- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00341562
Genomics of In-Stent Restenosis
Genomics of In-Stent Restenosis: Endarterectomy Study
This study, conducted in Argentina at the Hospital Espa ol de la Plata and the Hospital Franc s de Buenos Aires, in collaboration with the NHLBI, will investigate possible genetic factors that lead to in-stent restenosis. A stent is a wire mesh tube that is surgically placed to open a blocked artery. The stent stays in the artery permanently, holding it open to improve blood flow. In the case of blocked coronary arteries, the stent improves blood flow to the heart muscle, relieving symptoms such as chest pain and shortness of breath. Sometimes re-growth of tissue within a stent, called in-stent restenosis, leads to narrowing of the artery, decreased blood flow, and a recurrence of symptoms. Genetic analysis may allow the identification of patient that may be at increased risk for in-stent restenosis and lead to methods of prevention and treatment.
Patients 18 years of age and older who are undergoing coronary endarterectomy (surgery to remove plaque from an artery) to treat in-stent restenosis at the Hospital Espa ol de la Plata and the Hospital Franc s de Buenos Aires may be eligible for this study.
Participants will have a blood sample drawn and undergo coronary endarterectomy. Tissue removed from the patient's artery or the stent during surgery will be analyzed for gene expression profiling and genotyping. The results will be studied along with information about the patients' medical history.
Study Overview
Status
Conditions
Detailed Description
Our laboratory is investigating the genetic basis of the vascular disease, in-stent restenosis. We hypothesize that patients with in-stent restenosis have abnormal expression of cell cycle regulatory and inflammatory genes that lead to accelerated development of vascular lesions following angioplasty, and that there is a genetic component underlying individual differences to vascular injury. We are conducting an investigation of human subjects with in-stent restenosis, entitled the CardioGene Study. The objective of the CardioGene study is to identify the genetic profile of patients at risk for in-stent restenosis. The CardioGene study completed enrollment of 465 patients in December 2004. Analysis of blood gene expression profiles, proteomic and genotyping data is currently ongoing. All analyses are conducted using peripheral blood. Concurrent analysis of restenosis tissue samples would be valuable in defining the molecular genetics of the disease.
In this complementary study of endartectomy tissues, we will collect diseased restenosis tissues removed from patients as part of their routine clinical care. We will also collect blood at the time of tissue harvesting for genomic analysis, in addition to clinical data. Genomic data will be compared to the CardioGene study findings, for the purposes of validation as well as more detailed understanding of the biology of restenosis, by investigation the molecular mechanisms of restenosis in the tissue samples.
Study Type
Enrollment
Contacts and Locations
Study Locations
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Maryland
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Bethesda, Maryland, United States, 20892
- National Heart, Lung and Blood Institute (NHLBI)
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
- INCLUSION CRITERIA
Patients 18 years of age or older
Patients undergoing coronary endarterectomy as part of their course of medical therapy. The lesion for which endarterectomy is being performed is restenosis within a bare metal stent within a native coronary artery
EXCLUSION CRITERIA
Current enrollment in a clinical trial for the treatment or prevention of in-stent restenosis.
Lesion within saphenous vein graft following coronary artery bypass grafting
Patients younger than 18 years of age
The patient is unable to provide informed consent
Study Plan
How is the study designed?
Collaborators and Investigators
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 999905234
- 05-H-N234
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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