Helium-free Magnetocardiography Guided Therapy for Stable Coronary Artery Disease - A Randomized Controlled Trial

NCT ID: NCT07341932

Last Updated: 2026-01-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

1312 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-27

Study Completion Date

2027-12-01

Brief Summary

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This rigorously designed randomized controlled trial aims to investigate whether Magnetocardiography (MCG) can optimize the clinical pathway, improve quality of life, and reduce healthcare costs in patients with stable coronary artery disease (SCAD) within real-world clinical settings, thereby generating evidence for the future application of MCG in clinical decision-making pathways.

Stable CAD patients with at least one major coronary vessel showing 50%-90% stenosis on coronary CTA will be enrolled based on predefined criteria. Stratified by study center and using a central web-based randomization system, participants will be allocated in a 1:1 ratio to either the \*\*MCG-guided group\*\* (where treatment recommendations for invasive coronary angiography \[ICA\] or optimal medical therapy are based on MCG results) or the \*\*conventional management group\*\* (where treatment strategy is based on stenosis severity, pre-test probability, and functional test results).

The study will proceed with the following evaluations:

1. Compare the proportion of patients with non-obstructive coronary artery disease on planned ICA performed within 90 days between the two groups, testing the hypothesis that this proportion is lower in the MCG-guided group.
2. Conduct telephone follow-ups at 90 days, 6 months, and 12 months post-enrollment to compare between-group differences in the rate of Major Adverse Cardiovascular Events (MACE), Seattle Angina Questionnaire (SAQ) scores, and total healthcare expenditures during the follow-up period.

Detailed Description

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Conditions

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Stable Coronary Artery Disease CAD

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors
Allocation concealment was implemented using a web-based central randomization system. Study site staff entered each participant's basic information (initials, age, gender, subject ID, etc.) and stratification factors into the system. Based on the predefined principles, the system automatically generated a unique random number and subject ID, and notified the investigator at the respective site via the network regarding the participant's assignment to either the intervention or control group. Upon receiving the randomization result, the site investigator administered the corresponding treatment-either the intervention or control therapy-according to the assigned group.

Study Groups

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Conventional Management Group

Treatment strategies were recommended based on stenosis severity, pre-test probability, and functional test results: For patients with 50-70% stenosis, if the pre-test probability was \<15%, treatment recommendations had to be made by clinicians integrating one or more functional test results (e.g., exercise ECG, stress echocardiography, SPECT, stress CMR); if the pre-test probability was ≥15%, it was advised to recommend treatment strategies considering functional test results. For patients with CCTA-indicated 70-90% stenosis, clinicians could directly recommend ICA or optimal medical therapy.

Group Type EXPERIMENTAL

Conventional Management Group

Intervention Type DIAGNOSTIC_TEST

Treatment strategy is recommended based on stenosis severity, pre-test probability, and results of functional tests.

MCG Group

Based on MCG results, either ICA or optimal medical therapy was recommended.

Group Type EXPERIMENTAL

MCG Group

Intervention Type DIAGNOSTIC_TEST

Based on MCG results, either ICA or optimal medical therapy was recommended.

Interventions

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Conventional Management Group

Treatment strategy is recommended based on stenosis severity, pre-test probability, and results of functional tests.

Intervention Type DIAGNOSTIC_TEST

MCG Group

Based on MCG results, either ICA or optimal medical therapy was recommended.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

1. Age 18-80 years, regardless of gender.
2. Patients with stable coronary artery disease (CAD).
3. Coronary computed tomography angiography (CCTA) shows at least one major coronary vessel (diameter ≥2.5 mm) with 50-90% stenosis. Patients with 50-69% stenosis must have typical or atypical angina; for those with 70-90% stenosis, the presence of chest pain symptoms is not required.

\*Note: Chest pain is characterized by the following three features:\* \*(1) Chest discomfort lasting less than 15 minutes;\* \*(2) Precipitated by physical exertion or emotional stress;\* \*(3) Relieved by rest or nitrates.\* \*Based on these, angina is classified as:\*
* \*Typical angina: all 3 features are present;\*
* \*Atypical angina: 2 features are present;\*
* \*Non-anginal chest pain: 1 or no feature is present.\*
4. Willing to participate in the study and provide written informed consent.

Exclusion Criteria

1. Previous myocardial infarction, PCI, CABG, or coronary angiography indicating stenosis ≥50% in a major vessel.
2. CCTA indicating left main coronary artery stenosis \>50% and/or three-vessel disease.
3. History of cardiac dysfunction (≥ NYHA Class III), severe congenital heart disease, valvular heart disease, or cardiomyopathy.
4. Complex arrhythmias, such as frequent atrial premature beats, ventricular premature beats, atrial fibrillation, atrial flutter, etc.
5. History of metal implant placement (including mechanical valves, pacemakers, orthopedic internal fixation plates, drug pumps, etc.).
6. Claustrophobia.
7. Severe thoracic deformity.
8. Active bleeding.
9. Any disease with an expected survival of less than 1 year.
10. Completion of any of the following tests prior to enrollment: exercise ECG, stress echocardiography, stress SPECT, or stress CMR.
11. Any other condition where the investigator considers the patient unsuitable for this study.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beijing Anzhen Hospital

OTHER

Sponsor Role lead

Responsible Party

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song xiantao

Director of Cardiology Ward A, Department of Cardiology I

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Air Force Medical Center, People's Liberation Army of China

Beijing, Beijing Municipality, China

Site Status

Beijing United Family Hospital

Beijing, Beijing Municipality, China

Site Status

首都医科大学附属北京安贞医院

Beijing, Beijing Municipality, China

Site Status

The Third People's Hospital of Chengdu

Chengdu, Sichuan, China

Site Status

Urumqi Friendship Hospital

Ürümqi, Xinjiang Uygur Autonomous Region, China

Site Status

Countries

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China

Central Contacts

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xiantao Song

Role: CONTACT

86-010-64412431

Facility Contacts

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Haitao Zhang

Role: primary

86-010-66928118

Dezhao Wang

Role: primary

86-010-59277350

Xiantao Song

Role: primary

86-010-64412431

Zhen Zhang

Role: primary

86-028-61312288

Wen Bai

Role: primary

86-0991-7900983

Other Identifiers

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2024AZB1003

Identifier Type: OTHER_GRANT

Identifier Source: secondary_id

2024AZB1003

Identifier Type: -

Identifier Source: org_study_id

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