Evaluate the Long-Term Safety and Efficacy of Evinacumab in Patients With Homozygous Familial Hypercholesterolemia

The primary objectives of the study are: * To evaluate the long-term safety and tolerability of evinacumab in patients with Homozygous Familial Hypercholesterolemia (HoFH) * To evaluate the long-term safety and tolerability of evinacumab in adolescent patients with HoFH The secondary objectives of the study are: * To evaluate the effect of evinacumab on lipid parameters in patients with HoFH * To evaluate the effect of evinacumab on lipid parameters in adolescent patients with HoFH * To evaluate the potential development of anti-evinacumab antibodies