Atrial FibrillationPLAI-AFNCT05723536
PLAI-AF Trial: Hybrid Endo-epicardial Partial Left Atrial Isolation vs. Endocardial Ablation in Patients With Persistent Atrial Fibrillation
A study testing Partial Left Atrial Isolation and Catheter Ablation in people with Atrial Fibrillation and Persistent Atrial Fibrillation, run by Hospital Clinic of Barcelona at 1 site in Spain.
Trial summary
In patients with symptomatic atrial fibrillation (AF), current clinical guidelines recommend ablation for rhythm control. While percutaneous ablation has good results in patients with paroxysmal AF, it is not clear which is the best technique in patients with persistent or long-standing persistent AF. Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Atrial Fibrillation, Persistent Atrial Fibrillation, Arrythmia
- What is being tested?
- Partial Left Atrial Isolation and Catheter Ablation
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 80 participants
- Where
- 1 siteSpain
- Study dates
- 23 Oct 2023to 31 Dec 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients between the ages of 18 and 75, both inclusive, at the time of the consent date.
- Patients with persistent atrial fibrillation refractory to at least one antiarrhythmic drug (Class I or III).
- Signature of written informed consent.
Who cannot join
- Continuous Persistent atrial fibrillation of more than 4 years.
- Moderate to severe valvular heart disease.
- Severe atrial dilatation (left appendage AP diameter > 55 mm or > 50ml/m2).
- Patients requiring concomitant cardiac surgery or with previous cardiac surgery.
- Left ventricular ejection fraction <40%.
- History of pericarditis.
Show all 17Show fewer
- Previous stroke.
- Presence of active infection or sepsis, esophageal ulcer stricture and/or esophageal varices.
- Patients with renal dysfunction defined as GFR less than or equal to 40 ml/min/m2.
- Contraindication for chronic anticoagulation.
- Patients who have undergone prior left atrial catheter ablation for atrial fibrillation or who are receiving treatment for ventricular arrhythmia.
- Patients with severe chronic obstructive pulmonary disease considered GOLD III.
- Patients with active neoproliferative disease or other concomitant disease where the medical team considers that ablation places the patient at unacceptable risk.
- Pregnant, lactating women.
- Patients who have previously presented allergic reactions to gadolinium.
- Patients with claustrophobia that makes it impossible to perform nuclear magnetic resonance.
- Persistent AF < 3 months
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Spain1 site, 1 recruiting
- Recruiting
Hospital Clínic de Barcelona
Barcelona
Manuel Castellà, MD PhD, +34932275515, mcaste@clinic.cat
Nuria Pichel, MSc, +34932275733, pichel@clinic.cat
About this study
In patients with symptomatic atrial fibrillation (AF), current clinical guidelines recommend ablation for rhythm control.
While percutaneous ablation has good results in patients with paroxysmal AF, it is not clear which is the best technique in patients with persistent or long-standing persistent AF. Our group performed the first randomized study of thoracoscopic epicardial ablation vs. endocardial catheter ablation (FAST Trial), which showed better results for epicardial ablation but with a higher rate of complications. Hybrid epicardial and endocardial ablation strategies have recently been described sequentially, showing better results in patients with persistent AF, but 40% of patients are still refractory to ablation.
Read more
Our study aims to compare the conventional strategy (catheter ablation) with partial electrical isolation of the left atrium endo-epicardially (pulmonary veins, posterior wall and left atrial appendage) in a single procedure in the group of patients most refractory to ablation. Likewise, using magnetic resonance imaging and echocardiography to analyze the atrial remodeling factors that can predict the success and failure of both therapies.
Methodology: A 1:1 randomized clinical trial in patients with persistent and long-standing persistent AF in two groups: conventional ablation vs. partial endo-epicardial isolation. Prior to ablation, cardioversion will be performed and functionality and atrial size will be verified by echocardiography, delayed-enhancement / 4D flow magnetic resonance imaging (MRI), andelectrocardiographic imaging (ECGi) will detect the degree of fibrosis and atrial remodeling. During the ablation procedure, a continuous rhythm recording device will be implanted. Likewise, at three months the MRI will be repeated to detect post-ablation fibrosis. At six months the echocardiography will be performed to assess atrial function and size. AF recurence will be assessed using an internal loop recorder within a 1-year follow-up.
Main Expected Results: The expected results include: 1. an improvement in the rate of patients with no atrial arrhythmias recurrence in patients undergoing endo-epicardial ablation; 2. a lower AF burden in patients undergoing endo-epicardial ablation who have had recurrence; 3. To know the degree of atrial remodeling (including atrial fibrosis) associated with the success/failure of each technique; 4. To know the degree of fibrosis that both techniques produce; 5. To know the degree of ventricular function associated with the success/failure of each technique; 6. To know the degree of potentially lost atrial function; 7. To Compare the safety of both techniques
- Being tested
- Partial Left Atrial Isolation, Catheter Ablation
- Medical subject headings
- Atrial Fibrillation, Arrhythmias, Cardiac
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Partial Left Atrial IsolationProcedure or surgery
Partial electrical isolation of the left atrium endo-epicardially (pulmonary veins, posterior wall and left atrial appendage) and left atrial appendage isolation using Atriclip (Atricure, Mason OH, USA) in a single procedure in patients with persistent atrial fibrillation.
Catheter AblationProcedure or surgery
Endocavity catheter ablation of persistent atrial fibrillation : pulmonary vein isolation and posterior wall isolation
| Study group | Role | What they receive |
|---|---|---|
| PLAI (Partial Left Atrial Isolation) | Experimental | Partial electrical isolation of the left atrium endo-epicardially (pulmonary veins, posterior wall and left atrial appendage) and left atrial appendage isolation using Atriclip (Atricure, Mason OH, USA) in a single procedure in patients with persistent atrial fibrillation. Receives: Procedure: Partial Left Atrial Isolation |
| CA (Catheter Ablation) | Active comparator | Endocavity catheter ablation of persistent atrial fibrillation : pulmonary vein isolation and posterior wall isolation Receives: Procedure: Catheter Ablation |
What is being measured
The primary outcome is the main question the study is designed to answer.
Absence of atrial arrhythmia
Success or failure to be free of atrial arrhythmias (AF/AT/AFL) in the absence of class I and III antiarrhythmic drugs, or with the same antiarrhythmic treatment prior to study inclusion, after the 3-month blank period, during 12 months after the procedure and measured by internal loop recorder.
Measured: 3-12 months post-surgery
Secondary outcomes (3)
90% reduction in baseline AF burden
90% reduction in baseline AF burden in the absence of a new/increased dose of class I/III antiarrhythmic medication, as measured by implantable ECG recorder.
Measured: 3-12 months post-surgery
Pre-procedure atrial remodeling
Pre-procedure atrial remodelling by MRI measuring fibrosis grade. Pre-procedure atrial remodelling by echocardiogram measuring size and function. Pre-procedure assessment of electrical atrial remodeling in AF and sinus rhythm using ECGi. Both measurements are in relation to primary endpoint success/failure in both groups.
Measured: 3-months pre-surgery to 12 months post-surgery
Post-procedure atrial remodeling
Post-procedure atrial remodelling by MRI measuring fibrosis grade. Post-procedure atrial remodelling by echocardiogram measuring size and function. Both measurements are in relation to primary endpoint success/failure in both groups.
Measured: 3-12 months post-surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Feb 2023
- Study start23 Oct 2023
- Primary completion31 Dec 2027 (estimated)
- Study completion31 Dec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (9)Papers the sponsor has linked to this study.
- Other trials for Atrial FibrillationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- 1:1 randomized clinical trial in patients with persistent and long-standing persistent AF in two groups: conventional ablation vs partial endo-epicardial isolation.
- Masking
- None (open label)
- Enrolment
- 80 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Hospital Clinic of Barcelona
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05723536
- Sponsor's protocol ID
- HCB/2022/1059
- Acronym
- PLAI-AF
- Status last verified
- Sep 2026
- First submitted
- 2 Feb 2023
- Last updated
- 18 Sep 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Bisbal F, Guiu E, Cabanas-Grandio P, Berruezo A, Prat-Gonzalez S, Vidal B, Garrido C, Andreu D, Fernandez-Armenta J, Tolosana JM, Arbelo E, de Caralt TM, Perea RJ, Brugada J, Mont L. CMR-guided approach to localize and ablate gaps in repeat AF ablation procedure. JACC Cardiovasc Imaging. 2014 Jul;7(7):653-63. doi: 10.1016/j.jcmg.2014.01.014. Epub 2014 May 7.
PubMed 24813966Bisbal F, Benito E, Teis A, Alarcon F, Sarrias A, Caixal G, Villuendas R, Garre P, Soto N, Cozzari J, Guasch E, Junca G, Prat-Gonzalez S, Perea RJ, Bazan V, Tolosana JM, Arbelo E, Bayes-Genis A, Mont L. Magnetic Resonance Imaging-Guided Fibrosis Ablation for the Treatment of Atrial Fibrillation: The ALICIA Trial. Circ Arrhythm Electrophysiol. 2020 Nov;13(11):e008707. doi: 10.1161/CIRCEP.120.008707. Epub 2020 Oct 8.
PubMed 33031713Whitlock RP, Belley-Cote EP, Paparella D, Healey JS, Brady K, Sharma M, Reents W, Budera P, Baddour AJ, Fila P, Devereaux PJ, Bogachev-Prokophiev A, Boening A, Teoh KHT, Tagarakis GI, Slaughter MS, Royse AG, McGuinness S, Alings M, Punjabi PP, Mazer CD, Folkeringa RJ, Colli A, Avezum A, Nakamya J, Balasubramanian K, Vincent J, Voisine P, Lamy A, Yusuf S, Connolly SJ; LAAOS III Investigators. Left Atrial Appendage Occlusion during Cardiac Surgery to Prevent Stroke. N Engl J Med. 2021 Jun 3;384(22):2081-2091. doi: 10.1056/NEJMoa2101897. Epub 2021 May 15.
PubMed 33999547Yorgun H, Canpolat U, Kocyigit D, Coteli C, Evranos B, Aytemir K. Left atrial appendage isolation in addition to pulmonary vein isolation in persistent atrial fibrillation: one-year clinical outcome after cryoballoon-based ablation. Europace. 2017 May 1;19(5):758-768. doi: 10.1093/europace/eux005.
PubMed 28340073DeLurgio DB, Crossen KJ, Gill J, Blauth C, Oza SR, Magnano AR, Mostovych MA, Halkos ME, Tschopp DR, Kerendi F, Taigen TL, Shults CC, Shah MH, Rajendra AB, Osorio J, Silver JS, Hook BG, Gilligan DM, Calkins H. Hybrid Convergent Procedure for the Treatment of Persistent and Long-Standing Persistent Atrial Fibrillation: Results of CONVERGE Clinical Trial. Circ Arrhythm Electrophysiol. 2020 Dec;13(12):e009288. doi: 10.1161/CIRCEP.120.009288. Epub 2020 Nov 13.
PubMed 33185144Maesen B, Pison L, Vroomen M, Luermans JG, Vernooy K, Maessen JG, Crijns HJ, La Meir M. Three-year follow-up of hybrid ablation for atrial fibrillation. Eur J Cardiothorac Surg. 2018 Apr 1;53(suppl_1):i26-i32. doi: 10.1093/ejcts/ezy117.
PubMed 29590387Boersma LV, Castella M, van Boven W, Berruezo A, Yilmaz A, Nadal M, Sandoval E, Calvo N, Brugada J, Kelder J, Wijffels M, Mont L. Atrial fibrillation catheter ablation versus surgical ablation treatment (FAST): a 2-center randomized clinical trial. Circulation. 2012 Jan 3;125(1):23-30. doi: 10.1161/CIRCULATIONAHA.111.074047. Epub 2011 Nov 14.
PubMed 22082673Castella M, Kotecha D, van Laar C, Wintgens L, Castillo Y, Kelder J, Aragon D, Nunez M, Sandoval E, Casellas A, Mont L, van Boven WJ, Boersma LVA, van Putte BP. Thoracoscopic vs. catheter ablation for atrial fibrillation: long-term follow-up of the FAST randomized trial. Europace. 2019 May 1;21(5):746-753. doi: 10.1093/europace/euy325.
PubMed 30715255Verma A, Jiang CY, Betts TR, Chen J, Deisenhofer I, Mantovan R, Macle L, Morillo CA, Haverkamp W, Weerasooriya R, Albenque JP, Nardi S, Menardi E, Novak P, Sanders P; STAR AF II Investigators. Approaches to catheter ablation for persistent atrial fibrillation. N Engl J Med. 2015 May 7;372(19):1812-22. doi: 10.1056/NEJMoa1408288.
PubMed 25946280
Study at a glance
From the registry record, last updated by the sponsor on 18 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- PLAI-AF Trial: Hybrid Endo-epicardial Partial Left Atrial Isolation vs. Endocardial Ablation in Patients With Persistent Atrial Fibrillation
- ClinicalTrials.gov ID
- NCT05723536
- Acronym / sponsor ID
- PLAI-AF / HCB/2022/1059
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 80 participants (estimated)
- Lead sponsor
- Hospital Clinic of BarcelonaUniversity, hospital or other
- Study start
- 23 Oct 2023 (actual)
- Primary completion
- 31 Dec 2027 (estimated)
- Study completion
- 31 Dec 2027 (estimated)
- First posted
- 10 Feb 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In patients with symptomatic atrial fibrillation (AF), current clinical guidelines recommend ablation for rhythm control.
While percutaneous ablation has good results in patients with paroxysmal AF, it is not clear which is the best technique in patients with persistent or long-standing persistent AF. Our group performed the first randomized study of thoracoscopic epicardial ablation vs. endocardial catheter ablation (FAST Trial), which showed better results for epicardial ablation but with a higher rate of complications. Hybrid epicardial and endocardial ablation strategies have recently been described sequentially, showing better results in patients with persistent AF, but 40% of patients are still refractory to ablation.
Our study aims to compare the conventional strategy (catheter ablation) with partial electrical isolation of the left atrium endo-epicardially (pulmonary veins, posterior wall and left atrial appendage) in a single procedure in the group of patients most refractory to ablation. Likewise, using magnetic resonance imaging and echocardiography to analyze the atrial remodeling factors that can predict the success and failure of both therapies.
Methodology: A 1:1 randomized clinical trial in patients with persistent and long-standing persistent AF in two groups: conventional ablation vs. partial endo-epicardial isolation. Prior to ablation, cardioversion will be performed and functionality and atrial size will be verified by echocardiography, delayed-enhancement / 4D flow magnetic resonance imaging (MRI), andelectrocardiographic imaging (ECGi) will detect the degree of fibrosis and atrial remodeling. During the ablation procedure, a continuous rhythm recording device will be implanted. Likewise, at three months the MRI will be repeated to detect post-ablation fibrosis. At six months the echocardiography will be performed to assess atrial function and size. AF recurence will be assessed using an internal loop recorder within a 1-year follow-up.
Main Expected Results: The expected results include: 1. an improvement in the rate of patients with no atrial arrhythmias recurrence in patients undergoing endo-epicardial ablation; 2. a lower AF burden in patients undergoing endo-epicardial ablation who have had recurrence; 3. To know the degree of atrial remodeling (including atrial fibrosis) associated with the success/failure of each technique; 4. To know the degree of fibrosis that both techniques produce; 5. To know the degree of ventricular function associated with the success/failure of each technique; 6. To know the degree of potentially lost atrial function; 7. To Compare the safety of both techniques
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- 1:1 randomized clinical trial in patients with persistent and long-standing persistent AF in two groups: conventional ablation vs partial endo-epicardial isolation.
| Arm | Type | Receives |
|---|---|---|
| PLAI (Partial Left Atrial Isolation) | Experimental | Procedure: Partial Left Atrial IsolationPartial electrical isolation of the left atrium endo-epicardially (pulmonary veins, posterior wall and left atrial appendage) and left atrial appendage isolation using Atriclip (Atricure, Mason OH, USA) in a single procedure in patients with persistent atrial fibrillation. |
| CA (Catheter Ablation) | Active comparator | Procedure: Catheter AblationEndocavity catheter ablation of persistent atrial fibrillation : pulmonary vein isolation and posterior wall isolation |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Patients between the ages of 18 and 75, both inclusive, at the time of the consent date.
- Patients with persistent atrial fibrillation refractory to at least one antiarrhythmic drug (Class I or III).
- Signature of written informed consent.
Key exclusion criteria (17 listed)
- Continuous Persistent atrial fibrillation of more than 4 years.
- Moderate to severe valvular heart disease.
- Severe atrial dilatation (left appendage AP diameter > 55 mm or > 50ml/m2).
- Patients requiring concomitant cardiac surgery or with previous cardiac surgery.
- Left ventricular ejection fraction <40%.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Partial Left Atrial IsolationPartial electrical isolation of the left atrium endo-epicardially (pulmonary veins, posterior wall and left atrial appendage) and left atrial appendage isolation using Atriclip (Atricure, Mason OH, USA) in a single procedure in patients with persistent atrial fibrillation. | Procedure or surgery | PLAI (Partial Left Atrial Isolation) |
| Catheter AblationEndocavity catheter ablation of persistent atrial fibrillation : pulmonary vein isolation and posterior wall isolation | Procedure or surgery | CA (Catheter Ablation) |
Primary outcome
Absence of atrial arrhythmia
Time frame: 3-12 months post-surgery
Success or failure to be free of atrial arrhythmias (AF/AT/AFL) in the absence of class I and III antiarrhythmic drugs, or with the same antiarrhythmic treatment prior to study inclusion, after the 3-month blank period, during 12 months after the procedure and measured by internal loop recorder.
3 secondary outcomes
90% reduction in baseline AF burden
Time frame: 3-12 months post-surgery
Pre-procedure atrial remodeling
Time frame: 3-months pre-surgery to 12 months post-surgery
Post-procedure atrial remodeling
Time frame: 3-12 months post-surgery
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Sep 2026.
- Background: PubMed 24813966Bisbal F, Guiu E, Cabanas-Grandio P, Berruezo A, Prat-Gonzalez S, Vidal B, Garrido C, Andreu D, Fernandez-Armenta J, Tolosana JM, Arbelo E, de Caralt TM, Perea RJ, Brugada J, Mont L. CMR-guided approach to localize and ablate gaps in repeat AF ablation procedure. JACC Cardiovasc Imaging. 2014 Jul;7(7):653-63. doi: 10.1016/j.jcmg.2014.01.014. Epub 2014 May 7.
- Background: PubMed 33031713Bisbal F, Benito E, Teis A, Alarcon F, Sarrias A, Caixal G, Villuendas R, Garre P, Soto N, Cozzari J, Guasch E, Junca G, Prat-Gonzalez S, Perea RJ, Bazan V, Tolosana JM, Arbelo E, Bayes-Genis A, Mont L. Magnetic Resonance Imaging-Guided Fibrosis Ablation for the Treatment of Atrial Fibrillation: The ALICIA Trial. Circ Arrhythm Electrophysiol. 2020 Nov;13(11):e008707. doi: 10.1161/CIRCEP.120.008707. Epub 2020 Oct 8.
- Background: PubMed 33999547Whitlock RP, Belley-Cote EP, Paparella D, Healey JS, Brady K, Sharma M, Reents W, Budera P, Baddour AJ, Fila P, Devereaux PJ, Bogachev-Prokophiev A, Boening A, Teoh KHT, Tagarakis GI, Slaughter MS, Royse AG, McGuinness S, Alings M, Punjabi PP, Mazer CD, Folkeringa RJ, Colli A, Avezum A, Nakamya J, Balasubramanian K, Vincent J, Voisine P, Lamy A, Yusuf S, Connolly SJ; LAAOS III Investigators. Left Atrial Appendage Occlusion during Cardiac Surgery to Prevent Stroke. N Engl J Med. 2021 Jun 3;384(22):2081-2091. doi: 10.1056/NEJMoa2101897. Epub 2021 May 15.
- Background: PubMed 28340073Yorgun H, Canpolat U, Kocyigit D, Coteli C, Evranos B, Aytemir K. Left atrial appendage isolation in addition to pulmonary vein isolation in persistent atrial fibrillation: one-year clinical outcome after cryoballoon-based ablation. Europace. 2017 May 1;19(5):758-768. doi: 10.1093/europace/eux005.
- Background: PubMed 33185144DeLurgio DB, Crossen KJ, Gill J, Blauth C, Oza SR, Magnano AR, Mostovych MA, Halkos ME, Tschopp DR, Kerendi F, Taigen TL, Shults CC, Shah MH, Rajendra AB, Osorio J, Silver JS, Hook BG, Gilligan DM, Calkins H. Hybrid Convergent Procedure for the Treatment of Persistent and Long-Standing Persistent Atrial Fibrillation: Results of CONVERGE Clinical Trial. Circ Arrhythm Electrophysiol. 2020 Dec;13(12):e009288. doi: 10.1161/CIRCEP.120.009288. Epub 2020 Nov 13.
- Background: PubMed 29590387Maesen B, Pison L, Vroomen M, Luermans JG, Vernooy K, Maessen JG, Crijns HJ, La Meir M. Three-year follow-up of hybrid ablation for atrial fibrillation. Eur J Cardiothorac Surg. 2018 Apr 1;53(suppl_1):i26-i32. doi: 10.1093/ejcts/ezy117.
- Background: PubMed 22082673Boersma LV, Castella M, van Boven W, Berruezo A, Yilmaz A, Nadal M, Sandoval E, Calvo N, Brugada J, Kelder J, Wijffels M, Mont L. Atrial fibrillation catheter ablation versus surgical ablation treatment (FAST): a 2-center randomized clinical trial. Circulation. 2012 Jan 3;125(1):23-30. doi: 10.1161/CIRCULATIONAHA.111.074047. Epub 2011 Nov 14.
- Background: PubMed 30715255Castella M, Kotecha D, van Laar C, Wintgens L, Castillo Y, Kelder J, Aragon D, Nunez M, Sandoval E, Casellas A, Mont L, van Boven WJ, Boersma LVA, van Putte BP. Thoracoscopic vs. catheter ablation for atrial fibrillation: long-term follow-up of the FAST randomized trial. Europace. 2019 May 1;21(5):746-753. doi: 10.1093/europace/euy325.
- Background: PubMed 25946280Verma A, Jiang CY, Betts TR, Chen J, Deisenhofer I, Mantovan R, Macle L, Morillo CA, Haverkamp W, Weerasooriya R, Albenque JP, Nardi S, Menardi E, Novak P, Sanders P; STAR AF II Investigators. Approaches to catheter ablation for persistent atrial fibrillation. N Engl J Med. 2015 May 7;372(19):1812-22. doi: 10.1056/NEJMoa1408288.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Partial Left Atrial Isolation and Catheter Ablation in people with Atrial Fibrillation and Persistent Atrial Fibrillation, run by Hospital Clinic of Barcelona at 1 site in Spain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 18 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Manuel Castellà, MD PhD (+34932275515, mcaste@clinic.cat), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Absence of atrial arrhythmia (time frame: 3-12 months post-surgery). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05723536, which also lists 9 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Sep 2026.