Response of Cardiac Resynchronization Therapy Optimization With Ventricle to Ventricle Timing in Heart Failure Patients
Public ClinicalTrials.gov record NCT00187200. 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
RESPONSE HF - Response of Cardiac Resynchronization Therapy Optimization With Interventricular (VV) Timing in Heart Failure Patients
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of the study is to evaluate the benefit of interventricular (V-V) delay optimization in reducing the non-responder rate in patients with cardiac resynchronization defibrillator (CRT-D) devices. The primary endpoint of this study is CRT responder rate. For patients enrolled with new CRT-D systems, patients are considered non-responders if BOTH of the following requirements are fulfilled: * \< 10% improvement in 6-minute hall walk, and * no class improvement or worsening in New York Heart Association (NYHA) scale. For those receiving CRT-D devices as replacements of older CRT-D systems, patients are considered non-responders if BOTH of the following requirements are fulfilled: * \> 1 heart failure (HF) related hospitalization, and * no class improvement or worsening in NYHA scale.
Study identification
- NCT ID
- NCT00187200
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Enrollment
- 816 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 31, 2004
- Primary completion
- Mar 31, 2010
- Completion
- Mar 31, 2010
- Last update posted
- Feb 4, 2019
2005 – 2010
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Ohio State University | Columbus | Ohio | 43210 | — |
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 NCT00187200, 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 Feb 4, 2019 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00187200 live on ClinicalTrials.gov.