUS has been found to increase positive mood in chronic pain patients. In a double blind study, TUS increased positive mood in over 140 healthy undergraduates at the University of Arizona. Despite evidence that TUS can increase positive mood in humans, it has yet to be investigated whether TUS can increase positive mood in humans who are experiencing chronic low mood or depression. The present study will, for the first time, examine whether TUS can improve depressive symptoms. Twenty to thirty participants with mild to moderate depressive symptoms (Beck Depression Inventory Score between 10 and 25) will be randomly assigned to a TUS sham or TUS activation condition. In the TUS activation condition, TUS will be used to stimulate the right fronto-temporal area, which has previously been shown to increase positive mood. Participants in the TUS sham condition will not receive any brain stimulation. Participants will attend five sessions within seven days or ten sessions within fourteen days. At each session, in addition to brain stimulation, self-reported mood and depressive symptoms will be recorded. Furthermore, the investigators will use electroencephalogram (EEG) to record changes in brain electrical signals during TUS stimulation. Based on prior research, the investigators predict that mood will increase and depressive symptoms will decrease with TUS stimulation.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
26

participants targeted

Target at below P25 for not_applicable depression

Timeline
Completed

Started Oct 2015

Shorter than P25 for not_applicable depression

Status
completed

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

Study Start

First participant enrolled

October 1, 2015

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

February 14, 2016

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 18, 2016

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2016

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2016

Completed
1.7 years until next milestone

Results Posted

Study results publicly available

January 8, 2018

Completed
Last Updated

January 8, 2018

Status Verified

January 1, 2018

Enrollment Period

6 months

First QC Date

February 14, 2016

Results QC Date

October 30, 2017

Last Update Submit

January 5, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • Depressive Symptoms Assessed With the Beck Depression Inventory-II

    The Beck Depression Inventory-II (BDI-II) is one of the most widely used self-report measures for assessing depression. It includes 21 self-report items. Scores range from 0 to 63, and higher scores indicate higher levels of depressive symptoms. In this study, the BDI-II was used to monitor depressive symptoms each day. The outcome is the change in BDI-II score as measured by BDI-II on Day 5 minus BDI-II on Day 1.

    Once on day 1 & day 5

Secondary Outcomes (3)

  • Rumination Symptoms Assessed With the Ruminative Responses Scale

    Once on day 1 & 5

  • Worry Symptoms Assessed With the Penn State Worry Questionnaire

    Once on day 1 & day 5

  • Anxiety Symptoms Assessed With the Overall Anxiety Severity and Impairment Scale

    Once on day 1 & day 5

Study Arms (2)

Transcranial Ultrasound Power

ACTIVE COMPARATOR

Transcranial Ultrasound Power

Device: Transcranial Ultrasound Power

Transcranial Ultrasound Sham

SHAM COMPARATOR

Transcranial Ultrasound Sham. Unknown to both participants and experimenters, the ultrasound will not stimulate.

Device: Transcranial Ultrasound Sham

Interventions

Transcranial ultrasound will be to stimulate at the right fronto-temporal cortex. 30 seconds of stimulation at 500 kHZ with duty cycle 0.24% and pulse rate frequency at 40 Hz.

Transcranial Ultrasound Power

Transcranial ultrasound will be used without power for a "sham" condition.

Transcranial Ultrasound Sham

Eligibility Criteria

Age18 Years - 35 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Beck Depression Inventory score between 10 and 25

You may not qualify if:

  • left-handedness
  • prior serious head-related injury
  • any medical condition that would impact EEG profiles
  • chronic migraines or other severe headaches
  • pregnancy
  • lack of proficiency in English
  • lack of secure housing
  • current confounding treatment (including any psychotropic medication or psychotherapy)
  • current active suicidal potential necessitating immediate treatment, as such participants will be referred for immediate treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (6)

  • Hameroff S, Trakas M, Duffield C, Annabi E, Gerace MB, Boyle P, Lucas A, Amos Q, Buadu A, Badal JJ. Transcranial ultrasound (TUS) effects on mental states: a pilot study. Brain Stimul. 2013 May;6(3):409-15. doi: 10.1016/j.brs.2012.05.002. Epub 2012 May 29.

    PMID: 22664271BACKGROUND
  • Tufail Y, Yoshihiro A, Pati S, Li MM, Tyler WJ. Ultrasonic neuromodulation by brain stimulation with transcranial ultrasound. Nat Protoc. 2011 Sep 1;6(9):1453-70. doi: 10.1038/nprot.2011.371.

    PMID: 21886108BACKGROUND
  • Fava M. Diagnosis and definition of treatment-resistant depression. Biol Psychiatry. 2003 Apr 15;53(8):649-59. doi: 10.1016/s0006-3223(03)00231-2.

    PMID: 12706951BACKGROUND
  • Gavrilov LR, Tsirulnikov EM, Davies IA. Application of focused ultrasound for the stimulation of neural structures. Ultrasound Med Biol. 1996;22(2):179-92. doi: 10.1016/0301-5629(96)83782-3.

    PMID: 8735528BACKGROUND
  • Bystritsky A, Korb AS, Douglas PK, Cohen MS, Melega WP, Mulgaonkar AP, DeSalles A, Min BK, Yoo SS. A review of low-intensity focused ultrasound pulsation. Brain Stimul. 2011 Jul;4(3):125-36. doi: 10.1016/j.brs.2011.03.007. Epub 2011 Apr 1.

    PMID: 21777872BACKGROUND
  • ter Haar G. Therapeutic applications of ultrasound. Prog Biophys Mol Biol. 2007 Jan-Apr;93(1-3):111-29. doi: 10.1016/j.pbiomolbio.2006.07.005. Epub 2006 Aug 4.

    PMID: 16930682BACKGROUND

MeSH Terms

Conditions

DepressionAnxiety Disorders

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehaviorMental Disorders

Results Point of Contact

Title
Dr. John J.B. Allen
Organization
University of Arizona

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Distinguished Professor

Study Record Dates

First Submitted

February 14, 2016

First Posted

February 18, 2016

Study Start

October 1, 2015

Primary Completion

April 1, 2016

Study Completion

May 1, 2016

Last Updated

January 8, 2018

Results First Posted

January 8, 2018

Record last verified: 2018-01

Data Sharing

IPD Sharing
Will not share