PROSPECT: Predictors of Response to Cardiac Re-Synchronization Therapy

ClinicalTrials.gov ID: NCT00253357

Public ClinicalTrials.gov record NCT00253357. 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.

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ClinicalTrials.gov public records Last synced Oct 21, 2026, 2:46 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Predictors of Response to Cardiac Re-Synchronization Therapy

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. Using a medical device like a pacemaker or a defibrillator can help the heart to pump in regular beats. However, not all patients do better with a device. Currently, there is not a way to identify which patients will benefit from the device. The purpose of this study is to determine if using medical tests, Echocardiogram, can help in predicting which patients will improve. The types of patients needed for this study are those who have been diagnosed with moderate or severe heart failure.

Study identification

NCT ID: NCT00253357
Recruitment status: Completed
Study type: Observational
Phase: Not listed
Lead sponsor: Medtronic Cardiac Rhythm and Heart Failure; Industry
Enrollment: 450 participants

Conditions and interventions

Conditions

Interventions

Not listed

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: Mar 2004 (Type not available)
Primary completion: Not listed
Completion: Jun 2006 (Actual)
Last update posted: Dec 21, 2007

2004 – 2006

United States locations

U.S. sites: 16
U.S. states: 16
U.S. cities: 16

Facility	City	State	ZIP	Site status
Not listed	Several Locations	California	—	—
Not listed	Gainsville	Florida	—	—
Not listed	Atlanta	Georgia	—	—
Not listed	Columbus	Illinois	—	—
Not listed	Kansas City	Kansas	—	—
Not listed	New Orleans	Louisiana	—	—
Not listed	Grand Rapids	Michigan	—	—
Not listed	Several Locations	New Jersey	—	—
Not listed	Several Locations	New York	—	—
Not listed	Winston-Salem	North Carolina	—	—
Not listed	Several Locations	Ohio	—	—
Not listed	Dolyestown	Pennsylvania	—	—
Not listed	Nashville	Tennessee	—	—
Not listed	Burlington	Vermont	—	—
Not listed	Norfolk	Virginia	—	—
Not listed	Seattle	Washington	—	—

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 12 non-U.S. sites.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT00253357, 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 21, 2007 · Synced Oct 21, 2026

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The complete public registry record, listed eligibility criteria, and available contact information for NCT00253357 live on ClinicalTrials.gov.

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