Clinical trial Recruiting at 1 site Observational Ages 18 and up

Understanding how heart conditions affect tolerance to rapid heart rates

Official title: Coronary Epicardial and Microcirculatory Determinants of Ventricular Tachycardia Tolerability

Run by Imperial College London · NCT05841199 · Data updated 2026-11-12

This study is testing how well people with heart conditions, especially those with coronary artery disease, can handle fast heart rates and whether treating their condition with stents can help them tolerate it better.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment70 (estimated)
SponsorImperial College London
Academic / other
Locations1 site (London)
StatusRecruiting
StartedAugust 1, 2023
Main results expectedJune 2, 2026
Study endsJune 2, 2026
Registry record updatedMarch 27, 2026
Trial IDNCT05841199 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are patients referred for coronary angiography or angioplasty who can provide valid consent.

Probably not a fit

Patients with unstable coronary artery disease, severe heart valve disease, or severe heart failure may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to investigate the factors that influence how well patients tolerate ventricular tachycardia (VT), particularly focusing on the impact of coronary artery disease. Participants undergoing coronary angiograms or angioplasty will have their blood pressure, coronary pressure, and flow measured during induced rapid heart rates. The study seeks to determine whether treating coronary artery disease with stents can improve VT tolerability. By identifying these factors, the research could help tailor patient management and potentially reduce the need for implantable cardioverter defibrillators (ICDs).

Why it matters

Potential benefit: If successful, this study could lead to improved management strategies for patients with ventricular tachycardia, potentially reducing reliance on ICDs.

How similar studies have gone: While this approach is observational and may build on existing knowledge, it addresses a specific gap in understanding VT tolerability, making it a novel investigation.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Able to give valid consent
* Referred for coronary angiography or coronary angioplasty
* Suitable for percutaneous physiological interrogation and PCI when clinically indicated

Exclusion Criteria:

* Unable to give valid consent
* Pregnant or breastfeeding women
* Unstable coronary artery disease (acute coronary syndrome)
* Severe multivessel coronary artery disease suitable for coronary artery bypass grafting
* Severe heart valve disease
* Severe (NYHA IV) heart failure

Where it's running

  • Imperial College NHS Foundation Trust
    London, United Kingdom
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.