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Empirical Anatomy-Based Ablation vs Emphasize Map-Guided Substrate Ablation in Persistent Atrial Fibrillation : (COMPASS-AF) (COMPASS-AF)

21. Juli 2026 aktualisiert von: Ju Youn Kim, Samsung Medical Center

This study is aimed to compare the clinical efficacy of two different catheter ablation strategies in patients with persistent atrial fibrillation.

Participants will be randomized 1:1 into either the Anatomy-based group or the Emphasize map-guided group

  • Anatomy-based group : Pulmonary vein isolation (PVI) using pulsed-field ablation (PFA) with a single-shot multielectrode catheter.
  • Emphasize map-guided group : PVI using radiofrequency (RF) ablation followed by additional EnSite X-guided pathologic substrate modification.

Participants will be followed for 1 year to compare the incidence of any atrial tachyarrhythmia and other clinical parameters between the two groups.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Pulsed-field ablation (PFA) is increasingly being adopted in clinical practice due to its advantages in shortening procedure times and reducing the incidence of complications. While the majority of PFA-related research has focused on PVI-centric strategies, recent studies have reported that posterior wall isolation (PWI) using PFA can also be performed safely. However, sufficient clinical evidence regarding the efficacy of additional ablation strategies beyond PVI in patients with persistent atrial fibrillation (AF) has yet to be established.

The Emphasize mapping system, a software feature within the EnSite X platform, is designed to simultaneously visualize Voltage maps, Peak frequency, and CFAE-related information. Unlike the individual analysis of each parameter, this integrated approach allows for a more precise identification of electrophysiologically significant pathologic substrates by evaluating the complex characteristics of electrical signals holistically. Currently, however, Emphasize-guided ablation is technically limited to the use of radiofrequency (RF) energy.

Persistent AF is characterized by complex and heterogeneous mechanisms, meaning a single, uniform ablation strategy may not yield consistent clinical outcomes across all patients. Consequently, it is hypothesized that an individualized substrate ablation strategy guided by functional mapping may be more effective than a conventional, empirical anatomy-based approach.

Therefore, this study aims to compare the clinical efficacy and safety of an empirical anatomy-based ablation strategy using PFA versus an individualized Emphasize map-guided substrate ablation strategy in patients with persistent AF.

Studientyp

Interventionell

Einschreibung (Geschätzt)

360

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

    • Seoul
      • Seoul, Seoul, Südkorea, 06351
        • Rekrutierung
        • Samsung Medical Center
        • Kontakt:
      • Seoul, Seoul, Südkorea, 06351
        • Noch keine Rekrutierung
        • Samsung Medical Center
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  • Adults aged 19 years or older who have voluntarily provided written informed consent to participate in the study
  • Patients diagnosed with persistent atrial fibrillation (AF) who are scheduled to undergo catheter ablation for AF.

Exclusion Criteria:

  • History of prior catheter ablation or MAZE surgery for atrial fibrillation.
  • Left atrial (LA) diameter exceeding 60 mm.
  • Patients with end-stage renal disease (ESRD).
  • History of prior open-heart surgery.
  • Women who are pregnant, lactating, or of childbearing potential.
  • Heart failure corresponding to New York Heart Association (NYHA) functional class IV.
  • Acute coronary syndrome (ACS) experienced within the past 3 months.
  • Patients with terminal illness and a life expectancy of less than one year.
  • Any other condition that the investigator deems inappropriate for participation in the study.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Aktiver Komparator: Anatomy-based group
In the empirical anatomy-based ablation strategy group, pulmonary vein isolation (PVI) will be performed using pulsed-field ablation (PFA) with a single-shot multielectrode catheter. For each pulmonary vein, approximately 4-10 pulse applications will be delivered depending on the catheter position, with each application consisting of several seconds of pulse delivery. The catheter will be positioned around the PV ostia, and electrical isolation will be achieved by utilizing various catheter configurations as necessary. The energy settings and application methods for PFA in this study will follow the manufacturer's recommended protocols and established methods from prior clinical studies. Additionally, the creation of supplementary lesion sets is permitted at the operator's discretion.
Experimental: Emphasize map-guided group
In the Emphasize map-guided substrate ablation group, ablation will be performed using a contact force-sensing irrigated radiofrequency (RF) catheter. Following pulmonary vein isolation (PVI), an Emphasize map will be acquired during atrial fibrillation (AF) using the EnSite X mapping system. Based on this map, electrophysiologically significant pathologic substrates will be evaluated, and additional substrate ablation will be performed. Subsequently, electrical cardioversion will be conducted to restore sinus rhythm. If sinus rhythm is not maintained or if AF is re-induced, an additional Emphasize map may be acquired in the right atrium (RA), and RA substrate ablation can be performed if necessary.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Recurrence of atrial tachyarrhythmia
Zeitfenster: From 3 months to 12 months after the index procedure

Any documented atrial tachyarrhythmias excluding the initial 3-month blanking period. Documented atrial tachyarrhythmias (atrial fibrillation, atrial flutter, atrial tachycardia) were defined as follows:

  • Atrial tachyarrhythmias documented in 12 lead ECG
  • Atrial tachyarrhythmias of more than 30 seconds in Holter monitoring Recorded as a binary outcome (presence or absence of recurrence)
From 3 months to 12 months after the index procedure

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Atrial fibrillation burden
Zeitfenster: From 3 months to 12 months after the index procedure
The proportion of time spent in atrial fibrillation or atrial flutter during rhythm monitoring .The burden will be assessed as percent(%) using Holter monitoring.
From 3 months to 12 months after the index procedure
Repeat ablation
Zeitfenster: From index procedure to 12 months
Any additional catheter ablation procedure performed after the index procedure for documented recurrent atrial tachyarrhythmia during the follow-up period.
From index procedure to 12 months
Use of antiarrhythmic drug therapy
Zeitfenster: From 3 months to 12 months after the index procedure
Percentage of patients prescribed any Class I or Class III antiarrhythmic Temporary use during the blanking period (first 3 months) will not be counted.
From 3 months to 12 months after the index procedure
Atrial Fibrillation Effect on Quality-of-life (AFEQT) questionnaire score
Zeitfenster: From index procedure to 12 months
The AFEQT is outcome instrument designed to measure the impact of AF on a patient's health-related quality of life. Scores range from 0 to 100, with higher scores indicating a better health-related quality of life
From index procedure to 12 months
Stroke
Zeitfenster: From index procedure to 12 months
Proportion of participants experiencing a new focal or global neurological deficit lasting ≥24 hours with imaging evidence of ischemic or hemorrhagic stroke. Transient ischemic attack will not be included.
From index procedure to 12 months
Cardiovascular hospitalization
Zeitfenster: From index procedure to 12 months

Proportion of participants experiencing hospitalization primarily due to a cardiovascular cause, including:

  • Atrial tachyarrhythmia recurrence
  • Heart failure exacerbation
  • Acute coronary syndrome
  • Cardiovascular procedural complications
From index procedure to 12 months
Bleeding event
Zeitfenster: From index procedure to 12 months

Proportion of participants experiencing bleeding events.

Bleeding event will be classified according to the International Society on Thrombosis and Haemostasis(ISTH) criteria:

  • Major bleeding
  • Clinically relevant non-major bleeding
From index procedure to 12 months
All-cause mortality
Zeitfenster: From index procedure to 12 months
Death due to any cause occurring during the follow-up period.
From index procedure to 12 months
Procedure-related complications
Zeitfenster: From index procedure to 30days

Proportion of participants experiencing any complication occurring during or within 30 days after the index procedure, including:

  • Cardiac tamponade
  • Vascular access complication
  • Pulmonary vein stenosis
  • Esophageal injury
  • Phrenic nerve injury
  • Major bleeding.
From index procedure to 30days
Procedure time
Zeitfenster: at the index procedure
Total procedure time measured in minutes from vascular access puncture to removal of all catheters at the end of the procedure.
at the index procedure
Radiation time
Zeitfenster: at the index procedure
Total fluoroscopy exposure time measured in minutes.
at the index procedure
Left atrial reservoir strain
Zeitfenster: From index procedure to 12 months
Measured as percentage by echocardiography
From index procedure to 12 months

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Mitarbeiter

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Allgemeine Veröffentlichungen

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

19. Mai 2026

Primärer Abschluss (Geschätzt)

31. Dezember 2030

Studienabschluss (Geschätzt)

31. Dezember 2030

Studienanmeldedaten

Zuerst eingereicht

21. Juli 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

21. Juli 2026

Zuerst gepostet (Tatsächlich)

24. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

24. Juli 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

21. Juli 2026

Zuletzt verifiziert

1. April 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Andere Studien-ID-Nummern

  • SMC 2026-02-103
  • KCT0011829 (Andere Kennung: Korea National Institute of Health)

Plan für individuelle Teilnehmerdaten (IPD)

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UNENTSCHIEDEN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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