Abarelix
From PeptidePlaza, the free peptide reference · Entry #1026 · Anti-Aging · Sources fetched 2026-09-10 · Editorial standards
Abarelix (also known as Plenaxis, PPI-149, abarelixum, Abarelix Acetate) is a anti-aging research peptide. Abarelix is a gonadotropin-releasing hormone receptor antagonist approved by the FDA for certain prostate cancer cases.
Abarelix is a gonadotropin-releasing hormone (GnRH) receptor antagonist. It functions by blocking the GnRH receptor, thereby reducing the production of sex hormones. Abarelix is FDA-approved and has reached Phase 4 clinical trials for neoplasms and Phase 3 for castration-resistant prostatic neoplasms. Research on abarelix has focused on its role as a first-in-class GnRH antagonist for prostate cancer, with studies evaluating its therapeutic potential and clinical applications.
1 Mechanism of action
Gonadotropin-releasing hormone receptor antagonist (antagonist)
Primary targets: Gonadotropin-releasing hormone receptor
2 Reported effects
Effects below are those reported in the published literature cited on this page. They are not claims of clinical benefit and not medical advice.
2.1 Indicated / studied for
- Neoplasms
- Prostatic Neoplasms, Castration-Resistant
3 Chemical and physical properties
| CAS number | 183552-38-7 |
|---|---|
| Molar mass | 1416.1 g/mol |
| Purity (typical) | Not independently verified |
| Storage | −20 °C, lyophilised powder, desiccated |
| Solubility | Sterile water / bacteriostatic water |
| Receptors / targets | Gonadotropin-releasing hormone receptor |
4 Research studies (8)
- Gateways to Clinical Trials. June 2002
Methods and findings in experimental and clinical pharmacology (2002) · Review - Gateways to clinical trials
Methods and findings in experimental and clinical pharmacology (2002) · Review - Technology evaluation: Abarelix, Praecis pharmaceuticals
Current opinion in molecular therapeutics (2000) · RCT - Abarelix: abarelix-depot-F, abarelix-depot-M, abarelix-L, PPI 149, R 3827
Drugs in R&D (2003) · Review - Abarelix for injectable suspension: first-in-class gonadotropin-releasing hormone antagonist for prostate cancer
Future oncology (London, England) (2006) · Review - Therapeutic outcomes of the LHRH antagonists
Expert review of pharmacoeconomics & outcomes research (2017) · Review - Abarelix: the first gonadotrophin-releasing hormone antagonist for the treatment of prostate cancer
Expert opinion on pharmacotherapy (2004) · Review - GnRH Peptide Antagonist: Comparative Analysis of Chemistry and Formulation with Implications for Clinical Safety and Efficacy
Pharmaceuticals (Basel, Switzerland) (2024) · Review
5 Safety and risk profile
5.1 Regulatory status
Abarelix is currently classified as FDA approved. Approval applies to specific clinical indications and dosing; research-grade material is not the approved product.
6 Frequently asked questions
- What is Abarelix used for?
- Abarelix is used for the treatment of certain neoplasms, specifically in cases of prostatic neoplasms that are castration-resistant. It is an FDA-approved medication.
- How does Abarelix work?
- Abarelix functions as a gonadotropin-releasing hormone (GnRH) receptor antagonist. By blocking the GnRH receptor, it reduces the body's production of sex hormones, which can be beneficial in hormone-sensitive cancers.
- Is Abarelix FDA approved?
- Yes, Abarelix is FDA approved. It received its first approval in 2003 and has been studied extensively for its indicated uses.
- What class of drug is Abarelix?
- Abarelix is classified as a gonadotropin-releasing hormone receptor antagonist. This means it works by blocking the receptors for GnRH, a hormone involved in the regulation of sex hormones.
7 References
- Abarelix — compound summary PubChem. View source
- Abarelix — molecule record ChEMBL. View source
- Abarelix — published literature (55 records) PubMed. View source
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