Degarelix
Degarelix is a GnRH-receptor antagonist that rapidly suppresses pituitary signals driving testicular testosterone production.
At a glance
- Evidence stage
- Approved use
- Regulatory status
- FIRMAGON is FDA-approved for advanced prostate cancer.
- Research context
- Degarelix is a GnRH-receptor antagonist that rapidly suppresses pituitary signals driving testicular testosterone production.
What this is
- Degarelix is a GnRH-receptor antagonist that rapidly suppresses pituitary signals driving testicular testosterone production.
What this isn't
- A recommendation to use, prepare, combine, or administer a product
- Evidence that a related molecule or a differently formulated product has the same effects
Key terms
Degarelix is a GnRH-receptor antagonist that rapidly suppresses pituitary signals driving testicular testosterone production.
Blocking pituitary GnRH receptors lowers LH and FSH and consequently testosterone. Because degarelix is an antagonist, it suppresses the pathway without the initial testosterone rise associated with agonists. This is androgen deprivation for a defined cancer setting, not evidence that lowering testosterone improves health in people without that indication. FIRMAGON pharmacology.
Evidence limits
How to read the evidence
Rapid testosterone suppression is clinically distinct from proving longer survival or fewer cardiovascular events than another therapy. The pivotal study was open-label and focused on hormone control over one year. Treatment effects on quality of life and disease outcomes depend on cancer characteristics and the broader therapeutic plan; the absence of an initial hormone surge does not remove other consequences of androgen deprivation. Trial scope; FIRMAGON label.
Sources appraised 2026-10-28. Educational information; not medical advice. Study findings apply to the populations, preparations and outcomes described.
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