New registry tracks hidden heart vessel disease
NCT ID NCT05805462
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This registry follows over 670 people with chest pain and non-blocked arteries to study how well tiny heart vessels (microcirculation) work. Participants complete questionnaires about their symptoms and are tracked for up to 5 years for heart events like heart attacks or strokes. The goal is to learn if measuring microvascular resistance can predict future problems.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could help doctors better identify and manage coronary microvascular disease, potentially reducing heart-related events.
- What could go wrong
- This is an observational registry, not a treatment trial, so it won't directly test a new therapy. Results may not apply to all patients.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 671 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2022
- Expected to finish
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Sep 2030
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Consecutive patients in whom physiological assessment of the microcirculatory function including continuous coronary thermodilution has been performed with a Pressure-wire X within the context of routine clinical care.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age \> 18 years. * Stable patients should have complaints of chest pain suspected of angina pectoris or other symptoms raising the suspicion of IHD and non-obstructive epicardial coronary arteries on invasive coronary angiography (ICA, diameter stenosis of less than 50%) with an FFR \>0.80. * Any other clinical scenario (including in the context of ACS) prompting the physician to assess the function of the coronary microvasculature. Exclusion Criteria: * Unable to provide consent * Unstable hemodynamics * Ongoing chest pain. * Previous CABG * Moderate to severe valvular heart disease * Uncontrolled or recurrent ventricular tachycardia. * Active liver disease or hepatic dysfunction, defined as AST or ALT \> 3 times the ULN. * Comorbidity with life expectancy \<= 2 years. * Severe renal dysfunction, defined as an eGFR \<30 mL/min/1.73 m2. * Subject is currently participating in another investigational drug or device clinical study. * Presence of other anatomic or comorbid conditions, or other medical, social or psychological conditions that, in the investigator's opinion, could limit the subject's ability to participate in the clinical investigation or to comply with follow-up requirements, or impact the scientific soundness of the clinical investigation results.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Basildon Hospital
Essex, United Kingdom
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Bristol Heart Institute
Bristol, United Kingdom
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Catharina Hospital
Eindhoven, Netherlands
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Clinica La Princesa
Madrid, Spain
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Golden Jubilee National Hospital
Glasgow, United Kingdom
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Imperial College
London, United Kingdom
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Maasstad Ziekenhuis
Rotterdam, Netherlands
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OLV Ziekenhuis Aalst
Aalst, 9300, Belgium
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Oxford University Hospitals
Oxford, United Kingdom
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Radboud Hospital
Nijmegen, Netherlands
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Righospitalet
Copenhagen, Denmark
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Royal Brompton Hospital
London, United Kingdom
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Royal United Hospital Bath NHS Foundation Trust
Bath, United Kingdom
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San Carlos Hospital
Madrid, Spain
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St. Thomas Hospital, King's College
London, United Kingdom
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University Clinical Center of Serbia, University of Belgrade
Belgrade, Serbia
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University Hospital Lausanne
Lausanne, Switzerland
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University Hospital Puerta del Mar
Cadiz, Spain
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University of Mainz
Mainz, Germany
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a new tracer match the gold standard for heart scans?
- New imaging method could replace risky heart wire test
- Stem cell shot for stubborn chest pain? early trial cut short
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- Exercise program aims to ease chest pain in hidden heart condition