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- Klinische proef NCT02222818
Cardiac Resynchronization Therapy Efficacy Enhancements (CRTee)
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
The CRTee study is an IDE, prospective, multi-center, randomized, controlled, crossover clinical study, conducted worldwide and designed to demonstrate that the amount of effective CRT pacing during AF (atrial fibrillation) when CAFRPlus (Conducted AF Response Plus) is applied is not inferior to the amount of effective CRT pacing during AF when CAFR (Conducted AF Response) is applied.
The study will be conducted at up to 30 centers located in the United States, Europe and Middle East and Africa (MEA).
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Budapest, Hongarije
- Magyar Honvédség Honvédkorház
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Roma, Italië
- Policlinico Universitario Agostino Gemelli
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Seriate, Italië
- Azienda Ospedaliera Bolognini Seriate - Ospedale Bolognini
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Tricase, Italië
- Azienda Ospedaliera Cardinale Panico
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Riyadh, Saoedi-Arabië
- Prince Sultan Cardiac Center
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Kosice, Slowakije
- Východoslovenský Ústav Srdcových A Cievnych Chorôb, A.S.
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Liverpool, Verenigd Koninkrijk
- Liverpool Heart and Chest Hospital NHS Foundation Trust
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Newcastle Upon Tyne, Verenigd Koninkrijk
- he Newcastle upon Tyne Hospitals NHS Foundation Trust - Freeman Hospital
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Florida
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Boca Raton, Florida, Verenigde Staten
- Cardiac Arrythmia Services
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Iowa
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West Des Moines, Iowa, Verenigde Staten
- Iowa Heart Center
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Minnesota
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Minneapolis, Minnesota, Verenigde Staten
- North Memorial Heart and Vascular
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St. Cloud, Minnesota, Verenigde Staten
- CentraCare
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North Carolina
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Raleigh, North Carolina, Verenigde Staten
- North Carolina Heart and Vascular
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Ohio
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Columbus, Ohio, Verenigde Staten
- Mount Carmel
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Oklahoma
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Oklahoma City, Oklahoma, Verenigde Staten
- Oklahoma Heart
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Pennsylvania
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Reading, Pennsylvania, Verenigde Staten
- Berks Cardiology
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Texas
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Austin, Texas, Verenigde Staten, 78705
- Texas Cardiac Arrhythmia Services
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Washington
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Spokane, Washington, Verenigde Staten
- Kootenai Heart Clinics
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Cape Town, Zuid-Afrika
- Mediclinic Panorama
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Subject is willing to sign and date the study patient Informed Consent form.
- Subject is at least 18 years of age (or older, if required by local law).
- Subject is expected to remain available after enrollment to complete follow-up visits in both arms of the study
- Subject has had a Medtronic Viva or Brava CRT-D device implanted at least 30 days prior to enrollment.
- Subject has history of AF burden, of at least 6 days of at least 4 hours of AF over any 4 week period within the last 90 days as documented in device diagnostic data OR if subject has no atrial lead (therefore no device diagnostic data) but clinical evidence of high AF burden.
- Subject has demonstrated history of being able to complete Left Ventricular Capture Management (LVCM) documented in device data.
- Subject has a documented % V pacing during AF of less than or equal to 97% within 90 days prior to enrollment or within 10 days after enrollment.
Exclusion Criteria:
- Subject has undergone AV node ablation for treatment of AF.
- Subject has complete or 3rd degree AV block.
- Subject has had an MI within 30 days.
- Subject has medical conditions that limit study participation (per physician discretion).
- Subject is enrolled in one or more concurrent studies that could confound the study results as determined by Medtronic.
- Subject has a limited life expectancy for non-cardiac causes that would not allow completion of the study.
- Subject is pregnant (in the US, all women of child-bearing potential must undergo a pregnancy test within seven days prior to CRTee download).
- Subject meets the exclusion criteria required by local law.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Crossover-opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Ander: Group A: CAFR first
Subjects randomized to Group A will receive CAFR first, then cross over to CAFRPlus.
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The CAFR algorithm is currently available in the Medtronic market-released devices and intended to promote delivery of CRT pacing during conducted AT/AF episodes.
The CAFRPlus algorithm is part of the CRTee feature set.
This feature set has a diagnostic element that tracks the loss of effective CRT pacing that is occurring over time, both during normal sinus rhythm (NSR) and during AF.
It also has an interventional element (i.e.
CAFRPlus) that uses this evaluation of effective CRT pacing to adjust the pacing rate during AF to decrease loss of effective CRT pacing.
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Ander: Group B: CAFRPlus first
Subjects randomized to Group B will receive CAFRPlus first, then cross over to CAFR.
|
The CAFR algorithm is currently available in the Medtronic market-released devices and intended to promote delivery of CRT pacing during conducted AT/AF episodes.
The CAFRPlus algorithm is part of the CRTee feature set.
This feature set has a diagnostic element that tracks the loss of effective CRT pacing that is occurring over time, both during normal sinus rhythm (NSR) and during AF.
It also has an interventional element (i.e.
CAFRPlus) that uses this evaluation of effective CRT pacing to adjust the pacing rate during AF to decrease loss of effective CRT pacing.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Percentage of Effective CRT Pacing During AF (Non-inferiority Test)
Tijdsspanne: Up to 4 months
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The primary objective is to demonstrate that the percent effective CRT pacing during AF when CAFRPlus is applied is not inferior to when CAFR is applied (non-inferiority test).
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Up to 4 months
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Percentage of Effective CRT Pacing During AF (Superiority Test)
Tijdsspanne: Up to 4 months
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The secondary objective is to demonstrate that the percent effective CRT pacing during AF when CAFRPlus is applied is greater than when CAFR is applied (superiority test).
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Up to 4 months
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Medewerkers en onderzoekers
Onderzoekers
- Hoofdonderzoeker: Suneet Mittal, MD, Valley Health System
Publicaties en nuttige links
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- CRTee
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .