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Clinical Impact on Fractional Flow Reserve in Chronic Total Occlusion-Percutaneous Coronary Intervention; A Multicenter, Prospective Study

Clinical Impact on Fractional Flow Reserve in Chronic Total Occlusion-Percutaneous Coronary Intervention; A Multicenter, Prospective Study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
CRIS
Registry ID
KCT0005503
Enrollment
100
Registered
2020-10-20
Start date
2021-04-06
Completion date
Unknown
Last updated
2024-03-04

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

Conditions

None listed

Interventions

Procedure/Surgery : This study is a non-randomized, prospective, open-label registry study for measuring the FFR of the donor feeding vessels in patients with coronary artery CTO lesions, and waiting

Sponsors

The Catholic University of Korea, St. Vincent's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Nineteen years old or older, with coronary artery CTO lesions, and waiting for revascularization treatment 2. Must agree (personally or through his/her legal guardian) with the study protocol and the clinical follow-up schedules, and must sign the informed-consent form voluntarily (This study can proceed after its approval from the IRB of each center.) 3. With a coronary artery CTO lesion on the left anterior descending artery or the right coronary artery

Exclusion criteria

Exclusion criteria: 1. Currently pregnant or breastfeeding or with a possibility of such 2. Contraindicated or hypersensitive to the contrast agent or heparin 3. Contraindicated to aspirin, clopidogrel, cilostazol, ticagrelor, or prasugrel 4. Scheduled to undergo operation, etc. requiring antiplatelet drugs to be stopped within 12 months from participation in the study 5. Has had MI with an acute ST fragment rise 6. Has a terminal disease, with a remaining life expectancy of less than 1 year 7. Has a serious disease that can limit the remaining life expectancy or compliance with the study protocol (e.g. oxygen-dependent COPD, active hepatitis, severe liver failure, severe renal disease, or others believed by the investigator to applicable)

Design outcomes

Secondary

MeasureTime frame
The occurrence of each of the following events 12 months after the coronary intervention: - any death- cardiac death- MI- a combination of death and MI- a combination of cardiac death and MI- death, MI, or revascularization of the target vessel- a combination of death, MI, and revascularization of the target vessel- a combination of death, MI, and revascularization of the target lesion- a combination of cardiac death, MI, and revascularization of the target lesion- TVR- TLR- stent thrombosis- a successful treatment outcome (based on visual evaluation via angiography, the stenosis rate of the inner diameter is less than 30%, and there was no death or Q-wave MI or urgent revascularization during the hospitalization period)- changes in the IMR of the CTO lesions- changes in the IMR values of the main retrograde donor feeding artery

Primary

MeasureTime frame
1.The changes in the FFR of the CTO lesions at the baseline and immediately upon and 12 (+/- 2) months after the coronary intervention for the CTO lesion;2.The changes in the FFR in the main retrograde donor feeding vessel immediately upon and 12 (+/-2) months after the coronary intervention for the CTO lesion

Countries

Korea, Republic of

Contacts

Public ContactSUNG- HO HER

The Catholic University of Korea, St. Vincent's Hospital

hhhsungho@naver.com+82-31-249-7548

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Feb 4, 2026