Objective Risk Assessment in Patients With Possible Anginal Chest Pain Using Leading Technology (ORACLE)

ORACLE: Objective Risk Assessment in Patients With Possible Anginal Chest Pain Using Leading Technology

The ORACLE study is an observational cohort study designed to explore the feasibility of providing an assessment of chest pain for patients with suspected angina within one working day of referral to specialist services.

The primary objective is to determine the feasibility of delivering an objective assessment of risk for participants who have been referred by their primary care provider to the rapid access chest pain clinic with possible angina in a community setting using point of care and patient facing technologies within one working day of referral.

Participants will complete a digital health questionnaire, at home, that asks about their risk factors for coronary artery disease, past medical history and their symptoms.

Patients will then have a standard 12 lead ECG and perform their own personal ECG. They will then have high sensitivity cardiac troponin measured by point of care high sensitivity cardiac troponin assays as well as a core lab assay.

The results of all of the above will allow patients to be started as low, intermediate or high risk for future cardiovascular events.

Study Overview

• Status: Not yet recruiting
• Conditions: Coronary Artery Disease; Angina, Stable
• Intervention / Treatment: Other: The assessment of patients with possible angina using the ORACLE pathway

Detailed Description

Recent onset of angina is a clinical manifestation of unstable or progressive coronary artery disease and is a common presentation within primary care. Evaluation can be challenging as access to objective measures of risk and diagnostic testing are limited in this setting. Due to capacity, not all patients referred to the rapid access chest pain clinic can be reviewed within this clinic.

Patients are often high risk with suspected obstructive coronary artery disease, and the aim should be for review, assessment and if required, initiation of therapy, without undue delay.

This study has been designed to explore the feasibility of delivering a virtual chest pain assessment for patients with new onset chest pain. It is an observational cohort study, that uses a combination of digital tools to capture relevant patient information and clinical history, point-of-care high-sensitivity cardiac troponin testing and electrocardiography.

This pathway will aim to provide an objective assessment of risk on the next working day following primary care contact to all patients referred to the rapid access chest pain clinic.

On completion of this assessment patients will be stratified to low, intermediate or high risk groups based on their symptoms, risk factors, point of care troponin value (ng/l) and ECG. The results will not be made available to the clinical team unless the patients was at risk of harm (acute coronary syndrome or arrhythmia). Patients will return to receive routine clinical care.

The investigators plan to recruit 300 participants or for six months, whatever arises first. Participants can only be recruited once during the study period.

• Study Type: Observational
• Enrollment (Estimated): 300

Contacts and Locations

• Study Contact: Name: Michael McDermott, MBChB; Phone Number: 07966024516; Email: michael.mcdermott@ed.ac.uk
• Study Contact Backup: Name: Nicholas L Mills, MD; Email: nick.mills@ed.ac.uk

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

All patients referred to the rapid access chest pain service within NHS Lothian will be eligible to participate in our feasibility study.

Description

Inclusion Criteria:

• >30 years of age
• Referral to the rapid access chest pain clinic with possible new onset or worsening angina

Exclusion Criteria:

• Inability to give informed consent.
• Previous recruitment to the study.
• Acute coronary syndrome within 3 months.

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort

Intervention / Treatment

Patients with possible angina; Participants will complete a digital health questionnaire, at home, that asks about their risk factors for coronary artery disease, past medical history and their symptoms. Patients will then have a standard 12 lead ECG and perform their own personal ECG. They will then have high sensitivity cardiac troponin measured. The results of all of the above will allow patients to be started as low, intermediate or high risk for future cardiovascular events.

Other: The assessment of patients with possible angina using the ORACLE pathway; Participants will complete a digital health questionnaire, at home, that asks about their risk factors for coronary artery disease, past medical history and their symptoms. Patients will then have a standard 12 lead ECG and perform their own personal ECG. They will then have high sensitivity cardiac troponin measured. The results of all of the above will allow patients to be started as low, intermediate or high risk for future cardiovascular events.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Proportion of participants in whom a chest pain risk assessment is complete within one working day of referral.	The proportion of participants who have been referred by their primary care provider to the rapid access chest pain clinic with possible angina in whom a complete risk assessment is delivered in a community setting using point of care and patient facing technologies within one working day of referral.	This is the time from referral to rapid access chest pain clinic through to completion of their visit, anticipated to be between 1 and 3 days.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Proportion of patients who can have their risk assessment completed in one, two or three or more working days from referral to service until completion of risk assessment.	The proportion of participants who have been referred by their primary care provider to the rapid access chest pain clinic with possible angina in whom a complete risk assessment is delivered in a community setting using point of care and patient facing technologies within one, two or three or more working days of referral.	This is the time from referral to rapid access chest pain clinic through to completion of their visit, anticipated to be between 1 and 3 days.
Proportion of valid and interpretable point-of-care troponin tests	This will be the proportion of patients in whom a valid high sensitivity cardiac troponin result can be obtained from undertaking the point of care assay.	This will be completed during the patients study visit, anticipated to last 1 hour
Proportion of personal electrocardiograms that are interpretable	This will be the proportion of patients in whom an interpretable personal ECG has been performed	This will be completed during the patients study visit, anticipated to last 1 hour
Proportion of participants stratified as low, intermediate, or high risk using objective risk stratification.	This will be the proportion of patients who are stratified into low, intermediate or high risk groups on completion of their risk assessment.	This will be completed during the patients study visit, anticipated to last 1 hour
Proportion of participants with and without a clinical diagnosis of angina stratified as low, intermediate, or high risk and according to triage status.	This will be the proportion of patients who do and do not receive a clinical diagnosis of angina and this will be stratified by triage status	This will be obtained at 3 months following completion of the patient's assessment.
Proportion of participants with unscheduled Emergency Department attendance(s) at 3 months stratified as low, intermediate, or high risk and according to triage status.	This will be the proportion of patients who present acutely to the emergency department in the 3 months following assessment. This will be stratified by risk stratification and their clinical triage status.	This will be obtained at 3 months following completion of the patient's assessment.
Proportion of participants with cardiac death or non-fatal myocardial infarction at 3 months stratified as low, intermediate, or high risk and according to triage.	This will be the proportion of patients who have cardiac death or fatal myocardial infarction in the 3 months following assessment. This will be stratified by risk stratification and their clinical triage status.	This will be obtained at 3 months following completion of the patient's assessment.

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Proportion of participants reclassified as low, intermediate, or high risk using standard laboratory assays compared to point-of-care high-sensitivity cardiac troponin assay.	Patients will have a point of care troponin and a core laboratory high sensitivity troponin. The proportion of patients who are re-classified by the current laboratory clinical standard will be recorded	This will be completed during the patients study visit, anticipated to last 1 hour
Proportion of participants reclassified as low, intermediate, or high risk using standard 12-lead compared to personal 12-lead electrocardiography	Patients will have a standard 12 lead and personal ECG. The proportion of patients who are re-classified by the current clinical standard 12 lead ECG will be recorded.	This will be completed during the patients study visit, anticipated to last 1 hour

Collaborators and Investigators

• Sponsor: University of Edinburgh
• Investigators: Principal Investigator: Michael McDermott, MBCHB, University of Edinburgh

Study record dates

Study Major Dates

• Study Start (Estimated): May 1, 2024
• Primary Completion (Estimated): November 1, 2024
• Study Completion (Estimated): February 28, 2025

Study Registration Dates

• First Submitted: March 6, 2024
• First Submitted That Met QC Criteria: March 14, 2024
• First Posted (Actual): March 22, 2024

Study Record Updates

• Last Update Posted (Actual): March 22, 2024
• Last Update Submitted That Met QC Criteria: March 14, 2024
• Last Verified: March 1, 2024

More Information

Terms related to this study

• Keywords: angina, chest pain, cardiac troponin, risk stratification
• Additional Relevant MeSH Terms: Myocardial Ischemia; Heart Diseases; Cardiovascular Diseases; Vascular Diseases; Arteriosclerosis; Arterial Occlusive Diseases; Pain; Neurologic Manifestations; Coronary Disease; Angina Pectoris; Coronary Artery Disease; Chest Pain; Angina, Stable
• Other Study ID Numbers: 337367

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No