AOD9604
Orally active, lipolytic fragment of human growth hormone
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AOD9604 is an orally active, lipolytic 16-amino acid peptide fragment of human growth hormone and derivative of the C-terminal domain of human growth hormone (HGH). It consists of HGH residues 176–191, with a tyrosine in place of the phenylalanine at the N-terminal end.[1] Initial human trials showed that it retains the lipolytic properties of human growth hormone without stimulating IGF-1 production.[2] However, later studies failed to demonstrate a sufficient lipolytic effect. Its development was terminated in 2007.[3][4] Despite its limited efficacy, AOD9604 is still banned in athletes and tested for in competition.[5][6][7]
| Names | |
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| IUPAC name
(2S)-2-[[2-[[(4R,7S,13S,16S,19S,22S,25R)-25-[[(2S)-5-amino-2-[[(2S)-2-[[(2S,3S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]-4-methylpentanoyl]amino]-5-carbamimidamidopentanoyl]amino]-3-methylpentanoyl]amino]-3-methylbutanoyl]amino]-5-oxopentanoyl]amino]-22-(3-carbamimidamidopropyl)-13-(2-carboxyethyl)-7,19-bis(hydroxymethyl)-6,9,12,15,18,21,24-heptaoxo-16-propan-2-yl-1,2-dithia-5,8,11,14,17,20,23-heptazacyclohexacosane-4-carbonyl]amino]acetyl]amino]-3-phenylpropanoic acid | |
| Other names
H-Tyr-Leu-Arg-Ile-Val-Gln-Cys(1)-Arg-Ser-Val-Glu-Gly-Ser-Cys(1)-Gly-Phe-OH | |
| Identifiers | |
3D model (JSmol) |
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| Abbreviations | YLRIVQCRSVEGSCGF |
| ChemSpider | |
PubChem CID |
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| UNII | |
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| Properties | |
| C78H123N23O23S2 | |
| Molar mass | 1815.10 g·mol−1 |
| Related compounds | |
Related compounds |
HGH Fragment 176–191 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Mechanism of action
AOD9604 appears to enhance lipolysis in mice by upregulating beta-3 adrenergic receptors. Beta-3 adrenergic receptor knockout mice are unresponsive to the lipolytic effects of AOD9604.[1]
Clinical data
In a 12 week randomised clinical trial, subjects receiving AOD9604 lost, on average, 1.8 kg more than those receiving placebo.[8] Development of AOD9604 was halted following insignificant efficacy in a later 24 week trial.[8]
