The MASTER-PACT Study
MASTER-PACT
Microvascular Resistance Reserve Assessment Derived From Absolute Flow and Resistance by PET and CT
1 other identifier
observational
40
0 countries
N/A
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Jan 2024
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
CompletedFirst Posted
Study publicly available on registry
October 5, 2023
CompletedStudy Start
First participant enrolled
January 1, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2025
CompletedOctober 5, 2023
October 1, 2023
1 year
September 20, 2023
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
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
Condition Hierarchy (Ancestors)
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