Clinical trial NCT02910180: Genetic, Metabolic, and Growth Factor Repository for Cerebrovascular Disorders
Official title: Genetic, Metabolic, and Growth Factor Repository for Cerebrovascular Disorders
Study type: OBSERVATIONAL
Overall status: RECRUITING
Conditions: Cerebrovascular Diseases
Ischemic Stroke
Repository
Keywords: Tissue Repository
Cerebrovascular Diseases
Stroke
Aneurysm
Arteriovenous malformation
Fistula
Intracranial Stenosis
Treatment
Registry
Outcomes
Lead sponsor: Cedars-Sinai Medical Center
Sponsor class: OTHER
First posted: 2016-09-21
Enrollment: 900
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: OTHER
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: All patients diagnosed with cerebrovascular disease. This includes both non-surgical patients (such medically managed ischemic stroke, aneurysms, moyamoya disease, arteriovenous malformation, hemorrhagic stroke, etc.) and surgically treated patients (patients with aneurysm coiling or clipping, arteriovenous malformation resection, direct or indirect revascularization procedures for ischemia, etc.).

Brief summary: This study encompasses the maintenance and utilization of a repository of samples from patients with cerebrovascular disease and stroke. The types of tissue taken are blood, cerebrospinal fluid (CSF), tissue, and microdialysis samples. Future analysis of these samples can potentially help investigators to better categorize groups of patients, understand the underlying etiology of these pathologies, identify markers that are associated with favorable or poor outcomes, and track changes that occur during the natural course of the disease or with treatment. This is a prospective observational study which will use samples from such patients to create this library which can be used to explore these questions in the future.

Detailed description: Genetic and metabolic profiling has become an important means to evaluate various pathologies, their effects on patients, and their treatments. In regards to cerebrovascular disease and stroke, there are a number of hypotheses which have been proposed. The levels and types of various angiogenic factors in the blood and tissues have been proposed to be predictive of patient outcome after ischemic stroke and treatment for stroke. Likewise, genetic factors may predict outcome or response to various types of treatments.

The role of biological samples in furthering our understandings about cerebrovascular disease and treatment are well documented. Muscle microdialysis samples have confirmed the presence of sublethal ischemia during the induction of remote ischemic preconditioning. The effects of remote ischemic preconditioning on the coagulation profile, DNA methylation, and cell cycle gene expression of patients with aneurysmal subarachnoid hemorrhage have also been elucidated. Blood samples collected in patients with intracranial arterial stenosis have produced many insights. Inflammatory cell profiles in patient who receive encephaloduroarteriosynangiosis (EDAS) surgery have been characterized. Angiogenic factor measurements have been shown to predict the degree of neovascularization in patients post-EDAS. In patients with intracranial atherosclerosis, angiogenic factor profiles were found to strongly correlate with failure of medical management and poor outcomes.

It is clear that genetic and metabolic profiling are effective tools in evaluating the effects of cerebrovascular disease and their treatments. This study encompasses the maintenance and utilization of a repository of samples from patients with cerebrovascular disease and stroke. For every patient enrolled in the study, relevant patient information such as age, gender, diagnosis, medical history, family history, procedures/treatments received, radiological reports, and patient outcomes are recorded. This information is updated upon every follow-up during the study. The types of tissue taken are blood, cerebrospinal fluid (CSF), tissue, and microdialysis samples.

Future analysis of these samples can potentially help investigators to better categorize groups of patients, understand the underlying etiology of these pathologies, identify markers that are associated with favorable or poor outcomes, and track changes that occur during the natural course of the disease or with treatment. This repository serves as the groundwork to explore these questions in the future.

Eligibility criteria: Inclusion Criteria:

* All patients diagnosed with cerebral vascular disease, regardless of gender, age, ethnicity/race, stage of disease or treatment, are eligible.
* Expected availability of clinical follow up data
* Participants must be willing to provide written, informed consent obtained in accordance with institutional and federal guidelines.

Exclusion Criteria:

* Pregnant women are excluded from the study.

Primary outcomes:
measure: Change in modified Rankin Scale (mRS) score
timeFrame: Baseline, 1 Month, 3 Months, and 6 Months
measure: Change in NIH Stroke Scale score
timeFrame: Baseline, 1 Month, 3 Months, and 6 Months
measure: Change in Barthel Index
timeFrame: Baseline, 1 Month, 3 Months, and 6 Months
measure: Change in Montreal Cognitive Assessment test score
timeFrame: Baseline, 1 Month, 3 Months, and 6 Months
Secondary outcomes:
measure: Change in Angiographic Neovascularization
timeFrame: Baseline and 6 Months
measure: Change in Angiogenic Factor Measurements
timeFrame: Baseline, 1 Month, 3 Months, 6 Months
Other outcomes:
Locations:
city: Los Angeles
country: United States
facility: Cedars-Sinai Medical Center
state: California
Study officials:
affiliation: Cedars-Sinai Neurosurgery
name: Nestor R Gonzalez, MD, MSCR
role: PRINCIPAL_INVESTIGATOR
References:
citation: Mayor F, Bilgin-Freiert A, Connolly M, Katsnelson M, Dusick JR, Vespa P, Koch S, Gonzalez NR. Effects of remote ischemic preconditioning on the coagulation profile of patients with aneurysmal subarachnoid hemorrhage: a case-control study. Neurosurgery. 2013 Nov;73(5):808-15; discussion 815. doi: 10.1227/NEU.0000000000000098.
citation: Nikkola E, Laiwalla A, Ko A, Alvarez M, Connolly M, Ooi YC, Hsu W, Bui A, Pajukanta P, Gonzalez NR. Remote Ischemic Conditioning Alters Methylation and Expression of Cell Cycle Genes in Aneurysmal Subarachnoid Hemorrhage. Stroke. 2015 Sep;46(9):2445-51. doi: 10.1161/STROKEAHA.115.009618. Epub 2015 Aug 6.
citation: Ooi YC, Laiwalla AN, Liou R, Gonzalez NR. Angiographic Structural Differentiation between Native Arteriogenesis and Therapeutic Synangiosis in Intracranial Arterial Steno-Occlusive Disease. AJNR Am J Neuroradiol. 2016 Jun;37(6):1086-91. doi: 10.3174/ajnr.A4675. Epub 2016 Jan 21.
citation: Bilgin-Freiert A, Dusick JR, Stein NR, Etchepare M, Vespa P, Gonzalez NR. Muscle microdialysis to confirm sublethal ischemia in the induction of remote ischemic preconditioning. Transl Stroke Res. 2012 Jun;3(2):266-72. doi: 10.1007/s12975-012-0153-1. Epub 2012 Apr 10.
citation: Dusick J, Hamilton R, Bilgin-Freiert A, Vespa P, Hu X, Asgari S, Gonzalez NR. Immediate Cerebrovascular and Brain Metabolic Effects of Remote Ischemic Preconditioning. Stroke; a journal of cerebral circulation. 2012; 43:A2698.
citation: Gonzalez, N. R., Liou, R. J., Rao, N., Hinman, J. D., Restrepo, L., Ali, L., … Saver, J. (2016). Abstract TP119: Angiogenic Factor Profiling in Medical Treatment of Intracranial Atherosclerosis (ICAS). Stroke, 47(Suppl 1), ATP119-ATP119.
citation: Gonzalez, N. R., Ooi, Y., Laiwalla, A., Restrepo, L., Ali, L., Liou, R., … Saver, J. (2016). Abstract TMP15: Circulating Antiangiogenic Profile Predicts Lower Degrees of Neovascularization After Indirect Revascularization With Encephaloduroarteriosynangiosis (EDAS) in Patients With Intracranial Atherosclerosis (ICAS). Stroke, 47(Suppl 1), ATMP15-ATMP15.
citation: Gonzalez, N. R., Connolly, M. J., Ooi, Y. C., Dusick, J., Bounni, F., Liebeskind, D. S., … Iruela-Arispe, L. (2015). Abstract 135: Angiogenic Factors and Response to Intensive Medical Management in Atherosclerotic Intracranial Arterial Stenosis. Stroke, 46(Suppl 1), A135-A135.
citation: Gonzalez, N. R., & Iruela-Arispe, L. (2014). Abstract T P90: Characterization of Inflammatory Cells after EDAS Surgery in Patients with Intracranial Arterial Stenosis. Stroke, 45(Suppl 1), ATP90-ATP90.
citation: Gonzalez, N. R., Liou, R., Ooi, Y., Hinman, J. D., Rao, N., Toscano, J., … Saver, J. (2016). Abstract WP138: Effects of Intensive Medical Management (IMM) and Encephaloduroarteriosynangiosis (EDAS) On VEGFA165a/b Ratios in Patients With Intracranial Atherosclerosis (ICASi. Stroke, 47(Suppl 1), AWP138-AWP138.