International registry for spontaneous coronary artery dissection

The International Spontaneous Coronary Artery Dissection "iSCAD" Registry (SCAD)

Observational SCAD Alliance · NCT04496687

This study is creating a global database to learn more about spontaneous coronary artery dissection (SCAD) and help improve care for people who have it.

Quick facts

Study typeObservational
Enrollment1000 (estimated)
Ages18 Years and up
SexAll
SponsorSCAD Alliance Academic / other
Locations31 sites (Los Angeles, California and 30 other locations)
Trial IDNCT04496687 on ClinicalTrials.gov

What this trial studies

The iSCAD Registry aims to create an international, multicenter database to enhance understanding of spontaneous coronary artery dissection (SCAD), a condition that can lead to serious cardiac events. This observational study will collect both prospective and retrospective clinical data from participants diagnosed with SCAD to analyze its natural history and prognosis. By increasing participant recruitment and statistical power, the registry seeks to develop best practices and clinical guidelines for preventing SCAD and its recurrence.

Who should consider this trial

Good fit: Ideal candidates include individuals aged 18 and older with a new diagnosis or history of spontaneous coronary artery dissection confirmed by coronary angiography.

Not a fit: Patients with coronary dissection due to atherosclerosis or iatrogenic injury will not benefit from this study.

Why it matters

Potential benefit: If successful, this registry could lead to improved prevention strategies and treatment guidelines for patients suffering from SCAD.

How similar studies have performed: While SCAD is an under-researched area, the collaborative approach of this registry may build on previous observational studies, though it is largely novel in its comprehensive international scope.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Participants with a new diagnosis of SCAD or a history of confirmed or suspected SCAD will be prospectively recruited from either:

1. Inpatient wards of the enrolling medical centers during the acute presentation of SCAD, or
2. Outpatient cardiovascular clinics of enrolling medical centers.

Participants must be:

* 18 years of age or older
* Diagnosis of SCAD or history of SCAD based on coronary angiography, either catheter-based or coronary CTA
* Suspected SCAD by coronary angiography

Exclusion Criteria:

1. Coronary dissection in association with atherosclerosis or as a result of iatrogenic injury
2. Inability to provide informed consent
3. Inability to complete study-related patient questionnaires
4. Inability to understand and complete patient questionnaires independently

Where this trial is running

Los Angeles, California and 30 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Spontaneous Coronary Artery Dissectionspontaneous coronary artery dissectionmyocardial infarctionsudden cardiac arrestacute coronary syndrome
Last reviewed 2026-06-13 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.