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NCT07337005Not yet recruiting

CompREhensive Diagnostic Assessment of Coronary Endothelial Function Impairment and Vasospasm With CoNtinuous ThErmodilution in Patients With Suspected Coronary Microvascular and Vasomotor Dysfunction

Source: ClinicalTrials.gov · Last updated 13 Jan 2026

Brief summary (registry, in English)

The goal of this observational study is to learn more about the diagnosis of coronary endothelium function and coronary vasospasm using a dedicated invasive protocol in patients who has angina without obstruction in their main heart arteries. The main question it aims to answer is the feasibility, reproducibility, and safety of this invasive protocol: Does this invasive protocol diagnose coronary endothelial dysfunction and vasospasm without issues? Participants already having invasive coronary angiogram and physiological studies will undergo additional physiological measurements during the same procedure. Participants will enrol in a symptoms and quality of life questionnaire using dedicated questionnaires and a mobile application to assess the burden of their symptoms before and after the invasive procedure and up to 12 months follow up. A subset of participants will undergo a repeat set of these measurements to assess reproducibility of the invasive protocol. A subset of the participants will also undergo a cardiac MRI to assess correlation with the invasive protocol measurements.

Status (registry)
Not yet recruiting
Study type
Interventional
Enrollment
100 (estimated)
First submitted
18 Dec 2025
Start date
Dec 2025
Primary completion date
Dec 2026
Lead sponsor
Mid and South Essex NHS Foundation Trust
NCT number
NCT07337005

What you commit to

  • Study type: Interventional
  • Planned participants: 100
  • From Dec 2025 to the primary completion date, Dec 2026
  • No sites listed in no country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Previous coronary artery bypass graft (CABG).

Other illness

  • Moderate to severe valvular heart disease.

Other

  • Pregnancy.
  • Contraindication to angiography and/or physiological assessment with adenosine or acetylcholine.

Who the study is looking for

  • Patients with symptoms suggestive of angina.
  • Evidence of unobstructed coronary arteries on invasive or non-invasive coronary angiography (coronary stenosis \<50% and /or FFR \>0.80).
  • Above the age of 18.
  • The subject has been informed of the nature of the study, agrees to its provisions and has signed written informed consent.

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

This page is information, not medical advice. Discuss any trial with your doctor.