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NCT03305250Active, not recruiting

Arrhythmia Burden, Risk of Sudden Cardiac Death and Stroke in Patients With Fabry Disease

Arrhythmia Burden, Risk of Sudden Cardiac Death and Stroke in Patients With Fabry Disease: the Role of Implantable Loop Recorders

Source: ClinicalTrials.gov · Last updated 14 May 2025

Brief summary (registry, in English)

Fabry disease (FD) is a genetic disorder that leads to progressive accumulation of fat or 'sphingolipid' within the tissues, including the heart muscle and conductive tissue. Improvements in the detection of FD, together with more organised clinical services for rare diseases, has led to a rapid growth in the disease prevalence. Earlier and more frequent diagnosis of asymptomatic individuals before development of the disease itself has focused attention on early detection of organ involvement and closer monitoring of disease progression. Moreover, the introduction of enzyme replacement therapy within the last two decades has changed the natural history of FD as follows: a) increased life expectancy; b) improved morbidity; c) modification of the main cause of morbidity and mortality from renal (kidney) to cardiovascular (heart) events, including heart failure, abnormal heart rhythms, stroke and sudden death. Although symptoms such as palpitations and blackouts are extremely common, information on the frequency of proven abnormal heart rhythms is limited. In addition, the rate and appropriateness of implantation of life-saving devices is very variable, including pacemakers to boost the heart when too slow and cardio-defibrillators that stop the heart when too fast. The main markers of risk in similar diseases such as hypertrophic cardiomyopathy cannot be used in FD. While patients are routinely followed up in clinic with heart tracings and echocardiography (ultrasound of the heart), a recent small study has emphasised that these tests under-estimate the burden of abnormal heart rhythms in patients with advanced FD. The use of continuous heart monitoring with an implantable loop recorder (ILR) has led to a significant change in treatment in 13 out of 15 of FD patients. The investigators believe that more frequent use of ILRs will identify a greater need for change in therapy in many more patients than currently treated, with the aim of reducing morbidity and mortality in this patient cohort. In addition this will provide valuable data to inform an estimate of future risk for these patients.

Status (registry)
Active, not recruiting
Study type
Interventional
Enrollment
169 (actual)
First submitted
21 Sept 2017
Start date
18 Sept 2019
Primary completion date
31 Jul 2026
Lead sponsor
University Hospital Birmingham NHS Foundation Trust
NCT number
NCT03305250

What you commit to

  • Study type: Interventional
  • Participants enrolled: 169
  • From 18 Sept 2019 to the primary completion date, 31 Jul 2026
  • 7 sites in 2 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other illness

  • Patient with an existing cardiac device (PPM, ICD or ILR).
  • Known cardiomyopathy disease causing mutation (e.g. SCN5, MYBPC3)

Age

  • Known coronary artery disease (positive non-invasive imaging, confirmed myocardial infarction, percutaneous or surgical revascularisation). Patients \>40 years old with symptoms that could be from coronary artery disease will have this excluded

Other

  • Known dual pathology:

Who the study is looking for

  • Patients with genotypically or enzymatically confirmed FD
  • Adults \> 18 years of age
  • Evidence of cardiac involvement from FD involving either:
  • Any ECG abnormality associated with FD
  • Low T1 on CMR (below centre-specific normal range according to sex)
  • LVH on transthoracic echo (defined as MWT \>12mm)

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (7)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
University of Sydney
Coordinator of this site? Confirm its status
SydneyAustraliaUnknown status
University Hospitals Birmingham NHS Foundation Trust
Coordinator of this site? Confirm its status
BirminghamUnited KingdomUnknown status
Cambridge University Hospitals NHS Foundation Trust
Coordinator of this site? Confirm its status
CambridgeUnited KingdomUnknown status
Cardiff and Vale University Health Board
Coordinator of this site? Confirm its status
CardiffUnited KingdomUnknown status
Royal Free NHS Foundation Trust
Coordinator of this site? Confirm its status
LondonUnited KingdomUnknown status
Salford Royal NHS Foundation Trust
Coordinator of this site? Confirm its status
ManchesterUnited KingdomUnknown status
Sheffield Teaching Hospitals NHS Foundation Trust
Coordinator of this site? Confirm its status
SheffieldUnited KingdomUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.