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Cetrorelix 78+78

AEterna Zentaris · Phase 3 active Small molecule

Cetrorelix is a gonadotropin-releasing hormone (GnRH) antagonist that suppresses luteinizing hormone and follicle-stimulating hormone to inhibit ovarian steroid production.

Cetrorelix is a gonadotropin-releasing hormone (GnRH) antagonist that suppresses luteinizing hormone and follicle-stimulating hormone to inhibit ovarian steroid production. Used for Hormone receptor-positive breast cancer (in combination with endocrine therapy), Ovarian cancer (hormone-sensitive).

At a glance

Generic nameCetrorelix 78+78
SponsorAEterna Zentaris
Drug classGnRH antagonist
TargetGnRH receptor
ModalitySmall molecule
Therapeutic areaOncology; Reproductive/Endocrinology
PhasePhase 3

Mechanism of action

Cetrorelix competitively blocks GnRH receptors in the pituitary gland, rapidly suppressing the release of LH and FSH without an initial flare effect. This leads to decreased estrogen and progesterone production, making it useful for hormone-dependent conditions. The 78+78 designation likely refers to a dual-dose formulation or dosing regimen in development.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results