Tailored heart procedure aims to beat atrial fibrillation
NCT ID NCT05633303
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests a personalized approach to catheter ablation for persistent atrial fibrillation (AF), a common heart rhythm disorder. Researchers will identify specific areas in the heart that drive AF and target them with ablation, aiming to improve success rates. The trial involves 160 participants and will compare outcomes over 12 months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- catheter ablation guided by rate-dependent conduction velocity (RDCV) slowing sites
- What this could lead to
- If successful, this could lead to more effective, personalized ablation procedures for persistent atrial fibrillation, reducing recurrence and improving patient outcomes.
- What could go wrong
- This is an early-stage study with 160 participants, so results may not apply to all patients. The approach is complex and may not improve success rates significantly.
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.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 160 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2022
- Expected to finish
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Oct 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.
- Ages
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18 years and older
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients undergoing catheter ablation for persistent AF (\<24 months AF duration and no previous left atrial ablation). * Able to provide informed consent Exclusion Criteria: * Unwillingness to sign consent * Age \<18 years * Contraindications for catheter ablation procedure
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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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Barts Heart Centre, Barts Health NHS trust
RECRUITINGLondon, EC1A 7BE, United Kingdom
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Two ways to quiet a racing heart: trial pits hybrid ablation against standard catheter treatment
- Extra vein ablation tested to keep persistent AFib from returning
- Duel of ablation catheters: which wins for persistent AF?
- Can a new drug stop long atrial fibrillation episodes?
- Which ablation method wins for tough atrial fibrillation cases?
- Can a diabetes drug keep the heart in rhythm?