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Instantaneous Wave-free Ratio Guidance Strategy Evaluation in the Treatment of Multivessel Acute Coronary Syndrome.

Characterization of Coronary Artery Hemodynamic Measurements and Virtual Angioplasty Planning by Instantaneous Wave-free Ratio (iFR) in Multivessel Acute Coronary Syndrome Patients With Evaluation of the Impact on Clinical Outcomes.

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05006183
Acronym
iStrategy
Enrollment
150
Registered
2021-08-16
Start date
2019-08-08
Completion date
2024-09-30
Last updated
2022-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Coronary Syndrome, Cardiac Ischemia

Keywords

iFR, Instantaneous wave free ratio, virtual percutaneous coronary intervention, Acute coronary syndrome, Multivessel

Brief summary

A single-center, prospective, randomized, open-label, blinded end-point clinical trial of instantaneous wave-free ratio (iFR) guidance strategy impact on clinical outcomes in multivessel acute coronary syndrome (ACS) patients.

Detailed description

The all-comers study population consists of hemodynamically stable de novo ACS patients with a stenosis of 50% and more by visual estimation in at least two separate coronary arteries with Thrombolysis in Myocardial Infarction (TIMI) flow ≥ 2 and willing to sign a patient informed consent. ACS diagnosis established by angina pectoris symptoms and/or ECG changes and/or hs-troponin I levels. The use of drug-eluting stents is mandatory in both treatment groups. In the intervention strategy group, patients are treated by the iFR-guided percutaneous coronary intervention (PCI) in one stage. In the control group, patients are treated in accordance with the standard practice of angiography-guided staged approach.

Interventions

PROCEDUREPCI

Percutaneous coronary intervention with Drug-Eluting Stents

Sponsors

Riga Stradins University
CollaboratorOTHER
Daugavpils Regional Hospital
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 18 years of age and older * willing to give informed consent * hemodynamically stable de novo acute coronary syndrome patients with a stenosis of 50% and more by visual estimation in at least two separate coronary arteries * adequate coronary flow, Thrombolysis in Myocardial Infarction (TIMI) flow ≥ 2 * sinus rhythm

Exclusion criteria

* inability to give consent; * younger than 18 years of age * atrial fibrillation rhythm at the time of inclusion * with significant valve disease * in cardiogenic shock * with reduced kidney function - eGFR \< 30 (mL/min/1.73m2); * with congenital heart defects * with acute pulmonary artery embolism; * with isolated left main ostial stenosis; * on active oncologic treatment or toxic cardiomyopathy; * revascularization by PCI is not possible due to other comorbidities or patient denial of treatment.

Design outcomes

Primary

MeasureTime frameDescription
PCI-related Major adverse cardiac events (MACE)Index admissionComposite of cardiac death, non-fatal myocardial infarction, unplanned revascularization, stent thrombosis, flow limiting coronary dissections, no-reflow phenomenon, coronary perforations, coronary distal embolization, vascular access site complications requiring blood transfusion or surgical intervention and contrast-induced nephropathy requiring hospitalisation.

Secondary

MeasureTime frameDescription
Segmental myocardial deformation by speckle-tracking echocardiographyIndex admission, 3 months and 12 monthsChange of segmental myocardial deformation
Health-related Quality of LifeIndex admission, 3 months and 12 monthsChange in health-related quality of life measured using the EQ-5D-5L questionnaire
Number of Participants with Decline of eGFRIndex admission, 3 months and 12 monthsNumber of participants with decline of eGFR 30% and more in comparison to the first eGFR

Countries

Latvia

Contacts

Primary ContactDeniss Vasiljevs, MD
d.vasiljevs@siadrs.lv+37165440858

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026