About this trial
The IMAGINATION trial is an investigator-initiated, prospective, single-center study of symptomatic patients with a native chronic total occlusion (CTO) undergoing intravascular ultrasound (IVUS)-guided percutaneous coronary intervention (PCI) with a drug-coated balloon (DCB). Post-PCI IVUS and fractional flow reserve (FFR) at baseline and at 6-months follow-up will be performed. In addition, patients included in the coronary computed tomography angiography (CCTA) substudy will undergo CCTA at 12-months follow-up. The aim of this study is to evaluate the efficacy and safety of DCB-only approach in native coronary CTO.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
clinical indication for CTO PCI as determined by the local heart team (presence of angina or equivalent symptoms and/or documented ischemia or viability)
native CTO lesion as defined by invasive coronary angiography
informed consent for participation in the study
Disqualifiers
<18 years of age
myocardial infarction
cardiogenic shock
severe valvular disease
Trial design
Single group
Treatments tested in this trial
Paclitaxel Drug-coated balloon
DevicePercutaneous coronary intervention of the actual CTO body with a paclitaxel drug-coated balloon.
Treatment groups
Trial outcomes
Primary outcomes
In-segment late lumen loss
The difference by subtracting the minimal lumen diameter (MLD) at follow-up from the MLD postprocedure. In-segment equals DCB plus the proximal and distal 5-mm margins.
Secondary outcomes
Angiographic outcomes assessed directly post-PCI
* minimum lumen diameter (mm) * residual diameter stenosis (%) * the rate of bail-out stenting after DCB use (%)
HD-IVUS outcomes assessed directly post-PCI
* minimal lumen diameter (mm) * minimal lumen area (mm2) * maximum plaque burden (%)
Physiologic outcomes assessed directly post-PCI
* the ratio of pd/pa * cRR (absolute values) * FFR (absolute values)
Angiographic outcomes at 6-months follow-up
* minimum lumen diameter (mm) * residual diameter stenosis (%) * in-segment binary restenosis (≥50% diameter stenosis) * the rate of target vessel re-occlusion (yes/no)
Sponsors and contacts
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