Heart rhythm mystery: study seeks clues to AF in Thick-Hearted patients
NCT ID NCT07454135
First seen Jun 24, 2026 · Last updated Sep 11, 2026 · Updated 2 times
Summary
This study will look at 40 people with both hypertrophic cardiomyopathy (HCM) and atrial fibrillation (AF) to understand why AF is more common and harder to treat in HCM. Researchers will measure electrical signals in the heart and use advanced imaging. The goal is to find clues that could lead to better treatments for this group.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could point toward better treatments for atrial fibrillation in people with hypertrophic cardiomyopathy.
- What could go wrong
- This is an observational study that does not test a new treatment directly. It may not lead to immediate changes in care.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2026
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients with hypertrophic cardiomyopathy and atrial fibrillation requiring atrial fibrillation ablation.
- Ages
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Paroxysmal or persistent atrial fibrillation * Diagnosis of hypertrophic cardiomyopathy * Patient planning to proceed to atrial fibrillation ablation following clinical consultation * Age 18-80 years * Able and willing to provide written informed consent * Able and willing to comply with study follow up requirements Exclusion Criteria: * Any clinical contra-indication to ablation * Any disease limiting life expectancy to \<1 year * Potential participant currently pregnant or breast feeding * Contraindication to MRI including renal dysfunction (eGFR\<30ml/min) * Unable to understand verbal or written explanations given in English
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Guy's and St Thomas' NHS Foundation Trust
RECRUITINGLondon, United Kingdom
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Other studies related to the condition(s) this trial covers.
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