CADASIL (Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy) is a rare, inherited disorder caused by mutations in the NOTCH3 gene. The condition is characterized by subcortical infarcts (small strokes), white matter changes visible on brain MRIs, and a tendency for recurrent strokes. Our treatment uses stem cells that produce VEGF (Vascular Endothelial Growth Factor) which is vital to growing and maintaining capillaries and may help repair microvasculature in the brain.