NCT07572734

Brief Summary

The goal of this pilot clinical trial is to assess the feasibility of administering a paced breathing exercise intervention program to children and adolescents in the acute period after concussion, and to document the autonomic function, and symptom severity (post-concussion symptoms, anxiety, sleep) before and after administration of the intervention. Participants will be instructed to perform a daily 10-minutes daily paced breathing home-exercise program and to document the daily exercises performed within a performance log, or receive usual care from the Pediatric Emergency Department. A weekly phone meeting will be performed with all participants to assess recovery progress. Participants randomized to the intervention group will also be asked about their exercises, will be provided specific instructions and adjustments as necessary. All participants (intervention and control group) will undergo a second assessment after four weeks following completion of the intervention program. During the second assessment, information regarding the intervention feasibility, time to return to school, return to sport, and clear from medication will be collected as well.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
13mo left

Started May 2026

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress2%
May 2026May 2027

First Submitted

Initial submission to the registry

May 1, 2026

Completed
Same day until next milestone

Study Start

First participant enrolled

May 1, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 7, 2026

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2027

Last Updated

May 7, 2026

Status Verified

May 1, 2026

Enrollment Period

1.1 years

First QC Date

May 1, 2026

Last Update Submit

May 1, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Feasibility-days of practice

    Number of days children in the experimental group will engage in performing their breathing exercises

    4 weeks

  • Feasibility-daily duration of practice

    Number of minutes children in the experimental group will engage in performing their breathing exercises

    4 weeks

Secondary Outcomes (2)

  • Autonomic nervous system function

    4 weeks

  • Concussion symptom severity

    4 weeks

Study Arms (2)

Breathing exercises

EXPERIMENTAL

In addition to the standard care in the Pediatric Emergency Department, the intervention group will have a daily 10-minutes paced breathing home-exercise program. The paced breathing exercise including inhale for 4-second and exhale for 6-seconds, for a total of 6 breaths per minute.

Behavioral: Paced breathing exercises

Usual Care

NO INTERVENTION

Treatment for a concussion involves relative physical and cognitive rest for 24-48 hours, followed by gradually returning to normal activities and school as symptoms improve.

Interventions

The paced breathing exercise including inhale for 4-second and exhale for 6-seconds, for a total of 6 breaths per minute.

Breathing exercises

Eligibility Criteria

Age9 Years - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Aged 9-18 years old
  • hours post-concussion
  • present to the ED with at least one post-concussion symptom in the Post-concussion Symptom Inventory (PSCI) that is relevant to ANS dysfunction (e.g. dizziness, nausea, fatigue, confusion, anxiety or sleep disturbances)

You may not qualify if:

  • known heart disease,
  • previous neurological problems other than concussion

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Montreal Children's Hospital

Montreal, Quebec, H4A 3J1, Canada

RECRUITING

MeSH Terms

Conditions

Brain Concussion

Condition Hierarchy (Ancestors)

Brain Injuries, TraumaticBrain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemHead Injuries, ClosedWounds and InjuriesWounds, Nonpenetrating

Central Study Contacts

Isabelle Gagnon, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior Scientist

Study Record Dates

First Submitted

May 1, 2026

First Posted

May 7, 2026

Study Start

May 1, 2026

Primary Completion (Estimated)

May 30, 2027

Study Completion (Estimated)

May 30, 2027

Last Updated

May 7, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will not share

Locations