Bradykinin Receptor Antagonism During Cardiopulmonary Bypass
Public ClinicalTrials.gov record NCT00223704. 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.
Each year over a million patients worldwide undergo cardiac surgery requiring cardiopulmonary bypass (CPB). CPB is associated with significant morbidity including the transfusion of allogenic blood products, inflammation and hemodynamic instability. In fact, approximately 20% of all blood products transfused are associated with coronary artery bypass grafting procedures. Transfusion of allogenic blood products is associated with well-documented morbidity and increased mortality after cardiac surgery. Enhanced fibrinolysis contributes to increased blood product transfusion in the perioperative period. The current proposal tests the central hypothesis that endogenous bradykinin contributes to the hemodynamic, fibrinolytic and inflammatory response to CPB and that bradykinin receptor antagonism will reduce hypotension, inflammation and transfusion requirements. In SPECIFIC AIM 1 we will test the hypothesis that the fibrinolytic and inflammatory response to CPB differ during ACE inhibition and angiotensin II type 1 receptor antagonism. In SPECIFIC AIM 2 we will test the hypothesis that bradykinin B2 receptor antagonism attenuates the hemodynamic, fibrinolytic, and inflammatory response to CPB. In SPECIFIC AIM 3 we will test the hypothesis that bradykinin B2 receptor antagonism reduces the risk of allogenic blood product transfusion in patients undergoing CPB. These studies promise to provide important information regarding the effects of drugs that interrupt the RAS and generate new strategies to reduce morbidity in patients undergoing CPB.
Study identification
- NCT ID
- NCT00223704
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2, Phase 3
- Enrollment
- 150 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 80 Years
- 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
- Apr 30, 2006
- Primary completion
- May 31, 2012
- Completion
- May 31, 2012
- Last update posted
- Nov 24, 2013
2006 – 2012
United States locations
- U.S. sites
- 2
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| TN Valley Healthcare System | Nashville | Tennessee | 37212 | — |
| Vanderbilt University | Nashville | Tennessee | 37232 | — |
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 NCT00223704, 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 Nov 24, 2013 · Synced Sep 8, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00223704 live on ClinicalTrials.gov.