CClinicalTrials.gg
Status unknownNCT05617534Updated Dec 21, 2022

Impact of Exercise Training on Single Ventricle Function in Paediatric Fontan Patients

An observational study in Univentricular Heart, sponsored by Children's Health Ireland. Status unknown at 1 site in Ireland. Open to participants aged 8 Years to 18 Years. Per ClinicalTrials.gov, last updated 2022-12-21.

Sponsored by Children's Health Ireland · Observational

The sponsor has not verified this record recently (last verified Dec 2022), so the status shown — last known as Not yet recruiting — may be out of date.
Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
30
Ages
8 Years to 18 Years
Sex
All
01

Study summary

The goal of this observational study is to learn about how a prescribed Exercise Training Program would affect children living with a Fontan circulation.

From birth, the children who are born with single functioning ventricle will undergo 3-staged Fontan surgery to achieve a unique Fontan circulation, supported by one functioning ventricle. With advancement in surgical technique and medical care, there are increasing number of children living with Fontan circulating surviving into adulthood.

A significant number of these individuals develop complications in their adulthood due to problems related to this unique circulation, including reduced exercise tolerance, heart failure, abnormal heart rhythm or premature death. Many of these children have acquired sedentary lifestyle, and may have lower self-perceived health related quality of life.

Exercise training is a well-established therapy used in adult population with heart failure. It has been shown to be safe in children with congenital heart disease and with Fontan circulation, it improves their aerobic exercise capacity which is associated with better outcomes.

The main question[s] it aims to answer are the impact of a Exercise Training program on:

  1. Single ventricle function
  2. Exercise capacity
  3. Self-perceived quality of life
  4. Skeletal muscle mass

Participants will be given a 20-weeks exercise program, 3 sessions of 30 minutes workout weekly, to carry out at home. The following tests will be performed prior to starting and upon completion of the exercise program:

  • Echocardiogram
  • Cardiopulmonary exercise test
  • Body composition scan using a bio-impedance analyser
  • Quality of life questionnaires
02

Conditions studied

  • Univentricular Heart

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Keywords

  • Fontan
  • Exercise Training
  • Ventricular Function
  • Quality of Life
03

In context

Univentricular Heart

104 studies on the registry are indexed under Univentricular Heart; 22 are open to participants now.

This study's planned enrollment of 30 is below the median of 50 across 41 observational studies indexed under Univentricular Heart.

Browse Univentricular Heart studies →

Lead sponsor

Children's Health Ireland is the lead sponsor of 5 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
8 Years to 18 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Children aged 8 to 18 years old, who are living with a Fontan circulation, who have met the eligibility criteria listed above.

Inclusion criteria

  • Patients with Fontan circulation, age range 8 to 18 years
  • Ability to perform a cardiopulmonary exercise stress test (CPET)
  • Free from acute or chronic respiratory illness and/or conditions that might affect exercise performance
  • Who have had a Fontan operation at least six months prior.

Exclusion criteria

Exclusion Criteria:

  • Existing neuro-disability i.e. with paresis post cerebrovascular accident
  • Neurodevelopmental issue with inability to comply with commands.
  • Documented life-threatening arrhythmia without implantable cardioverter defibrillator
  • Moderate or severe atrio-ventricular valve regurgitation
  • Moderate or severe ventricular dysfunction by echocardiography exams
  • Acute inflammatory cardiac disease
  • documented coronary artery stenosis and/or myocardial ischaemia
  • Heart failure requiring hospitalisation in the past year
  • Evidence of systemic venous pathway obstruction by echocardiography or catheterisation
  • Resting oxygen saturation \< 90%
  • Systemic ventricular outflow tract stenosis with peak resting systolic gradient > 50mmHg
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
30 participants (estimated)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Single ventricle Function

    By implementing a prescribed exercise training regime over a 20 week period, a change will be noted in ventricular function at the subclinical state using Echocardiography parameters.

    Time frame: After a 20 week Exercise training program

Secondary outcomes

  1. Exercise Capacity

    By implementing a prescribed exercise training regime over a 20 week period, an improvement will be noted in functional exercise capacity, which will be objectively assessed using cardiopulmonary exercise test.

    Time frame: After a 20 week Exercise training program

  2. Self-perceived Quality of life - Generic

    By implementing a prescribed exercise training regime over a 20 week period, an improvement will be noted in self-reported quality of life, which will be assessed using validated QOL questionnaire - Using Paediatric Quality of Life Inventory, PedsQL v4.0

    Time frame: After a 20 week Exercise training program

  3. Self-perceived Quality of life - Cardiac module

    By implementing a prescribed exercise training regime over a 20 week period, an improvement will be noted in self-reported quality of life, which will be assessed using validated QOL questionnaire - Using PedsQL Cardiac Module v3.0

    Time frame: After a 20 week Exercise training program

  4. Skeletal muscle mass

    By implementing a prescribed exercise training regime over a 20 week period, an improvement will be noted in the skeletal muscle mass, which will be assessed using a non-invasive bio-impedance analyser.

    Time frame: After a 20 week Exercise training program

07

Study locations

1 site
  • Children's Health Ireland
    Dublin, D12 N512, Ireland
    • Li Yen Ng, MB BCh BAO · Contact · ngliyen@gmail.com · +353862341835
    • Adam James, MD · Contact · adamoj@gmail.com · +353871925275
    • Adam James, MD · Principal investigator
    • Li Yen Ng, MB BCh BAO · Sub investigator
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 21, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05617534
Lead sponsor
Children's Health Ireland
Collaborators
CHI Research & Innovation Office
Responsible party
Adam James (Consultant Paediatric Cardiologist, Children's Health Ireland) — Principal investigator
First posted
Nov 15, 2022
Start date
Jan 10, 2023 (estimated)
Primary completion
Dec 31, 2023 (estimated)
Completion
Dec 31, 2023 (estimated)
Last update
Dec 21, 2022

Study contacts

Li Yen Ng, MB BCh BAO
Contact
ngliyen@gmail.com
+353862341835
Adam James, MD
Contact
adamoj@gmail.com
+353871925275
Adam James, MD
principal investigator · Children's Health Ireland

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Dec 2022. You cannot join it, but the record below documents what was studied.

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