Clinical trial Recruiting at 1 site Interventional Ages 18 to 85

Ablation of nerve endings in the right atrium for treating atrial fibrillation

Official title: Understanding the Role of Right Atrial Ectopy-triggering Ganglionated Plexuses in Atrial Fibrillation

Run by Imperial College London · NCT05539040 · Data updated 2026-11-12

This study is testing a new procedure that targets nerve endings in the right side of the heart to help people with persistent atrial fibrillation who haven't found relief from standard treatments.

More Atrial Fibrillation trials

Quick facts

Study typeInterventional
Ages18 Years to 85 Years
SexAll
Enrollment116 (estimated)
SponsorImperial College London
Academic / other
Locations1 site (London)
StatusRecruiting
StartedFebruary 21, 2023
Main results expectedFebruary 21, 2026
Study endsDecember 2, 2027
Registry record updatedSeptember 28, 2023
Trial IDNCT05539040 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 to 85 with symptomatic paroxysmal atrial fibrillation who are suitable for catheter ablation.

Probably not a fit

Patients with contraindications to catheter ablation, severe comorbidities, or those with a life expectancy shorter than the trial duration may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the effectiveness of ablating nerve endings in the right atrium to treat patients with atrial fibrillation (AF) who have not responded to standard left atrial ablation. The research team has previously shown that targeting ganglionated plexuses in the left atrium can reduce AF symptoms with less heart injury. Participants will be recruited from those on the waiting list for AF ablation and will undergo a procedure to assess the impact of right atrial ganglionated plexus ablation. The study aims to provide a new treatment option for patients suffering from persistent AF.

Why it matters

Potential benefit: If successful, this approach could offer a new treatment avenue for patients with atrial fibrillation who have not benefited from standard therapies.

How similar studies have gone: Previous studies have shown promise in ablating ganglionated plexuses in the left atrium, but this approach in the right atrium is novel and untested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Males or females from 18 to 85yrs old
* Symptomatic paroxysmal atrial fibrillation
* Suitable candidate for catheter ablation
* Signed informed consent

Exclusion Criteria:

* Contraindication to catheter ablation
* Contraindication for general anaesthetic
* Presence of a left ventricular thrombus
* Valvular disease that is grade moderate or greater
* Any form of cardiomyopathy
* Severe cerebrovascular disease
* Active gastrointestinal bleeding
* Serum Creatinine \>200umol/L/ on dialysis/ at risk of dialysis
* Active infection or fever
* Life expectancy shorter than the duration of the trial
* Allergy to contrast
* Moderate to severe heart failure and/or NYHA Class III-IV
* Bleeding or clotting disorders or inability to receive heparin
* Uncontrolled diabetes (HbA1c ≥73mmol/mol or HbA1c ≤64mmol/mol and Fasting Blood Glucose ≥9.2mmol/L)
* Malignancy needing therapy
* Pregnancy or women of childbearing potential not using a highly effective method of contraception
* Unable to give informed consent

Where it's running

  • Hammersmith Hospital
    London, United Kingdom
    Recruiting

Study contacts

  • Principal investigator: Prapa Kanagaratnam, MBBChir, PhD — Imperial College London
  • Study coordinator: Jamie Kay, MBBS BMedSci
  • Email: jamie.kay@imperial.ac.uk
  • Phone: 02033131000

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.