NCT04961112

Brief Summary

This study investigates the potential of cranial electrotherapy stimulation to mitigate anxiety induced cognitive deficits

Trial Health

87
On Track

Trial Health Score

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

Enrollment
124

participants targeted

Target at P50-P75 for not_applicable anxiety

Timeline
Completed

Started Sep 2021

Longer than P75 for not_applicable anxiety

Geographic Reach
1 country

1 active site

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

First Submitted

Initial submission to the registry

July 1, 2021

Completed
13 days until next milestone

First Posted

Study publicly available on registry

July 14, 2021

Completed
2 months until next milestone

Study Start

First participant enrolled

September 6, 2021

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 7, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 7, 2025

Completed
Last Updated

April 10, 2025

Status Verified

April 1, 2025

Enrollment Period

3.6 years

First QC Date

July 1, 2021

Last Update Submit

April 7, 2025

Conditions

Keywords

Cranial electrotherapy stimulationExecutive functioningInduced AnxietyCognitionThreat of shockHeart rate variability

Outcome Measures

Primary Outcomes (4)

  • Task switching

    Switch cost (mean switch reaction time- mean stay reaction time)

    68 weeks

  • Working memory (N-back)

    2-back condition mean accuracy

    68 weeks

  • Inhibition (Stroop)

    Stroop interference cost (mean incongruent reaction time- mean congruent reaction time)

    68 weeks

  • Processing speed (Simple reaction time task)

    Mean reaction time

    68 weeks

Study Arms (4)

Experimental - Induced Anxiety

EXPERIMENTAL

Participants will be administered a shock procedure in which they are exposed to safe electrical shock that will be gradually increase from (1) 30 milliseconds to (4) 80 milliseconds to an individual threshold that is uncomfortable but not painful. Participants will be told they may receive additional shocks for poor performance during cognitive assessments. Participants will be administered cranial electrotherapy stimulation with a frequency of .5 Hz and a current of 100 microamps during 30 minutes of cognitive assessments of task switching, inhibition (stroop), working memory (n-back), and processing speed (simple reaction time).

Device: Cranial Electrotherapy Stimulation

Experimental - No Induced Anxiety

EXPERIMENTAL

Participants will be administered a shock procedure in which they are exposed to safe electrical shock that will be gradually increase from (1) 30 milliseconds to (4) 80 milliseconds to an individual threshold that is uncomfortable but not painful. After this procedure, the shock belt will be turned off. Participants will be told they will not receive additional shocks during cognitive assessments. Participants will be administered cranial electrotherapy stimulation with a frequency of .5 Hz and a current of 100 microamps during 30 minutes of cognitive assessments of task switching, inhibition (stroop), working memory (n-back), and processing speed (simple reaction time).

Device: Cranial Electrotherapy Stimulation

Sham - Induced Anxiety

SHAM COMPARATOR

Participants will be administered a shock procedure in which they are exposed to safe electrical shock that will be gradually increase from (1) 30 milliseconds to (4) 80 milliseconds to an individual threshold that is uncomfortable but not painful. Participants will be told they may receive additional shocks for poor performance during cognitive assessments. Participants will be administered sham cranial electrotherapy stimulation with no current during 30 minutes of cognitive assessments of task switching, inhibition (stroop), working memory (n-back), and processing speed (simple reaction time).

Device: Sham Cranial Electrotherapy Stimulation

Sham - No Induced Anxiety

SHAM COMPARATOR

Participants will be administered a shock procedure in which they are exposed to safe electrical shock that will be gradually increase from (1) 30 milliseconds to (4) 80 milliseconds to an individual threshold that is uncomfortable but not painful. After this procedure, the shock belt will be turned off. Participants will be told they will not receive additional shocks during cognitive assessments. Participants will be administered sham cranial electrotherapy stimulation with no current during 30 minutes of cognitive assessments of task switching, inhibition (stroop), working memory (n-back), and processing speed (simple reaction time).

Device: Sham Cranial Electrotherapy Stimulation

Interventions

Participants will receive cranial electrotherapy stimulation stimulation on one of two separate visits (within-subjects).

Also known as: Transcranial Pulsed Current Stimulation, Cranial Electrical Stimulation
Experimental - Induced AnxietyExperimental - No Induced Anxiety

Participants will receive sham stimulation on one of two separate visits (within-subjects).

Sham - Induced AnxietySham - No Induced Anxiety

Eligibility Criteria

Age18 Years - 28 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Between 18-28 years old

You may not qualify if:

  • History of diagnosis with a neurological or psychiatric disorder.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tufts University

Medford, Massachusetts, 02155, United States

Location

MeSH Terms

Conditions

Anxiety DisordersCognition Disorders

Condition Hierarchy (Ancestors)

Mental DisordersNeurocognitive Disorders

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
All study staff are blinded to active and sham brain stimulation devices until the completion of data collection.
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

July 1, 2021

First Posted

July 14, 2021

Study Start

September 6, 2021

Primary Completion

April 7, 2025

Study Completion

April 7, 2025

Last Updated

April 10, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

Locations