Cardiovascular Disease Clinical Trial
Official title:
Natural History Study of CADASIL
Background: CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarct and leukoencephalopathy) is a genetic disorder. It causes narrowing of the small blood vessels and can lead to strokes and dementia. Researchers want to monitor people with CADASIL over time. Objective: To learn more about how CADASIL affects a person s blood vessels over time. Eligibility: Adults ages 18 and older who have CADASIL, and healthy volunteers. Design: Participants will be screened with a medical record review. Participants will have 4 study visits over 9 years. Visits will last 6 8 hours per day, for 2 4 days. Participants will give blood and urine samples. They will have an electrocardiogram to record their heart s electrical activity. They will fill out a family tree. They will have tests that measure mental abilities like memory and attention. They may have a skin biopsy. They may have a lumbar puncture. Participants will have an eye exam. Their pupils will be dilated. They will receive a dye via intravenous (IV) line. Pictures will be taken of their eyes. Participants will have an imaging scan of their brain. They may receive a contrast agent via IV. Participants blood flow and blood vessel flexibility will be measured. In one test, a probe will be pressed against the skin of the their wrist, neck, and groin. In another test, they will hold one arm still while a microscope makes videos of the blood flow through a fingernail. In another test, they will perform light exercise or other activities while wearing an elastic band around their head or probes placed on their arm or leg. Healthy volunteers will complete some of the above tests.
Study Description: This is a disease discovery/natural history protocol. We will enroll 100 CADASIL subjects to perform in-depth prospective and retrospective evaluations for research purposes. Some evaluations will be compared to healthy controls. Objectives: Primary Objective: This study will examine the pathogenesis and progression of CADASIL through comprehensive evaluations, and molecular studies on biospecimens collected from affected individuals. Secondary Objective: Comprehensive evaluations will be used to investigate variability of the genotype and clinical phenotype of CADASIL during the study period. Exploratory Objective: Healthy controls may be used for comparison for some of the research testing where data on normal values is lacking. Healthy controls will not be used to establish normal range values but for qualitative comparison with CADASIL population. ;
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