Congenital Heart Disease Clinical Trial
Official title:
The Effects of Branch Pulmonary Artery Stenting in d-TGA, ToF and TA: a Randomized Control Trial
The goal of this randomized controlled trial is to identify the effects of percutaneous interventions for branch PA stenosis on exercise capacity in patients with d-TGA, ToF and TA. The main question[s] it aims to answer are: The primary study objective is to identify the effects of percutaneous interventions for branch PA stenosis on exercise capacity in patients with d-TGA, ToF and TA. The secondary objectives are 1) to assess the effects of percutaneous interventions for branch PA stenosis on RV function and 2) to define early markers for RV function and adaptation to improve timing of these interventions. Participants will undergo the same series of examinations at baseline and approximately 6 months follow-up (within 6 week time-range) as part of standard care: conventional transthoracic echocardiogram (TTE), cardiopulmonary exercise testing (CPET) and conventional Cardiac Magnetic Resonance (CMR) including a low dose dobutamine stress MRI to assess RV functional reserve. The low dose dobutamine stress MRI will be performed in the interventional group from the UMC Utrecht/WKZ and Erasmus MC because the LUMC and AUMC do not have a suitable infrastructure for the low dose dobutamine stress MRI and this cannot be achieved throughout the duration of this study. The baseline CMR in the interventional group will be performed as close as possible prior to the intervention but maximal 4 weeks prior to the intervention. In addition, the intervention group will undergo standard RV pressure measurements during the intervention. Quality of life (QoL) questionnaires will be obtained at baseline and 2 weeks post intervention (intervention group) or a similar time range in the control group, which is based on experts opinion. TTE, CPET and conventional CMR will be performed within 2-4 years follow-up to assess the long-term effects of percutaneous PA interventions. Researchers will compare the difference in VO2 max (% predicted) between the interventional group (TGA, ToF or TA patients with a class II indication for a PA intervention who will undergo a percutaneous intervention for a PA stenosis) and the control group (TGA, ToF or TA patients with a class II indication for a PA intervention who will undergo conservative management)
Status | Recruiting |
Enrollment | 56 |
Est. completion date | September 30, 2025 |
Est. primary completion date | September 30, 2025 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 8 Years and older |
Eligibility | Inclusion Criteria: In order to be eligible to participate in this study, a subject must meet all of the following criteria: - Patients with d-TGA post ASO, ToF or TA - =8 years Exclusion Criteria: One or more of the following inclusion criteria: - All class IIa indications for a branch PA intervention: - Persistent decreased RV function (based on gold standard CMR) - <18 years RVEF =55% (28) - =18 years RVEF<50% (29) - Progressive tricuspid regurgitation (TR) (=moderate) - Isolated bifurcation stenosis: - Significant unilateral stenosis (=50%) - Borderline bilateral PA stenosis (40-70%) - Unbalanced perfusion (=35/65%) - RV/LV pressure ratio > 2/3 based on echocardiography - Reduced lung perfusion or decreased objective exercise capacity (based of gold standard VO2 max during CPET) - <18 years VO2 peak <35 mL·kg-1·min-1 (boys) VO2 peak <30 mL·kg-1·min-1 (girls) (30) - =18 years VO2 peak <27 mL·kg-1·min-1 (men) VO2 peak <19 mL·kg-1·min-1 (women) (31) |
Country | Name | City | State |
---|---|---|---|
Netherlands | Amsterdam University Medical Center location AMC | Amsterdam | |
Netherlands | Leiden University Medical Center | Leiden | |
Netherlands | Erasmus Medical Center | Rotterdam | |
Netherlands | UMC Utrecht/WKZ | Utrecht |
Lead Sponsor | Collaborator |
---|---|
UMC Utrecht | Amsterdam University Medical Centers (UMC), Location Academic Medical Center (AMC), Dutch Heart Foundation, Erasmus Medical Center, Hartekind, Leiden University Medical Center |
Netherlands,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change from baseline VO2max as percentage of predicted at 6 months as indication of exercise capacity | using cardiopulmonary exercise test on a treadmill | change between baseline and 6 months follow-up | |
Secondary | Technical success using invasive right ventricular and pulmonary artery pressures and gradients | Technical success of the intervention using invasive right ventricular and pulmonary artery pressures and gradients | after the intervention, an average of 1 month after baseline | |
Secondary | Peak workload (W) | using cardiopulmonary exercise test on a treadmill | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | Peak workload (% predicted) | using cardiopulmonary exercise test on a treadmill | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | O2 pulse (ml) | using cardiopulmonary exercise test on a treadmill | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | O2 pulse (% predicted) | using cardiopulmonary exercise test on a treadmill | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | VE/VCO2 slope | using cardiopulmonary exercise test on a treadmill | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | Right ventricular ejection fraction (%) | using CMR | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | RV strain (%) | using speckle tracking echocardiography and CMR feature tracking | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | RV fractional area change (%) | using echocardiography | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | RV pressure (mmHg) | using echocardiography (TI gradient) | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | RV end-systolic elastance | using pressure-volume analysis | before and after the intervention, an average of 1 month after baseline | |
Secondary | RV end systolic volume (ml and ml/m2) | using CMR | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | RV end diastolic volume (ml and ml/m2) | using CMR | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | RV functional reserve | RVEF dobutamine - RVEF rest using a low dose dobutamine stress MRI | at baseline and 6 months follow-up in the interventional group from UMC Utrecht and Erasmus MC | |
Secondary | RV mass (g and g/m2) | using CMR | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | Right ventricular pulmonary arterial (RV-PA) coupling | using pressure-volume analysis | before and after the intervention, an average of 1 month after baseline | |
Secondary | Lung perfusion (%) | using CMR | at baseline, 6 months follow-up and 2-4 years follow-up | |
Secondary | Quality of Life (QoL) in 4 domains: health and related activities, emotional, social and school/work | using PedsQL questionnaire | at baseline and 2 weeks follow-up |
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