NCT06069401

Brief Summary

The goal of this clinical trial is to compare non-invasive myocardial perfusion reserve (MRR) to invasively measured MRR in patients suspected for coronary artery disease (CAD). The main question it aims to answer is: • what is the correlation and agreement between non-invasive and invasive MRR. Participants suspected for CAD and referred for invasive coronary angiogram (ICA) will receive a \[15O\]H2O-PET and coronary CT angiography preceding ICA. During ICA, microvascular resistance measurements will be performed using thermodilution.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2024

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 20, 2023

Completed
15 days until next milestone

First Posted

Study publicly available on registry

October 5, 2023

Completed
3 months until next milestone

Study Start

First participant enrolled

January 1, 2024

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2025

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2025

Completed
Last Updated

October 5, 2023

Status Verified

October 1, 2023

Enrollment Period

1 year

First QC Date

September 20, 2023

Last Update Submit

October 4, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • Correlation non-invasive and invasive MRR

    The first primary endpoint will be correlation between non-invasive and invasive MRR, indicated by Pearson/Spearman correlation.

    Immediately after the PET and CT scan (non-invasive MRR) and ICA (invasive MRR)

  • Agreement non-invasive and invasive MRR

    The first primary endpoint will be agreement between non-invasive and invasive MRR, indicated by a Blant-Altman analysis.

    Immediately after the PET and CT scan (non-invasive MRR) and ICA (invasive MRR)

Secondary Outcomes (2)

  • Correlation non-invasive and invasive resting and hyperemic resistance

    Immediately after the PET and CT scan (non-invasive MRR) and ICA (invasive MRR)

  • Agreement non-invasive and invasive resting and hyperemic resistance

    Immediately after the PET and CT scan (non-invasive MRR) and ICA (invasive MRR)

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Chronic coronary syndrome patients without documented coronary artery disease (CAD) referred for ICA will be evaluated for inclusion.

You may qualify if:

  • Referred for ICA because of suspected CAD
  • No documented prior history of CAD
  • Age ≥18 and ≤80 years old

You may not qualify if:

  • Unstable CAD, Non-ST-Elevation Myocardial Infarction (NSTEMI), ST-Elevation Myocardial Infarction (STEMI), cardiogenic shock or hemodynamically unstable patients
  • Patients with previous coronary artery bypass (CABG) surgery, PCI or myocardial infarction (MI)
  • Tortuous or calcified coronary arteries, if known
  • Coronary arteries with a small caliber (\<2,5 mm), if known
  • Atrial fibrillation, second or third degree atrioventricular block or severe conduction disturbances with an indication for temporary or permanent pacing
  • History of severe COPD or chronic asthma
  • Renal failure ( i.e. eGFR \< 30 mL/min)
  • Use of sildenafil (Viagra) or dipyramidol (Persantin) that cannot be terminated
  • Contra-indications for β-blockers
  • Allergic reaction to iodized contrast
  • Pregnancy
  • Inability to understand and give informed consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Coronary Artery Disease

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesArteriosclerosisArterial Occlusive DiseasesVascular Diseases

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr. P. Knaapen

Study Record Dates

First Submitted

September 20, 2023

First Posted

October 5, 2023

Study Start

January 1, 2024

Primary Completion

January 1, 2025

Study Completion

July 1, 2025

Last Updated

October 5, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will not share