- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02869464
UVA Brain and Aortic Aneurysm Study (BAAS)
August 15, 2016 updated by: Bradford Worrall, MD, University of Virginia
The University of Virginia Brain and Aortic Aneurysm Study
The purpose of this study is to examine the percentage of patients who present with abdominal aortic aneurysms (AAA) will also have intracranial aneurysms (IA) and conversely; to examine the percentage of patients who present with intracranial aneurysms will also have abdominal aortic aneurysms.
Study Overview
Status
Unknown
Conditions
Intervention / Treatment
Detailed Description
The investigators have previously generated estimates for cost effectiveness of each arm of this reciprocal screening protocol based on literature dervied estimates of coprevalence and other key factors in a decision tree model to compare costs and outcomes.
They measured expected outcomes using quality-adjusted life years (QALY) and the incremental cost-effectiveness ratios (ICER).
The current study will involve establishment of the true co-prevalence and recalculation of the ICERs and QALYs.
Based on their literature derived models we previously found an ICER of $34.01/QALY for AAA screening in IA patients and an ICER of $6,401.91/QALY
for IA screening in AAA patients.
Both of these are well below the societal accepted threshold of $60,000/QALY.
However, both models were sensitive to co-prevalence.
In the current study the investigators will therefore determine the actual cost-effectiveness of performing additional radiographic procedures and genetic counseling.
The investigators will also bank DNA and RNA for future research.
Study Type
Observational
Enrollment (Anticipated)
360
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Claire L McKinley, C.C.R.P.
- Phone Number: 434-924-9271
- Email: cw9ne@hscmail.mcc.virginia.edu
Study Contact Backup
- Name: Julia Krupa, M.S.
- Phone Number: 434-924-4023
- Email: jkk8d@virginia.edu
Study Locations
-
-
Virginia
-
Charlottesville, Virginia, United States, 22903
- Recruiting
- University Of Virginia
-
Contact:
- Claire L McKinley, C.C.R.P.
- Phone Number: 434-924-9271
- Email: cw9ne@virginia.edu
-
Contact:
- Julia K Krupa, M.S.
- Phone Number: 434-924-4023
- Email: jkk8d@virginia.edu
-
Principal Investigator:
- Bradford B Worrall, M.D.
-
-
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
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
Patients who have been diagnosed with either a IA or AAA.
Description
Inclusion Criteria:
- Age 18 years or older
- Clinical and radiographic diagnosis of either abdominal aortic aneurysm (AAA) or intracranial cerebral aneurysm (IA). Aneurysm may be symptomatic (s/p rupture or mass effect) or asymptomatic (detected as part of screening or incidentally discovered. Aneurysms int he brain may be multiple. AAA will be defined as >= 3 cm by any imaging modality. IA will be defined as >= 3 mm on any imaging modality.
- Able to provide a valid informed consent (self or legally authorized representative)
Exclusion Criteria:
- Contra-indication for MRI/A (embedded metal, intractable claustrophobia, pacemaker, etc.)
- Intracranial aneurysm associated with arteriovenous malformation
- Clinical or radiographic diagnosis of mycotic aneurysm
- Substantial pre-existing neurological or psychiatric illness that would confound neurological assessment or other outcome assessment.
- Other serious conditions that make the patient unlikely to survive long enough to benefit from the screening program.
- Inability to follow the protocol or return for screening test or genetic counseling.
- Unwilling to have reports from imaging and genetic counselor sent to a clinician (PCP, testing surgeon, etc)
Note: Pregnancy is not a reason to exclude, but imaging done for the study will be postponed until after the subject has given birth.
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 |
Intervention / Treatment |
---|---|
Patients presenting with IA
These patients will undergo an abdominal ultrasound (Imaging - Ultrasound) to test for abdominal aortic aneurysm(s).
RNA, DNA testing will be planned on banked samples
|
Abdominal Ultrasound
To test for the co-prevalence of shared genetic markers in afflicted populations.
|
Patients presenting with AAA
These patients will undergo a non-contrast enhanced magnetic resonance angiogram (MRA) (Imaging - MRA) to test for intracranial aneurysm(s).
RNA, DNA testing will be planned on banked samples
|
To test for the co-prevalence of shared genetic markers in afflicted populations.
Non-contrast Enhanced Magnetic Resonance Angiogram
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Revised cost-effective analysis measured in dollars/quality adjusted life years (QALY)
Time Frame: 2 years
|
Revision of cost effective analysis for screening for AAA in those presenting with IA and for screening for IA in those with AAA.
|
2 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Analysis of Covariates for co-prevalence of aneurysms measured as present or absent
Time Frame: Year 2
|
Analysis of covariates associated with co-prevalence of aneurysms in both territories.
|
Year 2
|
Biorepository (samples stored in freezer)
Time Frame: Year 2
|
Develop a biorepository of DNA and RNA for individuals presenting with either IA or AAA, allowing specific future testing of shared genetic risk factors.
|
Year 2
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Bradford B Worrall, MD, MSc, University Of Virginia
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
April 1, 2014
Primary Completion (Anticipated)
April 1, 2017
Study Registration Dates
First Submitted
December 1, 2014
First Submitted That Met QC Criteria
August 15, 2016
First Posted (Estimate)
August 17, 2016
Study Record Updates
Last Update Posted (Estimate)
August 17, 2016
Last Update Submitted That Met QC Criteria
August 15, 2016
Last Verified
August 1, 2016
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 17341
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
IPD Plan Description
Summary data will be shared and published.
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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