ClinicalTrials.gg
CompletedNCT05150054MICROUpdated Aug 31, 2023

MCG as a Noninvasive Diagnostic Strategy for Suspected Coronary Microvascular Dysfunction

An observational study in Coronary Microvascular Dysfunction and Ischemic Non-Obstructive Coronary Artery Disease, sponsored by Genetesis Inc.. Completed at 4 sites in United States. Open to participants aged 18 Years to 100 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-08-31.

Sponsored by Genetesis Inc. · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
93
Ages
18 Years to 100 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 1,105 studies in Coronary Artery Disease with a site in United States — 102 open to participants now, 147 under way, 10 of them phase 3. Coronary Artery Disease · United States.

Enrollment
225th of 357
93 · median 186
Started
2022
with 24 others
Observational
358 of 1,105
34 open now
Registered
959th of 1,105
by date

Among the 1,105 studies in Coronary Artery Disease with a site in United States, this one is the 225th largest by enrollment of the 357 observational ones that give a count, is one of 25 that started in 2022, is one of 358 observational ones, and was the 959th registered.

Coronary Artery Disease

4,857 studies on the registry are indexed under Coronary Artery Disease; 890 are open to participants now.

Browse Coronary Artery Disease studies →

Open to participants now

102 of the 1,105 studies in Coronary Artery Disease with a site in United States are open now. Recruiting first, the newest first:

97 more — sign in →

All 102 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 588 Coronary Artery Disease studies recruiting now, 402 (68%) set no upper age limit and 68 (12%) stop at 75 or younger; 38 take children under 18; 47 take healthy volunteers.

This study: 18 Years to 100 Years · all sexes · healthy volunteers too.

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02

Study summary

According to the Women's Ischemic Syndrome Evaluation database, there are approximately 3 to 4 million women and men who present with signs and symptoms that are suggestive of myocardial ischemia, however they have no obstructive coronary artery disease (INOCA). INOCA is defined as patients presenting with signs or symptoms of ischemia but no obstructive artery disease. Women are more likely than men to die from cardiovascular disease and more likely to present with no obstructive coronary artery disease. Patients who present with signs and symptoms suggestive of INOCA/MINOCA are also presenting with Coronary Microvascular Dysfunction (CMD). Coronary Microvascular Dysfunction is a dysfunction in the epicardial and/or microvascular endothelial and/or nonendothelial that limits myocardial perfusion. Today, there is no routinely offered/available noninvasive test that is used for the diagnosis of CMD, significantly hindering the ability to identify the disease in the standard of care. Magenetocardiography (MCG) has the opportunity to use its noninvasive imaging techniques to provide early management of CMD. Magnetocardiography (MCG) is a noninvasive imaging modality that has been extensively studied, over the past several decades, as a diagnostic imaging solution for various forms of cardiovascular disease. MCG measures the magnetic field that arises from the electrical activity of the heart's pacemaker activity, the very same activity which yield surface electric field potentials as measured by the electrocardiogram. Since MCG is a functional assessor of repolarization heterogeneity, it is hypothesized that MCG may be a useful frontline diagnostic to identify CMD in patients who would otherwise have normal coronary CT angiograms and/or stress tests. The proposed study intends to study the diagnostic accuracy of MCG in this population, with the goal of providing early and noninvasive insights for management of CMD. There will be a 12-month duration of the study where the investigators propose to collect MCG scans from approximately 150 patients who present to the Genetesis facility for a 15-minute CardioFlux scan appointment.

03

Conditions studied

  • Coronary Microvascular Dysfunction
  • Ischemic Non-Obstructive Coronary Artery Disease

Keywords

  • INOCA
  • Magnetocardiography
  • CardioFlux
  • MCG
  • Coronary Microvascular Dysfunction
04

Who can participate

Ages eligible
18 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

All patients presenting with signs and symptoms of chest pain that prompted further evaluation by either a heart angiogram or a scan of the heart (coronary CT angiogram) within the previous 5 years.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. ≥ 18 years of age at the time of enrollment
  2. Signs and symptoms of chest pain that prompted further evaluation by either a heart angiogram or a scan of the heart (coronary CT angiogram) within the previous 5 years
  3. Willing to provide written
  4. Non-obstructive CAD defined as 0 to 49% diameter reduction of a major epicardial vessel or a FFR>0.80
  5. Scheduled for CRT
  6. No cardiac medications in the last 24 hours of an MCG-CF scan (with the exception of the patients enrolled in the data development set)

Exclusion criteria

Exclusion Criteria:

  1. Patients unable to fit into device
  2. Non-ambulatory patients
  3. Patients who meet device
  4. Patients unable to lie supine for 5 minutes
  5. History of noncompliance (with medical therapy, protocol, or follow-up)
  6. History of non-ischemic dilated or hypertrophic cardiomyopathy
  7. Documented acute coronary syndrome (ACS) within previous 30 days
  8. (LVEF) \<40%, heart failure (NYHA HF) class III-IV, or hospitalization for Reduced ejection fraction (HFrEF) within 180 days
  9. Stroke within previous 180 days or intracranial hemorrhage at any time
  10. End-stage renal disease, on dialysis, or estimated (eGFR) \<30 ml/min.
  11. Severe valvular disease or likely to require surgery/Transcatheter aortic valve replacement (TVAR) within 3 years
  12. \<3-yrs. due to non-cardiovascular comorbidity
  13. Enrolled in a competing clinical trial
  14. Prior intolerance to both an ACE-I and ARB
  15. If intolerant to a statin unless taking a PCSK9 as a statin replacement by their clinical provider
  16. Pregnancy
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
93 participants (actual)
Patient registry
No

Interventions

  • DeviceCardioFlux

    Not an intervention

06

What researchers measure

Primary outcomes

  1. Diagnostic accuracy of CardioFlux

    Analyzing the diagnostic accuracy of CardioFlux in determining the presence of coronary microvascular dysfunction

    Time frame: 12 months

07

Study locations

4 sites
  • Ascension St. John
    Detroit, Michigan 48236, United States
  • The Christ Hospital
    Cincinnati, Ohio 45219, United States
  • Cleveland Clinic
    Cleveland, Ohio 44195, United States
  • Genetesis Facility
    Mason, Ohio 45040, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2022 to primary completion in Jul 2023, 18 months.

Of 125 industry-sponsored observational studies under Coronary Artery Disease, half reached primary completion within 27 months of starting (the median), counting those still running; a quarter within 15 and three quarters within 40. This study's 18 months is below that.

Counting every sponsor, half of 759 studies reached it within 40 months; a quarter within 21 and three quarters within 87.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 18, 2021
First posted
Dec 8, 2021
StartActual
Jan 14, 2022
Primary completionActual
Jul 18, 2023
CompletionActual
Jul 30, 2023
Last update
Aug 31, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 31, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05150054
Lead sponsor
Genetesis Inc.
Responsible party
Sponsor
First posted
Dec 8, 2021
Start date
Jan 14, 2022
Primary completion
Jul 18, 2023
Completion
Jul 30, 2023
Last update
Aug 31, 2023

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2023. You cannot join it, but the record below documents what was studied.

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Discussion

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