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Targeting Androgen Signaling in Urothelial Cell Carcinoma - Neoadjuvant
Plain-language guide to NCT05839119: phase 1 interventional trial of Degarelix, 2 participants. Who took part, design and what was measured.
Key Facts
- Registry ID
- NCT05839119
- Phase
- phase 1
- Status
- terminated early
- Start
- 2023-10-02
- Completion (planned or actual)
- 2025-07-01
- Participants
- 2 (actual)
- Design
- na, open label (everyone knows who gets what), treatment
- Conditions studied
- Urothelial Carcinoma Bladder; Androgen Receptor Positive
- Results posted
- not yet
What This Study Did, in Plain Language
What Was Tested
This registered phase 1 trial tested Degarelix.
It had 1 arm (groups): Treatment (experimental).
The registry classes the interventions as combination product and drug.
More on the Plan
For patients with muscle-invasive disease (stage II and IIIA), standard of care therapy is neoadjuvant chemotherapy followed by radical cystectomy.
UCC is more common in men than women, with incidence rates of 3:1 to 4:1.
Two prospective human clinical trials related to this concept have been performed.
This study was closed due to poor accrual after accruing only one patient.
Who Took Part
2 actual participants took part.
It was open to people of any sex aged from 18 years with no upper age limit.
Healthy volunteers were not accepted; participants needed the condition being studied.
Examples of who could join: Patients must have the following:. Histologically confirmed muscle invasive urothelial cell carcinoma of the bladder (pT2 - pT4). Eligible for standard cisplatin/gemcitabine chemotherapy as determined by the treating Medical Oncologist. Age ≥18 years. Patients must have adequate organ and marrow function as defined below:.
The full record lists 23 inclusion and 4 exclusion criteria; among the exclusions: patients who have previously received systemic or intravesical gemcitabine or platinum-containing chemotherapy; patients with uncontrolled intercurrent illness, as determined by the treating physician.
How the Study Was Run
Design: single-group and open-label.
Everyone knew when Degarelix was being given (open label), which is simpler to run but leaves more room for expectations to affect what is reported.
Everyone received the same intervention, so there was no separate comparison group inside the trial.
It started in 2023-10-02 with completion listed for 2025-07-01.
It ran at 1 site in United States.
Its stated primary purpose is treatment.
What Was Measured
The main thing measured (primary outcome): Pathologic complete response rate (pCR) (time frame: Cystectomy following 4 (21-Day) cycles with Gemcitabine/Cisplatin).
It also tracked 4 secondary outcomes, for example Rate of non-muscle invasive disease post neoadjuvant chemotherapy (ypT0, ypTis, ypTa, ypT1), Relapse free survival at 2 years, Relapse free survival at 5 years and AR positivity in patients with a non-pCR at cystectomy.
What This Means in Plain Language
Put simply, this is a phase 1 trial of Degarelix in 2 people.
Its size is small, so on its own it can only give an early look.
It ended early (terminated); no results are posted to the registry yet, so nothing here describes outcomes.
More context: the Degarelix compound page, all human trials.
Our Notes on the Compound
Degarelix: A GnRH antagonist injection (Firmagon) for advanced prostate cancer that lowers testosterone within days without the initial surge seen with agonists.
Related Pages
Source: ClinicalTrials.gov record. This explanation is written by PeptideWhiz from the public record. For research and education only. Not medical advice; no dosing information is given.