Dual chamber and atrial tachyarrhythmias adverse events study
ISRCTN | ISRCTN82728969 |
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DOI | https://doi.org/10.1186/ISRCTN82728969 |
ClinicalTrials.gov number | NCT00157820 |
Secondary identifying numbers | DATAS |
- Submission date
- 13/12/2003
- Registration date
- 16/01/2004
- Last edited
- 21/03/2016
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Plain English summary of protocol
Not provided at time of registration
Contact information
Dr Aurelio Quesada
Scientific
Scientific
Av. Tres Cruces s/n
Valencia
46014
Spain
aquesadad@meditex.es |
Study information
Study design | Randomised controlled trial |
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Primary study design | Interventional |
Secondary study design | Randomised controlled trial |
Study setting(s) | Hospital |
Study type | Treatment |
Participant information sheet | Not available in web format, please use the contact details below to request a patient information sheet |
Scientific title | Dual chamber and Atrial Tachyarrhythmias Adverse events Study |
Study acronym | DATAS |
Study objectives | To analyse the ability of dual chamber implantable cardioverter defibrillator (DC ICD) (dual chamber [DDED] defibrillator) to reduce clinically significant adverse events compared with single chamber implantable cardioverter defibrillator (SC ICD) in a non-selected population with conventional indications for implantable cardioverter defibrillator (ICD) implantation. |
Ethics approval(s) | Documented approval of the investigational plan by the Institutional Review Board (IRB) or Ethics Committee (EC) affiliated with the study centre is required for starting the study. |
Health condition(s) or problem(s) studied | Tachyarrythmias, automatic implantable cardioverter defibrilator (ICD) |
Intervention | Interventions: Analyse the ability of DDED to reduce clinically significant adverse events as compared to SC ICD (VVEV) in a non selected population with conventional indication of ICD implantation. Three arms: two of them (SC simulated and DC true) cross-over, and the third (SC true) parallels the other two. A 1-month wash out period after the cross-over is included to avoid influence of the remodeling associated with pacing mode. Patients will be followed-up at 1, 4, 8, 9, 13 and 17 months. At enrolment, 8 and 17 months, the quality of life questionnaires, a 6-minute walk test and echo parameters will be recorded, as well as reevaluation of the cardiovascular history. |
Intervention type | Device |
Pharmaceutical study type(s) | |
Phase | |
Drug / device / biological / vaccine name(s) | |
Primary outcome measure | To determine whether use of DDED ICD results in a significant decrease in the number of clinically significant adverse events (CSAE) as follows: 1. All-cause mortality 2. Invasive intervention, hospitalisation (greater than 24 hours) or prolongation of hospitalisation due to cardiovascular cause 3. Inappropriate shocks (two or more episodes with inappropriate shocks) 4. Sustained symptomatic atrial tachyarrhythmias that: 4.1. Require urgent termination, or 4.2. Last more than 48 hours leading to therapeutic intervention |
Secondary outcome measures | 1. Number of each of the components of the CSAE 2. Arrhythmia related: 2.1. Atrial tachyarrhythmia 2.2. Frequency and burden 2.3. Ventricular tachyarrhythmia frequency and burden number of appropriate shocks 2.4. Number of inappropriate shocks 2.5. Need for reprogramming 2.6. Need for medication/radiofrequency ablation (RFA) for arrhythmia control 2.7. Pacemaker syndrome 2.8. Development of dual chamber pacing indication 3. Cardiovascular related: 3.1. New York Heart Association (NYHA) functional class 3.2. Exercise capacity 3.3. Left ventricular ejection fraction (LVEF) 3.4. Reduction of medication (diuretics) 4. Quality of life: 4.1. Evaluated by the 36-item Short Form Health Survey (SF-36) 4.2. Minnesota living test, with heart failure and Symptom Checklist instruments |
Overall study start date | 01/11/2000 |
Completion date | 01/04/2005 |
Eligibility
Participant type(s) | Patient |
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Age group | Not Specified |
Sex | Not Specified |
Target number of participants | 360 |
Key inclusion criteria | Meet Class I implantation criteria for single chamber implantable cardioverter defibrillator according to guidelines |
Key exclusion criteria | 1. Permanent atrial fibrillation 2. Non structural heart disease 3. Patient meets implantation criteria for dual-chamber pacing (symptomatic sinus node disease, all 2nd atrioventricular (AV) block [except asymptomatic Mobitz I] and all 3rd degree AV block) 4. Previous system implanted (ICD or pacemaker) 5. Mechanical right heart valve 6. Medical conditions that would preclude the testing required by the protocol, or limit study participation 7. Unwilling or unable to cooperate or give written informed consent, or the patient is a minor and legal guardians refuse to give informed consent 8. Inaccessible for follow-up at the study centre 9. Biventricular stimulation or re-synchronisation 10. Enrolled or planning to enrol in other clinical trials during the clinical study |
Date of first enrolment | 01/11/2000 |
Date of final enrolment | 01/04/2005 |
Locations
Countries of recruitment
- Germany
- Israel
- Italy
- Portugal
- Spain
- United Kingdom
Study participating centre
Av. Tres Cruces s/n
Valencia
46014
Spain
46014
Spain
Sponsor information
Medtronic Inc. (USA)
Industry
Industry
-
Minneapolis
+1 (0)55432-3576
United States of America
Website | http://www.medtronic.com/ |
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https://ror.org/00grd1h17 |
Funders
Funder type
Industry
Medtronic
Private sector organisation / For-profit companies (industry)
Private sector organisation / For-profit companies (industry)
- Alternative name(s)
- Medtronic Inc.
- Location
- United States of America
Results and Publications
Intention to publish date | |
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Individual participant data (IPD) Intention to share | No |
IPD sharing plan summary | Not provided at time of registration |
Publication and dissemination plan | Not provided at time of registration |
IPD sharing plan |
Study outputs
Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
---|---|---|---|---|---|
Basic results | No | No | |||
Protocol article | Protocol | 01/03/2004 | Yes | No | |
Results article | Results | 01/05/2008 | Yes | No |
Editorial Notes
21/03/2016: added link to results - basic reporting.