The European Medicines Agencys 2025 synthetic peptide quality guideline treats peptide-related impurities as first-class critical quality attributes: deletion and truncated sequences, dimers, oligomers, and degradation products each need characterization, with European Pharmacopoeia practice pointing to reporting thresholds at 0.1% and identification thresholds above 0.5% for peptide-related impurities in pharmaceutical use
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Budzianowska A, Banas K, Budzianowski J, Kilowaks M
Its also critical for liver detox and immune modulation (NIH)
70 For example, compound 2j, a triazole-containing derivative, has demonstrated high potency and comparable efficacy to danuglipron in preclinical studies, suggesting it could serve as a lead compound for further development