This trial is active, not recruiting.

Condition coronary heart disease
Treatments 3t cmr, spect, ct calcium score, ct coronary angiography, x-ray coronary angiography
Phase phase 4
Sponsor University of Leeds
Collaborator University of Leicester
Start date November 2012
End date March 2016
Trial size 1200 participants
Trial identifier NCT01664858, SP/12/1/29062


CE-MARC 2 is a randomised controlled trial to determine diagnosis and patient management in patients presenting to outpatient clinics with suspected stable angina. Cardiac Magnetic Resonance Imaging (at 3Tesla) will be evaluated prospectively against current best clinical practice (defined by international guidelines). The study hypothesis is that 3Tesla CMR-guided management of patients with suspected stable angina is superior to current clinical practice based on 1) the principles of the National Institutes for Clinical Excellence (NICE) CG95 guidelines (2010); 2) SPECT AHA appropriateness criteria, in terms of avoiding study-defined unnecessary invasive coronary angiography.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification efficacy study
Intervention model parallel assignment
Masking open label
Primary purpose diagnostic
(Active Comparator)
Patient to be managed according to the results of 3T CMR imaging
3t cmr
3Tesla Cardiac Magnetic Resonance Imaging
x-ray coronary angiography
X-Ray coronary angiography
(Active Comparator)
Patients to be managed according to the results of SPECT
SPECT: Single Photon Emission Computed Tomography
x-ray coronary angiography
X-Ray coronary angiography
(Active Comparator)
Patients will be receive NICE-guidelines based management and will receive the imaging strategy specified by NICE according to their pre-test likelihood of having CHD. 10-29% - CT calcium score +/- CT coronary angiography; 30-60% - SPECT; 61-90% - X-Ray coronary angiography
SPECT: Single Photon Emission Computed Tomography
ct calcium score
CT calcium score
ct coronary angiography
CT coronary angiography
x-ray coronary angiography
X-Ray coronary angiography

Primary Outcomes

Unnecessary invasive coronary angiography
time frame: 12 months

Secondary Outcomes

Major adverse cardiovascular event (MACE)
time frame: at 12 months and at 3 years
Positive angiogram (by FFR) rate for each strategy.
time frame: 12 months
Cost effectiveness analysis
time frame: 3 years
Health-related quality-of-life measures (SAQ-UK; SF12; EQ-5D)
time frame: 3 years
time frame: 3 years

Eligibility Criteria

Male or female participants at least 30 years old.

Inclusion Criteria: - Patient ≥30yrs - Patient has suspected stable angina (CHD) that requires further investigation - Has a defined risk of 10-90% (according to NICE guidelines CG95; 2010) - Suitable for revascularisation if required - Given informed written consent Exclusion Criteria: - Non-anginal chest pain - Clinically unstable - Previous MI or biomarker positive ACS - Previous revascularisation with coronary artery bypass surgery or PCI - Contraindication to CMR imaging (pacemaker, intra-orbital debris, intra-auricular implants, intracranial clips, severe claustrophobia) - Contraindication to adenosine infusion (regular adenosine antagonist medication, significant reversible airways disease, second or third degree atrio-ventricular heart block, sino-atrial disease) - Known adverse reaction to Adenosine or Gadolinium contrast agent - Obesity (where body girth exceeds scanner diameter) - Pregnancy or breast feeding - Inability to give informed consent - Known chronic renal failure (eGFR <30mL/min/1.73m2)

Additional Information

Official title Clinical Evaluation of Magnetic Resonance Imaging in Coronary Heart Disease - 2 (CE-MARC2)
Principal investigator John P Greenwood, PhD
Description The study is a randomized controlled trial of non-invasive imaging to determine diagnosis and management of patients presenting with suspected stable angina. Despite the widespread availability of non-invasive imaging and guideline-enshrined use of optimal medical therapy (OMT), patients with suspected coronary heart disease (CHD) often end up having invasive coronary angiography early in their disease course. Currently >50% of elective invasive coronary angiograms performed in the UK and US do not lead on to a revascularisation procedure (data from 2008-09 UK Hospital Episode Statistics; American College of Cardiology National Cardiovascular Data Registry (Patel MR, et al., N Engl J Med 2010;362:886-95)). The UK NICE guidelines for the management of chest pain of recent onset (CG95; 2010) could increase this proportion even further. This is inefficient for patients and also of healthcare resources. More widespread use of non-invasive functional imaging could reduce the rates of unnecessary angiography. We have shown in the CE-MARC study (Lancet 2012) that cardiovascular magnetic resonance (CMR) at 1.5Tesla has a higher diagnostic accuracy for the detection of CHD than single-photon emission computed tomography (SPECT). CE-MARC 2 will be a three-way randomised controlled trial of patient management in 1200 patients with known or suspected CHD, comparing 3Tesla CMR to SPECT-guided care or NICE guidelines-based management. The primary endpoint will be the reduction of unnecessary invasive angiography (defined by invasive FFR) at 12 months - identified by our expert patients as an important 'patient focused' clinical outcome measure. The secondary objectives will include: 1) assessment of safety of a CMR-guided management strategy 2) cost effectiveness analysis of these strategies.
Trial information was received from ClinicalTrials.gov and was last updated in March 2015.
Information provided to ClinicalTrials.gov by University of Leeds.