- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01420991
Brain and Abdominal Aneurysm Study (BAAS)
Brain and Abdominal Aneurysm Study (BAAS)
Aneurysmal subarachnoid hemorrhage (aSAH) is the most deadly kind of stroke. Each year, 40,000 Americans have SAH. Case-fatality approaches 60% and more than half of those who die do so before reaching the hospital. Most commonly, SAH results from rupture of an intracranial aneurysm. Screening high-risk individuals could identify those at greatest risk and decrease the devastating effect of SAH. Aortic Aneurysm also constitutes a major public health problem with high lethality. Current estimates are that ruptured aortic aneurysm kills 13,000 Americans each year. Screening efforts have effectively lowered mortality from aortic aneurysm rupture but a high proportion of those who die did not have a diagnosis of aortic aneurysm prior to rupture.
The relationship between intracranial and aortic aneurysm has long been recognized, but poorly quantified. Recent genome-wide association studies (GWAS) provide a molecular biological evidence for a shared pathophysiology. The chromosome 9p21 locus confers increased risk for both intracranial aneurysms and aortic aneurysms. These GWAS data, along with linkage data for other susceptibility loci, indicate that individuals and families harboring one type of aneurysm may be at especially increased risk of the other.
The rationale for this project is that opportunistic screening for abdominal aortic aneurysms (AAA) may be warranted in patients who present with aneurysmal subarachnoid hemorrhage. This study is meant to see if the yield of screening in this population is too low to justify its routine use. The investigators plan to systematically screen for AAA in all cases of aSAH presenting to MCH for treatment. If no individual out of 81 consecutively screened cases of aSAH has evidence of AAA, then the investigators can have strong confidence that there is a less than 5% chance of finding an AAA in the patient population.
Study Overview
Status
Conditions
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Locations
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Florida
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Jacksonville, Florida, United States, 32224
- Recruiting
- Mayo Clinic in Florida
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Contact:
- Neurosciences Research
- Phone Number: 904-953-2000
- Email: strokeresearch@mayo.edu
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Principal Investigator:
- James Meschia, MD
-
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Minnesota
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Rochester, Minnesota, United States, 55905
- Recruiting
- Mayo Clinic in Rochester
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Principal Investigator:
- Guiseppe Lanzino, MD
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Contact:
- Kiersten Sydnor
- Phone Number: 507-255-9846
- Email: strokeresearch@mayo.edu
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
- Men and women age ≥ 18 years.
- Diagnosis of intracranial aneurysm secured by magnetic resonance angiography (MRA), computed tomographic angiography (CTA), or catheter-based cerebral angiography.
- Diagnosis of subarachnoid hemorrhage diagnosed by head CT, brain MRI or lumbar puncture.
- Provides written informed consent.
- No know diagnosis of aortic aneurysm
- No history of prior screening for aortic aneurysm
- No condition like recent abdominal surgical scar that would preclude abdominal ultrasonography
- No therapy like abdominal hypothermia pads that would preclude abdominal ultrasonography
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Only
- Time Perspectives: Prospective
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Prevalence
Time Frame: day 1
|
The primary aim is to determine the proportion of patients who are found to have an AAA at the time of enrollment.
|
day 1
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Assessment of functional outcomes at 30 days
Time Frame: 30days
|
Functional outcomes will be assessed via telephone at one month post hospital discharge
|
30days
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: James Meschia, MD, Mayo Clinic
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 11-003509
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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