Role of FFR in ACS Patients: Pressure ACS Registry

Status Active, not recruiting

Clinical Trial Summary

Currently, fractional flow reserve (FFR) is regarded as a gold-standard invasive method to define lesion-specific ischemia and FFR-guided PCI has been proven to reduce unnecessary revascularization and to enhance patient's clinical outcomes. Therefore, current guidelines recommend FFR measurement for intermediate coronary stenosis when there is no definite evidence of lesion-specific ischemia. However, previous evidences which well demonstrated the benefit of FFR-guided strategy were mostly generated from patients with stable coronary artery disease.4 FFR may be overestimated and the hemodynamic relevance of a coronary stenosis underestimated in patients with acute coronary syndrome (ACS).Its role in ACS patients still needs to be defined although several studies have recently published addressing the value of FFR-guided PCI in ACS. In fact, recent evidence suggests that culprit lesions of patients presenting with a non-ST-segment elevation myocardial infarction that were deferred based on a "negative" FFR have a relatively high event rate, calling into question the use of FFR in that patient population.

Clinical Trial Description

STUDY OBJECTIVE 1. To evaluate the impact of FFR on decision for PCI in ACS patients 2. To assess the long term prognosis of deferring PCI based on FFR value in non-culprit lesion; defying the cut-off value of FFR for PCI in the non-culprit lesion of ACS patients 3. To identify the relation between OCT findings and FFR value in culprit and non-culprit lesions of ACS patients 4. To compare the long term prognosis of PCI or deferring PCI based on FFR value in non-culprit lesion of ACS patients 5. To identify OCT findings to predict the lesion progression in deferred lesions. 6. To assess the long term prognosis of post-PCI FFR value in the culprit lesion of NSTE-ACS patients 7. To assess the efficacy of routine use of FFR to guide PCI in ACS patients; angiographically guidance versus FFR guidance ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05896501
Study type	Observational
Source	The Catholic University of Korea
Contact
Status	Active, not recruiting
Phase
Start date	January 1, 2020
Completion date	June 30, 2025

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.