Resynchronization/Defibrillation for Ambulatory Heart Failure Trial
RAFT
1 other identifier
interventional
1,798
7 countries
33
Brief Summary
Congestive heart failure (CHF) is a common health problem that leads to frequent hospitalizations and an increased death rate. In spite of advances in drug therapy, it remains a significant public health problem. Recently, a new therapy has been developed for advanced heart failure patients with a ventricular conduction abnormality. This new therapy, called cardiac resynchronization (CRT), is a device which stimulates the atrium, the right ventricle, and the left ventricle providing synchronization of the contraction of the heart chambers. It is the addition of this therapy to an implantable cardioverter defibrillator (ICD) that will be evaluated in this study. This study will compare whether the implantation of this new therapy device, in combination with an implantable cardioverter defibrillator, will reduce total mortality and hospitalizations for CHF.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Apr 2003
Longer than P75 for not_applicable
33 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2003
CompletedFirst Submitted
Initial submission to the registry
November 8, 2005
CompletedFirst Posted
Study publicly available on registry
November 9, 2005
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2010
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2011
CompletedAugust 28, 2023
August 1, 2023
7.4 years
November 8, 2005
August 24, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Primary outcome is a composite of all cause total mortality and hospitalization for CHF
Study end
Secondary Outcomes (8)
Total mortality
Study end
Cardiovascular mortality
Study end
Sudden arrhythmic death
Study end
Progressive HF death
Study end
All cause hospitalization rate
Study end
- +3 more secondary outcomes
Study Arms (2)
1. Optimal Medical therapy plus ICD
ACTIVE COMPARATOR2. Optimal Medical Therapy plus CRT/ICD
ACTIVE COMPARATORInterventions
Eligibility Criteria
You may qualify if:
- New York Heart Association (NYHA) Class II
- Left ventricular ejection fraction (LVEF) less than or equal to 30% by multigated acquisition scan (MUGA)/catheterization OR LVEF less than or equal to 30% and LV end diastolic dimension ≥ 60 mm (by echocardiogram) within 6 months prior to randomization
- Intrinsic QRS complex width ≥ 120 ms OR paced QRS measurement ≥ 200 ms
- ICD indication for primary or secondary prevention
- Optimal heart failure pharmacological therapy
- Normal sinus rhythm; OR chronic persistent atrial tachyarrhythmia with resting ventricular heart rate ≤ 60 beats per minute (bpm) and 6 minute hall walk ventricular heart rate of ≤ 90 bpm; OR chronic persistent atrial tachyarrhythmia with resting ventricular heart rate \> 60 bpm and 6 minute hall walk ventricular heart rate of \> 90 bpm and booked for atrioventricular junction ablation.
You may not qualify if:
- Intravenous inotropic agent in the last 4 days
- Patients with a life expectancy of less than one year from non-cardiac cause
- Expected to undergo cardiac transplantation within one year (status I)
- In hospital patients who have acute cardiac or non-cardiac illness that requires intensive care
- Uncorrected or uncorrectable primary valvular disease
- Restrictive, hypertrophic, or reversible form of cardiomyopathy
- Severe primary pulmonary disease such as cor pulmonale
- Tricuspid prosthetic valve
- Coronary revascularization (coronary artery bypass graft surgery \[CABG\] or percutaneous coronary intervention \[PCI\]) \< 1 month if previously determined LVEF \> 30%. Patients with a more recent revascularization can be included if a previously determined LVEF was ≤ 30%.
- Patients with an acute coronary syndrome including myocardial infarction (MI) can be included if the patients have had a previous MI with LV dysfunction (LVEF ≤ 30%).
- Patients included in another clinical trial that will affect the objectives of this study
- History of noncompliance to medical therapy
- Unable or unwilling to provide informed consent
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Ottawa Heart Institute Research Corporationlead
- Canadian Institutes of Health Research (CIHR)collaborator
- Medtroniccollaborator
Study Sites (33)
Royal Adelaide Hospital
Adelaide, 5000, Australia
Sir Charles Gairdner Hospital
Perth, 6009, Australia
University Ziekenhuis
Leuven, Belgium
University of Calgary/Foothill Hospital
Calgary, Alberta, T2N 2T9, Canada
Alberta Heart Institute
Edmonton, Alberta, T6G 2B7, Canada
St. Paul's Hospital
Vancouver, British Columbia, V6Z 1Y6, Canada
Victoria Cardiac Arrhythmia Trials
Victoria, British Columbia, V8R 4R2, Canada
NB Heart Centre Research Initiative
Saint John, New Brunswick, E2L 4L2, Canada
Memorial Hospital
St. John's, Newfoundland and Labrador, A1B 3V6, Canada
Queen Elizabeth II
Halifax, Nova Scotia, B3H 3A7, Canada
Hamilton Health Sciences Centre
Hamilton, Ontario, L8L 2X2, Canada
Kingston General Hospital
Kingston, Ontario, K7L 2V7, Canada
St. Mary's Hospital
Kitchener, Ontario, N2M 1B2, Canada
London Health Sciences Centre
London, Ontario, N6A 5A5, Canada
Southlake Regional Health Care
Newmarket, Ontario, L3Y 8C3, Canada
University of Ottawa Heart Institute
Ottawa, Ontario, K1Y 4 W7, Canada
Sunnybrook Hospital
Toronto, Ontario, M4N 3M5, Canada
St. Michael's Hospital
Toronto, Ontario, M5B 1W8, Canada
UHN Toronto General
Toronto, Ontario, M5G 2M9, Canada
Montreal Heart Institute
Montreal, Quebec, H1T 1C8, Canada
CHUM Hopital Notre Dame
Montreal, Quebec, H2L 4M1, Canada
McGill University Health Centre
Montreal, Quebec, H3A 1A1, Canada
Hopital du Sacre Coeur de Montreal
Montreal, Quebec, H4J 1C5, Canada
Laval Hospital
Québec, Quebec, G1V 4G5, Canada
CHUS Centre Hospitalier Universitaire de Sherbrooke
Sherbrooke, Quebec, J1H 5N4, Canada
Skejby University Hospital
Aarhus, Denmark
Zentralklinik
Bad Berka, Germany
J.W. Goethe University
Frankfurt, 60590, Germany
University of Giessen
Giessen, Germany
Ludwigshafen
Ludwigshafen, Germany
University of Mainz
Mainz, Germany
Isala Klinieken
Zwolle, Netherlands
Ege University
Izmir, Turkey (Türkiye)
Related Publications (14)
Sapp JL, Sivakumaran S, Redpath CJ, Khan H, Parkash R, Exner DV, Healey JS, Thibault B, Sterns LD, Lam NHN, Manlucu J, Mokhtar A, Sumner G, McKinlay S, Kimber S, Mondesert B, Talajic M, Rouleau J, McCarron CE, Wells G, Tang ASL; RAFT Long-Term Study Team. Long-Term Outcomes of Resynchronization-Defibrillation for Heart Failure. N Engl J Med. 2024 Jan 18;390(3):212-220. doi: 10.1056/NEJMoa2304542.
PMID: 38231622DERIVEDFudim M, Dalgaard F, Friedman DJ, Abraham WT, Cleland JGF, Curtis AB, Gold MR, Kutyifa V, Linde C, Ali-Ahmed F, Tang A, Olivas-Martinez A, Inoue LYT, Al-Khatib SM, Sanders GD. Comorbidities and clinical response to cardiac resynchronization therapy: Patient-level meta-analysis from eight clinical trials. Eur J Heart Fail. 2024 Apr;26(4):1039-1046. doi: 10.1002/ejhf.3029. Epub 2023 Sep 15.
PMID: 37671601DERIVEDFriedman DJ, Al-Khatib SM, Dalgaard F, Fudim M, Abraham WT, Cleland JGF, Curtis AB, Gold MR, Kutyifa V, Linde C, Tang AS, Ali-Ahmed F, Olivas-Martinez A, Inoue LYT, Sanders GD. Cardiac Resynchronization Therapy Improves Outcomes in Patients With Intraventricular Conduction Delay But Not Right Bundle Branch Block: A Patient-Level Meta-Analysis of Randomized Controlled Trials. Circulation. 2023 Mar 7;147(10):812-823. doi: 10.1161/CIRCULATIONAHA.122.062124. Epub 2023 Jan 26.
PMID: 36700426DERIVEDManlucu J, Sharma V, Koehler J, Warman EN, Wells GA, Gula LJ, Yee R, Tang AS. Incremental Value of Implantable Cardiac Device Diagnostic Variables Over Clinical Parameters to Predict Mortality in Patients With Mild to Moderate Heart Failure. J Am Heart Assoc. 2019 Jul 16;8(14):e010998. doi: 10.1161/JAHA.118.010998. Epub 2019 Jul 11.
PMID: 31291801DERIVEDBennett MT, Leader N, Sapp J, Parkash R, Gardner M, Healey JS, Thibault B, Sterns L, Essebag V, Birnie D, Sivakumaran S, Nery P, Andrade JG, Krahn AD, Tang A. Differentiating Ventricular From Supraventricular Arrhythmias Using the Postpacing Interval After Failed Antitachycardia Pacing. Circ Arrhythm Electrophysiol. 2018 Apr;11(4):e005921. doi: 10.1161/CIRCEP.117.005921.
PMID: 29618476DERIVEDLinde C, Cleland JGF, Gold MR, Claude Daubert J, Tang ASL, Young JB, Sherfesee L, Abraham WT. The interaction of sex, height, and QRS duration on the effects of cardiac resynchronization therapy on morbidity and mortality: an individual-patient data meta-analysis. Eur J Heart Fail. 2018 Apr;20(4):780-791. doi: 10.1002/ejhf.1133. Epub 2018 Jan 4.
PMID: 29314424DERIVEDSapp JL, Parkash R, Wells GA, Yetisir E, Gardner MJ, Healey JS, Thibault B, Sterns LD, Birnie D, Nery PB, Sivakumaran S, Essebag V, Dorian P, Tang AS. Cardiac Resynchronization Therapy Reduces Ventricular Arrhythmias in Primary but Not Secondary Prophylactic Implantable Cardioverter Defibrillator Patients: Insight From the Resynchronization in Ambulatory Heart Failure Trial. Circ Arrhythm Electrophysiol. 2017 Mar;10(3):e004875. doi: 10.1161/CIRCEP.116.004875.
PMID: 28292754DERIVEDWilton SB, Exner DV, Wyse DG, Yetisir E, Wells G, Tang AS, Healey JS. Frequency and Outcomes of Postrandomization Atrial Tachyarrhythmias in the Resynchronization/Defibrillation in Ambulatory Heart Failure Trial. Circ Arrhythm Electrophysiol. 2016 May;9(5):e003807. doi: 10.1161/CIRCEP.115.003807.
PMID: 27162033DERIVEDGillis AM, Kerr CR, Philippon F, Newton G, Talajic M, Froeschl M, Froeschl S, Swiggum E, Yetisir E, Wells GA, Tang AS. Impact of cardiac resynchronization therapy on hospitalizations in the Resynchronization-Defibrillation for Ambulatory Heart Failure trial. Circulation. 2014 May 20;129(20):2021-30. doi: 10.1161/CIRCULATIONAHA.112.000417. Epub 2014 Mar 7.
PMID: 24610807DERIVEDBirnie DH, Ha A, Higginson L, Sidhu K, Green M, Philippon F, Thibault B, Wells G, Tang A. Impact of QRS morphology and duration on outcomes after cardiac resynchronization therapy: Results from the Resynchronization-Defibrillation for Ambulatory Heart Failure Trial (RAFT). Circ Heart Fail. 2013 Nov;6(6):1190-8. doi: 10.1161/CIRCHEARTFAILURE.113.000380. Epub 2013 Aug 30.
PMID: 23995437DERIVEDCleland JG, Abraham WT, Linde C, Gold MR, Young JB, Claude Daubert J, Sherfesee L, Wells GA, Tang AS. An individual patient meta-analysis of five randomized trials assessing the effects of cardiac resynchronization therapy on morbidity and mortality in patients with symptomatic heart failure. Eur Heart J. 2013 Dec;34(46):3547-56. doi: 10.1093/eurheartj/eht290. Epub 2013 Jul 29.
PMID: 23900696DERIVEDHealey JS, Hohnloser SH, Exner DV, Birnie DH, Parkash R, Connolly SJ, Krahn AD, Simpson CS, Thibault B, Basta M, Philippon F, Dorian P, Nair GM, Sivakumaran S, Yetisir E, Wells GA, Tang AS; RAFT Investigators. Cardiac resynchronization therapy in patients with permanent atrial fibrillation: results from the Resynchronization for Ambulatory Heart Failure Trial (RAFT). Circ Heart Fail. 2012 Sep 1;5(5):566-70. doi: 10.1161/CIRCHEARTFAILURE.112.968867. Epub 2012 Aug 14.
PMID: 22896584DERIVEDHealey JS, Gula LJ, Birnie DH, Sterns L, Connolly SJ, Sapp J, Crystal E, Simpson C, Exner DV, Kus T, Philippon F, Wells G, Tang AS. A randomized-controlled pilot study comparing ICD implantation with and without intraoperative defibrillation testing in patients with heart failure and severe left ventricular dysfunction: a substudy of the RAFT trial. J Cardiovasc Electrophysiol. 2012 Dec;23(12):1313-6. doi: 10.1111/j.1540-8167.2012.02393.x. Epub 2012 Jul 12.
PMID: 22788915DERIVEDTang AS, Wells GA, Talajic M, Arnold MO, Sheldon R, Connolly S, Hohnloser SH, Nichol G, Birnie DH, Sapp JL, Yee R, Healey JS, Rouleau JL; Resynchronization-Defibrillation for Ambulatory Heart Failure Trial Investigators. Cardiac-resynchronization therapy for mild-to-moderate heart failure. N Engl J Med. 2010 Dec 16;363(25):2385-95. doi: 10.1056/NEJMoa1009540. Epub 2010 Nov 14.
PMID: 21073365DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Anthony Tang, MD
Ottawa Heart Institute Research Corporation
- PRINCIPAL INVESTIGATOR
George Wells, PhD
Ottawa Heart Institute Research Corporation
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
November 8, 2005
First Posted
November 9, 2005
Study Start
April 1, 2003
Primary Completion
September 1, 2010
Study Completion
May 1, 2011
Last Updated
August 28, 2023
Record last verified: 2023-08