Description
AV-TRIM: GLP-3 (LY3437943) Research Peptide
AV-TRIM is listed as a GLP-3 (LY3437943) research peptide. LY3437943 is an investigational 39-residue peptide studied for activity at three hormone receptors: glucagon-like peptide-1 (GLP-1), glucose-dependent insulinotropic polypeptide (GIP), and glucagon (GCG).
GLP-3 is an informal designation used in the research peptide marketplace, not an official scientific name. AV-TRIM is offered as 10 mg of lyophilized (freeze-dried) powder in a sealed vial for nonclinical laboratory research. The identity and composition of individual production lots require batch-specific verification.
Triple-Hormone Receptor Research
LY3437943 has been studied as a triple-receptor agonist because it demonstrates activity at three distinct receptor systems in experimental research.
GLP-1 receptor: Associated with glucose-dependent insulin signaling, gastric emptying, and pathways involved in appetite and satiety.
GIP receptor: Associated with glucose-dependent insulin secretion and metabolic signaling.
Glucagon receptor: Associated with hepatic glucose metabolism, lipid metabolism, and energy-expenditure pathways.
These descriptions identify biological pathways studied in relation to the investigational molecule. They are not instructions for use or claims regarding the effects of AV-TRIM research material.
Discovery and Preclinical Characterization
Scientists at Eli Lilly and Company described the investigational compound LY3437943 in a 2022 publication by Coskun and colleagues in Cell Metabolism.
Their research included in vitro receptor assays and experiments in mice. In laboratory assays, the compound demonstrated relatively balanced activity at glucagon and GLP-1 receptors, with greater activity at the GIP receptor.
View Coskun et al. (2022), Cell Metabolism
Molecular Structure and Chemical Modifications
The published molecular structure of LY3437943 contains 39 amino acid residues, including modified amino acids not found among the twenty standard protein-building amino acids.
- Positions 2 and 20: 2-aminoisobutyric acid (Aib).
- Position 13: Alpha-methyl-L-leucine.
- Position 17: Lysine with a modified side chain.
- Side-chain modification: A [2-(2-aminoethoxy)ethoxy]acetyl linker and gamma-glutamic acid connected to a C20 diacid group.
- C-terminus: Serinamide.
The complete systematic chemical designation of the investigational molecule is available in the FDA substance record, UNII NOP2Y096GV, and the PubChem substance database.
FDA Substance Record
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PubChem Substance Record
Published Phase 2 Clinical Research
LY3437943 has been investigated in randomized, double-blind, placebo-controlled clinical trials conducted as part of its pharmaceutical development program.
A 2023 publication by Jastreboff and colleagues in the New England Journal of Medicine described a 48-week phase 2 study involving 338 adults.
View Jastreboff et al. (2023), NEJM
A separate phase 2 study by Rosenstock and colleagues, published in The Lancet in 2023, enrolled 281 adults across 42 United States research centers. That investigation included dulaglutide as an active comparator.
View Rosenstock et al. (2023), The Lancet
These studies examined investigational pharmaceutical material within controlled clinical research programs funded by Eli Lilly, the developer. Their findings do not establish the identity, purity, equivalence, or suitability of AV-TRIM laboratory research vials.
Investigational Development Status
LY3437943 has been studied through multiple phases of pharmaceutical research, including phase 3 clinical development. Its investigational status and ongoing studies can be reviewed through publicly accessible research registries.
ChEMBL identifies the compound under CHEMBL5095485. ClinicalTrials.gov provides information about registered clinical investigations associated with the development identifier.
View ChEMBL Compound Record
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View ClinicalTrials.gov Studies
Frequently Asked Questions
GLP-3 is an informal marketplace term commonly associated with research involving three hormone receptor pathways: GLP-1, GIP, and glucagon. It is not an official scientific classification or international nonproprietary name.
A triple-receptor agonist is a molecule that activates three receptor systems. LY3437943 has been investigated for activity at GLP-1, GIP, and glucagon receptors in experimental and clinical research.
No equivalence has been established. Published clinical trials examine pharmaceutical investigational material and do not independently verify the chemical identity, purity, or composition of AV-TRIM research vials.
AV-TRIM is listed as 10 mg of lyophilized (freeze-dried) powder in a sealed research vial. It is supplied for nonclinical laboratory research and is not a finished pharmaceutical preparation.
AV-TRIM is supplied exclusively for lawful nonclinical laboratory research. Not for human or animal consumption, administration, or therapeutic use. Purchasers are responsible for proper handling and compliance with applicable laws.

