Using brain stimulation to reduce aggression in adults with developmental disabilities

The Use of Transcranial Direct Current Stimulation (tDCS) to Reduce Impulsivity and Aggression in Adults With Developmental Disabilities: The tDCS-RIADD Randomized Controlled Trial Protocol

Not applicable Interventional Queen's University · NCT04732052

This study is testing if a brain stimulation technique can help reduce impulsivity and aggression in adults with developmental disabilities.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorQueen's University Academic / other
Locations1 site (Kingston, Ontario)
Trial IDNCT04732052 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of transcranial Direct Current Stimulation (tDCS) in reducing impulsivity and aggression in adults with developmental disabilities. It employs a randomized controlled trial design with 60 participants aged 18 to 65 who have a history of aggression. Participants will receive either active tDCS or a sham treatment across three sessions, with behavioral assessments conducted before, immediately after, and at one and four weeks post-treatment. The study aims to provide insights into the potential of non-invasive brain stimulation techniques for managing aggressive behaviors.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-64 with a developmental disability and a recent history of aggression.

Not a fit: Patients with a history of epilepsy, brain injury, or those with certain medical implants may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce aggressive behaviors in individuals with developmental disabilities, improving their quality of life and interactions with others.

How similar studies have performed: While the use of tDCS is a relatively novel approach in this context, similar studies have shown promise in modulating impulsivity and aggression in other populations.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults aged 18-64 years
* Diagnosis of a developmental disability
* History of one or more incidents of aggression in the last month
* Consent to participate in the trial by the individual or their Substitute Decision Maker

Exclusion Criteria:

* History of epilepsy or seizures
* History of acquired brain injury
* Having metal in the brain/skull, e.g. splinters, fragments or clips
* Having a cochlear implant
* Having an implanted neuro-stimulator (e.g. direct brain stimulation, epidural/subdural stimulation, vagal nerve stimulation)
* History of brain surgery of procedure
* History of severe adverse reaction to tDCS
* Having a cardiac pacemaker or intracardiac lines
* Current alcohol or drug misuse
* Having a sensitive scalp

Where this trial is running

Kingston, Ontario

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Aggression
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.