Evaluation of Two Different Regimens of the Antiarrhythmic Drug Amiodarone to Maintain Normal Sin… (NCT07273994) | Clinical Trial Compass
RecruitingPhase 4
Evaluation of Two Different Regimens of the Antiarrhythmic Drug Amiodarone to Maintain Normal Sinus Rhythm After Electrical Cardioversion in Patients With Persistent Atrial Fibrillation
Spain312 participantsStarted 2025-11-01
Plain-language summary
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The goal of this clinical trial is to learn if reduced doses of amiodarone can treat atrial fibrillation (AF) effectively while minimizing toxic side effects in patients with persistent AF after electrical cardioversion. The main questions it aims to answer are:
* Can a reduced dose of amiodarone (100 mg/day) maintain sinus rhythm as effectively as the standard dose (200 mg/day) 12 months post electrical cardioversion?
* What are the adverse effects of the standard and reduced doses of amiodarone during 12 months post electrical cardioversion?
* How do genetic polymorphisms affect the efficacy and safety of amiodarone?
* How do amiodarone plasma levels correlate with the maintenance of sinus rhythm and genetic polymorphisms?
Researchers will compare the standard dose (200 mg/day) to the reduced dose (100 mg/day) to see if the reduced dose offers a better balance between efficacy and safety.
Participants will:
* Be treated with full dose amiodarone (200 mg/day) during the first month after electrical cardioversion.
* Be randomized to either continue with the full dose (200 mg/day) or switch to the reduced dose (100 mg/day).
The study is a multicenter, randomized clinical trial involving 312 patients with persistent AF after successful electrical cardioversion. Participants will be followed for 12-18 months to monitor the recurrence of AF and adverse effects.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Patients aged ≥ 18 years
. Documented persistent atrial fibrillation (≥ 7 days in duration)
. Electively referred for Electrical Cardioversion
. Signed informed consent.
Exclusion criteria
. Urgent electrical cardioversion
. Atrial fibrillation post-cardiac surgery
. Previous myocardial infarction
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Maintenance of sinus rhythm
Timeframe: 12 months follow-up
Trial details
NCT IDNCT07273994
SponsorFundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau