ArticleJIMD reports2026
Long-Term Safety and Efficacy of Pegvaliase in Japanese Adults With Phenylketonuria: Final Results of a Phase III Trial.
Article in JIMD reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Phenylketonuria (PKU) is an inborn error of metabolism leading to phenylalanine (Phe) accumulation and consequent neurological, neurocognitive, and psychiatric symptoms. Pegvaliase, a pegylated recombinant phenylalanine ammonia lyase that metabolizes Phe, effectively reduced blood Phe in phase III studies in the United States. This multicenter, open-label, phase III study (jRCT2080224573) evaluated efficacy and safety of up to 4 years of pegvaliase treatment in 12 adult Japanese participants with PKU (blood Phe > 600 μmol/L). Subcutaneous pegvaliase followed an induction/titration/maintenance dosing regimen up to a maximum of 60 mg/day. After Week 52, diet and pegvaliase dose could be adjusted if blood Phe was ≤ 360 μmol/L. Mean (standard deviation [SD]) treatment duration was 166.4 (66.5) weeks. At Week 192 (
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