Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 20 and up

Evaluating aspirin's effectiveness in patients with chronic coronary syndromes who can't undergo revascularization

Official title: Efficacy and Safety of Aspirin in Patients With Chronic Coronary Syndromes Without Revascularization

Run by Kyoto University, Graduate School of Medicine · NCT05347069 · Data updated 2026-11-12

This study is testing whether aspirin can help people with chronic coronary syndromes who can't have surgery to improve their heart health.

More Coronary Artery Disease trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages20 Years and up
SexAll
Enrollment2890 (estimated)
SponsorKyoto University, Graduate School of Medicine
Academic / other
Locations1 site (Kyoto)
StatusRecruiting
StartedJune 14, 2022
Main results expectedMarch 2030
Study endsDecember 2030
Registry record updatedMarch 11, 2025
Trial IDNCT05347069 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are patients with chronic coronary syndromes who have significant coronary artery stenosis but are not eligible for revascularization.

Probably not a fit

Patients who have a history of acute coronary syndromes or those who are already on mandatory antithrombotic therapy other than aspirin may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to assess the efficacy and safety of aspirin in patients diagnosed with chronic coronary syndromes who are not candidates for revascularization procedures. It is a multicenter, randomized, open-label trial that will compare outcomes between patients receiving aspirin and those not receiving it. The study addresses a gap in current knowledge regarding the use of aspirin for secondary prevention in this specific patient population, as previous research has primarily focused on other groups. By evaluating the impact of aspirin on cardiovascular events and safety in these patients, the study seeks to provide valuable insights into its potential benefits.

Why it matters

Potential benefit: If successful, this study could provide evidence for the use of aspirin as a preventive treatment in patients with chronic coronary syndromes, potentially improving their cardiovascular outcomes.

How similar studies have gone: While aspirin has been established for acute coronary syndromes, this specific approach in chronic coronary syndromes without revascularization is novel and has not been extensively tested in previous studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with chronic coronary syndromes with ≧50% diameter stenosis in one or more major coronary vessels/major branches on coronary CT or coronary angiography but not eligible for coronary revascularization
* Patients for whom consent can be obtained

Exclusion Criteria:

* Patients with history of acute coronary syndromes (ACS)
* Patients with history of percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG)
* Patients with left main trunk stenosis (≥50%)
* Patients for whom aspirin administration is mandatory
* Patients undergoing antithrombotic therapy other than aspirin
* Patients with atrial fibrillation
* Patients with history of stroke within six months
* Patients scheduled for major surgical procedures that will require aspirin discontinuation
* Patients with contraindication of aspirin
* Patients expected to have a prognosis of 1 year or less due to comorbidities
* Women of child-bearing potential or women who have a positive pregnancy test at enrolment or randomization
* Patients who are judged by attending physicians to be inappropriate to participate in this study

Where it's running

  • Kyoto University Hospital
    Kyoto, Japan
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.