Diese Seite wurde automatisch übersetzt und die Genauigkeit der Übersetzung wird nicht garantiert. Bitte wende dich an die englische Version für einen Quelltext.

Dual Energy Focal Ablation of Premature Ventricular Complexes (DUAL-PVC)

8. November 2026 aktualisiert von: Konstantinos Siontis

Dual Energy (RF/PF) Focal Ablation of Premature Ventricular Complexes: the DUAL-PVC Prospective Clinical Trial

The purpose of this research is to understand whether a dual-energy catheter ablation system that uses radiofrequency (RF) and pulsed-field (PF) energy can safely and effectively treat premature ventricular contractions (PVCs).

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Geschätzt)

60

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

    • Minnesota
      • Rochester, Minnesota, Vereinigte Staaten, 55905
        • Mayo Clinic

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

18 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  • ≥10% burden of the target PVC on ambulatory rhythm monitoring within 3 months prior to enrollment. The qualifying ambulatory monitor may be of any duration (1-30 days) per standard of care and may be distinct from the baseline 12-lead Holter required within 30 days before ablation

  • Guideline-supported indication for first-time or redo catheter ablation of PVCs at the judgment of the electrophysiologist. Specifically:

    • Patients with symptomatic PVCs for whom antiarrhythmic medications are ineffective, not tolerated, or not the patient's preference.
    • Suspected or confirmed PVC-induced cardiomyopathy
    • Enrollment of patients requiring a redo procedure will be capped at 30% of planned enrollment (n=18) if the target PVC is the same or similar to that targeted in previous procedure(s), per review of the study investigator
  • Patients with and without known structural heart disease are eligible

  • Ability to undergo study-directed cardiac MRI pre- and post-procedure

  • Ability to undergo study-directed post-ablation coronary CT angiography

  • Ability to provide written informed consent

Exclusion Criteria:

  • LVEF <35%
  • NYHA class IV
  • Presence of multifocal PVCs (>=3 distinct morphologies) on available pre-baseline standard-of-care ambulatory monitor and ECG tracings per the review of the study team.
  • PVCs attributable to a reversible or non-cardiac cause (e.g., electrolyte imbalance or active thyroid disease).
  • History of sustained VT or VF.
  • Current or recent (<4 weeks) decompensated heart failure.
  • Active systemic infection.
  • Contraindication to LGE-MRI or contrast CT.
  • Known allergy to iodinated contrast dye that cannot be adequately managed with pre-medication protocol.
  • Thrombocytopenia (platelet count <50,000/mm³) or known coagulopathy.
  • Contraindication to systemic anticoagulation.
  • Severe valvular disease requiring future intervention.
  • Mechanical valve prosthesis.
  • Pregnancy.
  • Recent acute coronary syndrome (<6 months).
  • Un-revascularized coronary artery disease.
  • Presence of left ventricular assist device (LVAD) or transplanted heart.
  • Presence of intracardiac thrombus.
  • Current use of inotropes.
  • Recent stroke or TIA (<6 months).
  • Presence of a systemic illness likely to limit survival to <1 year.
  • Patient enrollment in other clinical study that could conflict with the current investigation.

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
Experimental: RF-PF Sequential Ablation

Participants are assigned to receive radiofrequency (RF) followed by pulsed-field (PF) at each selected treatment site. For each PF treatment, 24 PF bursts are delivered. Up to three stacked lesions may be performed at the same location.

The THERMOCOOL SMARTTOUCH™ SF Bi-Directional Navigation Catheter is an irrigated, contact-force-sensing catheter used to map the heart and deliver radiofrequency (RF) or pulsed-field (PF) energy to selected treatment sites. The catheter is connected to the TRUPULSE™ Generator, which provides both energy types, and to the nGEN™ Pump, which controls saline irrigation. The system is used with the CARTO™ 3 electroanatomic mapping system and workstation with the VISITAG SURPOINT™ Module to display heart anatomy, catheter location, catheter-to-tissue contact, and treatment information during the procedure.

Experimental: PF-Only Ablation

Participants are assigned to receive pulsed-field (PF) alone at each selected treatment site. For each PF treatment, 24 PF bursts are delivered. Up to three stacked lesions may be performed at the same location.

The THERMOCOOL SMARTTOUCH™ SF Bi-Directional Navigation Catheter is an irrigated, contact-force-sensing catheter used to map the heart and deliver radiofrequency (RF) or pulsed-field (PF) energy to selected treatment sites. The catheter is connected to the TRUPULSE™ Generator, which provides both energy types, and to the nGEN™ Pump, which controls saline irrigation. The system is used with the CARTO™ 3 electroanatomic mapping system and workstation with the VISITAG SURPOINT™ Module to display heart anatomy, catheter location, catheter-to-tissue contact, and treatment information during the procedure.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Number of Participants With Successful Delivery of Ablation Lesions Using the Dual-Energy THERMOCOOL SMARTTOUCH SF Catheter With the TRUPULSE Generator
Zeitfenster: During the index ablation procedure

Feasibility is defined as successful delivery of ablation energy at the targeted premature ventricular complex (PVC) site. Delivery counts as successful only if there is no study device deficiency or malfunction that prevents energy delivery, and no need to convert to a bailout ablation approach.

During the index ablation procedure

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Acute procedural success
Zeitfenster: End of the ablation procedure

Number of participants with elimination of the target premature ventricular contraction by the end of the procedure.

End of the ablation procedure
Participants with greater than 80% reduction in target PVC burden
Zeitfenster: 1 month, 6 months

Number of participants with greater than 80% reduction from baseline in the burden of the target premature ventricular contraction on Holter monitoring.

1 month, 6 months
Change in Short Form Health Survey (SF-36) score
Zeitfenster: Baseline, 1 month, 6 months

The 36-Item Short Form Health Survey (SF-36) is a participant-reported questionnaire that assesses health-related quality of life across eight domains: physical functioning, role limitations due to physical health, bodily pain, general health, vitality, social functioning, role limitations due to emotional problems, and mental health. Total scores range from 0 to 100. Higher scores indicate better health status.

Baseline, 1 month, 6 months
Change in EQ-5D score
Zeitfenster: Baseline, 1 month, 6 months

The EQ-5D is a participant-reported measure of health-related quality of life covering five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Responses across the five dimensions define the participant's health state. Higher scores indicate better health.

Baseline, 1 month, 6 months
Number of Participants With New Coronary Artery Stenosis on Coronary CT Angiography at 6 Months After Ablation
Zeitfenster: 6 months

Total number of patients with new-onset coronary luminal stenosis found on CT coronary angiography

6 months
Total Procedure Time
Zeitfenster: From start to finish of index ablation procedure

Total procedure time will be reported in minutes

From start to finish of index ablation procedure
Electrogram endpoints
Zeitfenster: Intraprocedure

EGM amplitude changes after PF, RF, and RF-PF lesion delivery

Intraprocedure
Ablation Lesion Depth
Zeitfenster: 1 month and 6 months after ablation

Maximum depth of the ablation lesion at the target premature ventricular complex (PVC) site. Depth is measured from the endocardial surface on late gadolinium enhancement (LGE) cardiac MRI. Only participants with an evaluable post-ablation MRI are analyzed. Reported in millimeters.

1 month and 6 months after ablation
Ablation Lesion Width
Zeitfenster: 1 month and 6 months after ablation

Maximum width of the ablation lesion at the target PVC site, measured on LGE cardiac MRI. Only participants with an evaluable post-ablation MRI are analyzed. Reported in millimeters.

1 month and 6 months after ablation
Ablation Lesion Volume
Zeitfenster: 1 month and 6 months after ablation

Total volume of the ablation lesion at the target PVC site, measured on LGE cardiac MRI. Only participants with an evaluable post-ablation MRI are analyzed. Reported in cubic centimeters.

1 month and 6 months after ablation
Number of Radiofrequency (RF) Lesions Delivered per Participant
Zeitfenster: During the index ablation procedure

Total number of RF lesions delivered with the study catheter during the index procedure

During the index ablation procedure
Number of Pulsed-Field (PF) Lesions Delivered per Participant
Zeitfenster: During the index ablation procedure

Total number of PF lesions delivered with the study catheter during the index procedure

During the index ablation procedure

Mitarbeiter und Ermittler

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

Sponsor

Ermittler

  • Hauptermittler: Konstantinos Siontis, MD, Mayo Clinic

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 (Geschätzt)

1. Januar 2027

Primärer Abschluss (Geschätzt)

1. Januar 2029

Studienabschluss (Geschätzt)

1. Juni 2029

Studienanmeldedaten

Zuerst eingereicht

21. Oktober 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

8. November 2026

Zuerst gepostet (Tatsächlich)

13. November 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

13. November 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

8. November 2026

Zuletzt verifiziert

1. November 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 25-013930

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Ja

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .