- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT00123344
Atrial Pacing for Termination and Prevention of Atrial Fibrillation
Atrial fibrillation (AF) is the most common sustained arrhythmia and is associated with substantial morbidity and mortality. Present treatment strategies are aimed at termination of AF and prevention of AF recurrence using antiarrhythmic drugs or heart rate control drugs. Drugs are not always well tolerated, so atrial pacing as a strategy for prevention of atrial tachyarrhythmias is being explored.
The AT501 pacemaker has both "prevention" and "treatment" algorithms for atrial tachyarrhythmias. The investigators wish to determine whether these special features, over the long term, decrease the amount of time the person experiences AF.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
There are some clinical and experimental data to suggest that atrial overdrive pacing should prevent AF. In our pacemaker population with tachy-brady syndrome, and in the PA3 study population, we observed that AF frequently clusters and may recur early following an episode of AF.
We are conducting a randomized trial of both prevention algorithms and antitachycardia pacing (ATP) therapies for the treatment of atrial tachyarrhythmias and thereby prevention of AF over the longterm.
Patients with a history of paroxysmal AF who received an AT501 pacemaker for the treatment of bradycardia will be randomized to having both the prevention and therapy algorithms "ON", both "OFF" or having only the therapy algorithms "ON". They will be followed every 3 months for 1 year, then every 6 months for an 2 additional years. Recurrence and frequency of AF will be determined over time based on data retrieved from the device at each follow-up visit.
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Alberta
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Calgary, Alberta, Canada, T2N 2T9
- Foothills Hospital
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Reason for pacing: symptomatic bradycardia
- Paroxysmal AF (>5 min duration, >3 episodes) post implant of AT501 pacemaker
- On stable antiarrhythmic drugs
- Life expectancy >3 years
Exclusion Criteria:
- Life expectancy <3 years
- Unable to give informed consent
- Unable to come for followup
- Chronic AF
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
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To determine the effects of antitachycardia pacing (ATP) therapies on prevention of atrial fibrillation recurrence over the long term
|
Sekundære resultatmål
Resultatmål |
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To determine the effects of atrial pacing prevention algorithms on the time to recurrence of atrial fibrillation over the long term
|
Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Anne M Gillis, MD, University of Calgary, Professor of Medicine
- Studiestol: D. George Wyse, MD, Ph.D, University of Calgary, Professor of Medicine
- Studiestol: John M Rothschild, MD, University of Calgary, Professor of Medicine
- Studiestol: M Sarah Rose, Ph D, University of Calgary, Statistician
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 15099
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Assiut UniversityTrukket tilbageASD2 (Secundum atrial septal defekt)
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Henry Ford Health SystemTrukket tilbage
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Nobles Medical Technologies II IncTilmelding efter invitationForamen Ovale, Patent | Septal defekt, atrial | Septaldefekt, HjerteForenede Stater, Italien
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HeartStitch.ComUkendtForamen Ovale, Patent | Septal defekt, atrial | Septaldefekt, HjerteForenede Stater
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Occlutech International ABAfsluttetSecundum atrial septal defekter
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University Hospital, Basel, SwitzerlandUniversity Hospital GreifswaldAfsluttetAtrium; Fibrillering | Arytmi AtrialTyskland, Schweiz