Harmonizing Optimal Strategy for Treatment of Coronary Artery Stenosis- CloPidogREl for Primary preVENTION (HOST-PREVENTION)
Efficacy and Safety of Clopidogrel for Primary Prevention in Patients With Subclinical Coronary Atherosclerosis Identified on Imaging
1 other identifier
interventional
11,086
1 country
61
Brief Summary
The investigators will evaluate the efficacy and safety of clopidogrel for primary prevention in patients diagnosed with coronary atherosclerosis on imaging that did not require revascularization therapy. The trial will test the hypothesis that clopidogrel is beneficial in preventing major adverse cardiovascular and cerebrovascular events (MACCE) in patients with subclinical coronary atherosclerosis identified on imaging.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4 coronary-artery-disease
Started Mar 2023
Longer than P75 for phase_4 coronary-artery-disease
61 active sites
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 Start
First participant enrolled
March 22, 2023
CompletedFirst Submitted
Initial submission to the registry
April 25, 2023
CompletedFirst Posted
Study publicly available on registry
May 6, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2031
December 31, 2025
December 1, 2025
5.8 years
April 25, 2023
December 28, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Major adverse cardiovascular and cerebrovascular events (MACCE)
A composite of all-cause death, non-fatal myocardial infarction, any coronary revascularization, ischemic stroke, or transient ischemic attack
at 2 years after the last enrollment
Secondary Outcomes (11)
Major adverse cardiovascular and cerebrovascular events (MACCE)
at 5 years after the last enrollment
Net adverse clinical event
at 2 years and 5 years after the last enrollment
All-cause death
at 2 years and 5 years after the last enrollment
Non-fatal myocardial infarction
at 2 years and 5 years after the last enrollment
Any coronary revascularization
at 2 years and 5 years after the last enrollment
- +6 more secondary outcomes
Study Arms (2)
Clopidogrel treatment group
EXPERIMENTALPatients assigned to the clopidogrel treatment group will maintain clopidogrel 75mg once a day for at least 5 years.
No antiplatelet or anticoagulant group
ACTIVE COMPARATORPatients assigned to the no antiplatelet or anticoagulant group will not prescribe antithrombotics for at least 5 years. However, when there is a medical need for antithrombotic therapy during the follow-up, the prescription of antithrombotics is permitted with reporting to the research board.
Interventions
Patients assigned to the clopidogrel treatment group will maintain clopidogrel 75mg once a day for at least 5 years.
Patients assigned to the no antiplatelet or anticoagulant group will not prescribe antithrombotics for at least 5 years. However, when there is a medical need for antithrombotic therapy during the follow-up, the prescription of antithrombotics is permitted with reporting to the research board.
Eligibility Criteria
You may qualify if:
- Male or female aged ≥40 years
- Patients with subclinical coronary atherosclerosis identified from coronary CT angiography or coronary angiography within 2 years without clinical events after an imaging study
- Without significant coronary artery stenosis (Diameter stenosis \>50%), which needs revascularization
- Agreement to give written informed consent
You may not qualify if:
- A history of a diagnosed cardiovascular or cerebrovascular disease (Type1 myocardial infarction, heart failure, peripheral artery disease, stroke, transient ischemic attack, carotid artery stenosis\>50%, carotid artery intervention)
- A history of coronary artery intervention or coronary artery bypass graft surgery, which needs chronic maintenance of antiplatelet therapy
- Absolute contraindication or allergy to clopidogrel
- Patients receiving anticoagulants for other comorbidities
- A history of Bleeding diathesis, known coagulopathy, or major bleeding, BARC class ≥3, resulting in the stop of antiplatelet agents
- Planned surgery or intervention which needs to stop antiplatelet agents ≥1 month
- Presence of non-cardiac comorbidity with life expectancy ≤ 5 years at randomization
- Females with pregnancy or breast-feeding
- Patients who are thought to be inappropriate for the trial based on physicians' decision
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Seoul National University Hospitallead
- Hanmi Pharmaceutical co., ltd.collaborator
- Yuhan Pharmaceutical Companycollaborator
- Daewoong Pharmaceutical Co. LTD.collaborator
- Dong-A ST Co., Ltd.collaborator
- IlDong Pharmaceutical Co Ltdcollaborator
- Samjin Pharmaceutical Co., Ltd.collaborator
- CKD Pharmaceutical Limitedcollaborator
Study Sites (61)
Seoul National University Hospital
Seoul, Other, 03080, South Korea
Andong Hospital
Andong, South Korea
Dong-A University Hospital
Busan, South Korea
Inje University Busan Paik Hospital
Busan, South Korea
Kosin University Gospel Hospital
Busan, South Korea
Pusan National University Hospital
Busan, South Korea
Gyeongsang National University Changwon Hospital
Changwon, South Korea
Soonchunhyang University Cheonan Hospital
Cheonan, South Korea
Soonchunhyang University Cheonan Hospital
Cheonan, South Korea
Soonchunhyang University Cheonan Hospital
Cheonan, South Korea
Chungbuk National University Hospital
Cheongju-si, South Korea
Hallym University Chuncheon Sacred Heart Hospital
Chuncheon, South Korea
Kangwon National University Hospital
Chuncheon, South Korea
Kangwon National University Hospital
Chuncheon, South Korea
Keimyung University Dongsan Hospital
Daegu, South Korea
Yeungnam University Medical Center
Daegu, South Korea
Chungnam National University Hospital
Daejeon, South Korea
Eulji University Hospital, Daejeon
Daejeon, South Korea
Gangneung Asan Hospital
Gangneung, South Korea
Chonnam National University Hospital
Gwangju, South Korea
Chonnam National University Hospital
Gwangju, South Korea
Kwangju Christian Hospital
Gwangju, South Korea
Chung-Ang University Gwangmyeong Hospital
Gyeonggi-do, South Korea
Eulji University Hospital, Uijeongbu
Gyeonggi-do, South Korea
Hallym University Dongtan Sacred Heart Hospital
Gyeonggi-do, South Korea
Hallym University Sacred Heart Hospital
Gyeonggi-do, South Korea
Inje University Ilsan Paik Hospital
Gyeonggi-do, South Korea
Myongji Hospital
Gyeonggi-do, South Korea
National Health Insurance Service Ilsan Hospital
Gyeonggi-do, South Korea
Sejong General Hospital, Bucheon
Gyeonggi-do, South Korea
Soonchunhyang University Bucheon Hospital
Gyeonggi-do, South Korea
Yonsei University Yongin Severance Hospital
Gyeonggi-do, South Korea
Chonnam National University Hwasun Hospital
Hwasun, South Korea
Catholic Kwandong University International St. Mary's Hospital
Incheon, South Korea
Gachon University Gil Medical Center
Incheon, South Korea
Jeju National University Hospital
Jeju City, South Korea
Jesus Hospital, Jeonju
Jeonju, South Korea
Gyeongsang National University Hospital
Jinju, South Korea
Pohang Stroke And Spine Hospital
Pohang, South Korea
Chungnam National University Sejong Hospital
Sejong, South Korea
Chung-Ang University Hospital
Seoul, South Korea
Chung-Ang University Hospital
Seoul, South Korea
Ewha Womans University Seoul Hospital
Seoul, South Korea
Ewha Womans University Seoul Hospital
Seoul, South Korea
Hallym University Kangdong Sacred Heart Hospital
Seoul, South Korea
Hallym University Kangdong Sacred Heart Hospital
Seoul, South Korea
Hallym University Kangnam Sacred Heart Hospital
Seoul, South Korea
Hanyang University Hospital
Seoul, South Korea
Inje University Sanggye Paik Hospital
Seoul, South Korea
Kangbuk Samsung Hospital
Seoul, South Korea
Korea University Anam Hospital
Seoul, South Korea
Korea University Guro Hospital
Seoul, South Korea
Kyung Hee University Hospital
Seoul, South Korea
Samsung Medical Center
Seoul, South Korea
Seoul Medical Center
Seoul, South Korea
Seoul Metropolitan Government - Seoul National University Boramae Medical Center
Seoul, South Korea
Soonchunhyang University Seoul Hospital
Seoul, South Korea
Veterans Health Service Medical Center
Seoul, South Korea
Yonsei University Gangnam Severance Hospital
Seoul, South Korea
Ulsan University Hospital
Ulsan, South Korea
Yonsei University Wonju Severance Christian Hospital
Wŏnju, South Korea
Related Publications (14)
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PMID: 21757164BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Hyo-Soo Kim, MD, PhD
Seoul National University Hospital
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
April 25, 2023
First Posted
May 6, 2023
Study Start
March 22, 2023
Primary Completion (Estimated)
December 31, 2028
Study Completion (Estimated)
December 31, 2031
Last Updated
December 31, 2025
Record last verified: 2025-12
Data Sharing
- IPD Sharing
- Will not share