GnRH antagonist

Degarelix

US: FDA-approvedEU: AuthorisedUK: AuthorisedCA: AuthorisedAU: RegisteredCH: AuthorisedBR: RegistadoRS: Not on the registerSG: RegisteredTR: Not on the register

Answer

Degarelix is authorised or registered in the US, the EU, the UK, Canada, Australia, Switzerland, Brazil and Singapore: 8 of the 10 registers read. Highest trial phase: Phase 3 (7 phase 3 trials, 0 with posted results). It has 187 registered trials, 51 of them running. Brand names on the FDA label register: Firmagon.

RegulatorTrial register10 regulators' registers, read 2026-09-03 to 2026-10-03 · ClinicalTrials.gov and EU CTIS, read 2026-10-03

Not medical, legal or regulatory advice.

Registered trials187Trial register ClinicalTrials.gov and EU CTIS
Running now51Trial register recruiting, active or enrolling
Results posted51Trial register with results on the register
Stopped early10.2%Trial register all peptides: 10%

187 trials by status

Trial register
Running 51Completed 84Stopped early 19Status unknown 15Other or not stated 18

ClinicalTrials.gov and EU CTIS · read 2026-10-03 · 51 trials have posted results

Trials first submitted per year

Trial register

ClinicalTrials.gov first-submitted date, last 10 years · read 2026-10-03. 2026 is not complete. 108 trials carry no first-submitted date (EU CTIS publishes none, or the year is outside this range).

Status by jurisdiction

World map
Authorised or registeredNot on the register, or withdrawnNot read yet, or status unknown
WhereStatusRegisterRead
United StatesFDA-approvedFDA, openfda2026-10-03
European UnionAuthorisedEMA, ema2026-10-03
United KingdomAuthorisedMHRA, uk-mhra2026-10-03
CanadaAuthorisedHealth Canada, ca-dpd2026-10-03
AustraliaRegisteredTGA, au-artg2026-10-03
SwitzerlandAuthorisedSwissmedic, ch-swissmedic2026-10-03
BrazilRegistadoANVISA, br-anvisa2026-10-03
SerbiaNot on the registerALIMS, rs-alims2026-09-03
SingaporeRegisteredHSA, sg-hsa2026-09-03
TurkeyNot on the registerTITCK, tr-titck2026-09-03

An EU decision applies in the 30 territories the EU register covers: its member states, and Iceland, Liechtenstein and Norway. A dashed tile has no register read for this peptide.

Side effects

Trial register
2 placebo-controlled trials · 368 people on Degarelix · grey is placebo
Injection site erythema14.1% 0%
Injection site pain8.4% 0%
Injection site induration7.8% 0%
Hypertension6.2% 7.1%
Back pain4.9% 9.2%
ClinicalTrials.gov posted results · read 2026-10-03All side effects

CHANGE ALERTS

Get an email when this changes

One email when the status of Degarelix changes on the register. You confirm your address first.

REGISTERED TRIALS

Newest 10 of 187 trials

All 187 trials
NCT01630967
Efficacy Study of Switching to a Lutenizing Hormone-releasing Hormone (LHRH) Antagonist From a LHRH Agonist to Treat Progressive C
withdrawn before enrolling anyone · register updated 2026-10-01
NCT04989946
Androgen Deprivation, With or Without pTVG-AR, and With or Without T-Cell Checkpoint Blockade, in Patients With Newly Diagnosed, H
running, but no longer enrolling · register updated 2026-09-30
NCT03070886
Antiandrogen Therapy and Radiation Therapy With or Without Docetaxel in Treating Patients With Prostate Cancer That Has Been Remov
running, but no longer enrolling · register updated 2026-09-14
NCT07335796
A Study of BMS986365 in Combination With Degarelix in People With Prostate Cancer
running, but no longer enrolling · register updated 2026-09-11
2023-509494-23-00
DARIUS : A RANDOMIZED NON-COMPARATIVE PHASE II MULTICENTRIC TRIAL ON SHORT TERM DAROLUTAMIDE (ODM-201) CONCOMITANT TO RADIATION TH
no status recorded · register updated 2026-09-07
2025-521859-23-00
A phase Ib/II open-label, multi-center study of the DNA protein kinase inhibitor AMO959 with lutetium (177Lu) vipivotide tetraxeta
no status recorded · register updated 2026-09-03
NCT02005887
TRial on the Endocrine Activity of Neoadjuvant Degarelix
completed · register updated 2026-09-02
NCT04633252
A Phase I/II Study of PDS01ADC With Docetaxel and Abiraterone in Adults With Metastatic Castration Sensitive and PDS01ADC With Doc
currently recruiting participants · register updated 2026-08-28
2022-503040-41-00
An international prospective open-label, multi-center, randomized, non-comparative phase II study of lutetium [177Lu] vipivotide t
no status recorded · register updated 2026-08-26
NCT05501704
ETHAN - ET for Male BC
currently recruiting participants · register updated 2026-08-24

All peptides · Method

WEEKLY

Register Watch, weekly

New trials, approvals and enforcement actions. One email a week.