Ireland
--:--IST
Recruiting Not applicable

Antegrade Dissection and Re-entry Versus Retrograde Strategy in CTO PCI

NCT06878729 · tracked via the Priya Life Science Poland tracker
Phase
Not applicable
Started
2025-07-28
Last updated
2026-01-02

Condition(s) studied

Coronary Artery DiseaseCoronary OcclusionPercutaneous Coronary Intervention

Investigational drug(s) / intervention(s)

CTO PCI using ADR strategyCTO PCI using retrograde strategy

CTO PCI using ADR strategy: CTO recanalization using ADR performed as primary or secondary CTO PCI strategy (i.e. in case of unattempted or failed antegrade wiring, respectively).

CTO PCI using retrograde strategy: CTO recanalization using retrograde approach performed as primary or secondary CTO PCI strategy (i.e. in case of unattempted or failed antegrade wiring, respectively).

Study summary

The ADRENALINE trial has been designed as a multi-center, prospective randomized study to compare the procedural and periprocedural outcomes of coronary chronic total occlusion (CTO) percutaneous coronary intervention (PCI) using antegrade dissection and re-entry (ADR) versus retrograde strategy. Beyond the patient-oriented outcomes, the influence of the studied CTO PCI strategies on the stress levels among interventional cardiologists will be explored.

The main questions it aims to answer are as follows:

* What is the difference between ADR versus retrograde strategy with regard to total procedure time, the rates of successful guidewire crossing and periprocedural complications as well as stress levels experienced by interventional cardiologists?
* Is retrograde approach associated with higher rates of myocardial injury/infarction based on cardiac troponin/cardiac magnetic resonance (CMR) as compared with ADR?

Participants will undergo pre- and postprocedural laboratory testing (cardiac troponin, CK-MB), CMR for late gadolinium enhancement and health status assessment. Subjects undergoing successful CTO PCI using antegrade wiring strategy will be included in the observational arm.

Eligibility

Sex
ALL
Min age
18 Years
Max age
—
Healthy volunteers
No
Inclusion Criteria: * clinical indication for CTO PCI as determined by the local heart team (presence of angina or equivalent symptoms and/or documented ischemia or viability) * at least difficult native CTO lesion with J-CTO difficulty score ≥2 points on invasive angiography * angiographic suitability for both ADR and the retrograde strategy as assessed by 2 independent hybrid CTO PCI operators * informed consent for participation in the study Exclusion Criteria: * \<18 years of age * acute myocardial infarction * cardiogenic shock * severe valvular disease * estimated life expectancy \<1 year * contraindication to PCI * contrast allergy * positive pregnancy test or breast-feeding * native CTO lesion with easy or intermediate difficulty score on invasive angiography (J-CTO score \<2 points) * lack of angiographic equipoise between the ADR and the retrograde strategy as assessed by 2 independent hybrid CTO PCI operators

Primary outcome measure(s)

  • Total procedure time — procedural (1 day)
    Total procedure time in minutes.
  • Successful guidewire crossing through CTO — procedural (1 day)
    Rate of successful guidewire crossing through CTO.

Trial sites (3)

FacilityCityRegionStatus
National Institute of Cardiology Warsaw Warsaw Recruiting
1st Military Clinical Hospital Lublin Poland Recruiting
Hospital of the Ministry of the Interior and Administration Lublin Poland Recruiting
Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT06878729 on ClinicalTrials.gov ↗ ← All trials in Poland