- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT07610018
Cerebral Microembolization During Pulmonary Vein Isolation: Comparison of Different Pulsed Field Ablation Systems (MICROPFA)
Cerebral Microembolization During Pulmonary Vein Isolation: a Randomized Comparison of Different Pulsed Field Ablation Systems
Přehled studie
Postavení
Podmínky
Detailní popis
This study is designed as a prospective, randomized, parallel-group interventional trial conducted at Clinical Hospital Dubrava, Zagreb, Croatia and University Hospital Center Sisters of Charity, Zagreb, Croatia. The study will include adult patients with paroxysmal or persistent atrial fibrillation who have a clinical indication for catheter ablation with pulmonary vein isolation.
Eligible patients will be randomized using a computer-generated randomization sequence to undergo pulmonary vein isolation with one of the following pulsed field ablation systems: PulseSelect, Varipulse, Farapulse, Sphere-9, or Sphere-360. All procedures will be performed according to standard clinical practice, with continuous periprocedural anticoagulation in accordance with current guidelines.
Cerebral microembolization will be assessed using transcranial Doppler. The examination will be performed immediately before the ablation procedure and repeated after the procedure. The presence and number of microembolic signals will be recorded. This will allow assessment of changes in microembolic signal burden within each group and comparison of these changes between different pulsed field ablation systems.
Demographic, clinical, and procedural data will be collected, including age, sex, type of atrial fibrillation, comorbidities, procedure duration, number of ablation applications, and procedural complications. The study will also record procedure-related clinical neurological events.
The primary outcome will be the difference in the change in the number of microembolic signals before and after the procedure, expressed as ΔMES, between the different pulsed field ablation systems. Secondary outcomes will include within-group changes in microembolic signal burden, incidence of new microembolic signals after the procedure, association between procedural parameters and ΔMES, and occurrence of procedure-related neurological events.
Typ studie
Zápis (Odhadovaný)
Fáze
- Nelze použít
Kontakty a umístění
Studijní kontakt
- Jméno: Ivan Zeljković, PhD,MD
- Telefonní číslo: +385917823289
- E-mail: ivanzeljkov@gmail.com
Studijní záloha kontaktů
- Jméno: Mihovil Santini, MD
- Telefonní číslo: +385958101778
- E-mail: 023miho@gmail.com
Studijní místa
-
-
-
Zagreb, Chorvatsko, 10000
- UH Dubrava
-
Vrchní vyšetřovatel:
- Ivan Zeljković, MD, Phd
-
Dílčí vyšetřovatel:
- Mihovil Santini, MD
-
Zagreb, Chorvatsko, 10000
- University Hospital Center Sisters of Charity, Zagreb, Croatia
-
-
Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dospělý
- Starší dospělý
Přijímá zdravé dobrovolníky
Popis
Inclusion Criteria:
- Age 18 years or older
- Paroxysmal or persistent atrial fibrillation
- Indication for catheter ablation with pulmonary vein isolation
- Feasibility of transcranial Doppler assessment
- Signed informed consent
Exclusion Criteria:
- Recent stroke or transient ischemic attack
- Significant cerebrovascular disease preventing reliable transcranial Doppler assessment
- Severe valvular or structural heart disease
- Pregnancy or breastfeeding
- Inability to receive anticoagulation
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Léčba
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Žádné (otevřený štítek)
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
|---|---|
|
Aktivní komparátor: PulseSelect PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the PulseSelect pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
Pulmonary vein isolation will be performed using the PulseSelect pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
|
Aktivní komparátor: Varipulse PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the Varipulse pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
Pulmonary vein isolation will be performed using the Varipulse pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
|
Aktivní komparátor: Farapulse PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the Farapulse pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
Pulmonary vein isolation will be performed using the Farapulse pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedu
|
|
Aktivní komparátor: Sphere-9 PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the Sphere-9 pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
Pulmonary vein isolation will be performed using the Sphere-9 pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure.
|
|
Aktivní komparátor: Sphere-360 PFA
Participants randomized to this arm will undergo clinically indicated pulmonary vein isolation using the Sphere-360 pulsed field ablation system.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure
|
Pulmonary vein isolation will be performed using the Sphere-360 pulsed field ablation system in patients with paroxysmal or persistent atrial fibrillation undergoing clinically indicated catheter ablation.
Cerebral microembolic signals will be assessed by transcranial Doppler before and after the procedure
|
Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
Change in microembolic signal burden after pulmonary vein isolation
Časové okno: During procedure
|
Difference in the number of cerebral microembolic signals detected by transcranial Doppler before and after pulmonary vein isolation, expressed as ΔMES, compared between the different pulsed field ablation systems.
|
During procedure
|
Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
Within-group change in microembolic signal burden
Časové okno: During procedure
|
Change in the number of cerebral microembolic signals detected by transcranial Doppler before and after pulmonary vein isolation within each pulsed field ablation system group.
|
During procedure
|
|
Incidence of new microembolic signals after ablation
Časové okno: Immediately after the ablation procedure
|
Proportion of participants with newly detected cerebral microembolic signals on transcranial Doppler after pulmonary vein isolation.
|
Immediately after the ablation procedure
|
|
Procedure-related clinical neurological events
Časové okno: From the start of the ablation procedure through 72 hours after the procedure
|
Occurrence of clinically evident neurological events related to the ablation procedure, including stroke or transient ischemic attack.
|
From the start of the ablation procedure through 72 hours after the procedure
|
|
Association between procedure duration and ΔMES
Časové okno: During procedure
|
Association between total procedure duration and the change in cerebral microembolic signal burden before and after pulmonary vein isolation.
|
During procedure
|
|
Association between number of ablation applications and ΔMES
Časové okno: During procedure
|
Association between the number of pulsed field ablation applications delivered during pulmonary vein isolation and the change in cerebral microembolic signal burden before and after the procedure.
|
During procedure
|
Spolupracovníci a vyšetřovatelé
Sponzor
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Odhadovaný)
Primární dokončení (Odhadovaný)
Dokončení studie (Odhadovaný)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Další relevantní podmínky MeSH
Další identifikační čísla studie
- 2026/0423-11
Plán pro data jednotlivých účastníků (IPD)
Plánujete sdílet data jednotlivých účastníků (IPD)?
Informace o lécích a zařízeních, studijní dokumenty
Studuje lékový produkt regulovaný americkým FDA
Studuje produkt zařízení regulovaný americkým úřadem FDA
Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .
Klinické studie na Ablace arytmie
-
Northwestern UniversityUniversity of Wisconsin, StoutDokončenoPerception of Skin of Color Clinics u AfroameričanůSpojené státy
-
Sisli Hamidiye Etfal Training and Research HospitalDokončeno
-
Research Unit Of General Practice, CopenhagenUniversity of Copenhagen; Region Capital Denmark; The Copenhagen General Practice... a další spolupracovníciDokončeno
-
Indiana UniversityNáborPoint of Care ultrazvuk (POCUS)Spojené státy
-
Incyte CorporationDostupnýSTAT1 Gain-of-Function Disease
-
Imperial College LondonDokončenoProof Of Concept StudieSpojené království
-
Asociacion Española Primera en SaludIntensive Care Unit Pasteur HospitalDokončenoPoint of Care ultrazvukUruguay
-
Aga Khan UniversityThe Hospital for Sick Children; Grand Challenges CanadaNeznámýPoint of Care ultrazvukPákistán
-
Research Unit Of General Practice, CopenhagenUniversity of Copenhagen; Region Capital Denmark; The Copenhagen General Practice... a další spolupracovníciDokončeno
-
Kecioren Education and Training HospitalDokončeno