NCT06185530

Brief Summary

Diseases of the heart and circulation are known as cardiovascular diseases, and they cause over 160,000 deaths each year. Coronary heart disease (CHD) is the most common cardiovascular disease. This is due to a build-up of fatty material, known as atherosclerosis, in the blood vessels supplying blood to the heart muscle. This can cause chest pain or if blocked, can cause a heart attack. Two of the main non-invasive tests to look for coronary heart disease are Computed Tomography Coronary Angiography (CTCA) and Stress Echocardiography (Ultrasound scan). CTCA shows the arteries and allows small amounts of disease to be seen that may not yet be causing any symptoms. However, if there's lots of disease and calcification, it becomes difficult to tell how severe it is, which means several tests may be needed. Stress Echocardiography shows if enough blood is reaching the heart muscle, so can show if there is severe disease that needs treatment. However, it can't see the arteries so doesn't showt small disease that may benefit from tablet treatment. There is not yet an effective non-invasive combined test that can give all this information in one go. Studies have shown that if there's atherosclerosis in another artery, a person is very likely to have coronary atherosclerosis as well. Carotid atherosclerosis, in the neck arteries, can be seen with ultrasound similar to stress echocardiography. So, by combining these two tests the investigators want to see if it is possible to see severe as well as small areas of disease in one test, to provide better treatment. The study will enrol 2,000 participants, who need investigation for CHD, equally randomised to CTCA or stress echocardiography with carotid ultrasound. We will follow these participants for 5 years and observe for any adverse outcomes and ask them to complete a questionnaire.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,000

participants targeted

Target at P75+ for not_applicable

Timeline
69mo left

Started Sep 2023

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress32%
Sep 2023Dec 2031

First Submitted

Initial submission to the registry

May 31, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

September 18, 2023

Completed
3 months until next milestone

First Posted

Study publicly available on registry

December 29, 2023

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2031

Last Updated

November 21, 2025

Status Verified

October 1, 2025

Enrollment Period

3.3 years

First QC Date

May 31, 2023

Last Update Submit

November 20, 2025

Conditions

Keywords

CTCAStress EchocardiographyCarotid Ultrasound

Outcome Measures

Primary Outcomes (1)

  • Detection of obstructive CAD and prevalence of MACE in enrolled participants

    Within 3 months of randomisation confirmed by documentation in medical record

Secondary Outcomes (6)

  • Assessment of resource utilisation between study arms (subsequent downstream testing, cardiac related hospital visits, costs and incremental cost effectiveness)

    Time to first event, up to 18 months post randomisation, confirmed by medical record documentation

  • Assessment of overall ionising radiation exposure (dose) between study arms

    Within 3 months of randomisation, confirmed by documentation in investigation report

  • Major complications from cardiovascular procedures or cardiovascular diagnostic testing

    Up to18 months from randomisation to time of first documented outcome in medical records

  • Analysis of patient derived chest pain related quality of life (EQ-5D)

    at 6-months and 12-months after randomisation on telephonecall questionnaire completion with patient

  • Change in prescription of preventative therapies (including statin and anti-platelet agents or dose increase of current statin therapy > 50%)

    Up to 18 months from randomisation to time of first documented outcome in medical records

  • +1 more secondary outcomes

Study Arms (2)

Participants undergo the cardiac tests: stress echocardiography with carotid ultrasound

EXPERIMENTAL
Diagnostic Test: Detection of obstructive coronary disease

Participants undergo the cardiac test: CT coronary angiography

ACTIVE COMPARATOR
Diagnostic Test: Detection of obstructive coronary disease

Interventions

Detection of obstructive coronary disease

Participants undergo the cardiac test: CT coronary angiographyParticipants undergo the cardiac tests: stress echocardiography with carotid ultrasound

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age \> 18 years old
  • Patients referred to RACPC and judged by the reviewer to require a further imaging investigation, either SE or CTCA, to evaluate a suspected diagnosis of CAD
  • AND
  • Have a PTP score ≥ 5%, as calculated using ESC guidelines OR
  • Have clinical history in keeping with 'typical' angina symptoms, as judged by the investigator, in patients with a PTP score \<5% - With 'typical' symptoms, as per ESC guidelines, being all three of the following
  • i) Constricting symptoms in the front of the chest or in the neck, jaw, shoulder or arm ii) Precipitated by physical exertion iii) Relieved by rest or nitrates within 5 minutes
  • Able to give informed consent to participate in the study and its follow up

You may not qualify if:

  • Patients with diagnosed ACS that require urgent or emergency treatment or hospitalisation for inpatient investigations.
  • Known history of obstructive CAD (Previous MI, PCI or CABG) or previous invasive angiography with evidence of ≥ 50% stenosis in any epicardial vessel.
  • Patients who have undergone invasive or non-invasive, functional or anatomical (Including CAC score) testing for detection of CAD within the previous 1 year of clinical assessment.
  • Documented allergy to iodinated contrast or documented allergy to both ultrasound contrasts used at LNWH Trust; Luminity® (Perflutren) and SonoVue® (Sulphur Hexafluoride) or the constitutes
  • Contraindications to undergoing CTCA, including but not limited to;
  • eGFR \< 40 ml/min
  • Contraindications to beta-blockers including but not limited to, documented allergy or significant airways disease in the judgement of the investigator.
  • Exceeding CT scanner weight tolerance
  • Contraindications to undergoing SE, including but not limited to;
  • Known cardiomyopathic process (Hypertrophic cardiomyopathy (HCM)) with resting gradient \> 50mmHg or severe valvular lesion
  • Severe uncontrolled hypertension (≥180/100mmHg)
  • Known pregnancy
  • Unable to provide informed consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

London North West University Healthcare NHS Trust

Harrow, Middx, HA1 3UJ, United Kingdom

RECRUITING

MeSH Terms

Conditions

Coronary DiseaseCoronary Artery Disease

Condition Hierarchy (Ancestors)

Myocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular DiseasesArteriosclerosisArterial Occlusive Diseases

Study Officials

  • Prof Roxy Senior

    LNWH Trust

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 31, 2023

First Posted

December 29, 2023

Study Start

September 18, 2023

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2031

Last Updated

November 21, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will not share

Locations