No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
Ready to participate?
Review the details below, then apply to join this clinical trial.
At a Glance
Sex
Any
Study type
Observational
Participants needed
1,000 (estimated)
Sponsor
Mayo Clinic · Other
Who this trial is looking for
This trial is looking for people with heart conditions related to arrhythmogenic ventricular cardiomyopathy (AVC) or sudden cardiac events. Participants will provide medical information and samples to help researchers understand the genetic aspects of AVC.
Are You a Good Fit for This Trial?
You may be able to join if
I have survived sudden cardiac arrest not caused by a heart attack.
I have a history of sudden cardiac death that is not due to a heart attack.
I have experienced sudden cardiac arrest linked to seizures or fainting.
I am a family member of someone diagnosed with primary cardiomyopathy.
You may not be able to join if
I have a known clear cause of sudden cardiac arrest or death, like a heart attack.
I have significant coronary artery disease that explains my heart issues.
I do not want to provide written consent.
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer three quick questions written from this study's own rules to see if you may qualify. No account needed to find out.
Arrhythmogenic ventricular cardiomyopathy (AVC) is a genetic condition which affects the heart and can lead to heart failure and rhythm problems, of which, sudden cardiac arrest or death is the most tragic and dangerous. Diagnosis and screening of blood-relatives is very difficult as the disease process can be subtle, but sufficient enough, so that the first event is sudden death.
The Mayo Clinic…
Arrhythmogenic ventricular cardiomyopathy (AVC) is a genetic condition which affects the heart and can lead to heart failure and rhythm problems, of which, sudden cardiac arrest or death is the most tragic and dangerous. Diagnosis and screening of blood-relatives is very difficult as the disease process can be subtle, but sufficient enough, so that the first event is sudden death.
The Mayo Clinic AVC Registry is a collaboration between Mayo Clinic, Rochester, USA and Papworth Hospital, Cambridge University Hospitals, Cambridge, UK. The investigators aim to enroll patients with a history of AVC or sudden cardiac death which may be due to AVC, from the US and UK. Family members who are blood-relatives will also be invited, including those who do not have the condition. Data collected include symptoms, ECG, echocardiographic, MRI, Holter, loop recorder, biopsies, exercise stress testing, blood, buccal and saliva samples.
Objectives of the study:
1. Discover new genes or altered genes (variants) which cause AVC
2. Identify biomarkers which predict (2a) disease onset, (2b) disease progression, (2c) and the likelihood of arrhythmia (ventricular, supra-ventricular and atrial fibrillation)
3. Correlate genotype with phenotype in confirmed cases of AVC followed longitudinally using clinical, electrocardiographic and imaging data.
4. Characterize desmosomal changes in buccal mucosal cells with genotype and validate with gold-standard endomyocardial biopsies
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Patients with a diagnosis of a non-MI SCA who survived
* Patients with a non-MI SCD
* Patient with a SCA associated with seizures, epilepsy, syncope, drowning and near-drowning, where a cardiomyopathy is suspected
* Family member of a patient diagnosed with primary cardiomyopa…
Inclusion Criteria:
* Patients with a diagnosis of a non-MI SCA who survived
* Patients with a non-MI SCD
* Patient with a SCA associated with seizures, epilepsy, syncope, drowning and near-drowning, where a cardiomyopathy is suspected
* Family member of a patient diagnosed with primary cardiomyopathy (including HCM, idiopathic DCM, AVC)
Exclusion Criteria:
* Patients with a clear, unambiguous known cause of SCA or SCD such as myocardial infarction or heart failure secondary to ischemic heart disease
* Significant coronary artery disease (Epicardial coronary artery stenosis \>50%) which can explain degree of LV dysfunction
* Those unwilling to provide written consent or assent
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