Biomarker-Led Optimization of Successful Surgical Outcomes in Moyamoya
BLOSSOM
Personalized Hemodynamic and Metabolic Signatures of Revascularization Response in Moyamoya Disease
2 other identifiers
observational
100
1 country
2
Brief Summary
The goal of this work is to use advanced magnetic resonance imaging (MRI) methods to assess brain blood flow and vascular function in adults with moyamoya disease (MMD). MMD is a condition characterized by narrowing or obstruction of major arteries in the brain and people with MMD have a high risk of stroke. Study participants will be enrolled from Vanderbilt University Medical Center and Johns Hopkins Hospital and will undergo up to two MRI scans where measurements of cerebrovascular reserve are performed using inhaled room air mixed with 5% carbon dioxide. Scans will be performed before and after surgeries to treat MMD, all surgeries are clinically indicated and are not research procedures. To further understand how surgeries impact brain health, we will also perform neurological exams and cognitive testing at approximately the same time as the imaging scans. The overall goal is to incorporate advanced imaging and cognitive assessments to understand how surgeries improve brain health in these patients, and furthermore, to use this information to develop improved screening tools for stroke risk and decisions about surgery.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Sep 2023
Longer than P75 for all trials
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 11, 2023
CompletedFirst Submitted
Initial submission to the registry
September 30, 2024
CompletedFirst Posted
Study publicly available on registry
October 9, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 11, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 11, 2030
January 14, 2026
January 1, 2026
6 years
September 30, 2024
January 13, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Revascularization success
The outcome measure will be the number of patients with successful surgical revascularization.
6 years
Secondary Outcomes (1)
Infarct development
6 years
Study Arms (2)
Moyamoya
Adults diagnosed with Moyamoya who are being considered for revascularization surgery.
Control
Healthy adults who will under go a BOLD MRI for research purposes.
Interventions
The study will utilize the MRI diagnostic reactivity test to evaluate cerebrovascular reactivity in patients with moyamoya and healthy controls. All participants (patients and controls) receive the same diagnostic scan, and there is no cross-over, factorial, or sequential nature to the study.
Eligibility Criteria
Adults with moyamoya disease.
You may qualify if:
- Moyamoya
- Clinical diagnosis of moyamoya disease as defined by gold-standard catheter angiography and consensus adjudication of imaging and neurological findings
- Age = 18-60 years
- Participants for the surgical revascularization aims must be scheduled for clinically indicated indirect surgical revascularization of at least one hemisphere
- Speak and read English
- Healthy controls
- No major medical conditions
- Age = 18-60 years
- Speak and read English
- Able to complete 2 study MRIs and all other study procedures
You may not qualify if:
- Both moyamoya and healthy controls
- History of other major neurological conditions (including but not limited to Parkinson\'s disease, Alzheimer\'s disease, and Multiple Sclerosis) as confirmed by neuroimaging and neurological evaluation (central adjudication committee).
- History of traumatic brain injury
- Independent medical condition expected to lead to death within two years.
- Condition associated with syndromic moyamoya (including but not limited to sickle cell disease, atherosclerosis, neurofibromatosis, Down syndrome).
- Severe respiratory illness including but not limited to asthma or chronic obstructive pulmonary disease.
- \. Contraindication to 3 Tesla MRI 8. Pregnancy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Johns Hopkins University
Baltimore, Maryland, 21218, United States
Vanderbilt University Medical Center
Nashville, Tennessee, 37212, United States
Biospecimen
Blood (10 mL) and Urine (10 mL) samples.
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Manus J Donahue, MBA, PhD
Vanderbilt University Medical Center
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Neurology
Study Record Dates
First Submitted
September 30, 2024
First Posted
October 9, 2024
Study Start
September 11, 2023
Primary Completion (Estimated)
September 11, 2029
Study Completion (Estimated)
September 11, 2030
Last Updated
January 14, 2026
Record last verified: 2026-01
Data Sharing
- IPD Sharing
- Will not share
This study will not be sharing IPD with other researchers in order to protect participant privacy.