Clinical trial · Interventional
HIIT in Pediatric Heart Transplant Recipients (MedBIKE™)
High Intensity Interval Training in Pediatric Heart Transplant Recipients: Evaluating a Novel Telemedicine Video Game-Linked Exercise Platform (MedBIKE™)
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Heart transplantation is the long-term treatment for children and adults with advanced heart failure. Post-transplant outcomes have improved over time, such that 50% of pediatric heart transplant recipients (HTR) remain alive with a need for re-transplantation 17-years following the initial transplant. With improved short- and medium-term outcomes, focus has shifted towards optimizing long-term survival and reducing transplant-associated morbidities. This includes strategies aimed at optimizing cardiorespiratory fitness and physical activity levels. Pediatric and adult HTRs have reduced exercise capacity compared with the general population. Previous groups have shown gradual improvements in heart rate response to exercise and exercise capacity in pediatric HTRs. However, after an initial improvement, exercise capacity appears to plateau, or even decline in pediatric HTRs, and remains sub-optimal compared with the general population. Most exercise interventions in HTRs to date have focused on moderate-intensity continuous exercise (MICE), with some resistance components incorporated. More recently, high-intensity interval training (HIIT), consisting of short, intense bursts of exercise with rest periods, has been explored in the adult HTR population, with findings to date suggesting that it may yield greater improvements in cardiorespiratory fitness compared with MICE. Exercise interventions, particularly HIIT interventions, have consistently shown clinically important improvements in exercise capacity in adult HTRs that are linked with improved long-term post-transplant outcomes and well-being. Unfortunately, trials of exercise interventions in pediatric HTRs remain lacking. This study team is proposing an assessment of the feasibility of a home-based HIIT exercise program using a novel telemedicine-enable video game linked customizable cycle ergometer (MedBIKE™).
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Pediatric ALL | Childhood Acute Lymphoblastic Leukemia | ALIAS | 0.90 |
| Transplant; Failure, Heart | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| MedBIKE HIIT | Device | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- MedBIKE HIIT
- description
- Participants will complete the baseline assessments and begin the MedBIKE HIIT Exercise Program intervention within 2-weeks. After the completion of the 12-week program, participants will return for follow-up assessments which will be repeated at 6- and 12-months post intervention.
- interventionNames
- Device: MedBIKE HIIT
- type
- NO_INTERVENTION
- label
- Standard of Care
- description
- Participants will complete the baseline assessments and continue with standard of care (no intervention) for 12-weeks then return for a repeat assessment. Participants will then crossover into the MedBIKE HIIT Exercise Program intervention group for 12-weeks. A post-intervention assessment will be completed and follow-up assessments at 6- and 12-months post intervention.
Primary outcomes (1)
- measure
- Evaluate the feasibility of a 12-week, home-based HIIT MedBIKE™ intervention in pediatric heart transplant recipients.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 10 Years
- Maximum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Pediatric heart transplant recipients, at least 6-months post heart transplantation * Aged 10-18 years Exclusion Criteria: * Non-English speaking (thus limiting communication during the MedBIKE™ sessions) * Home environment cannot accommodate the MedBIKE™ system (for example, space limitations) * History of multiorgan transplant * Adult unavailable to supervise the home-based exercise sessions * Episode of clinical antibody- or cellular-mediated rejection within 3-months of the baseline assessment * Previous involvement in a cardiac rehabilitation or exercise intervention program * Primary cardiologist has exercise restricted the participant or counsels against participation * Previous exercise stress test demonstrating sustained arrhythmias, ST segment elevation or depression greater than 3mm, an inappropriate rise in blood pressure (BP) (\<20 mmHg) or a systolic BP \>200 mmHg, or symptoms of chest pain or syncope * Resting arterial saturation \<85% or oxygen requirements * Moderate ventricular systolic dysfunction (or worse) at the most recent echocardiogram * History of chest pain on exertion * Unrepaired/unpalliated CHD * Arrhythmias in the last year (including supraventricular tachycardia, ventricular tachycardia, atrioventricular block (Mobitz II or worse)) * New York Heart Association class II or worse symptoms * Active medical inter-current illness limiting ability to participate * Cognitive impairment limiting the communication needed for the HIIT program * Extracardiac or congenital abnormality limiting the participant's functional ability to exercise
References
Publications (2)
- RESULTKhoury M, Phillips DB, Wood PW, Mott WR, Stickland MK, Boulanger P, Rempel GR, Conway J, Mackie AS, Khoo NS. Cardiac rehabilitation in the paediatric Fontan population: development of a home-based high-intensity interval training programme. Cardiol Young. 2020 Oct;30(10):1409-1416. doi: 10.1017/S1047951120002097. Epub 2020 Jul 27. PMID 32716280
- DERIVEDNytroen K, Rolid K. A Review of High-Intensity Interval Training in Heart Transplant Recipients: Current Knowledge and Future Perspectives. J Cardiopulm Rehabil Prev. 2024 May 1;44(3):150-156. doi: 10.1097/HCR.0000000000000847. Epub 2024 Mar 15. PMID 38488139