Biventricular Versus Right Ventricular Pacing in Heart Failure Patients With Atrioventricular Block (BLOCK HF)
Public ClinicalTrials.gov record NCT00267098. 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.
Heart failure is a progressive disease that decreases the pumping action of the heart. This may cause a backup of fluid in the heart and may result in heart beat changes. When there are changes in the heartbeat, sometimes a pacemaker is used to control the rate and rhythm of the heartbeat. In this trial, the researchers will test if pacing both the left and right lower half of the heart (ventricles) will: * decrease the number of hospital and clinic visits due to heart failure symptoms * extend life * delay heart failure symptoms as compared to those who are paced in only one ventricle (the right ventricle)
Study identification
- NCT ID
- NCT00267098
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 918 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
- Dec 2003 (Type not available)
- Primary completion
- Dec 2012 (Actual)
- Completion
- Mar 2013 (Actual)
- Last update posted
- Mar 26, 2014
2003 – 2013
United States locations
- U.S. sites
- 51
- U.S. states
- 27
- U.S. cities
- 51
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Anchorage | Alaska | — | — |
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| Not listed | Camden | New Jersey | — | — |
| Not listed | Hackensack | New Jersey | — | — |
| Not listed | Ridgewood | New Jersey | — | — |
| Not listed | Bay Shore | New York | — | — |
| Not listed | Rochester | New York | — | — |
| Not listed | Syracuse | New York | — | — |
| Not listed | West Islip | New York | — | — |
| Not listed | Cincinnati | Ohio | — | — |
| Not listed | Cleveland | Ohio | — | — |
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| Not listed | Tulsa | Oklahoma | — | — |
| Not listed | Danville | Pennsylvania | — | — |
| Not listed | Doylestown | Pennsylvania | — | — |
| Not listed | Ephrata | Pennsylvania | — | — |
| Not listed | Lancaster | Pennsylvania | — | — |
| Not listed | Philadelphia | Pennsylvania | — | — |
| Not listed | Wynnewood | Pennsylvania | — | — |
| Not listed | Wyomissing | Pennsylvania | — | — |
| Not listed | Providence | Rhode Island | — | — |
| Not listed | Kingsport | Tennessee | — | — |
| Not listed | Dallas | Texas | — | — |
| Not listed | Fort Worth | Texas | — | — |
| Not listed | Fairfax | Virginia | — | — |
| Not listed | Norfolk | Virginia | — | — |
| Not listed | Spokane | Washington | — | — |
| Not listed | Morgantown | West 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.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 3 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00267098, 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 Mar 26, 2014 · Synced Oct 23, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00267098 live on ClinicalTrials.gov.