ULTRA Study for Pacemaker Patients
Public ClinicalTrials.gov record NCT00133289. 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.
Official title
Ventricular Automatic Capture Assessment Study
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The ULTRA study will assess the difference in average ventricular voltage output for pacemaker patients randomized to Automatic Capture feature ON versus patients randomized to Automatic Capture feature OFF.
Study identification
- NCT ID
- NCT00133289
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Enrollment
- 950 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Not listed
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 30, 2005
- Primary completion
- Not listed
- Completion
- May 31, 2007
- Last update posted
- Jul 9, 2007
2005 – 2007
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Brigham and Women's Hospital | Boston | Massachusetts | 02115 | — |
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 NCT00133289, 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 Jul 9, 2007 · Synced Sep 17, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00133289 live on ClinicalTrials.gov.