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NCT07512778Recruiting

IVUS-Guided vs Angiography-Guided PCI in Acute Coronary Syndrome

Clinical Impact of Intravascular Ultrasound-guided vs. Angiography-guided Coronary Stenting in Patients With Acute Coronary Syndrome: Multicenter, Randomized Control Trial (SAINT-IVUS)

Source: ClinicalTrials.gov · Last updated 6 Apr 2026

Brief summary (registry, in English)

Coronary artery disease is associated with substantial morbidity and mortality worldwide. Percutaneous coronary intervention (PCI) is a pivotal procedure for the treatment of coronary artery disease. Although coronary angiography (CA) is the standard imaging modality used for coronary stent implantation, it provides only two-dimensional images of the coronary arteries. Intravascular ultrasound (IVUS) can provide additional information on plaque characteristics and vessel morphology, which may facilitate optimal stent sizing and procedural optimization. However, IVUS requires additional time and cost and may increase procedural complexity. Evidence regarding the clinical benefit of IVUS-guided PCI in patients with acute coronary syndrome (ACS) remains limited. This study is a prospective, multicenter, randomized controlled trial designed to compare IVUS-guided PCI versus angiography-guided PCI in patients with ACS. A total of 1,500 participants will be randomized 1:1 to either the IVUS-guided group or the angiography-guided group. Participants will be recruited from 15 PCI centers in Korea. The primary outcome is target vessel failure at 2 years.

Status (registry)
Recruiting
Study type
Interventional
Enrollment
1500 (estimated)
First submitted
13 Mar 2026
Start date
Mar 2025
Primary completion date
Dec 2030
Lead sponsor
SUK MIN SEO
NCT number
NCT07512778

What you commit to

  • Study type: Interventional
  • Planned participants: 1500
  • From Mar 2025 to the primary completion date, Dec 2030
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • An elective surgical procedure is planned that would necessitate interruption of antiplatelet drugs within 6 m after the procedure.
  • Patients who are actively participating in another drug or device investigational study, which have not completed the primary endpoint follow-up period.
  • Concern for inability of the patient to comply with study procedures and/or follow-up (e.g., alcohol or drug abuse)

Other illness

  • Subject has known hypersensitivity or contraindication to device material and its degradants (everolimus, poly(L-lactide), poly(DL-lactide), lactide, lactic acid) and cobalt, chromium, nickel, platinum, tungsten, acrylic, and fluoro polymers that cannot be adequately premedicated.
  • Absolute contraindications or allergy that cannot be pre-medicated, to iodinated contrast or to antiplatelet drugs, including both aspirin and P2Y12 inhibitors
  • At the time of screening, the subject has a malignancy that is not in remission
  • Non-cardiac co-morbidities with a life expectancy less than 1 year

Lab values

  • Compromised left ventricular dysfunction (LVEF \<30%)

Age

  • Age \>90 years

Other

  • Cardiogenic shock
  • Restenotic lesions
  • Subject belongs to a vulnerable population (per investigator's judgment) or subject unable to read or write
  • Pregnancy

Who the study is looking for

  • Patients 19 years of age or older
  • Patients with unstable angina pectoris, and acute MI including NSTEMI or STEMI.
  • Coronary artery disease defined as \>70% stenosis (reference vessel diameter 2.5 - 5.0 mm based on operator assessment) with identifiable culprit lesion indicated stent implantation
  • All lesions must be suitable for treatment with the Synergy stent system, or other Synergy platform iteration
  • The patient or guardian agrees to the study protocol and the schedule of clinical and angiographic follow-up, and provides informed, written consent, as approved by the appropriate Institutional Review Board/Ethical Committee of the respective clinical site.

Age in the registry: 19 years to 90 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
The Catholic University of Korea, Eunpyeong St. Mary's Hospital
Coordinator of this site? Confirm its status
SeoulSouth KoreaRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.