Plain-English translation of NCT05250557 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Coronary Artery Disease research guide →Doctors sometimes place small tubes called stents in narrowed heart arteries to improve blood flow. This study uses a special measurement called fractional flow reserve to check blood flow before and after stent placement. Researchers want to understand how these measurements can predict which patients are more likely to have heart problems in the future.
Right now, doctors measure blood flow before placing a stent, but rarely measure it afterward. This trial aims to prove that measuring blood flow after the stent is placed can help doctors better understand who is at risk for future heart attacks or other complications.
You likely qualify if…
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If you qualify, you will be part of one of two groups: either you will defer (skip) stent placement and be monitored, or you will receive a stent and have blood flow measurements taken before and after the procedure. Researchers will follow your medical information over time to see how the blood flow measurements help predict your outcomes.
AI-generated summary from trial data · Jul 7, 2026 · Not medical advice
South Korea
Seoul National University Hospital
Collaborators
Keimyung University Dongsan Medical Center, Inje University
Enrollment target
~2,429 participants
Started
August 2021
Primary completion
December 2025
This trial's estimated completion date has passed — the record may not be fully up to date.
Age range
20 Years and older
Last updated on clinicaltrials.gov in February 2022.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Bon-Kwon Koo, MD, PhD
Seoul National University Hospital
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.