AOD-9604
Growth-hormone fragment. Human trials did not show meaningful weight loss.
What it is
A modified fragment of human growth hormone corresponding to its C-terminal region.
What it does
Originally investigated for fat metabolism without the systemic growth effects of full growth hormone.
Does it work?
This one is unusual in that human trials were run — and largely failed to demonstrate the weight-loss benefit hoped for. It is still marketed heavily. Treat historical trial failure as meaningful evidence.
Claims vs data
Each marketing claim, tagged by what the evidence actually supports.
| Burns fat without growth-hormone side effects | weak evidence |
| Failed to beat placebo in human trials | supported |
Reference figures
Quoted from published reference material. These are not Peptuity recommendations.
The evidence, counted
Live counts from Europe PMC and ClinicalTrials.gov.
26 publications indexed, 0 registered interventional studies, no randomised controlled trials indexed. Evidence is minimal.
query: "AOD-9604" · checked 2026-08-07
Most-cited literature
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Rimonabant for overweight or obesity
Curioni C, André C. · Cochrane Database Syst Rev 2006 · 76 citations
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Analytical approaches for the detection of emerging therapeutics and non-approved drugs in human doping controls
Thevis M, Schänzer W. · J Pharm Biomed Anal 2014 · 45 citations
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Obesity drugs in clinical development
Halford JC. · Curr Opin Investig Drugs 2006 · 39 citations
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Simplifying and expanding the screening for peptides <2 kDa by direct urine injection, liquid chromatography, and ion mobility mass spectrometry
Thomas A, Görgens C, Guddat S, Thieme D, Dellanna F, Schänzer W, Thevi · J Sep Sci 2016 · 36 citations
Regulatory status
Formal, dated regulatory actions.
WADA — Prohibited List 2026
Prohibited in sport — WADA S0 (substance without any health-authority approval)
Common questions
Did AOD-9604 fail its human trials?
Largely, yes. Obesity trials were run and did not demonstrate the hoped-for weight loss versus placebo. That failure is meaningful evidence.
Why is it still marketed?
Because the market rarely retires a compound for failing trials. The marketing typically cites the mechanism and early work, not the trial outcomes.
Is it at least safe?
The trials reported reasonable short-term tolerability — but tolerability without efficacy is not a reason to use something.
Related compounds
Tesamorelin
Approved GHRH analogue for HIV-associated lipodystrophy — a narrow, real indication.
Ipamorelin
Selective growth-hormone secretagogue. Raises GH; downstream benefits less proven.
IGF-1 LR3
Potent, long-acting IGF-1 analogue. Real anabolic signalling, real risk profile.