Prospective, physician-initiated, multicenter, randomized, single-blind, controlled trial. Participants will be randomized (1:1) to a DCB-enhanced strategy (study group) or a conventional strategy (control group). The study aims to compare the clinical outcomes of conventional provisional stenting (Angiolite in the main branch, with optional side branch stenting if compromised) versus DCB enhanced provisional stenting (Angiolite in the main branch plus Essential Pro in the side branch) in patients with complex left main bifurcation stenosis indicated to receive non-urgent percutaneous coronary intervention (PCI). Target lesions, both main vessel and side branch, will be treated using iVascular devices, with patients randomized into two arms. In one arm, treatment will be performed exclusively with the Angiolite sirolimus-eluting stent (Angiolite, iVascular) in the main vessel, while in the other arm, the Angiolite will be used in the main vessel and the Essential Pro paclitaxel drug-eluting balloon (Essential Pro, iVascular) in the side branch. Non-target lesions may be treated with any commercially available devices according to their approved indications.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
186
Conventional Provisional Stenting
Drug-Coated Balloon
Angiography-based late lumen loss
Angiography-based late lumen loss at the level of treated side-branch (primarily not stented branch)
Time frame: 12 months post procedure
2. Late lumen loss
Late lumen loss at the level of proximal- and distal main branch (primarily stented branch)
Time frame: at 12 months post procedure
Stent thrombosis rate
Stent thrombosis rate (acute, subacute, late) at 12 months.
Time frame: at 12 months post procedure
Optical coherence tomography (OCT)-based minimal stent / lumen area
Optical coherence tomography (OCT)-based minimal stent / lumen area at the level of LM, LAD ostium and left circumflex (LCx) ostium at 12 months.
Time frame: at 12 months post procedure
OCT-based area stenosis
OCT-based area stenosis at the level of LM, LAD ostium and LCx ostium
Time frame: at 12 months post procedure
Acute lumen gain (2D)
Acute lumen gain based on 2D quantitative coronary angiography
Time frame: at index procedure
Acute lumen gain (3D)
Acute lumen gain based on 3D quantitative coronary angiography
Time frame: at index procedure
Acute functional result
Acute functional result in the LAD and in the LCx, defined by Murray law-based quantitative flow ratio (μQFR)
Time frame: at index procedure
Functional result in the LAD and in the LCx
Functional result in the LAD and in the LCx, defined by μQFR
Time frame: at 12 months post procedure
Delta μQFR in the LAD and in the LCx
Delta μQFR in the LAD and in the LCx between acute (index procedure) and 12 months follow-up
Time frame: at index procedure and at12 months post procedure
Malposition rate
Malapposition rate by OCT
Time frame: at 12 months post procedure
Underexpansion rate
Underexpansion rate by OCT
Time frame: at 12 months post procedure
Diameter stenosis
Diameter stenosis based on quantitative coronary angiography at the level of LM, LAD ostium and LCx ostium
Time frame: at 12 months post procedure
Area stenosis
Area stenosis based on 3D quantitative coronary angiography at the level of LM, LAD ostium and LCx ostium
Time frame: at 12 months post procedure
Conversion rate
Conversion rate to double-stent technique
Time frame: at index procedure
Procedure time
Duration of index procedure
Time frame: at index procedure
Used contrast media
Used contrast media at index procedure
Time frame: at index procedure
Radiation dose
Radiation dose at index procedure
Time frame: at index procedure
Composite of death, myocardial infarction, target vessel revascularization, hospitalization for heart failure
Composite of death, myocardial infarction, target vessel revascularization, hospitalization for heart failure
Time frame: at 6 months and 12 months pos procedure
Death
Death upon 12 months
Time frame: from index procedure to 12 months post procedure
Myocardial Infarction
Myocardial Infarction upon 12 months.
Time frame: from index procedure to 12 months post procedure
Target vessel revascularization
Target vessel revascularization upon 12 months.
Time frame: from index procedure to 12 months post procedure
Hospitalization for heart failure
Hospitalization for heart failure upon 12 months.
Time frame: from index procedure to 12 months post procedure
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