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Study identifier: NCT07386418 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Study of Lesion-Specific Invasive Haemodynamic Angina Thresholds

Condition: Angina (Stable) · Coronary Artery Disease(CAD) · Ischaemic Heart Disease (IHD)  ·  Sponsor: Imperial College London

PhaseNA
Planned participants60
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

ORBITA-SOLAR is an invasive physiological cardiac catheterisation study that aims to determine whether different coronary stenoses have different angina thresholds. The angina threshold is defined as the amount of coronary flow reduction required to reproduce symptoms. Sixty patients with symptoms of stable angina and 2 coronary artery stenoses amenable to percutaneous coronary intervention (PCI) will be recruited. This study will use intra-coronary balloon inflation during supine exercise on an ergometer to measure the fractional flow reserve (FFR) and non-hyperemic pressure ratio (NHPR) that relates to angina onset, in real time, at the location of each stenosis.

This description comes directly from the study's public registry record.

Talk to the study team

Kayla Chiew, MBBS MRCP  ·  020 7594 5735  ·  kayla.chiew@imperial.ac.uk

Rasha Al-Lamee, MBBS PhD MRCP  ·  020 7594 5735  ·  r.al-lamee13@imperial.ac.uk

Always discuss trial participation with your own doctor first.

Locations (7)

Mid and South Essex NHS Foundation TrustBasildon, United KingdomRecruiting
University Hospitals Dorset NHS Foundation TrustBournemouth, United KingdomNot Yet Recruiting
Chelsea and Westminster Hospital NHS Foundation TrustLondon, United KingdomRecruiting
Guy's and St Thomas' NHS Foundation TrustLondon, United KingdomNot Yet Recruiting
Imperial College Healthcare NHS TrustLondon, United KingdomRecruiting
Royal Free London NHS Foundation TrustLondon, United KingdomNot Yet Recruiting
St George's University Hospitals NHS Foundation TrustLondon, United KingdomNot Yet Recruiting

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Source record: clinicaltrials.gov/study/NCT07386418