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Reproductive · FDA Approved

Cetrorelix (Cetrotide) Analog

FDA-approved

Written by Peptide Association Editorial TeamLast reviewed Editorial policy

01 · Overview

Cetrorelix is a synthetic decapeptide analogue of gonadotropin-releasing hormone that acts as a competitive GnRH receptor antagonist. By blocking pituitary GnRH receptors it suppresses luteinizing hormone and follicle-stimulating hormone secretion rapidly and without the initial agonist flare seen with GnRH agonists.

This makes it useful in controlled ovarian stimulation, where preventing a premature LH surge protects the timing of oocyte retrieval. Cetrotide was approved under NDA 021197 and generic cetrorelix acetate products are also listed in the FDA drug approval database.

02 · Research summary & key findings

Cetrorelix acetate was approved by the FDA in August 2000 for prevention of premature LH surges in women undergoing controlled ovarian stimulation, according to the FDA drug approval database. A Cochrane network meta-analysis of 338 randomized trials in 59,086 women found that in women with a predicted normal response, short GnRH antagonist protocols probably result in little or no difference in live birth or ongoing pregnancy compared with long GnRH agonist protocols, and may reduce ovarian hyperstimulation syndrome (PMID 40590303). The same analysis found antagonist protocols may yield slightly fewer oocytes than long agonist protocols (PMID 40590303).

03 · Regulatory status

Cetrorelix (Cetrotide) Analog has received FDA approval and is available for clinical use under appropriate medical supervision. Consult a qualified healthcare provider for prescribing information.

Cetrorelix (Cetrotide) Analog is an FDA-approved medicine prescribed for the conditions on its label. It is not part of our intake, so we do not propose protocols for it. If you think it may be relevant to you, talk to your own doctor. How to ask your doctor.

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Cetrorelix (Cetrotide) Analog is prescribed for the conditions on its label, and it is not part of our intake. If you are working on hormone optimization, a licensed clinician can tell you at a free consultation whether an FDA-approved or lawfully compounded treatment fits you, or whether nothing does.

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04 · Administration routes

  • Subcutaneous injection

References

  1. [1]Controlled ovarian stimulation protocols for assisted reproduction: a network meta-analysis Cochrane Database Syst Rev, 2025. PMID 40590303

Primary literature

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Disclaimer: This information is provided for educational and research purposes only. It is not intended as medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any peptide therapy. The Peptide Association does not endorse or recommend any specific treatment protocol. See our editorial policy for how this content is produced and reviewed. Clinicians: join the network.