Comparison

AOD-9604 vs Tirzepatide

Function

While AOD-9604 is studied as an anti-obesity peptide that can reduce weight gain and increase fat oxidation in obese animal models with generally neutral effects on IGF-1 and glucose metabolism in early human trials71111115, Tirzepatide is approved for type 2 diabetes and obesity, producing larger HbA1c and body-weight reductions than semaglutide in head-to-head trials24.

Mechanism

While AOD-9604 works as a synthetic fragment of human growth hormone corresponding to residues 176–191 with an added N-terminal tyrosine, retaining lipolytic but not growth-promoting actions; proposed to stimulate lipolysis and inhibit lipogenesis in adipose tissue, partly via β3-adrenergic pathways without significantly activating the full GH receptor–IGF-1 axis6171111, Tirzepatide is a 39-amino-acid synthetic peptide primarily based on GIP sequence with C20 fatty diacid conjugation that acts as a dual agonist at GIP and GLP-1 receptors, enhancing glucose-dependent insulin secretion, suppressing glucagon, delaying gastric emptying, and reducing appetite24.

Length and Sequence

AOD-9604 is 16 amino acids long, whereas Tirzepatide is longer as it has a length of 39 amino acids. AOD-9604 is made up of a sequence of Tyrosine, Leucine, Arginine, Isoleucine, Valine, Glutamine, Cysteine, Arginine, Serine, Valine, Glutamic acid, Glycine, Serine, Cysteine, Glycine, Phenylalanine. Tirzepatide is made up of a sequence of sequence data not available in the current dataset.

Receptor

AOD-9604

Acts indirectly on adipocytes, with mechanistic work implicating β3-adrenergic receptor–linked signaling in fat metabolism rather than direct GH receptor activation71111

Tirzepatide

Glucose-dependent insulinotropic polypeptide receptor (GIPR) and GLP-1 receptor (GLP1R) 24

Organism or Origin

AOD-9604

Synthetic peptide fragment derived from human pituitary growth hormone (GH1 protein) 111107114

Tirzepatide

Synthetic dual GIP/GLP-1 receptor agonist modeled on human incretin hormones2480

Gene

AOD-9604

GH1

Tirzepatide

Not assigned in the current dataset.

Sources

61AOD-9604 – hGH 176–191 Analog Research Peptide ..., https://www.polybiotech.co/products/aod-9604-5mg
71Body-Fat Metabolism: AOD-9604 & GH Fragment 176–191 - Tide Labs, https://tidelabs.co.uk/blogs/articles/aod-9604-gh-frag-176-191-research-on-body-fat-metabolism
107Growth hormone 1 - Wikipedia, https://en.wikipedia.org/wiki/Growth_hormone_1
111Effects of Human GH and Its Lipolytic Fragment (AOD9604) on Lipid ..., https://academic.oup.com/endo/article/142/12/5182/2988749
114GH1 growth hormone 1 GH GH-N GHN IGHD1B hGH-N, https://www.sigmaaldrich.com/US/en/genes/gh1
115Peptide Spotlight: AOD 9604 - The Wellness Lounge, https://www.akwellnesslounge.com/blog/peptide-spotlight-aod-9604
24Tirzepatide - a dual GIP and GLP-1 (GLP1) receptor agonist, https://gpnotebook.com/pages/diabetes-and-endocrinology/tirzepatide-a-dual-gip-and-glp-1-glp1-receptor-agonist
80GLP-1 Localisation and Proglucagon Gene Expression in ..., https://pmc.ncbi.nlm.nih.gov/articles/PMC6200298/