en · de · es · fr · pt
aod-9604-notes.peptides3626.com › Faq › Research And Regulatory Status — Field Notes

Research And Regulatory Status — Field Notes

By Editorial Desk · published 2025-08-16 · last reviewed 2025-10-08 · Faq

anti-doping comes up often in conversation and rarely with the context attached. Here we lay out the basics in order, then work through the practical considerations.

Updated 2025-10-08. Numbers and descriptions here follow the published literature rather than marketing material.

Research and Regulatory Status

Research interest in AOD-9604 often focuses on whether it can influence lipid metabolism without the growth-promoting or glucose-related effects of full-length hGH. This question remains unresolved, and findings depend on model, dose, and measurement method. Some reviews treat the peptide as a historical obesity candidate rather than an active therapeutic. Others cite it in discussions of peptide fragments, metabolic signaling, and performance-enhancing substances. Clear conclusions are limited by the small number of rigorous, independent human studies.

AOD-9604 has been investigated primarily as a potential treatment for obesity and related metabolic conditions. Early laboratory work examined its effects on fat cells, and later studies moved into animal models and human clinical trials. Some trials reportedly reached Phase II, but the program did not lead to an approved medicine. Published summaries often note that weight-loss results were modest or inconsistent. The full trial data are not all publicly available in detail.

Regulatory treatment of AOD-9604 has varied. In sports anti-doping, the peptide became widely discussed during a 2013 investigation into an Australian professional sports club. Authorities at the time debated whether it fell under prohibitions on growth hormone and related substances. Later clarifications and updated lists have addressed the compound in different ways. Anyone seeking current status should consult the latest applicable rules, and commercial supply for human use is not authorized in major markets.

Regulatory and Analytical Context

In laboratory settings, AOD-9604 is commonly supplied as a lyophilized powder and stored cold to limit degradation. Reconstituted solutions are typically kept refrigerated or frozen, depending on the buffer and concentration, and protected from repeated freeze-thaw cycles. Stability can be influenced by pH, temperature, and the presence of proteases. Purity is usually assessed by high-performance liquid chromatography and mass spectrometry. These practices support reproducibility, but they do not imply safety or efficacy for any human use.

Regulatory status: AOD-9604 is not approved as a therapeutic drug in the United States, European Union, or other major markets. It is listed by the World Anti-Doping Agency as a prohibited substance in sport, specifically under growth hormone fragments. Many jurisdictions restrict its sale for human consumption. Products marketed online may not meet pharmaceutical quality standards. The legal status varies by country and often depends on whether the material is presented as a research chemical, supplement, or drug.

Detection and characterization of AOD-9604 in research and anti-doping settings typically rely on mass spectrometry coupled with liquid chromatography. These methods can identify the peptide by its mass and fragmentation pattern. Immunoassays may also be used in some screening contexts, but they can cross-react with related peptides. Because the molecule is small and may be present at low concentrations, sample preparation and method validation are important. Confirmatory analysis usually requires comparison with a certified reference standard.

Aod-9604 at a glance

PropertyValueNotes
Primary research areaObesity and metabolic regulationStudied in cell, animal, and human models
Highest reported trial phasePhase IIPublic summaries describe mixed results
Common route in trialsSubcutaneous injectionTypical for peptide therapeutics
Regulatory example2013 Australian anti-doping reviewClassification was debated at the time
Approval statusNot approved as a human medicineStatus can change by jurisdiction

Handling And Analytical Properties

Identity and purity are commonly checked with reversed-phase high-performance liquid chromatography and mass spectrometry. RP-HPLC separates the peptide from related impurities and can estimate purity by peak area. Mass spectrometry confirms molecular mass and helps detect sequence variants or truncations. Some laboratories use amino acid analysis or peptide mapping for additional characterization. No single method proves biological activity; these techniques establish chemical identity and purity only. They also require suitable reference standards for confident comparison.

Commercial AOD-9604 may vary in purity, counterion content, and residual moisture. Certificates of analysis often report HPLC purity, mass confirmation, and appearance, but testing methods differ between suppliers. Independent verification is sometimes used because labeled content may not match actual peptide amount. Stability under different pH and temperature conditions is not fully standardized across studies. Researchers generally treat lyophilized material as the reference form for weighing and reconstitution. Moisture content can affect accurate mass measurement.

AOD-9604 is typically supplied as a lyophilized white to off-white powder. In this form, it is relatively stable when kept cool, dry, and protected from light. Common storage recommendations place it at −20 °C or below for long-term retention. Reconstituted solutions are less stable and are often kept at 2–8 °C for short periods. Freeze-thaw cycles should be minimized because they can promote aggregation or loss of peptide content. Vials are usually sealed under inert gas to reduce oxidation.

Related pages on this site

Identity and Research Origin

Regulatory status varies by country. In the United States, AOD-9604 is not approved as a prescription drug. It is sometimes sold as a research chemical or dietary supplement, though such marketing may fall outside legal frameworks. The World Anti-Doping Agency prohibits its use in sport. Researchers must obtain it through legitimate suppliers and follow institutional rules. Its legal classification continues to evolve as authorities increasingly assess peptide products more broadly.

AOD-9604 is a synthetic peptide whose sequence matches the C-terminal fragment of human growth hormone, specifically residues 176 through 191. This region differs from the full hormone in its receptor interactions. The peptide is not a growth hormone secretagogue and does not bind the growth hormone receptor in the same manner. Researchers have examined it for effects on lipid metabolism, but its exact pharmacological profile remains an active area of study.

Mechanism and Regulatory Status

Clinical development of AOD-9604 included trials in people with obesity. Reports from early-phase and mid-phase studies described modest or inconsistent changes in body weight. A phase IIb program did not meet its primary endpoint, and the compound was not approved for medical use. Differences in formulation, delivery route, and participant characteristics may explain some of the variation. Later investigations explored whether the peptide might have effects in other tissues, including cartilage.

Regulatory treatment of AOD-9604 is shaped by its classification as a peptide hormone. The World Anti-Doping Agency lists it as a prohibited substance, and many national anti-doping organizations adopt that list. It does not hold approval as a prescription medicine in the United States, the European Union, or other major markets. Products sold online are frequently labeled for research use only and may not undergo independent quality testing. Import and possession rules differ by country, so legal status depends on local law.

Background and Development History

AOD9604 is a synthetic peptide modeled on the C-terminal region of human growth hormone. It corresponds to a short sequence near the end of the 191-amino-acid hormone, often described as residues 176–191 or a related fragment. Researchers designed it to separate metabolic effects from the growth-promoting actions of full-length growth hormone. Early work in the 1990s explored it as a candidate for weight and lipid disorders. It is not a naturally circulating hormone fragment produced in large amounts.

Laboratory studies have reported that AOD9604 can increase lipolysis and reduce lipid accumulation in fat cells. The precise molecular target remains uncertain, and the compound does not appear to activate the growth hormone receptor in the same way as full-length hGH. Proposed mechanisms include effects on beta-adrenergic signaling and enzymes involved in fatty acid synthesis, but these pathways are not firmly established. Because most evidence comes from cell and animal models, whether the same effects occur in humans is an open question.

Background from the literature

took over mass production, but without an exclusive license, as the patent was transferred to the Medical Research Council to prevent exploitation. In the summer of 1923 Macleod resumed other research. He took interest in teleost fish, which have separate regions of islet and acinar tissue in their pancreas. Working at the Marine Biological Station in St. Andrews, New Brunswick, he made extracts from each of those parts separately and proved that insulin is derived from the insular and not the acinar tissue of the pancreas. Meanwhile, Banting remained in Toronto and relationships soon deteriorated again because of conflicting press accounts. Banting eventually started to claim that he deserved all the credit and that Macleod had only hindered him the whole time and had made no contribution other than to leave the keys to the laboratory when he went on vacation. MacLeod wrote a report on the discovery in 1922 to explain his side of the story, but otherwise refrained from active involvement in controversy about credit. Banting hated him passionately, and the two never spoke again. When Macleod left the University of Toronto in 1928, Banting harbored such enmity that he refused to attend the farewell dinner for Macleod.

the Division Artillery consisted of: Battery A, 319th Artillery Battery B, 319th Artillery Battery C, 319th Artillery (Battery C, 320th Artillery after 1960; C-319th accompanied the 2d ABG, 503d Infantry on its assignment to the 25th Infantry Division) Battery D, 320th Artillery Battery E, 320th Artillery Battery B, 377th Artillery additional division elements consisted of: 82nd Medical Company 82nd Signal Battalion 82nd Aviation Company Troop A, 17th Cavalry 307th Airborne Engineer Battalion 407th Supply and Transportation Battalion (The 82nd Quartermaster Parachute Supply and Maintenance Company [activated 1 March 1945] was reorganized and redesignated as Company B, 407th S&T Battalion.) 782nd Maintenance Battalion The pentomic organization was unsuccessful. In 1964, the division reorganized into three brigades of three battalions, the Reorganization Objective Army Division (ROAD) organization.

=== People's Republic === In 1950, CCP chairman Mao Zedong announced support of traditional Chinese medicine; this was despite the fact that Mao did not personally believe in and did not use TCM, according to his personal physician Li Zhisui. In 1952, the president of the Chinese Medical Association said that, "This One Medicine, will possess a basis in modern natural sciences, will have absorbed the ancient and the new, the Chinese and the foreign, all medical achievements – and will be China's New Medicine!" During the Cultural Revolution (1966–1976), the CCP and the government emphasized modernity, cultural identity, and China's social and economic reconstruction and contrasted them to the colonial and feudal past. The government established a grassroots health care system as a step in the search for a new national identity, tried to revitalize traditional medicine, and made large investments in traditional medicine to try to develop affordable medical care and public health facilities. The Ministry of Health directed health care throughout China and established primary care units. Chinese physicians trained in Western medicine were required to learn traditional medicine, while traditional healers received training in modern methods. This strategy aimed to integrate modern medical concepts and methods and revitalize appropriate aspects of traditional medicine. Therefore, traditional Chinese medicine was re-created in response to Western medicine.

The Russell 1000 is a stock market index tracking the stock performance of 1,000 companies listed on stock exchanges in the United States that are considered to have large or medium market capitalizations. The Russell 1000 is a subset of the Russell 3000. It is maintained by FTSE Russell and its components are determined via strict rules-based methodology, with an annual rebalancing in late June, the only time new entrants are added to the index. The index is a public-float-weighted/capitalization-weighted index. The index includes approximately 93% of the total market capitalization of U.S. public companies, with an aggregate market capitalization of more than $70.70 trillion as of September 25, 2026. As of June 16, 2026, the median market capitalization of the components of the index is $17.5 billion and components range in market capitalization from $5.7 billion to $4.8 trillion. Products linked to the Russell 1000 include index funds (exchange-traded funds/ETFs and mutual funds) as well as derivatives (options and futures contracts), which are available for trading in many countries with the goal of replicating the performance of the index. Also available are modified index funds; they replicate the performance of the index with modifications such as the use of covered call strategies, equal weighting, performance buffers, leverage, inclusion of only growth or value stocks, or exclusion of certain sectors, all with the goal of changing the risk/return and yield.

=== Induction of Thy-1 expression === Agents shown to induce Thy-1 expression include: Thymopoietin, thymosin, prostaglandins, nerve growth factor, IL-1, TNF, PMA, Ca2+ ionophore, and diacylglycerol (DAG).

Sources: en.wikipedia.org

Further detail

==== Elimination ==== Only 1% of the drug was eliminated in urine unchanged, whereas 13% was eliminated as O-H-LSD within 24 hours. Aghajanian and Bing (1964) found LSD had an elimination half-life of only 175 minutes (about 3 hours); however, using more accurate techniques, Papac and Foltz (1990) reported that 1 μg/kg oral LSD given to a single male volunteer had an apparent plasma half-life of 5.1 hours, with a peak plasma concentration of 5 ng/mL at 3 hours post-dose. In a more modern 2015 study, concentrations of LSD decreased following first-order kinetics with a half-life of 3.6 ± 0.9 hours and a terminal half-life of 8.9 ± 5.9 hours. A 2026 review found half-lives ranging from 3.0 to 4.3 hours in different studies. LSD has a longer half-life of on average 8 hours in CYP2D6 poor metabolizers or people taking CYP2D6 inhibitors due to slower metabolism.

==== Polysome profiling ==== Polysome profiling is a technique used to characterize the degree of translation of one or more mRNAs. A highly translated mRNA exists as a polysome, meaning it is complexed with multiple ribosomes. mRNAs translated at lower levels are complexed with fewer ribosomes. In polysome profiling, a sucrose gradient is used to separate molecular complexes in a cell lysate based on size. The fractions from the column are analyzed by sequencing or other methods. The translation rate of mRNAs is determined based on their detection and abundance in the fractions of lower and higher molecular weight.

Most merchandise is already packaged when it arrives at the supermarket. Packages are placed on shelves, arranged in aisles and sections according to type of item. Some items, such as fresh produce, are stored in bins. Those requiring an intact cold chain are in temperature-controlled display cases. While branding and store advertising will differ from company to company, the layout of a supermarket remains virtually unchanged. Although big companies spend time giving consumers a pleasant shopping experience, the design of a supermarket is directly connected to the in-store marketing that supermarkets must conduct to get shoppers to spend more money while there. Every aspect of the store is mapped out and attention is paid to color, wording and surface texture. The overall layout of a supermarket is a visual merchandising project that plays a major role. Stores can creatively use a layout to alter customers' perceptions of the atmosphere. Alternatively, they can enhance the store's atmospherics through visual communications (signs and graphics), lighting, colors, and scents. For example, to give a sense of the supermarket being healthy, fresh produce is deliberately located at the front of the store. In terms of bakery items, supermarkets usually dedicate 30 to 40 feet of store space to the bread aisle. Supermarkets are designed to "give each product section a sense of individual difference and this is evident in the design of what is called the anchor departments; fresh produce, dairy, delicatessen, meat and the bakery".

=== Passion fruit === The term "passion fruit" in English comes from the passion flower, as an English translation of the Latin genus name, Passiflora, and may be spelled "passion fruit", "passionfruit", or "passion-fruit". Around 1700, the name Passiflora was given by missionaries in Brazil as an educational aid to convert the Indigenous inhabitants to Christianity: its name was flor das cinco chagas or "flower of the Five Wounds" to illustrate the crucifixion of Christ and his resurrection, with other plant components also named after instruments of the Passion of Jesus.

Sources: en.wikipedia.org

Frequently asked questions

Has AOD-9604 been approved as a medicine?

No major medicines regulator appears to have approved AOD-9604 for human therapeutic use. It has been studied in clinical trials, but those programs did not result in a marketed drug.

Why is AOD-9604 discussed in anti-doping?

It became prominent during a 2013 Australian sports investigation that examined whether it was a prohibited growth-hormone-related substance. Subsequent interpretations and list updates have varied, so current rules should be checked directly.

What did human trials of AOD-9604 find?

Published summaries generally report limited or inconsistent weight-loss effects, and complete trial data are not widely available. The studies were not sufficient to establish it as an effective obesity treatment.

Is AOD-9604 approved for medical use?

No major regulatory agency has approved AOD-9604 as a medicine. It is treated as an experimental peptide in research settings. Some countries restrict its sale or import.

Network