NCT00528320

Brief Summary

This study provides a continued access registry for cardiac resynchronization therapy with defibrillation (CRT-D), which helps to resynchronize (coordinate) the rhythm of the heart by helping the left ventricle contract (pump blood) more uniformly, in patients with severe heart failure (New York Heart Association \[NYHA\] Class III or IV). Quality of life, adverse events and device success will be analyzed and reported.

Trial Health

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 10, 2007

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 12, 2007

Completed
Last Updated

November 27, 2013

Status Verified

November 1, 2013

First QC Date

September 10, 2007

Last Update Submit

November 26, 2013

Conditions

Keywords

Congestive Heart FailureHeart FailureCardiac Resynchronization TherapyICDImplantable Cardioverter-DefibrillatorDefibrillator

Interventions

Eligibility Criteria

Age18 Years+
Sexall
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Accepted indication for ICD implant
  • Severe heart failure (NYHA Class III or IV) at the time of enrollment
  • May have pre-existing ICD, provided subject is on stable, optimal medical regime
  • Sinus rhythm with spontaneous QRS duration greater than or equal to 150 ms, or a QRS duration greater than or equal to 130 ms with an inter-ventricular mechanical delay (IVMD) greater than or equal to 40 ms
  • Left-ventricular ejection fraction (LVEF) of 35% or less

You may not qualify if:

  • Any generally accepted indication for standard cardiac pacing, or any contraindication for standard cardiac pacing
  • Any contraindication for ICD therapy
  • Currently implanted with a lead positioned in or through the coronary sinus
  • Hypertrophic or obstructive cardiomyopathy
  • Acute myocarditis
  • Unstable coronary symptoms (unstable angina or myocardial infarction) within the last month
  • Recent or planned cardiac revascularization or coronary angioplasty
  • Correctable valvular disease that is the primary cause of heart failure
  • Mechanical tricuspid valve
  • Chronic atrial arrhythmia or cardioversion for atrial fibrillation within the past month, or paroxysmal atrial fibrillation requiring new pharmacologic therapy within the past month
  • Systolic blood pressure consistently above 170 mmHg or consistently below 80 mmHg
  • Supine resting heart rate exceeding 100 bpm
  • Receiving continuous IV infusion of positive inotropic therapy or intermittent therapy (IV infusion) more than twice per week
  • Heart transplant recipient
  • Primary pulmonary disease of a severity that might limit the patient's ability to perform a treadmill test
  • +6 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Heart Failure

Condition Hierarchy (Ancestors)

Heart DiseasesCardiovascular Diseases

Study Design

Study Type
expanded access
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 10, 2007

First Posted

September 12, 2007

Last Updated

November 27, 2013

Record last verified: 2013-11