GnRH (Triptorelin)

GnRH (Triptorelin) is a synthetic decapeptide analog of gonadotropin-releasing hormone (GnRH), the hypothalamic peptide that governs the reproductive endocrine axis. Triptorelin is FDA-approved as a prescription drug (marketed as Trelstar) for specific clinical indications, making its pharmacology among the best-characterized of any peptide analog researched on this platform.

Mechanism of Action: Continuous (non-pulsatile) triptorelin exposure initially stimulates, then desensitizes, pituitary GnRH receptors — after an initial surge, downstream LH and FSH secretion is suppressed, driving gonadal sex-hormone production down to castrate levels. This biphasic agonist-then-suppression mechanism is well documented in classic GnRH-analog pharmacology reviews and confirmed in clinical trials measuring testosterone suppression during radiotherapy.

Research Applications: Hypothalamic-pituitary-gonadal axis suppression models Receptor desensitization and downregulation studies in continuous vs. pulsatile agonist dosing paradigms Comparative research against other GnRH agonists (leuprolide, goserelin) and antagonists Endocrine research requiring reversible gonadal hormone suppression in animal models

Platform Pricing Data (live, updated continuously): Peptides.SO tracks supplier listings for this compound. Because GnRH analogs are potent at very small quantities and clinical-grade triptorelin is a controlled prescription product, researchers should independently verify identity, purity, and concentration via COA/mass spectrometry before use in any protocol.

Cited Research: Conn PM, Crowley WF Jr. Gonadotropin-releasing hormone and its analogs. Annu Rev Med. 1994. PubMed PMID: 8198390. Chin SN, et al. Testosterone Suppression with Luteinizing Hormone-Releasing Hormone (LHRH) Agonists in Patients Receiving Radiotherapy for Prostate Cancer. Pharmacotherapy. 2018 Mar. PubMed PMID: 29337395.

For laboratory research only. Not for human or veterinary use, diagnosis, treatment, cure, or prevention of any disease. THIS PRODUCT IS NOT FOR HUMAN CONSUMPTION.