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Study for Atrial Fibrillation Reduction (SAFARI)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00267137
Recruitment Status : Completed
First Posted : December 20, 2005
Last Update Posted : April 8, 2020
Information provided by:
Medtronic Cardiac Rhythm and Heart Failure

Brief Summary:
Atrial fibrillation (AF), which is the name for rapid beats in the upper chambers of the heart, is the world's most common kind of irregular heart beat. People with AF experience symptoms such as heart palpitations (a racing or pounding feeling in the chest), shortness of breath, dizziness, fatigue or weakness. Although AF can occur in otherwise healthy people for no apparent reason, it is sometimes associated with high blood pressure, heart disease or lung problems. The purpose of the SAFARI trial is to study the effectiveness of pacing algorithms in the upper chamber of the heart for patients who have both AF and bradycardia (slow heart beat).

Condition or disease Intervention/treatment Phase
Atrial Fibrillation, Bradycardia Device: Pacing Algorithms Not Applicable

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Study Type : Interventional  (Clinical Trial)
Enrollment : 540 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single
Primary Purpose: Treatment
Official Title: Study for Atrial Fibrillation Reduction (SAFARI)
Actual Study Start Date : September 2002
Actual Primary Completion Date : September 11, 2005
Actual Study Completion Date : July 21, 2006

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Safety/Efficacy

Secondary Outcome Measures :
  1. Various

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subjects with a slow heartbeat who are in need of dual chamber pacing (pacing in both the atrium and ventricle).
  • Subjects who have experienced at least two episodes of rapid heart beats three months prior to enrollment.

Exclusion Criteria:

  • Subjects who have a history of permanent (chronic) or persistent (non self-terminating) atrial fibrillation.
  • Subjects with atrial fibrillation due to reversible cause, (e.g. thyroid disease, pericarditis, post-surgery, alcohol abuse).
  • Subjects with a history of one or more cardioversions (changing an abnormal heart rhythm into a normal one by either using medication or by the application of an electric shock) six months prior to enrollment.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00267137

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United States, Arizona
Yuma, Arizona, United States
United States, Arkansas
Fayetteville, Arkansas, United States
Fort Smith, Arkansas, United States
United States, California
Bakersfield, California, United States
Berkeley, California, United States
Los Angeles, California, United States
United States, Colorado
Aurora, Colorado, United States
United States, Connecticut
Stamford, Connecticut, United States
United States, Florida
Clearwater, Florida, United States
Daytona Beach, Florida, United States
Ormond Beach, Florida, United States
Tampa, Florida, United States
United States, Georgia
Atlanta, Georgia, United States
United States, Illinois
Chicago, Illinois, United States
Lombard, Illinois, United States
Springfield, Illinois, United States
United States, Louisiana
Shreveport, Louisiana, United States
United States, Massachusetts
Brighton, Massachusetts, United States
United States, Michigan
Lansing, Michigan, United States
United States, Minnesota
Saint Paul, Minnesota, United States
United States, New Jersey
Paterson, New Jersey, United States
Ridgewood, New Jersey, United States
United States, New York
East Syracuse, New York, United States
Rochester, New York, United States
Syracuse, New York, United States
United States, Ohio
Cincinnati, Ohio, United States
Cleveland, Ohio, United States
Columbus, Ohio, United States
Elyria, Ohio, United States
United States, Pennsylvania
Pittsburgh, Pennsylvania, United States
United States, South Carolina
Charleston, South Carolina, United States
United States, Tennessee
Nashville, Tennessee, United States
United States, Texas
Dallas, Texas, United States
Houston, Texas, United States
Sponsors and Collaborators
Medtronic Cardiac Rhythm and Heart Failure
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OverallOfficial: Not Required For IDE Studies
Layout table for additonal information Identifier: NCT00267137    
Other Study ID Numbers: 190
First Posted: December 20, 2005    Key Record Dates
Last Update Posted: April 8, 2020
Last Verified: April 2020
Keywords provided by Medtronic Cardiac Rhythm and Heart Failure:
Pacemaker, Atrial Fibrillation/Therapy
Additional relevant MeSH terms:
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Atrial Fibrillation
Arrhythmias, Cardiac
Heart Diseases
Cardiovascular Diseases
Pathologic Processes