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Pegzilarginase-nbln

From PeptideSciences101, the open peptide reference. · Last updated: May 29, 2026
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Overview

Pegzilarginase-nbln (brand: Loargys) is a PEGylated recombinant human arginase 1 enzyme. It degrades L-arginine to reduce its toxic accumulation in patients with Arginase 1 Deficiency (a rare urea cycle disorder). FDA approved February 23, 2026 for hyperarginemia in patients 2 years and older with Arginase 1 Deficiency, used with dietary protein restriction. Administered by IV infusion.

Protocols & dosing

Detailed dosing protocols have not yet been catalogued.

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References

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