Participants who successfully received all 4 doses of sebelipase alfa in Study LAL-CL01 and opted to continue treatment in the extension study underwent screening assessments to determine study eligibility. Eligible participants initiated treatment in the extension study at least 4 weeks after their last dose of sebelipase alfa in Study LAL-CL01. This extension study consisted of a treatment period of up to 5 years, and a follow-up period of approximately 30 days after the last dose of sebelipase alfa.
Cholesteryl ester storage disease (CESD) is the late onset phenotype for LAL deficiency, a lysosomal storage disorder, which also has an early onset phenotype that primarily affects infants. CESD can present in childhood but often goes unrecognized until adulthood when the underlying pathology is advanced. Many of the signs and symptoms are common to patients with other liver conditions.
CESD is an autosomal recessive genetic condition and is characterized by hepatomegaly, persistently abnormal liver function tests (LFTs) and type II hyperlipidemia. Splenomegaly and evidence of mild hypersplenism may affect some patients. Untreated, CESD may lead to fibrosis, cirrhosis, liver failure and death.
