InSync III Marquis Model 7279 Cardioverter Defibrillator Cardiac Resynchronization System
Public ClinicalTrials.gov record NCT00271232. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
People who have a dangerously fast heart beat, or whose heart is at risk of stopping beating, may be in need of an electronic device called an implantable cardioverter defibrillator (ICD). An ICD is implanted surgically just under the skin in the upper chest area and it sends a strong electrical impulse, or shock, to the heart to return it to a normal rhythm. If the heart is beating too slowly or at an abnormal rhythm, an ICD can also pace the heart to return the heart to its normal rhythm. The InSync III Marquis device can change the timing of when the left and right ventricles of the heart are paced to beat. This is called "V to V timing". V to V timing may further improve the pumping function of the heart. The purpose of this study is to determine whether or not this V to V timing feature of the InSync III Marquis system is safe and effective.
Study identification
- NCT ID
- NCT00271232
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 238 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 28, 2003
- Primary completion
- Not listed
- Completion
- Mar 31, 2005
- Last update posted
- Dec 20, 2007
2003 – 2005
United States locations
- U.S. sites
- 34
- U.S. states
- 21
- U.S. cities
- 34
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Anchorage | Alaska | — | — |
| Not listed | Phoenix | Arizona | — | — |
| Not listed | Los Angeles | California | — | — |
| Not listed | Stanford | California | — | — |
| Not listed | Jacksonville | Florida | — | — |
| Not listed | Pensacola | Florida | — | — |
| Not listed | Tampa | Florida | — | — |
| Not listed | Atlanta | Georgia | — | — |
| Not listed | Beech Grove | Indiana | — | — |
| Not listed | Burlington | Massachusetts | — | — |
| Not listed | Minneapolis | Minnesota | — | — |
| Not listed | Saint Paul | Minnesota | — | — |
| Not listed | Kansas City | Missouri | — | — |
| Not listed | Lincoln | Nebraska | — | — |
| Not listed | Las Vegas | Nevada | — | — |
| Not listed | Lebanon | New Hampshire | — | — |
| Not listed | New York | New York | — | — |
| Not listed | Rochester | New York | — | — |
| Not listed | Syracuse | New York | — | — |
| Not listed | Raleigh | North Carolina | — | — |
| Not listed | Cincinnati | Ohio | — | — |
| Not listed | Cleveland | Ohio | — | — |
| Not listed | Columbus | Ohio | — | — |
| Not listed | Lancaster | Pennsylvania | — | — |
| Not listed | Philadelphia | Pennsylvania | — | — |
| Not listed | Wynnewood | Pennsylvania | — | — |
| Not listed | Aiken | South Carolina | — | — |
| Not listed | Columbia | South Carolina | — | — |
| Not listed | Memphis | Tennessee | — | — |
| Not listed | Nashville | Tennessee | — | — |
| Not listed | Austin | Texas | — | — |
| Not listed | Dallas | Texas | — | — |
| Not listed | Falls Church | Virginia | — | — |
| Not listed | Milwaukee | Wisconsin | — | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00271232, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 20, 2007 · Synced Sep 11, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00271232 live on ClinicalTrials.gov.