Evaluation of Predictors of Aortic Aneurysm Growth and Rupture

NCT ID: NCT02022436

Last Updated: 2023-11-13

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

66 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-05-31

Study Completion Date

2022-02-28

Brief Summary

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The goal is to non-invasively study the metabolic processes within the aortic wall that are thought to explain progression to clinical manifestations of an aortic aneurysm.

Hypothesis is that the non-invasive imaging of Abdominal Aortic Aneurysm (AAA) with contrast ultrasound, coupled with serum biomarker measurements will allow the identification of the vulnerable aortic wall and patients who are at risk of AAA growth or rupture.

Detailed Description

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Aim#1: Prospective Contrast Ultrasound (CUS) imaging of patients with AAA to predict AAA growth and test gender differences in rate of growth and rupture.

Aim#2: Serum biomarker testing of patient with AAA. CUS findings will be correlated with serum biomarkers and AAA wall histology.

Prospective Contrast Ultrasound imaging of patients with AAA as part of a pilot feasibility study to predict AAA growth and test gender differences in rate of growth and rupture. CUS findings will be correlated with serum biomarkers and AAA wall histology. Potential significance: This study will evaluate the AAA wall and will be based on detecting areas of increased vasa vasorum density within the aneurysm wall and intraluminal thrombus, which indicate regional ischemia and inflammation of the aortic wall and propensity for weakening, enlargement or rupture. This novel evaluation of the aortic wall in patients with AAA will allow individualized treatment based on the biological potential for growth and rupture.

Conditions

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Abdominal Aortic Aneurysm

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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contrast ultrasound for patients with AAA

Contrast ultrasound

Group Type ACTIVE_COMPARATOR

Contrast Ultrasound

Intervention Type DRUG

Definity® is the contrast agent that will be administered by intravenous injection by a registered nurse during the ultrasound (contrast enhanced ultrasound (CUS). The purpose is to assist in identifying differences in AAA characteristics based on gender and AAA stability and growth.

contrast ultrasound for patients without arterial disease

contrast enhanced ultrasound

Group Type ACTIVE_COMPARATOR

Contrast Ultrasound

Intervention Type DRUG

Definity® is the contrast agent that will be administered by intravenous injection by a registered nurse during the ultrasound (contrast enhanced ultrasound (CUS). The purpose is to assist in identifying differences in AAA characteristics based on gender and AAA stability and growth.

Interventions

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Contrast Ultrasound

Definity® is the contrast agent that will be administered by intravenous injection by a registered nurse during the ultrasound (contrast enhanced ultrasound (CUS). The purpose is to assist in identifying differences in AAA characteristics based on gender and AAA stability and growth.

Intervention Type DRUG

Other Intervention Names

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Definity

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of AAA with confirmation of diagnosis of any size aneurysm with imaging.
* 21 years of age or older
* ability to give informed consent.

Exclusion Criteria

* Inability to provide an informed consent
* Known allergy to Definity
* Unstable cardiopulmonary conditions
* pregnancy
Minimum Eligible Age

21 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute on Aging (NIA)

NIH

Sponsor Role collaborator

Rabih A. Chaer

OTHER

Sponsor Role lead

Responsible Party

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Rabih A. Chaer

Associate Professor of Surgery

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Rabih Chaer, MD

Role: PRINCIPAL_INVESTIGATOR

UPMC UPP

Locations

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University of Pittsburgh Medical Center, Division of Vascular Surgery

Pittsburgh, Pennsylvania, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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1R03AG042352-01

Identifier Type: NIH

Identifier Source: secondary_id

View Link

AG042352-01

Identifier Type: -

Identifier Source: org_study_id

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