NCT07037030

Brief Summary

Attention-deficit/hyperactivity disorder (ADHD) affects approximately 11% of children and adolescents in the United States. Individuals with ADHD experience substantial impairments and burdens across multiple areas of daily living, including peer difficulties, academic difficulties, poor job outcomes, high rates of co-occurring disorders, and large financial costs. Although there are many well-established, evidence-based treatments for ADHD, many children continue to experience significant impairment and elevated ADHD symptoms even with prolonged treatment. Further, there are several limitations to existing treatment approaches, including medication side effects, difficulty accessing behavioral treatments, and high out-of-pocket costs for behavioral treatments. Thus, there is a crucial need to identify low cost, low burden, alternative or additive intervention approaches for pediatric ADHD. In the current pilot study, the investigators aim to evaluate responses in behavioral markers of attention to a mindfulness-based intervention. Mindfulness-based interventions (MBIs), including deep breathing, have received considerable research attention regarding their benefits for ADHD symptoms. Deep breathing is a strong candidate as a supplementary MBI intervention for children with ADHD due to its simplistic and easy-to-implement nature. Studies examining the effects of deep breathing on physiological arousal and ADHD symptoms in children have yielded promising results. Children will be led through a brief deep breathing intervention using a novel tool designed to optimize child engagement in deep breathing. This tool is designed to be held in the child's hands and uses a series of haptic vibrations to provide real-time deep breathing pacing guidance. The investigators predict that following a brief deep breathing practice, children with ADHD will demonstrate improved sustained attention, reaction time consistency, and inhibitory control. These areas of attention and behavioral functioning will be assessed using computer tasks. The investigators plan to use the results of this study to strengthen a future application for grant funding to run a similar trial with many more children. The investigators believe that the results of this and future studies will improve the lives of children with ADHD and their families.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
10

participants targeted

Target at below P25 for not_applicable

Timeline
1mo left

Started Feb 2026

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

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 Progress69%
Feb 2026Jul 2026

First Submitted

Initial submission to the registry

June 17, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 25, 2025

Completed
8 months until next milestone

Study Start

First participant enrolled

February 26, 2026

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2026

Last Updated

March 31, 2026

Status Verified

June 1, 2025

Enrollment Period

4 months

First QC Date

June 17, 2025

Last Update Submit

March 26, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Behavioral Performance Metrics

    Behavioral markers of sustained attention and inhibitory control will be assessed using a Go/NoGo task. Omission errors (failing to respond to a Go trial) and reaction time variability (standard deviation of reaction time across all trials) will serve as markers of sustained attention. Commission errors (responding to a NoGo trial) will serve as a marker of inhibitory control.

    During the single in-person research visit

  • Neurophysiological Markers

    Electroencephalography (EEG) methods will be used to measure P300 event-related potentials (ERP), a positive inflection occurring around 300ms after a response to task-relevant and irrelevant stimuli that reflects attention orienting, stimulus evaluation, and inhibitory control. Stimulus-locked P300 amplitude in response to correct Go-trials will be a marker of cortical attention processes, while stimulus-locked P300 amplitude in response to NoGo trials will be a marker of cortical inhibitory control processes.

    During the single in-person research visit

Study Arms (1)

Deep Breathing Intervention

EXPERIMENTAL

Children will complete a brief deep breathing intervention

Behavioral: Guided deep breathing

Interventions

Children will complete a brief, 5-minute, deep breathing intervention using the Domi tool to help maintain a 5-second breath pace

Deep Breathing Intervention

Eligibility Criteria

Age7 Years - 11 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Participant age 7 years, 0 months - 11 years, 11 months
  • Parent-reported ADHD diagnosis for the participant

You may not qualify if:

  • Previous confirmed or suspected diagnosis of intellectual disability
  • Previous confirmed or suspected diagnosis of autism spectrum disorder
  • Currently prescribed non-stimulant medication for the purpose of managing ADHD symptoms
  • Hearing impairments
  • Primary language other than English
  • Known seizure disorder

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Boston Children's Hospital Laboratories of Cognitive Neuroscience

Brookline, Massachusetts, 02445, United States

Location

MeSH Terms

Conditions

Attention Deficit Disorder with Hyperactivity

Condition Hierarchy (Ancestors)

Attention Deficit and Disruptive Behavior DisordersNeurodevelopmental DisordersMental Disorders

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Postdoctoral Psychology Fellow

Study Record Dates

First Submitted

June 17, 2025

First Posted

June 25, 2025

Study Start

February 26, 2026

Primary Completion (Estimated)

July 1, 2026

Study Completion (Estimated)

July 1, 2026

Last Updated

March 31, 2026

Record last verified: 2025-06

Locations