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Congestive Heart FailurePhase 2/3NCT00180258

Comparison of Medical Therapy, Pacing and Defibrillation in Heart Failure

A Phase 2/3 study testing Cardiac Resynchronization Therapy with & without defibrillator in people with Congestive Heart Failure, 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

The purpose of this study is to determine whether combined mortality and hospitalization in heart failure patients receiving optimal pharmacologic therapy can be reduced by combining optimal pharmacologic therapy and 1) biventricular pacing therapy alone or 2) biventricular pacing with defibrillation. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Congestive Heart Failure
What is being tested?
Cardiac Resynchronization Therapy with & without defibrillator
Type of treatment
Medical device
How many people
2,200 participants
Where
1 siteUnited States
Study dates
Jan 2000to Dec 2002
Phase
Phase 2/3
Are there results?
None posted in the registry

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

Who may be able to join

  • Moderate or severe heart failure, defined as symptomatic heart failure for at least six months with NYHA Class III or IV symptoms at the time of enrollment, AND at least one of the following events in the previous 12 months:
  • Hospitalization for heart failure management
  • Outpatient visit in which intravenous (IV) inotropes or vasoactive infusion were administered continuously for at least 4 hours
  • Emergency room visit of at least twelve hours duration in which IV heart failure medications were administered (including diuretics)
  • QRS > or = 120 ms and PR interval > 150 ms from any two leads of a 12-lead ECG
  • Left ventricular ejection fraction < or = 35%
Show all 9Show fewer
  • Left ventricular end diastolic dimension > or = 60 mm (required only if LVEF measured by echo) or > 3.0 cm/m2 [The cm/m2 is calculated by LVEDD (in cm) divided by BSA (body surface area)].
  • Age > or = 18 years
  • Optimal pharmacologic therapy for heart failure

Who cannot join

  • Unable or unwilling to undergo device implant and follow-up testing
  • Meet the general indications for an implantable cardioverter defibrillator
  • Meet the general indications for antibradycardia pacing
  • Expected to receive a heart transplant in the next six months
  • Chronic, medically refractory atrial tachyarrhythmias
  • Unexplained syncope
Show all 20Show fewer
  • Myocardial infarction within 60 days of randomization
  • History of non-compliance with oral heart failure therapy
  • Progressive or unstable angina
  • Uncontrolled blood pressure: Systolic BP > 160 mm Hg or < 85 mm Hg or diastolic BP > 90 mm Hg
  • Patients with a hypersensitivity to a 0.7 mg nominal dose of dexamethasone acetate
  • Surgically uncorrected primary valvular heart disease
  • Coronary artery disease (CAD) in which surgical or percutaneous correction is recent (within 60 days of randomization)
  • Women who are pregnant or not using medically acceptable birth control
  • Hypertrophic obstructive cardiomyopathy
  • Amyloid disease
  • Hospitalization for heart failure or IV inotropic or vasoactive therapy in excess of 4 hours in the 30 days prior to enrollment
  • Have a tricuspid prosthesis
  • Involved in any other investigational studies
  • Life expectancy < 6 months due to any other medical conditions

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Multiple locations in the US

    Saint Paul, Minnesota

Other trials in United States

About this study

The purpose of this study is to determine whether combined mortality and hospitalization in heart failure patients receiving optimal pharmacologic therapy can be reduced by combining optimal pharmacologic therapy and 1) biventricular pacing therapy alone or 2) biventricular pacing with defibrillation.

Read the detailed description

Evaluation of new therapies for the treatment of heart failure should address mortality, morbidity, hospitalization, and cardiac symptoms and function when compared to standard pharmacologic therapy. The COMPANION trial is designed to address all of these objectives. This clinical investigation is an open-label, prospective, multi-center, randomized clinical trial. Every patient enrolled in the study is to be prescribed to optimal pharmacologic heart failure therapy, as tolerated, regardless of randomization.

Being tested
Cardiac Resynchronization Therapy with & without defibrillator
Keywords
Cardiac Resynchronization Therapy (CRT), Heart Failure, Defibrillator, Pacemaker
Medical subject headings
Heart Failure

What participants receive

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

  • Cardiac Resynchronization Therapy with & without defibrillatorDevice

What is being measured

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

  1. Combination of all-cause mortality and first hospitalization (time to first event), where all-cause mortality is defined as death from all causes.

Secondary outcomes (1)
  1. Total survival for both the CONTAK CD and CONTAK TR CHFDs when used in conjunction with pharmacologic therapy.

Timeline

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

  1. First posted16 Sep 2005 (estimated)
  2. Study startJan 2000
  3. Study completionDec 2002

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 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
2,200 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00180258
Sponsor's protocol ID
Clinicals0002
Status last verified
Jan 2007
First submitted
9 Sep 2005
Last updated
25 Jan 2007
Results posted
No

Publications

  • Bristow MR, Saxon LA, Boehmer J, Krueger S, Kass DA, De Marco T, Carson P, DiCarlo L, DeMets D, White BG, DeVries DW, Feldman AM; Comparison of Medical Therapy, Pacing, and Defibrillation in Heart Failure (COMPANION) Investigators. Cardiac-resynchronization therapy with or without an implantable defibrillator in advanced chronic heart failure. N Engl J Med. 2004 May 20;350(21):2140-50. doi: 10.1056/NEJMoa032423.

    PubMed 15152059
  • Cleland JGF, Bristow MR, Freemantle N, Olshansky B, Gras D, Saxon L, Tavazzi L, Boehmer J, Ghio S, Feldman AM, Daubert JC, de Mets D. The effect of cardiac resynchronization without a defibrillator on morbidity and mortality: an individual patient data meta-analysis of COMPANION and CARE-HF. Eur J Heart Fail. 2022 Jun;24(6):1080-1090. doi: 10.1002/ejhf.2524. Epub 2022 May 22.

    PubMed 35490339
  • Anand IS, Carson P, Galle E, Song R, Boehmer J, Ghali JK, Jaski B, Lindenfeld J, O'Connor C, Steinberg JS, Leigh J, Yong P, Kosorok MR, Feldman AM, DeMets D, Bristow MR. Cardiac resynchronization therapy reduces the risk of hospitalizations in patients with advanced heart failure: results from the Comparison of Medical Therapy, Pacing and Defibrillation in Heart Failure (COMPANION) trial. Circulation. 2009 Feb 24;119(7):969-77. doi: 10.1161/CIRCULATIONAHA.108.793273. Epub 2009 Feb 9.

    PubMed 19204305

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Cardiac Resynchronization Therapy with & without defibrillator in people with Congestive Heart Failure, 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 9 inclusion and 20 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 25 Jan 2007. 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.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Combination of all-cause mortality and first hospitalization (time to first event), where all-cause mortality is defined as death from all causes.. 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 NCT00180258, which also lists 3 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 25 Jan 2007.

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