Genetics of Peripheral Artery Genomics

January 21, 2016 updated by: Duke University

Genetics of Peripheral Artery Disease

Peripheral artery disease is a disease that contributes to significant morbidity and mortality of millions of Americans yearly. Very little is known about the pathophysiology of atherosclerosis in peripheral artery disease. We plan to collect peripheral arteries and muscle tissue from patients undergoing amputation for end stage peripheral arterial occlusive disease. By extracting the RNA from these arteries and tissues and comparing them with RNA expression from normal arteries, we hope to have a better understanding of the pathophysiology of atherosclerosis in this setting. We aim to prove the hypothesis that a novel gene expression pattern can be discovered by the successful extraction of RNA from plaques from human peripheral arteries.

Study Overview

Status

Completed

Conditions

Detailed Description

Patients scheduled to undergo lower extremity amputation will be consented for extraction of plaque from the carotid artery or arterial tissue from the amputated limbs. The surgeon will perform the amputation, then the harvest team will collect arterial tissue from amputated limbs. These samples will be immersed in RNALater solution to preserve the integrity of the RNA. Tissues will stored at -80oC in the RNALater until the RNA is later extracted using a standardized protocol. The RNA will be examined for quality using an Agilent bioanalyzer, and will then be processed on Affymetrix U133A chips for gene expression data. The data will be analyzed with the MATLAB software package.

Study Type

Observational

Enrollment (Actual)

122

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • North Carolina
      • Durham, North Carolina, United States, 27710
        • Duke University Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with peripheral artery occlusive disease.

Description

Inclusion Criteria:

  • Patients undergoing amputations for peripheral artery disease
  • Patients undergoing free fibular transfer

Exclusion Criteria:

  • those that are not able to consent to the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
arteries from PAD patients
peripheral arteries from patients undergoing amputation for end stage peripheral arterial occlusive disease
arteries from Free Fib transfers
peripheral arteries from patients without evidence of peripheral arterial occlusive disease

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Discover novel gene expression pattern in peripheral arterial disease
Time Frame: ongoing
ongoing

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Duke University

Investigators

  • Principal Investigator: Jeffrey H Lawson, MD, PhD, Duke University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2004

Primary Completion (Actual)

January 1, 2016

Study Completion (Actual)

January 1, 2016

Study Registration Dates

First Submitted

February 3, 2008

First Submitted That Met QC Criteria

February 3, 2008

First Posted (Estimate)

February 14, 2008

Study Record Updates

Last Update Posted (Estimate)

January 25, 2016

Last Update Submitted That Met QC Criteria

January 21, 2016

Last Verified

January 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Pro00008270
  • 4814-07 (Other Identifier: Duke legacy protocol number)

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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