NCT06771687

Brief Summary

The goal of this clinical trial is to learn if a specific type of exercise training (high intensity interval training) can improve exercise capacity in people with a congenital heart defect that required the creation of a new connection between the right ventricle and pulmonary artery. This includes people with a truncus arteriosus, pulmonary atresia with a ventricular septal defect or severe tetralogy of Fallot. This study focuses on people aged 12 to 45 years. The main questions it aims to answer are:

  • Can a 12-week home-based high intensity interval exercise training program increase the exercise capacity?
  • Can factors that predict whether or not the exercise training program can increase the exercise capacity in specific people be identified? Researchers will compare the results from the intervention group to the control group. Participants will be assigned to one of these two groups at inclusion. The control group will also receive the intervention, after the control period. Participants will:
  • Participate in a 12-week home-based exercise training program (3x30 minutes a week, digitally supervised);
  • Attend 2 or 3 study visits (which partially is standard care) (2 visits for the intervention group, 3 visits for the control group);
  • Each study visit includes: echocardiography, magnetic resonance imaging (MRI) of the heart, cardiopulmonary exercise testing (CPET), blood and feces sampling, and questionnaires on quality of life and physical activity.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
38

participants targeted

Target at P25-P50 for not_applicable

Timeline
29mo left

Started Jan 2025

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
recruiting

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 Progress35%
Jan 2025Oct 2028

First Submitted

Initial submission to the registry

September 16, 2024

Completed
4 months until next milestone

First Posted

Study publicly available on registry

January 13, 2025

Completed
3 days until next milestone

Study Start

First participant enrolled

January 16, 2025

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2028

Last Updated

January 21, 2026

Status Verified

January 1, 2026

Enrollment Period

2.7 years

First QC Date

September 16, 2024

Last Update Submit

January 19, 2026

Conditions

Keywords

Heart Defects, CongenitalTruncus Arteriosus, PersistentPulmonary AtresiaTetralogy of FallotPhysical Conditioning, HumanHigh-Intensity Interval TrainingExercise Test

Outcome Measures

Primary Outcomes (1)

  • Peak oxygen consumption

    Peak oxygen consumption obtained with CPET

    At baseline, week 14, week 27 (control arm only) and 1 year

Secondary Outcomes (28)

  • Maximum wattage

    At baseline, week 14, week 27 (control arm only) and 1 year

  • Heart rate recovery

    At baseline, week 14, week 27 (control arm only) and 1 year

  • Ventilatory efficiency slope

    At baseline, week 14, week 27 (control arm only) and 1 year

  • Atrial volumes

    At baseline, week 14, week 27 (control arm only) and 1 year

  • Left and right ventricular inflow pattern

    At baseline, week 14, week 27 (control arm only) and 1 year

  • +23 more secondary outcomes

Study Arms (2)

Intervention

EXPERIMENTAL

This arm receives the 12-week exercise intervention, with a study visit before and after the intervention.

Behavioral: High intensity interval training

Control

NO INTERVENTION

This arm starts with a 12-week control period, after which the participants will also receive the 12-week exercise intervention. Participants will have a study visit before and after the control period and after the intervention. For the primary outcome parameter, only the control period will be used to compare to the intervention. For the secondary outcome parameters (predictors for response), also the intervention period of the control group will be used.

Interventions

A 12-week high intensity interval training program, with 30 minutes of exercise three times a week. The trainings can be completed at home and will be digitally supervised.

Intervention

Eligibility Criteria

Age12 Years - 45 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Congenital absence of an unobstructed connection between the right ventricle and pulmonary artery, requiring surgical implantation of a right ventricle to pulmonary artery conduit, including patients with:
  • Truncus arteriosus
  • Pulmonary atresia with ventricular septum defect
  • Severe tetralogy of Fallot
  • Other forms of pulmonary atresia with biventricular correction
  • Age 12 to 45 years.
  • Current follow-up in Academic Center for Congenital Heart Disease (ACAHA; Erasmus MC Rotterdam and Radboudumc Nijmegen).
  • Signed informed consent.

You may not qualify if:

  • Ventricular arrhythmias and/or channelopathy.
  • Implantable cardioverter defibrillator implantation due to inherited arrhythmia syndromes.
  • Left ventricular ejection fraction and/or right ventricular ejection fraction less than 30 percent.
  • Elite athletes (i.e. national team, Olympians, professional athletes, exercising equal to or more than 10 h/week, according to definition in 2020 European Society of Cardiology Guidelines for Sports Cardiology and Exercise in Patients with Cardiovascular Disease).
  • Cardiovascular lesions requiring intervention (according to international guidelines).
  • Cardiovascular intervention (surgery or catheterization) less than 6 months ago.
  • Cardiovascular medication changes less than 3 months ago.
  • Hospitalization for treatment of cardiovascular events less than 6 months ago.
  • Comorbidities or developmental delay impeding exercise training (e.g. neuromuscular disease, symptomatic myocardial ischemia, syndromic diagnoses such as trisomy 21).
  • Inability to provide informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Radboudumc

Nijmegen, Gelderland, 6525 GA, Netherlands

NOT YET RECRUITING

ErasmusMC

Rotterdam, South Holland, 3015 GD, Netherlands

RECRUITING

MeSH Terms

Conditions

Heart Defects, CongenitalTruncus Arteriosus, PersistentPulmonary AtresiaTetralogy of FallotMotor Activity

Interventions

High-Intensity Interval Training

Condition Hierarchy (Ancestors)

Cardiovascular AbnormalitiesCardiovascular DiseasesHeart DiseasesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesAortopulmonary Septal DefectHeart Septal DefectsVascular MalformationsHeart Valve DiseasesBehavior

Intervention Hierarchy (Ancestors)

Physical Conditioning, HumanExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Beatrijs Bartelds, MD, PhD

    Erasmus Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Anouk S Moerdijk, MD

CONTACT

Beatrijs Bartelds, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
CROSSOVER
Model Details: Participants will be randomized into the intervention or control arm. After the control period, participants in the control arm will also receive the intervention.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator, pediatric cardiologist, associate professor

Study Record Dates

First Submitted

September 16, 2024

First Posted

January 13, 2025

Study Start

January 16, 2025

Primary Completion (Estimated)

October 1, 2027

Study Completion (Estimated)

October 1, 2028

Last Updated

January 21, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations