The regulatory environment is actively evolving
doi: 10.1016/S2213-8587(19)30249-9 [DOI] [PubMed] [Google Scholar] 4.Tuttle KR, Bain SC, Bosch-Traberg H, et al
Molecular durability is achieved through peptide engineering strategies that (i) confer resistance to DPP-4 cleavage, typically via N-terminal modification, and/or (ii) extend systemic exposure through fatty-acid acylation, which enhances albumin binding and slows renal clearance, thereby prolonging receptor activation [18]
Uysal N, Kizildag S, Yuce Z, Guvendi G, Kandis S, Koc B, et al
Peptide sequence: NleAspHisDPheArgTrpLysNH2 (often written as NleAsp(1)HisDPheArgTrpLys(1)), incorporating nonnatural residues and a cyclic backbone to resist enzymatic degradation and prolong biological activity in preclinical models