Aeglea BioTherapeutics, Inc. is a biotechnology company, which is engaged in the development of enzyme-based therapeutics in the field of amino acid metabolism to treat inborn errors of metabolism (IEM) and cancer. The Company's product pipeline includes AEB1102, AEB3103, AEB2109 and AEB4104. Its lead product candidate, AEB1102, is engineered to degrade the amino acid arginine and is being developed to treat over two extremes of arginine metabolism, including arginine excess in patients with Arginase I deficiency, an IEM, as well as some cancers, which have shown to have a metabolic dependence on arginine. AEB1102 reduces blood arginine levels in nonclinical and oncology clinical studies. AEB3103 targets the degradation of the amino acid cysteine/cystine. AEB2109 targets the degradation of the amino acid methionine. AEB4104 targets the reduction of elevated levels of the amino acid homocystine associated with the IEM classical homocystinuria.