Xenpozyme (olipudase alfa) Medical Benefit Medication Utilization Policy
Defines medical-benefit coverage criteria, quantity limits, authorization periods, continuation criteria, and applicable coding for olipudase alfa (Xenpozyme) for treatment of acid sphingomyelinase deficiency (ASMD).
No material changes to clinical coverage or policy criteria.
Coverage Summary
Coverage stance: covered_with_criteria. This policy defines medical-benefit coverage criteria for olipudase alfa (Xenpozyme) for treatment of acid sphingomyelinase deficiency (ASMD), including quantity limits, authorization periods, continuation criteria, and applicable coding. Initial approval requires all of the following: prescribed by or in consultation with a hepatologist, pulmonologist, medical geneticist, or a provider specializing in lysosomal storage disorders; a diagnosis of ASMD with specification of phenotype (Type A, Type A/B, or Type B); documentation of an enzyme assay demonstrating deficiency in acid sphingomyelinase activity; and documentation of non-central nervous system manifestations (e.g., hepatomegaly, splenomegaly, interstitial lung disease). Continuation of therapy requires ongoing diagnosis of ASMD and documentation of improvement in clinical signs and symptoms (e.g., splenomegaly, hepatomegaly, pulmonary function). Quantity limits authorize dosing up to 6 mg/kg every 28 days. Initial authorization is allowed for 6 months and continuation authorization for 1 year. Applicable coding includes HCPCS J3590 (Unclassified biologics).
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