NCT03667196

Brief Summary

Objective of this study is to 1) analyze the clinical, anatomical and periprocedural differences of patients who underwent a procedure related to coronary CTO through the antergrade approach and retrograde approach; 2) analyze the success rate of the procedures and the incidence and patterns of complications; 3) compare and analyze long-term performances after the successful procedure; and 4) identify the independent factors that require a retrograde approach and the prognostic factor regarding long-term performances after use of each approach.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
4,000

participants targeted

Target at P75+ for all trials

Timeline
20mo left

Started Jan 2018

Longer than P75 for all trials

Geographic Reach
1 country

32 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress83%
Jan 2018Dec 2027

Study Start

First participant enrolled

January 11, 2018

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

September 10, 2018

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 12, 2018

Completed
9.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

December 27, 2024

Status Verified

December 1, 2024

Enrollment Period

10 years

First QC Date

September 10, 2018

Last Update Submit

December 23, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • Death

    Death

    12-month after PCI

  • myocardial infarction

    the periprocedural myocardial infarction under the SCAI definition or the non-lethal myocardial infarction during the follow-up observations

    12-month after PCI

  • the complex endpoints of target vessel revascularization/reocclusion occurrence

    including chronic total occlusion and angiostenosis

    12-month after PCI

Secondary Outcomes (2)

  • Procedure success rate

    every 1-year up-to 5-year

  • Myocardial infarction

    every 1-year up-to 5-year

Study Arms (1)

Observational

Procedure: antegrade and retrograde approach

Interventions

This study intends to identify and compare the clinical, anatomical and periprocedural factors of the patients who used only the antergrade approach and the patients who needed the retrograde approach among the patients with coronary CTO

Observational

Eligibility Criteria

Age19 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Subject selection will be determined after screening patients who undergo PCI for CTO lesions and completing the evaluation of all inclusion/exclusion criteria.

You may qualify if:

  • Patients aged\>=19
  • Patients who have a CTO lesion in at least one or more epicardial coronary artery 2.5 mm in blood vessel diameter
  • Patients who have symptoms of angina or objectively proven myocardial ischemia (asymptomatic myocardial ischemia, stable or unstable angina, non - -ST-segment elevation myocardial infarction)
  • Patients who voluntarily agreed to the protocol and the clinical follow-up plan (or let their representative do this), and signed the informed consent form approved by the IRB of each study institute

You may not qualify if:

  • Patients who are pregnant or lactating or have childbearing potential Patients in whom contrast medium and heparin are contraindicated or who are hypersensitive to them
  • Patients in whom aspirin, clopidogrel, ticagrelor and prasugrel, cilostazol are contraindicated
  • Patients scheduled to undergo a surgery, etc. that requires discontinuance of an antiplatelet drug within 12 months after participation in the study
  • Acute ST elevation myocardial infarction at the time of hospitalization
  • Terminally ill patients with their life expectancy \< one year
  • Patients who have serious diseases other than cardiac diseases that may affect limitation of residual life time or observation of the protocol (e.g. oxygen-independent chronic obstructive pulmonary disease, persisting hepatitis or serious hepatic insufficiency, severe renal disease, etc. Be left up to the discretion of the investigator.)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (32)

Hallym University Sacred Heart Hospital

Anyang, South Korea

RECRUITING

SoonChunHyang University Hospital Bucheon

Bucheon-si, South Korea

RECRUITING

Gyeongsang National University Changwon Hospital

Changwon, South Korea

RECRUITING

Chungbuk National University Hospital

Cheongju-si, South Korea

RECRUITING

Gangwon National University Hospital

Chuncheon, South Korea

RECRUITING

Keimyung University Dongsan Medical Center

Daegu, South Korea

RECRUITING

Yeungnam University Medical Center

Daegu, South Korea

RECRUITING

Chungnam National University Hospital

Daejeon, South Korea

RECRUITING

the Catholic University of Korea, Daejeon St. Mary'S Hospital

Daejeon, South Korea

RECRUITING

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

Daejeon, South Korea

RECRUITING

Gangneung Asan Hospital

Gangneung, South Korea

RECRUITING

Myongji Hospital

Goyang-si, South Korea

RECRUITING

Hanyang University Medical Center

Guri-si, South Korea

RECRUITING

Gwangju Veterans Hospital, Korea Veterans Health Service

Gwangju, South Korea

NOT YET RECRUITING

Chung-Ang University Gwangmyeong Hospital

Gwangmyeong, South Korea

RECRUITING

Seoul national university Bundang hospital

Gyeonggi-do, South Korea

RECRUITING

Inha University Hospital

Incheon, South Korea

RECRUITING

The Catholic University of Korea, Incheon ST. MARY'S Hospital

Incheon, South Korea

RECRUITING

Busan Veterans Hospital, Korea Veterans Health Service

Pusan, South Korea

RECRUITING

Dong-A University Hospital

Pusan, South Korea

RECRUITING

Gosin University Gospel Hospital

Pusan, South Korea

RECRUITING

Inje University Haeundae Paik Hospital

Pusan, South Korea

RECRUITING

Inje University Pusan Paik Hospital

Pusan, South Korea

RECRUITING

Chungnam National University Sejong Hospital

Sejong, South Korea

RECRUITING

Asan Medical Center

Seoul, South Korea

RECRUITING

Kangbuk Samsung Hospital

Seoul, South Korea

RECRUITING

Samsung Medical Center

Seoul, South Korea

RECRUITING

The Catholic University of Korea, Eunpyeong

Seoul, South Korea

RECRUITING

The Catholic University of Seoul St. Mary's Hospital

Seoul, South Korea

RECRUITING

Veterans Hospital Service Medical Center

Seoul, South Korea

RECRUITING

Ulsan University Hospital

Ulsan, South Korea

RECRUITING

Pusan National University Yangsan Hospital

Yangsan, South Korea

RECRUITING

Study Officials

  • Seung-Whan Lee, MD

    Asan Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Seung-Whan Lee, MD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
M.D.

Study Record Dates

First Submitted

September 10, 2018

First Posted

September 12, 2018

Study Start

January 11, 2018

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2027

Last Updated

December 27, 2024

Record last verified: 2024-12

Locations