Renewing Kuvan (Sapropterin) Approval with UnitedHealthcare in Washington: 2025 Requirements & Timeline
Answer Box: Kuvan Renewal Requirements
UnitedHealthcare requires annual prior authorization renewal for Kuvan (sapropterin) with specific documentation: active phenylalanine-restricted diet, sustained blood Phe reduction from baseline (typically ≥20-30%), and confirmation you're not using concurrent Palynziq therapy. Start renewal 60-90 days before expiration. Submit through the UnitedHealthcare Provider Portal