CLINICAL TRIALS PROFILE FOR AMINOCAPROIC
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All Clinical Trials for Aminocaproic
| Trial ID | Title | Status | Sponsor | Phase | Start Date | Summary |
|---|---|---|---|---|---|---|
| NCT00156520 ↗ | Platelet Function And Aggregometry In Patients With Aortic Valve Stenosis | Completed | University of Rochester | Phase 4 | 2005-03-01 | It is known that patients with aortic stenosis, including those undergoing cardiac surgery for this problem, are prone to developing bleeding problems, particularly of the gastrointestinal tract. It is believed that the shear stress associated with blood flow through the abnormal aortic valve results in abnormal hemostasis. Abnormalities include increased proteolysis of the von Willebrand factor (vWF) and increased binding of the high molecular weight multimers of vWF to platelet membranes with subsequent inappropriate platelet aggregation. Thus, appropriate aggregation of circulating platelets is impaired. Cardiac surgery is associated with significant alterations in hemostasis. Patients undergoing cardiac surgery consume a significant percent of available blood products throughout the United States and are subjected to various and numerous risks associated with blood product transfusion. In addition, excessive postoperative bleeding is a common cause for the need to surgically re-explore the chest cavity in patients who have just undergone cardiac surgical procedures. Such additional surgery carries further cost and risk. Following surgical correction of aortic valve stenotic pathology, associated vWF abnormalities appear to reverse. However, this process can take several days. Although all cardiac surgical patients are at risk for postoperative bleeding, patients undergoing aortic valve surgery for aortic stenosis may be particularly at risk for this postoperative complication. In addition, patients with aortic valve stenosis who undergo noncardiac surgery may have a predisposition to bleeding because of similar underlying shear stress induced abnormal vWF and platelet function. The proposed study is a trial to evaluate the effectiveness of 2 different antifibrinolytic drugs in ameliorating the hemostatic defect associated with aortic stenosis. Aprotonin, an antifibrinolytic agent which also has platelet preserving actions4, will be compared to the currently used anti-fibrinolytic, epsilon aminocaproic acid (EACA). |
| NCT00223704 ↗ | Bradykinin Receptor Antagonism During Cardiopulmonary Bypass | Completed | Vanderbilt University | Phase 2/Phase 3 | 2006-05-01 | 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. |
| NCT00223704 ↗ | Bradykinin Receptor Antagonism During Cardiopulmonary Bypass | Completed | Vanderbilt University Medical Center | Phase 2/Phase 3 | 2006-05-01 | 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. |
| NCT00320619 ↗ | Epsilon-Aminocaproaic Acid to Reduce the Need for Blood Transfusions During and Following Spine Surgery | Completed | National Heart, Lung, and Blood Institute (NHLBI) | N/A | 2000-09-01 | Individuals who undergo spine surgery often have a significant loss of blood and may require multiple blood transfusions. Research has shown that epsilon-aminocaproic acid (EACA) may reduce the amount of blood lost during surgery, which would decrease the number of blood transfusions required. This study will evaluate the safety and effectiveness of EACA at reducing blood loss and the need for blood transfusions in individuals undergoing spine surgery. |
| NCT00513240 ↗ | Erythropoetin Neuroprotection for Neonatal Cardiac Surgery | Completed | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | Phase 1/Phase 2 | 2006-09-01 | Brain problems occur in neonatal open heart surgery with a frequency of 20-70%, seen on neurological examination, brain imaging such as magnetic resonance imaging (MRI), or long term development problems such as learning disorders and hyperactivity syndromes. This study aims to determine if erythropoetin, a natural hormone made in the body, protects the brain from damage when given in high doses before and during neonatal open heart surgery. We will use brain MRI, brain wave tests (EEG), neurological examination, and long term developmental outcome testing to see if erythropoetin is better than salt water injection (placebo) in protecting the brain. |
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