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Updated: May 24, 2025

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2FA-Platform Generates Dual Fatty Acid-Conjugated GLP-1 Receptor Agonist TE-8105 with Enhanced Diabetes, Obesity, and
Mun-Teng Wong1, Pei-Hsuan Lin1, Wei-Chen Lin2
1Immunwork, Inc., C520, No. 99, Lane 130, Academia Road, Section 1, Nangang, Taipei 115021, Taiwan.
Abstract:
Conjugating two fatty acids (2FAs) to peptide drugs can improve pharmacokinetics and therapeutic effects. However, optimizing FA spacing, chain combination, and attachment site to simultaneously enhance albumin binding and drug efficacy remains challenging. We introduce a multiarm linker technology enabling precise control of 2FA spacing, composition, and attachment. By applying this technology to a modified glucagon-like peptide-1 (GLP-1) and screening various 2FA-GLP-1 conjugates differing in linkage, linker, and FA properties for improved albumin affinity, pharmacokinetics, and pharmacodynamics, TE-8105 emerged as a promising candidate. TE-8105 outperformed semaglutide, showing improved long-term glycemic control, weight loss, and liver health in diabetic mice, and dose-dependent weight loss and favorable body composition changes in obese mice. A distinct advantage of TE-8105 over semaglutide is its low-dose reduction of liver steatosis and improvement of liver health in nonalcoholic steatohepatitis mice. The multiarm linker technology provides a versatile platform for developing improved 2FA-peptide therapeutics.
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