MCG for Identification of Myocardial Ischemia in Suspected NSTE-ACS Patients

September 23, 2025 updated by: Qilu Hospital of Shandong University

Magnetocardiography as an Innovative Diagnostic Tool for Early and Accurate Identification of Myocardial Ischemia in Suspected NSTE-ACS Patients

The goal of this multi-center observational study is to learn about the effectiveness of magnetocardiography in rapid and accurate identification of ischemia in patients with suspected NSTE-ACS.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Rapid and accurate Identification of ischemia in patients with chest pain suspected of non-ST-elevation-acute coronary syndrome (NSTE-ACS) is of great clinical significance for timely and effective treatment. Magnetocardiography based on spin-exchange relaxation-free (SERF) principle can detect the weak magnetic field generated by the heart sensitively, which do not need ultra-low temperature cooling. Magnetic signal does not decay through the skin and tissues as electricity does, hence magnetocardiogram (MCG) contains more information of diagnostic value of ischemia. The aim of this observational study is to optimize and validate MCG models as a fast and accurate strategy for detecting coronary ischemia, as a shortage of blood supply to myocardium, in patients who suffer from chest pain, and compare to routine diagnostic means.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
14090

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Shandong
      • Jinan, Shandong, China, 250012
        • Recruiting
        • Qilu Hospital of Shandong University
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

chest pain patients with suspected NSTE-ACS

Description

Inclusion Criteria:

  1. Age 18 years or older;
  2. Patients with symptoms of myocardial ischemia such as angina who are suspected to NSTE-ACS and proposed to undergo CAG or coronary CTA;
  3. Signed informed consent.

Exclusion Criteria:

  1. Patients with ST-elevation myocardial infarction (STEMI);
  2. Patients with Non-ischemic dilated cardiomyopathy, or hypertrophic cardiomyopathy, or moderate or severe valvular disease;
  3. Patients with Hemodynamic instability (systolic blood pressure<90 mmHg, or who requires vasoactive drugs), or patients with tachyarrhythmia, Ⅱ degree atrioventricular block and above that have not returned to normal;
  4. Patients who have severe renal abnormality with eGFR <30 ml/min, or patients who are on dialysis;
  5. Patients with malignant tumors with predicted survival of less than 1 year;
  6. Pregnant or breastfeeding women;
  7. Patients who are unable to enter the MCG device, who are unable to perform MCG examination due to interference from metal implants or other reasons, or who are deemed by the investigators to be unsuitable for enrollment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Training and testing cohort
Device: Magnetocardiography
Magnetocardiography
External validation cohort
Device: Magnetocardiography
Magnetocardiography

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Efficacy of MCG to detect coronary ischemia in patients with suspected NSTE-ACS
Time Frame: from the date of enrollment until the date of discharge, up to 30 days
the sensitivity and specificity of MCG to detect coronary ischemia (defined as stenosis ≥ 90% or fractional flow reserve ≤0.8）
from the date of enrollment until the date of discharge, up to 30 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Efficacy of MCG in identifying coronary ischemia in patients with normal ECG.
Time Frame: from the date of enrollment until the date of discharge, up to 30 days
A normal ECG is determined by two cardiologists with over five years of working experience. If there is any objection, the decision shall be made by a third cardiologist of the same qualifications or above. Sensitivity, specificity, and area under ROC curve (AUC) are performed for assessing the efficacy.
from the date of enrollment until the date of discharge, up to 30 days
The time saved by using MCG in the detection of NSTEMI compared to troponin
Time Frame: from the date of enrollment until the date of discharge, up to 30 days
The time for the detection of NSTEMI is from the timepoint of first medical contact to the timepoint of MCG report showing ischemia or the first report of troponin that over the 99th percentile of the Upper reference limit (URL).
from the date of enrollment until the date of discharge, up to 30 days
Efficacy of MCG in evaluating the severity of coronary lesions.
Time Frame: from the date of enrollment until the date of discharge, up to 30 days
The severity of coronary lesions is determined by using CAG/CTA and fractional flow reserve. Severe degree is defined as ≥90% stenosis of at least one main vessel or branch vessel with diameter ≥2mm. Moderate degree is defined as 50%-89% stenosis and fractional flow reserve ≤0.8. Mild degree is defined as <50% stenosis and fractional flow reserve ≤0.8, or stenosis 50%-89% and fractional flow reserve> 0.8. Sensitivity, specificity, and area under ROC curve (AUC) are performed for assessing the efficacy.
from the date of enrollment until the date of discharge, up to 30 days
Efficacy of MCG in early stratification of patients with suspected NSTE-ACS
Time Frame: from the date of enrollment until the date of discharge, up to 30 days
For early stratification measurement, patients with suspected NSTE-ACS are assessed by 30d (from enrollment) MACE and classified as high or low risk. Sensitivity, specificity, and area under ROC curve (AUC) are performed for assessing the efficacy of MCG.
from the date of enrollment until the date of discharge, up to 30 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Qilu Hospital of Shandong University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
The First Affiliated Hospital with Nanjing Medical University
First People's Hospital of Hangzhou
Guangdong Provincial Hospital of Traditional Chinese Medicine
Second Affiliated Hospital, School of Medicine, Zhejiang University
First Affiliated Hospital Xi'an Jiaotong University
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
Qianfoshan Hospital
Linyi People's Hospital
Weifang People's Hospital
Chongqing Emergency Medical Center
Weihai Central Hospital
Heze Municipal Hospital
Jining First People's Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Yuguo Chen, Professor, Qliu Hospital of Shandong University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 2, 2024

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 31, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 11, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 26, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 9, 2024

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 29, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 23, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MCG-NSTEACS

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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