The purpose of this study is to better understand the changes in cholesterol levels, the blood vessels, and overall health of children and adults with homozygous familial hypercholesterolemia (hoFH).
Homozygous familial hypercholesterolemia is a rare (~1 in 1,000,000) inherited (genetic) disorder that is usually due to a double mutation in the gene for the Low Density Lipoprotein (LDL) receptor.