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Antisocial BehaviorNCT02674516

The Effect of Repeated Prefrontal Cortex Stimulation on Antisocial and Aggressive Behavior

A study testing Transcranial direct current stimulation in people with Antisocial Behavior and Aggression, run by University of Pennsylvania at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study investigates the relationship between prefrontal cortex activity and antisocial and aggressive behavior, and risk factors for such behavior. In the double-blind, randomized controlled trial, participants will undergo three sessions of anodal transcranial direct current stimulation of the dorsolateral… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Antisocial Behavior, Aggression
What is being tested?
Transcranial direct current stimulation
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
32 participants
Where
1 siteUnited States
Study dates
Jan 2016to Jun 2021
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Above 18 years of age
  • Able to understand the nature of the study and give informed consent

Who cannot join

  • Currently consuming anti-convulsant, anti-psychotic, or sedative/hypnotic medications
  • Currently consuming anti-depressants
  • History of seizures
  • Metallic implants on the scalp
  • Participation in other transcranial magnetic stimulation (TMS) or tDCS experiments on the same day
  • History of adverse reactions to tDCS

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

Other trials in United States

About this study

Official title: The Effect of Repeated Transcranial Direct Current Stimulation of the Prefrontal Cortex on Antisocial and Aggressive Behavior

This study investigates the relationship between prefrontal cortex activity and antisocial and aggressive behavior, and risk factors for such behavior. In the double-blind, randomized controlled trial, participants will undergo three sessions of anodal transcranial direct current stimulation of the dorsolateral prefrontal cortex or sham stimulation and complete survey and laboratory measures assessing antisocial behavior and risk factors. Heart rate and skin conductance will also be measured.

Being tested
Transcranial direct current stimulation, Sham transcranial direct current stimulation
Keywords
antisocial behavior, aggression, transcranial direct current stimulation, dorsolateral prefrontal cortex, associated risk factors
Medical subject headings
Antisocial Personality Disorder, Aggression

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT02674516
Study groupRoleWhat they receive
Anodal stimulationExperimentalParticipants in the active stimulation group will undergo 3 sessions of anodal bilateral transcranial direct stimulation (tDCS) of the dorsolateral prefrontal cortex (DLPFC) on three consecutive days. tDCS will be delivered by a battery-driven, constant-current stimulator connected to three saline-soaked surface sponge electrodes. Two anodal electrodes (25cm2) will be placed over the DLPFC bilaterally and one cathodal electrode (35cm2) will be placed at the back of the neck. Scalp electrodes will be positioned over the F3 and F4 according to the 10-20 EEG international system. A current of 2mA (1mA at each DLPFC site) will be applied for 20 minutes and the current will be ramped up and down at the beginning and end of the stimulation period.
Receives: Device: Transcranial direct current stimulation
Sham stimulationSham comparatorThe sham transcranial direct current stimulation condition will involve the same placement of the electrodes, current intensity, and ramp time as the real tDCS condition, but stimulation will only last for 30 seconds.
Receives: Device: Sham transcranial direct current stimulation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Pins Inserted Into a Virtual Voodoo Doll After 48 Hours

    The number of pins (between 0 and 51) that participants decide to insert into a picture of a voodoo doll on a computer that represents either a romantic partner or close friend will be recorded.

    Measured: On average, 48 hours after the first 20-minute tDCS or sham session ends

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Feb 2016 (estimated)
  2. Study startJan 2016
  3. Primary completionJun 2020
  4. Study completionJun 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02674516
Sponsor's protocol ID
823967
Status last verified
Jan 2022
First submitted
26 Jan 2016
Last updated
18 Jan 2022
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Transcranial direct current stimulation in people with Antisocial Behavior and Aggression, run by University of Pennsylvania at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Jan 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 Jan 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Pins Inserted Into a Virtual Voodoo Doll After 48 Hours (time frame: On average, 48 hours after the first 20-minute tDCS or sham session ends). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Jan 2022.

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