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Primary Prevention of Sudden Cardiac ArrestMADIT-RITNCT00947310

Multicenter Automatic Defibrillator Implantation Trial - Reduce Inappropriate Therapy

A study testing Standard ICD programming, High rate cutoff and Long delay in people with Primary Prevention of Sudden Cardiac Arrest, run by Boston Scientific Corporation at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will assess the impact of higher rate cutoffs and longer delays than standard programming on inappropriate therapy in primary prevention ICD and CRT-D patients. Read more about this study

Who is it for?
Ages 21 years and older
What is being tested?
Standard ICD programming, High rate cutoff and Long delay
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,500 participants
Where
1 siteUnited States
Study dates
Sep 2009to Dec 2012
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Primary prevention patient with ischemic or non-ischemic heart disease who meets current guidelines for dual-chamber ICD or CRT-D device therapy
  • Patient in sinus rhythm
  • Patient on stable optimal pharmacologic therapy for the cardiac condition or who has developed a recent ICD indication that necessitates ICD therapy concurrent with the optimization of pharmacologic therapy
  • Patient ≥ 21 years of age, or legal representative, willing and capable of giving informed consent

Who cannot join

  • Patient with an implanted pacemaker or CRT-P
  • Patient with existing ICD or CRT-D device components
  • Patient with a history of VT or VF
  • Patient with permanent or chronic AF, or cardioversion for AF, within the past three calendar months before enrollment
  • Patient with coronary artery bypass graft surgery or percutaneous coronary intervention within the past three calendar months prior to enrollment
  • Patient with enzyme-positive myocardial infarction within the past three calendar months prior to enrollment
Show all 19Show fewer
  • Patient with angiographic evidence of coronary disease who are candidates for coronary revascularization and are likely to undergo coronary artery bypass graft surgery or percutaneous coronary intervention in the foreseeable future
  • Patient with second or third degree heart block
  • Patient in NYHA Class IV
  • Patient who is pregnant or plans to become pregnant during the course of the trial
  • Patient with irreversible brain damage from preexisting cerebral disease
  • Patient with presence of any disease, other than the patient's cardiac disease, associated with a reduced likelihood of survival for the duration of the trial, e.g., cancer, uremia, liver failure, etc.
  • Patient with chronic renal disease with BUN ≥ 50mg/dl or creatinine ≥ 2.5 mg/dl
  • Patient participating in any other clinical trial
  • Patient unwilling or unable to cooperate with the protocol
  • Patient who lives at such a distance from the clinic that travel for follow-up visits would be unusually difficult
  • Patient who does not anticipate being a resident of the area for the scheduled duration of the trial
  • Patient unwilling to sign the consent for participation
  • Patient whose physician does not allow participation

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Rochester (Multiple Facilities Participating World Wide)

    Rochester, New York, 14642

Other trials in United States

About this study

Official title: IDE-Exempt: Multicenter Automatic Defibrillator Implantation Trial - Reduce Inappropriate Therapy

This study will assess the impact of higher rate cutoffs and longer delays than standard programming on inappropriate therapy in primary prevention ICD and CRT-D patients.

Read the detailed description

The purpose of the MADIT-RIT trial is to compare the time to first inappropriate therapy using high rate cutoff and/or long delay in primary prevention patients receiving an ICD or CRT-D device compared to standard programming.

Being tested
Standard ICD programming, High rate cutoff, Long delay
Keywords
Inappropriate therapy, ICD therapy, Primary prevention

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Standard ICD programmingDevice

    Standard ICD programming

  • High rate cutoffDevice

    Programming of a high rate cutoff

  • Long delayDevice

    Programming of a prolonged delay

Study groups in NCT00947310
Study groupRoleWhat they receive
AExperimentalStandard ICD Programming
Receives: Device: Standard ICD programming
BExperimentalHigh rate cutoff
Receives: Device: High rate cutoff
CExperimentalLong ICD duration delay
Receives: Device: Long delay

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Inappropriate ICD Therapy

    First occurance of inappropriate therapy (either anti-tachycardia pacing or shock)

    Measured: Average of 1.4 years follow-up

Secondary outcomes (2)
  1. All-cause Mortality

    Measured: Average 1.4 years of follow-up

  2. Syncope

    First episode of syncope

    Measured: Average of 1.4 years follow-up

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Jul 2009 (estimated)
  2. Study startSep 2009
  3. Primary completionAug 2012
  4. Study completionDec 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
1,500 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00947310
Sponsor's protocol ID
MADIT-RIT
Acronym
MADIT-RIT
Status last verified
Mar 2013
First submitted
27 Jul 2009
Last updated
8 Aug 2018
Data monitoring committee
Yes

Publications

  • Schuger C, Daubert JP, Brown MW, Cannom D, Estes NA 3rd, Hall WJ, Kayser T, Klein H, Olshansky B, Power KA, Wilber D, Zareba W, Moss AJ. Multicenter automatic defibrillator implantation trial: reduce inappropriate therapy (MADIT-RIT): background, rationale, and clinical protocol. Ann Noninvasive Electrocardiol. 2012 Jul;17(3):176-85. doi: 10.1111/j.1542-474X.2012.00531.x.

    PubMed 22816536
  • Younis A, Heist EK, McNitt S, Aktas MK, Rosero S, Goldenberg I, Kutyifa V. Predictors and outcomes of atrial tachyarrhythmia among patients with implantable defibrillators. Heart Rhythm. 2020 Apr;17(4):553-559. doi: 10.1016/j.hrthm.2019.11.024. Epub 2019 Nov 22.

    PubMed 31765809
  • Jackson LR 2nd, Thomas KL, Polonsky B, Zareba W, Lahiri M, Saba S, McNitt S, Schuger C, Daubert JP, Moss AJ, Kutyifa V. Effectiveness of high rate and delayed detection ICD programming by race: A MADIT-RIT substudy. J Cardiovasc Electrophysiol. 2018 Oct;29(10):1418-1424. doi: 10.1111/jce.13693. Epub 2018 Jul 24.

    PubMed 29978932
  • Kutyifa V, Daubert JP, Schuger C, Goldenberg I, Klein H, Aktas MK, McNitt S, Stockburger M, Merkely B, Zareba W, Moss AJ. Novel ICD Programming and Inappropriate ICD Therapy in CRT-D Versus ICD Patients: A MADIT-RIT Sub-Study. Circ Arrhythm Electrophysiol. 2016 Jan;9(1):e001965. doi: 10.1161/CIRCEP.114.001965.

    PubMed 26743237
  • Kutyifa V, Daubert JP, Olshansky B, Huang DT, Zhang C, Ruwald AC, McNitt S, Zareba W, Moss AJ, Schuger C. Characterization and predictors of first and subsequent inappropriate ICD therapy by heart rate ranges: Result of the MADIT-RIT efficacy analysis. Heart Rhythm. 2015 Sep;12(9):2030-7. doi: 10.1016/j.hrthm.2015.05.021. Epub 2015 May 19.

    PubMed 26001510
  • Kutyifa V, Moss AJ, Schuger C, McNitt S, Polonsky B, Ruwald AH, Ruwald MH, Daubert JP, Zareba W. Reduction in Inappropriate ICD Therapy in MADIT-RIT Patients Without History of Atrial Tachyarrhythmia. J Cardiovasc Electrophysiol. 2015 Aug;26(8):879-884. doi: 10.1111/jce.12692. Epub 2015 Jun 15.

    PubMed 25917337
  • Stockburger M, Moss AJ, Olshansky B, Klein H, McNitt S, Schuger C, Daubert JP, Goldenberg I, Ruwald AC, Merkely B, Zareba W, Kutyifa V. Time-dependent risk reduction of ventricular tachyarrhythmias in cardiac resynchronization therapy patients: a MADIT-RIT sub-study. Europace. 2015 Jul;17(7):1085-91. doi: 10.1093/europace/euv008. Epub 2015 Mar 4.

    PubMed 25745075
  • Sedlacek K, Ruwald AC, Kutyifa V, McNitt S, Thomsen PEB, Klein H, Stockburger M, Wichterle D, Merkely B, DE LA Concha JF, Swissa M, Zareba W, Moss AJ, Kautzner J, Ruwald MH; MADIT-RIT Investigators. The effect of ICD programming on inappropriate and appropriate ICD Therapies in ischemic and nonischemic cardiomyopathy: the MADIT-RIT trial. J Cardiovasc Electrophysiol. 2015 Apr;26(4):424-433. doi: 10.1111/jce.12605. Epub 2015 Feb 11.

    PubMed 25546486
  • Ruwald AC, Schuger C, Moss AJ, Kutyifa V, Olshansky B, Greenberg H, Cannom DS, Estes NA, Ruwald MH, Huang DT, Klein H, McNitt S, Beck CA, Goldstein R, Brown MW, Kautzner J, Shoda M, Wilber D, Zareba W, Daubert JP. Mortality reduction in relation to implantable cardioverter defibrillator programming in the Multicenter Automatic Defibrillator Implantation Trial-Reduce Inappropriate Therapy (MADIT-RIT). Circ Arrhythm Electrophysiol. 2014 Oct;7(5):785-92. doi: 10.1161/CIRCEP.114.001623. Epub 2014 Aug 18.

    PubMed 25136077
  • Ruwald MH, Okumura K, Kimura T, Aonuma K, Shoda M, Kutyifa V, Ruwald AC, McNitt S, Zareba W, Moss AJ. Syncope in high-risk cardiomyopathy patients with implantable defibrillators: frequency, risk factors, mechanisms, and association with mortality: results from the multicenter automatic defibrillator implantation trial-reduce inappropriate therapy (MADIT-RIT) study. Circulation. 2014 Feb 4;129(5):545-52. doi: 10.1161/CIRCULATIONAHA.113.004196. Epub 2013 Nov 7.

    PubMed 24201303
  • Ruwald MH, Zareba W, Jons C, Zhang C, Ruwald AC, Olshansky B, McNitt S, Bloch Thomsen PE, Shoda M, Merkely B, Moss AJ, Kutyifa V. Influence of diabetes mellitus on inappropriate and appropriate implantable cardioverter-defibrillator therapy and mortality in the Multicenter Automatic Defibrillator Implantation Trial-Reduce Inappropriate Therapy (MADIT-RIT) Trial. Circulation. 2013 Aug 13;128(7):694-701. doi: 10.1161/CIRCULATIONAHA.113.002472. Epub 2013 Jul 23.

    PubMed 23881862
  • Moss AJ, Schuger C, Beck CA, Brown MW, Cannom DS, Daubert JP, Estes NA 3rd, Greenberg H, Hall WJ, Huang DT, Kautzner J, Klein H, McNitt S, Olshansky B, Shoda M, Wilber D, Zareba W; MADIT-RIT Trial Investigators. Reduction in inappropriate therapy and mortality through ICD programming. N Engl J Med. 2012 Dec 13;367(24):2275-83. doi: 10.1056/NEJMoa1211107. Epub 2012 Nov 6.

    PubMed 23131066

Questions about this trial

What is this clinical trial studying?

A study testing Standard ICD programming, High rate cutoff and Long delay in people with Primary Prevention of Sudden Cardiac Arrest, run by Boston Scientific Corporation at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 Apr 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Inappropriate ICD Therapy (time frame: Average of 1.4 years follow-up). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00947310, which also lists 12 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Aug 2018.

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