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These products are intended for research purposes only and are not for human consumption. Not FDA approved. Not intended to diagnose, treat, cure, or prevent any disease.

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Type
Synthetic linear peptide (dual GLP-1R/GIPR agonist; acylated, 39 residues)
Molecular formula
C225H348N48O68
Molecular weight
~4,814 g/mol
CAS number
2023788-19-2
Amino acids
39
Fatty acid chain
C20 diacid (icosanedioyl) at Lys20
Sequence
Tyr–Aib–Glu–Gly–Thr–Phe–Thr–Ser–Asp–Tyr–Ser–Ile–Aib–Leu–Asp–Lys–Ile–Ala–Gln–Lys–Ala–Phe–Val–Gln–Trp–Leu–Ile–Ala–Gly–Gly–Pro–Ser–Ser–Gly–Ala–Pro–Pro–Pro–Ser (C-terminal amide)
Modification
Positions 2 and 13 are α-aminoisobutyric acid (Aib); Lys20 bears an Nε-conjugated γ-Glu-(AEEA)₂ linker with a C20 fatty diacid (icosanedioyl); C-terminal Ser is amidated.
A class-B G protein-coupled receptor agonist targeting two incretin receptors, GLP-1R and GIPR. The peptide backbone closely resembles native GLP-1 and GIP; the N-terminal region engages the orthosteric site of each receptor via hydrogen bonds and ionic interactions. At GLP-1R, signaling favors the cAMP (G-protein) pathway over β-arrestin recruitment, producing a biased signaling profile relative to native GLP-1; at GIPR, both G-protein and β-arrestin pathways are activated with efficacy comparable to native GIP. The C20 fatty-diacid chain at Lys20 promotes reversible albumin binding, extending circulatory half-life; Aib substitutions at positions 2 and 13 confer resistance to enzymatic degradation by DPP-4.
Lyophilized
20°C (-80°C long term)
powder typically stable ~24 months.
Aliquot to avoid freeze-thaw; protect from light; keep sealed and dry.
Reviews
Galindo RJ, Cheng AYY, Longuet C, et al. (2026). Diabetes Ther — Review of LUV TRZ2 mechanism of action and metabolic research context
Nauck MA, D'Alessio DA (2022). Cardiovasc Diabetol — Review of dual GIP/GLP-1 receptor agonism as a research approach in metabolic disease
Reviews
Sun B, Li Z, Xiao Y, et al. (2022). Nat Rev Drug Discov — Review of LUV TRZ2 receptor pharmacology and pharmacokinetic characterization
Min T, et al. (2021). Diabetes Ther — Narrative review of dual GIP/LUV TRZ2 receptor agonism and the SURPASS clinical trial program
Nowak M, et al. (2022). Endokrynol Pol — Narrative review of dual GIP/LUV TRZ2 receptor agonist pharmacology and metabolic activity
Forzano I, et al. (2022). Int J Mol Sci — Systematic review of clinical trial data for LUV TRZ2 dual incretin receptor agonist
Tang Y, et al. (2022). Front Pharmacol — Systematic review and meta-analysis of LUV TRZ2 dual incretin receptor agonist clinical study data
Bhagavathula AS, et al. (2021). Pharmaceuticals (Basel) — Systematic review and meta-analysis of randomized phase II/III clinical studies of LUV TRZ2
Campbell JE, et al. (2023). Cell Metab — Review of GIPR/GLP-1R dual agonist pharmacology, chemistry, physiology, and clinical applications
Clinical
Jastreboff AM, Aronne LJ, Ahmad NN, et al. (2022). N Engl J Med — Phase 3 randomized clinical study (SURMOUNT-1); cited for study-design context
Frias JP, Davies MJ, Rosenstock J, et al. (2021). N Engl J Med — Phase 3 randomized clinical study (SURPASS-2); cited for study-design context
Frias JP, et al. (2018). Lancet — Phase 2 randomized clinical study of dual GIP/LUV TRZ2 peptide; cited for study-design context
Primary research
Sun B, Willard FS, Feng D, et al. (2022). Proc Natl Acad Sci U S A — Cryo-EM structural study of GLP-1R and GIPR complexes with LUV TRZ2
Willard FS, Douros JD, Gabe MBN, et al. (2020). JCI Insight — In vitro receptor pharmacology of LUV TRZ2 at GIPR and GLP-1R — biased signaling characterization
Coskun T, et al. (2018). Mol Metab — Preclinical pharmacological characterization of LUV TRZ2 as a dual incretin receptor agonist
Ludvik B, et al. (2021). Lancet — Randomized clinical study (SURPASS-3); cited for study-design context
Del Prato S, et al. (2021). Lancet — Phase 3 randomized clinical study (SURPASS-4); cited for study-design context
Dahl D, et al. (2022). JAMA — Phase 3 randomized clinical study (SURPASS-5); cited for study-design context
Garvey WT, et al. (2023). Lancet — Phase 3 randomized clinical study (SURMOUNT-2); cited for study-design context
Samms RJ, et al. (2021). J Clin Invest — Preclinical study: GIPR agonism and insulin sensitization in a rodent metabolic model
El K, et al. (2023). Nat Metab — In vitro study: GIPR required for LUV TRZ2 incretin co-agonist hormone secretion from human islets
Regmi A, et al. (2024). Cell Metab — In vitro/preclinical study: LUV TRZ2 modulates adipocyte nutrient metabolism via long-acting GIPR activation