AOD-9604
hGH 176-191 · Tyr-hGH(177-191)
A changed fragment of human growth hormone, developed as an obesity drug. No such medicine exists, and there are no studies with random groups.
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- Type
- Peptide
- Stage
- Work stopped
- Safety
- Not known
- Risk of fakes
- Medium
- Checked
- Not yet
Safety. There are no studies with random groups. A 2026 review says very little is known about the safety of peptides like this one in people. Sources: study 1.
Risk of fakes. Reviews name it among peptides sold outside medical care. We found no tests of what these products contain. Sources: study 1.
Is it legal
| Where | Status | Checked | |
|---|---|---|---|
| PL | No approval | The European medicines database (EMA) lists no such medicine in Poland (9 October 2026). The Polish register was down, so we could not check it directly. Source | Not yet |
| EU | No approval | The European medicines database (EMA), which covers EU and national approvals, lists no such medicine (9 October 2026). Source | Not yet |
| US | No approval | The FDA drug register has no such medicine. Source | Not yet |
How much research exists
These are search results. A count shows how much exists, not how good the studies are. 1 Nov 2026.
What studies show
- DFat loss
Not clear. Obese rats gained less weight. There are no studies with random groups in people.
Reported side effects
What doctors, patients and companies reported to the US medicines agency (FDA), and single cases described in medical journals. A report says what happened to someone after taking the substance. It does not prove the substance caused it, and it does not say how often it happens. Reports do not change any grade.
Reports to the FDA (USA)
- Reports
- 0
- Of these, serious
- 0
The FDA has no reports. That is not a sign of safety: almost nobody reports substances from outside pharmacies.
Cases described in medical journals
We found no published case of harm.
FDA reports come from openFDA, cases from a PubMed search. The editors have not read these cases yet. Titles stay in the original language. As of 3 Nov 2026.
Studies we have read
| Studies | Kind of study | Who was studied | People | Duration | Dose as studied | Who paid |
|---|---|---|---|---|---|---|
| Metabolic studies of a synthetic lipolytic domain (AOD9604) of human growth hormone. | In animals | rats, Obese Zucker rats | – | 3 wk | – | Unknown |
More papers we found
| Studies | Kind of study | Year |
|---|---|---|
| The emerging landscape of performance-enhancing peptides modulating GH-IGF1 axis: bridging the gap between clinical evidence and patient self-administration. | Review of studies | 2026 |
| Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions. | Review of studies | 2026 |
| Analytical approaches for the detection of emerging therapeutics and non-approved drugs in human doping controls. | Review of studies | 2014 |
| Current updates in the medical management of obesity. | Review of studies | 2012 |
| [Obesity: a review of currently used antiobesity drugs and new compounds in clinical development]. | Review of studies | 2007 |
| Potential role of new therapies in modifying cardiovascular risk in overweight patients with metabolic risk factors. | Review of studies | 2006 |
| Obesity drugs in clinical development. | Review of studies | 2006 |
| AOD-9604 Metabolic. | Review of studies | 2004 |
We found these papers automatically in PubMed. The editors have not read them yet, and they do not affect any grade. Titles stay in the original language.
Short answers
- Does AOD-9604 work?
- A changed fragment of human growth hormone, developed as an obesity drug. No such medicine exists, and there are no studies with random groups. Fat loss: grade D, not clear. Obese rats gained less weight. There are no studies with random groups in people.
- Is AOD-9604 legal?
- PL: No approval. The European medicines database (EMA) lists no such medicine in Poland (9 October 2026). The Polish register was down, so we could not check it directly. EU: No approval. The European medicines database (EMA), which covers EU and national approvals, lists no such medicine (9 October 2026). US: No approval. The FDA drug register has no such medicine.
- Is AOD-9604 banned in sport?
- Banned in sport, WADA 2026.
- Is AOD-9604 safe?
- Not known. There are no studies with random groups. A 2026 review says very little is known about the safety of peptides like this one in people.