Recurrent Carotid Stenosis
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT00000527|
Recruitment Status : Completed
First Posted : October 28, 1999
Last Update Posted : December 11, 2013
|Condition or disease||Intervention/treatment||Phase|
|Cardiovascular Diseases Carotid Stenosis Cerebrovascular Disorders Heart Diseases Vascular Diseases||Drug: aspirin Drug: dipyridamole||Phase 2|
Following endarterectomy, platelets adhere and aggregate on the endarterectomized surface and release platelet-derived growth factor which induces smooth muscle cell migration and proliferation which may result in restenosis. Many patients had been treated with aspirin and dipyridamole, but not in a controlled trial. The Recurrent Carotid Stenosis Study established whether antiplatelet therapy was beneficial in the prevention of recurrent carotid artery stenosis.
Randomized, double-blind. Eighty-three patients (90 endarterectomies) were randomly assigned to receive 325 mg of oral aspirin plus 75 mg of dipyridamole, beginning 12 hours pre-operatively, followed by a second dose administered within eight hours after the operation, and given three times daily thereafter for one year. Eighty patients (85 endarterectomies) received placebo. After the adequacy of the surgical procedure was confirmed by intraoperative angiography, restenosis at the endarterectomy sites was evaluated using serial duplex ultrasound before hospital discharge and at three-month intervals postoperatively for one year.
|Study Type :||Interventional (Clinical Trial)|
|Study Start Date :||August 1986|
|Primary Completion Date :||November 1998|
|Study Completion Date :||November 1998|