Evolocumab Approved for Pediatric Patients with Heterozygous Familial Hypercholesterolemia

This article was originally published on HCPLive.com.

The US Food and Drug Administration (FDA) has approved evolocumab (Repatha) injection as an adjunct to diet or other treatment for patients aged 10 years and older with heterozygous familial hypercholesterolemia (HeFH).

Announced on September 24, the new approval expands the indicated use of evolocumab, which was previously approved as an add-on therapy for reducing LDL-C in adults with HeFH and patients with HoFH.

The approval granted to Amgen was based on findings from a pair of pediatric clinical trials. The first, involving patients aged 10-17 years with HeFH, assessed 420 mg monthly subcutaneous injection for 24 weeks; patients reported a mean 38% reduction in LDL-C versus placebo.

In the second trial, patients aged 11-17 years old with HoFH received the same evolocumab dose regimen for 80 weeks, and reported a mean 14% reduction in LDL-C compared to baseline.

Evolocumab previously received orphan drug designation from the FDA in 2013 to treat HoFH. It is not indicated for use in patients with serious hypersensitivity, either by clinical diagnosis or emerging signs or symptoms.

Approximately 1 in 250,000 individuals are diagnosed with HoFH, while HeFH is prevalent in 1 in every 250 individuals. The conditions are rare and life-threatening, characterized by gene mutations that influence the body’s clearance of cholesterol including LDL-C.